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1.
Ecol Lett ; 27(7): e14461, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38953253

ABSTRACT

Under the recently adopted Kunming-Montreal Global Biodiversity Framework, 196 Parties committed to reporting the status of genetic diversity for all species. To facilitate reporting, three genetic diversity indicators were developed, two of which focus on processes contributing to genetic diversity conservation: maintaining genetically distinct populations and ensuring populations are large enough to maintain genetic diversity. The major advantage of these indicators is that they can be estimated with or without DNA-based data. However, demonstrating their feasibility requires addressing the methodological challenges of using data gathered from diverse sources, across diverse taxonomic groups, and for countries of varying socio-economic status and biodiversity levels. Here, we assess the genetic indicators for 919 taxa, representing 5271 populations across nine countries, including megadiverse countries and developing economies. Eighty-three percent of the taxa assessed had data available to calculate at least one indicator. Our results show that although the majority of species maintain most populations, 58% of species have populations too small to maintain genetic diversity. Moreover, genetic indicator values suggest that IUCN Red List status and other initiatives fail to assess genetic status, highlighting the critical importance of genetic indicators.


Subject(s)
Biodiversity , Conservation of Natural Resources , Genetic Variation , Animals
2.
Biota Neotrop. (Online, Ed. ingl.) ; 24(2): e20241645, 2024.
Article in English | LILACS-Express | LILACS | ID: biblio-1564050

ABSTRACT

Abstract Biological invasions are one of the major threats to biodiversity and good quality of life, resulting from the translocation of species by human action. There are more than 500 alien species currently invading ecosystems in Brazil, particularly plants and fishes, while little is known about invasive microorganisms. Although invasive alien species are present in all ecosystems in the country, most have been recorded in habitats with greater human interference, such as urban and peri-urban areas, farmland, dams, reservoirs, ports, and canals. Historically, the southern and southeastern regions of Brazil have had more invasive alien species, but there has been an increase in the number of invasive alien species in the central-western and northern regions in recent decades. The ornamental trade of plants and fishes as well as the illegal pet trade of wild mammals and reptiles are some of the main pathways for invasive species introduction and spread in Brazil. Breeding and cultivation systems that allow escape to natural areas are a relevant route of species introductions in freshwater ecosystems, while unintentional introductions from shipping and infrastructure are of extreme concern in marine ecosystems. The negative impacts of invasive alien species on the biota mainly include changes in community structure and local decrease in native species richness, mediated by predation, competition, and ecosystem changes. Most negative impacts are recorded for intentionally introduced species, such as fishes and plants, but unintentional introductions have led to impacts on good quality of life, with associated costs and impacts on human health. The management of biological invasions faces challenges that need to be overcome, such as the lack of public knowledge about the impact of invasive alien species, the popular appeal of charismatic invasive species or those used by humans, and the use of controversial control techniques. However, successful experiences of eradication and control in terrestrial and marine ecosystems have been recorded, some of them involving public engagement in management actions. Recognizing the issue as a cross-cutting public policy and developing ongoing governance experiences are fundamental goals for the management of invasive alien species in Brazil.


Resumo Invasões biológicas são uma das maiores ameaças à biodiversidade e à boa qualidade de vida, ocorrendo a partir da translocação de espécies por ação humana. Existem mais de 500 espécies exóticas invadindo ecossistemas atualmente no Brasil, com destaque para plantas e peixes. Pouco se sabe sobre microrganismos invasores. Apesar de existirem espécies exóticas invasoras em todos os ecossistemas no país, a maior parte dos registros foi feita em hábitats com maior interferência humana, como áreas urbanas, periurbanas, terras cultivadas, represas, reservatórios, portos e canais. Historicamente, as regiões sul e sudeste do Brasil apresentam mais espécies exóticas invasoras, mas nas últimas décadas se tem observado um aumento no número de espécies exóticas invasoras nas regiões centro-oeste e norte. O comércio de plantas e peixes ornamentais, assim como o comércio ilegal de mamíferos e répteis silvestres como animais de estimação são algumas das principais vias de introdução e disseminação de espécies exóticas invasoras no Brasil. Sistemas de criação e cultivo que possibilitam o escape para áreas naturais são uma relevante via de introdução em ecossistemas de águas continentais, enquanto introduções não intencionais a partir de navegação e de infraestrutura são de extrema preocupação em ecossistemas marinhos. Os impactos negativos de espécies exóticas invasoras sobre a biota incluem principalmente alterações na estrutura de comunidades e diminuição local da riqueza de espécies nativas, mediados por predação, competição e modificações ecossistêmicas. A maior parte dos impactos negativos registrados ocorreram para espécies introduzidas intencionalmente, como peixes e plantas, mas introduções não intencionais têm levado a impactos na boa qualidade de vida, com custos associados e impactos sobre a saúde humana. A gestão de invasões biológicas esbarra em desafios a serem superados, tais como a falta de conhecimento do público sobre o impacto de espécies exóticas invasoras, o apelo popular de espécies invasoras carismáticas ou utilizadas por humanos e o emprego de técnicas controversas de controle. Entretanto, experiências bem-sucedidas de erradicação e controle em ecossistemas terrestres e marinhos têm sido registrados, alguns deles envolvendo engajamento público nas ações de manejo. Reconhecer o tema como uma política pública transversal e desenvolver experiências continuadas de governança são metas fundamentais para a gestão e o manejo de espécies exóticas invasoras no Brasil.

3.
Article in English | MEDLINE | ID: mdl-37569037

ABSTRACT

Malaria is a prevalent disease in several tropical and subtropical regions, including Brazil, where it remains a significant public health concern. Even though there have been substantial efforts to decrease the number of cases, the reoccurrence of epidemics in regions that have been free of cases for many years presents a significant challenge. Due to the multifaceted factors that influence the spread of malaria, influencing malaria risk factors were analyzed through regional outbreak cluster analysis and spatio-temporal models in the Brazilian Amazon, incorporating climate, land use/cover interactions, species richness, and number of endemic birds and amphibians. Results showed that high amphibian and bird richness and endemism correlated with a reduction in malaria risk. The presence of forest had a risk-increasing effect, but it depended on its juxtaposition with anthropic land uses. Biodiversity and landscape composition, rather than forest formation presence alone, modulated malaria risk in the period. Areas with low endemic species diversity and high human activity, predominantly anthropogenic landscapes, posed high malaria risk. This study underscores the importance of considering the broader ecological context in malaria control efforts.


Subject(s)
Biodiversity , Malaria , Animals , Humans , Brazil/epidemiology , Forests , Malaria/epidemiology , Birds , Ecosystem
4.
Curr Biol ; 33(16): 3495-3504.e4, 2023 08 21.
Article in English | MEDLINE | ID: mdl-37473761

ABSTRACT

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%-18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost.


Subject(s)
Biodiversity , Forests , Humans , Rainforest , Brazil , Tropical Climate , Conservation of Natural Resources , Ecosystem
5.
Zookeys ; 1174: 35-74, 2023.
Article in English | MEDLINE | ID: mdl-38313333

ABSTRACT

Sixteen new species of microcaddisflies (Trichoptera, Hydroptilidae) from Panama are herein described and illustrated. The majority of these were collected during surveys of Panama's national parks and protected areas during 2017 and 2018, employing both UV and Malaise traps. The new species include: Alisotrichiaeisbergaesp. nov., Angrisanoiabokotasp. nov., Brediniaparaespinosasp. nov., Cerasmatrichiagarfiozasp. nov., Cerasmatrichiaveraguasensissp. nov., Costatrichiacaloveborasp. nov., Metrichiacaloveborasp. nov., Metrichiacascadasp. nov., Metrichiachiriquiensissp. nov., Metrichiaescobillasp. nov., Metrichialeahaesp. nov., Metrichiatatianaesp. nov., Ochrotrichiaconejorejasp. nov., Ochrotrichiaparaflagellatasp. nov., Oxyethirapehrssonaesp. nov., and Zumatrichiaculebrasp. nov. In total, 506 Trichoptera species are now recorded for the Republic of Panama, distributed among 15 families and 56 genera.

6.
Front Res Metr Anal ; 7: 898818, 2022.
Article in English | MEDLINE | ID: mdl-35910707

ABSTRACT

Central America science production on biodiversity topics is important in planning future adaptive and conservation policies in a climate-related risk region that is considered a biodiversity hotspot but has the lowest Human Development Index of Latin America. Science production on biodiversity is related to geo-referenced species occurrence records, but the accessibility depends on political frameworks and science funding. This paper aims at foregrounding how the democratic shifts throughout the years have had an impact on science production on biodiversity research, and species records. For this exploration we developed a novel systematic scientometric analysis of science production on biodiversity topics, we used Bio-Dem (open-source software of biodiversity records and socio-political variables) and briefly analyzed the history-from 1980 to 2020-of Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama. With a data set of 16,304 documents, our analysis shows the significant discrepancies between the low science production of Central American Northern countries (Guatemala, El Salvador, Honduras, and Nicaragua), the prolific production from the Southern (Costa Rica and Panama), and how this relates to democratic stability. Scientific production tends to be more abundant when democratic conditions are guaranteed. The state capture phenomenon and colonial-rooted interactions worldwide have an effect on the conditions under which science is being produced in Central America. Democracy, science production, funding, and conservation are core elements that go hand in hand, and that need to be nourished in a region that struggles with the protection of life and extractive activities in a climate change scenario.

7.
Biota Neotrop. (Online, Ed. ingl.) ; 22(3): e20221336, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1403618

ABSTRACT

Abstract In the present study a specific and comprehensive analysis of the arboreal flora of Ilha Grande, located in the municipality of Angra dos Reis, on the southern coast of the state of Rio de Janeiro, Brazil, is presented. Unpublished data and contributions from studies already carried out at the site that investigated issues related to the composition and richness of tree species, the degree of threat, endemism and the history of occupation and/or changes in land use were gathered and analyzed. This study is part of the PPBio Mata Atlântica - Programa de Pesquisa em Biodiversidade (Biodiversity Research Program) which, through phytosociological inventories of the tree component, has been contributing, since 2010, to the increase in the floristic knowledge of Ilha Grande. The inventory identified 509 tree species, belonging to 220 genera and 74 families. Of these, 34 species were categorized as threatened, two of which are critically endangered, 18 are endangered and 14 are vulnerable. 53 exotic tree species were indicated. The results presented here reinforce the importance of these inventories as indispensable tools for the construction of strategies and actions for conservation, restoration and management of diversity in the context of the Atlantic Forest.


Resumo No presente estudo é apresentada uma análise específica e abrangente da flora arbórea da Ilha Grande, localizada no município de Angra dos Reis, litoral Sul do estado do Rio de Janeiro, Brasil. Informações inéditas e contribuições dos estudos já conduzidos no local que investigaram questões relacionadas à composição e riqueza de espécies arbóreas, grau de ameaça, endemismos e histórico de ocupação e/ou alterações de uso da terra foram reunidas e analisadas. Este estudo é parte do Programa de Pesquisa em Biodiversidade (PPBio) Mata Atlântica que, através de inventários fitossociológicos do componente arbóreo, vêm contribuindo, desde 2010, para o incremento do conhecimento florístico da Ilha Grande. O inventário identificou 509 espécies arbóreas, pertencentes a 220 gêneros e 74 famílias. Dessas, 34 espécies foram categorizadas como ameaçadas de extinção, sendo duas criticamente em perigo, 18 em perigo e 14 vulneráveis. Foram indicadas 53 espécies arbóreas exóticas. Os resultados aqui apresentados reforçam a importância desses inventários como ferramentas indispensáveis para a construção de estratégias e ações de conservação, restauração e manejo da diversidade no contexto da Mata Atlântica.

8.
Biota Neotrop. (Online, Ed. ingl.) ; 22(spe): e20231470, 2022. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1420329

ABSTRACT

Abstract Since its creation in 1960, the São Paulo State Research Foundation (FAPESP) has been supporting biodiversity research; however, in the early years, this large umbrella was still divided into botany, ecology, and zoology. This support became more effective by the establishment of the Research Program on Characterization, Conservation, and Sustainable Use of the Biodiversity of São Paulo State, better known as the BIOTA/FAPESP Program, in 1999. The program adopted the definition of biodiversity of the Convention on Biological Diversity and focused on 4 priorities: a) advancing scientific knowledge about Brazilian biodiversity; b) training high-level personnel (master's degrees, PhDs and postdocs) to carry out biodiversity research; c) transferring the advancement of knowledge to improve public policies on biodiversity conservation and restoration; and d) transferring private sector knowledge to economically explore the potential of Brazilian biodiversity by using it sustainably. This paper summarizes the major achievements of the BIOTA/FAPESP Program, now entering its third decade of existence.


Resumo: Desde sua criação em 1960, a Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) vem apoiando a pesquisa em biodiversidade, embora nos primeiros anos este grande guarda-chuva tenha sido dividido em botânica, ecologia e zoologia. Este apoio tornou-se mais efetivo com a criação em 1999 do Programa de Pesquisa em Caracterização, Conservação e Uso Sustentável da Biodiversidade do Estado de São Paulo, mais conhecido como Programa BIOTA/FAPESP. O Programa adotou a definição de biodiversidade da Convenção sobre Diversidade Biológica, e focalizou em 4 prioridades: a) o avanço do conhecimento científico sobre a biodiversidade brasileira, b) o treinamento pessoal de alto nível (mestrado, doutorado e pós-doutorado) para a realização de pesquisas em biodiversidade, c) a transferência do avanço do conhecimento para melhorar as políticas públicas de conservação e restauração da biodiversidade, d) a transferência para o setor privado do conhecimento para explorar economicamente o potencial da biodiversidade brasileira, utilizando-o de forma sustentável. Este documento resume as principais realizações do Programa BIOTA/FAPESP, atualmente denominado Programa de Pesquisa em Caracterização, Conservação, Restauração e Uso Sustentável da Biodiversidade, agora entrando em sua terceira década de existência.

9.
Zookeys ; 1044: 783-796, 2021.
Article in English | MEDLINE | ID: mdl-34183891

ABSTRACT

A new species of Callistege Hübner, [1823] (Lepidoptera, Erebidae, Erebinae, Euclidiini) is described from Cuatrociénegas Protected Area and Biosphere Preserve in Coahuila, Mexico. Adult male and female moths are illustrated, including genitalia. Callistege clara Homziak & Metzler, sp. nov. is one of 27 new species of insects discovered during an inventory survey of arthropods of White Sands National Monument, USA, and Cuatrociénegas Protected Area (Mexico), funded by the U.S. National Park Service. The Cuatrociénegas Basin is known for high endemism of aquatic and wetland biota within the Chihuahuan Desert. Callistege clara Homziak & Metzler, sp. nov. was found in a wetland environment.

10.
Rev. Asoc. Colomb. Cien. Biol. (En línea) ; 2(33): 83-93, 2021. graf, tab, ilus, mapas
Article in Spanish | LILACS, COLNAL | ID: biblio-1379303

ABSTRACT

Los quelonios ampliamente utilizados como fuente de alimento y para comercialización, en todo el departamento de Sucre. Esto atenta contra el buen estado de la diversidad biológica y los ecosistemas donde habitan. Se determinaron las especies que son utilizadas para dichas actividades. Para conocer la magnitud de esta situación y contribuir en lo posible a plantear medidas de mitigación, se aprovecharon las capturas realizadas por pescadores de varias localidades en la sub región La Mojana, en el departamento de Sucre y se realizaron encuestas informales a esos trabajadores. Las hicoteas fueron capturadas en periodo baja lluviosidad, cuando se encuentran ovopositando y no se tuvo en cuenta la talla para su captura. Todos los individuos fueron medidos y pesados y se les hizo palpación para determinar la presencia o ausencia de huevos oviductales. Fueron capturados más de 200 individuos de ambos sexos, pertenecientes a cuatro especies de quelonios. Una de las especies se encuentra en peligro crítico (CR) Chelonoidis carbonaria, Rhinoclemmys melanosterna está reportada como casi amenazada (NT) y Kinosternon scorpioides es vulnerable (VU). La más abundante y utilizada fue Trachemys callirostris. Las técnicas utilizadas por los pescadores no son las más adecuadas, porque no solo dañan a los animales sino al ecosistema, adicionalmente, la situación económica. La situación económica de los pescadores es muy grave y no tienen otras fuentes de empleo. Se recomienda realizar actividades de educación ambiental, capacitarlos sobre pesca racional y apoyar la creación de zoocriaderos, lo que mitigaría su extracción del ambiente natural y crearía otras fuentes de trabajo.


Freshwater chelonians are widely used as a source of food and for commercialization, throughout the department of Sucre. This threatens the good state of biological diversity and the ecosystems where they live. The species that are used for these activities were determined. In order to know the magnitude of this situation and contribute as much as possible to propose mitigation measures, the catches made by fishermen from various localities in the La Mojana sub-region, in the department of Sucre, were used and informal surveys were conducted with these workers. The hicoteas were captured in the dry period, when they are laying eggs and the size was not taken into account for their capture. All individuals were measured and weighed and palpated to determine the presence or absence of oviductal eggs. More than 200 individuals of both sexes were captured, belonging to four species of chelonians. One of the species is critically endangered (CR) Chelonoidis carbonaria, Rhinoclemmys melanosterna is reported as near threatened (NT) and Kinosternon scorpioides is vulnerable (VU). The most abundant and used was Trachemys callirostris. The techniques used by fishermen are not the most appropriate because they harm the animals and the ecosystem. The economic situation of the fishermen is very serious and they have no other sources of employment. It is recommended to carry out environmental education activities, train them on rational fishing and support the creation of breeding farms, which would mitigate their extraction from the natural environment and create other sources of work.


Subject(s)
Animals , Turtles , Biodiversity , Hunting
11.
Hum Immunol ; 79(9): 639-650, 2018 Sep.
Article in English | MEDLINE | ID: mdl-29908213

ABSTRACT

We studied HLA class I (HLA-A, -B) and class II (HLA-DRB1, -DQB1) alleles by PCR-SSP based typing in a total of 1101 Ecuadorian individuals from three regions of the country, the Coastal region, the Andean region, and the Amazonian region, to obtain information regarding allelic and haplotypic frequencies and their linkage disequilibrium. We find that the most frequent HLA haplotypes with significant linkage disequilibrium in those populations are HLA-A*24∼B*35∼DRB1*04∼DQB1*03:02, A*02∼B*35∼DRB1*04∼DQB1*03:02, A*24∼B*35∼DRB1*14∼DQB1*03:01, A*02∼B*35∼DRB1*14∼DQB1*03:01 and A*02∼B*40:02∼DRB1*04∼DQB1*03:02. The only non-Native American haplotype with frequency >1% shared by all groups was A*29∼B*44∼DRB1*07∼DQB1*02. Admixture estimates obtained by a maximum likelihood method using HLA-B as genetic estimator revealed that the main genetic components for this sample of mixed-ancestry Ecuadorians are Native American (ranging from 52.86% to 63.83%) and European (from 28.95% to 46.54%), while an African genetic component was only apparent in the Coastal region (18.19%). Our findings provide a starting point for the study of population immunogenetics of Ecuadorian populations.


Subject(s)
Genotype , HLA-A Antigens/genetics , HLA-B Antigens/genetics , HLA-DQ beta-Chains/genetics , HLA-DRB1 Chains/genetics , Population Groups , Alleles , Ecuador , Gene Frequency , Genetics, Population , Haplotypes , Histocompatibility Testing , Humans , Linkage Disequilibrium , Polymorphism, Genetic
12.
Ambio ; 47(4): 427-440, 2018 May.
Article in English | MEDLINE | ID: mdl-29306998

ABSTRACT

The Convention on Biological Diversity proposed the Aichi Biodiversity Targets to improve conservation policies and to balance economic development, social welfare, and the maintenance of biodiversity/ecosystem services. Brazil is a signatory of the Aichi Biodiversity Targets and is the most diverse country in terms of freshwater fish, but its national policies have supported the development of unsustainable commercial and ornamental aquaculture, which has led to serious disturbances to inland ecosystems and natural resources. We analyzed the development of Brazilian aquaculture to show how current aquaculture expansion conflicts with all 20 Aichi Targets. This case suggests that Brazil and many other megadiverse developing countries will not meet international conservation targets, stressing the need for new strategies, such as the environmental management system, to improve biodiversity conservation.


Subject(s)
Aquaculture , Biodiversity , Conservation of Natural Resources , Animals , Brazil , Ecosystem , Fresh Water
13.
Acta sci., Biol. sci ; Acta sci., Biol. sci;4020180000. graf, tab
Article in English | LILACS, VETINDEX | ID: biblio-1460790

ABSTRACT

The parasitic biodiversity of the Loricaria prolixa, an endemic fish from the Paraná and Pratabasins was studied and analyzed the parasitic’s communities dynamics and their ecological relations withthis host. Samples were collected in the Batalha River and 39 specimens were analyzed from 2014 to 2016.All fishes were parasitized. The component community was composed by twelve species with 8694metazoan found on the surface, gills, eyes, brain, intestine and blood of the hosts. Demidospermusspirophallus, Diplostomidae gen. sp., Rhabdochona kidderi and Oligobdella sp. showed higher values for theparasitism's ecological descriptors, and were centrals and dominants species. The infracommunities werecharacterized by specific richness smaller in relation to diversity, and both superior to equitability(H’ = 0.94; J = 0.6; d = 0.83). There was a significant positive correlation between the host standardlength and the parasite abundance of D. spirophallus, Diplostomidae gen. sp. and Oligobdella sp., whileProcamallanus (Spirocamallanus) inopinatus presented a significant negative correlation. This is the firstcontribution concerning the parasite biodiversity of L. prolixa. Clinostomum detruncatum, Diplostomidae gen.sp., Austrodiplostomum compactum, R. kidderi, P. (S.) inopinatus, P. (S.) rebecae, Cucullanus pinnai pinnai,Oligobdella sp. and Trypanosoma sp. were first recorded in this host.


Foi realizado o estudo da biodiversidade parasitária da Loricaria prolixa, um peixe endêmico dasbacias do Paraná e Prata, e analisada a dinâmica das comunidades parasitárias e suas relações ecológicas comeste hospedeiro. Os peixes foram coletados no rio Batalha e 39 indivíduos foram analisados de 2014 a 2016.Todos os peixes estavam parasitados. A comunidade componente foi composta por doze espécies com 8694metazoários encontrados na superfície, brânquias, olhos, cérebro, intestino e sangue dos hospedeiros.Demidospermus spirophallus, Diplostomidae gen. sp., Rhabdochona kidderi e Oligobdella sp. apresentarammaiores valores para os descritores ecológicos e foram consideradas centrais e dominantes. Asinfracomunidades se caracterizaram com uma riqueza específica menor em relação à diversidade, e ambassuperiores à equitatividade (H’ = 0.94; J = 0.6; d = 0.83). Houve correlação significativa positiva entre ocomprimento padrão dos hospedeiros e a abundância de D. spirophallus, Diplostomidae gen. sp. e Oligobdellasp., enquanto que Procamallanus (Spirocamallanus) inopinatus apresentou correlação significativa negativa. Estaé a primeira análise ecológica sobre a biodiversidade parasitária de L. prolixa. Clinostomum detruncatum,Diplostomidae gen. sp., Austrodiplostomum compactum, R. kidderi, P. (S.) inopinatus, P. (S.) rebecae, Cucullanuspinnai pinnai, Oligobdella sp. e Trypanosoma sp. foram registrados pela primeira vez neste hospedeiro.


Subject(s)
Animals , Biodiversity , Ecology , Catfishes/parasitology
14.
Acta biol. colomb ; 23(2): 151-162, 2018. tab, graf
Article in English | LILACS | ID: biblio-949324

ABSTRACT

ABSTRACT We present an estimation of the potential species richness of frogs, and diurnal butterflies distributed in the departments of Norte de Santander and Santander, Colombia, and analyze the implications for conservation of such high Andean species. From June 2012 to May 2016, we sampled across the Almorzadero, Santurbán and Tamá biogeographical units to gather presence data of 7 anuran species and 29 butterflies species from the superfamily Papilionoidea. We modeled the potential distribution of each species, converted every model to binary, and the sum up of unique species per cell allowed to estimate the model of potential richness, generating the total number of species for every 1 km2 cell. Every model was validated against field data, vegetation cover, and altitude. Our results suggest the existence of species' concentration zones, specifically in the places of convergence between biogeographical units; it was evident the high levels of data deficiency in some places. Finally, it was clear the importance of these zones as a continuum of biogeographic conditions to maintain the biological diversity.


RESUMEN Presentamos una estimación de la riqueza potencial y las implicaciones para la conservación de especies altoandinas de anuros y de mariposas diurnas, distribuidas en los departamentos de Norte de Santander y Santander. Durante junio de 2012 y mayo de 2016 se realizaron muestreos de campo en las unidades biogeográficas de Almorzadero, Santurbán y Tamá, para registrar los datos de presencia de siete especies de anfibios del orden Anura y 29 de mariposas de la superfamilia Papilionoidea. Realizamos modelamientos de la distribución potencial de cada especie, convertimos cada modelo en binario, y la suma de especies únicas por celda permitió estimar el modelo de riqueza potencial, obteniendo el número total de especies por cada celda de 1 km2; a su vez, los modelos fueron superpuestos sobre información de campo, cobertura vegetal y altitudinal. Nuestros resultados sugieren que existen zonas concretas de concentración de especies en las zonas de convergencia entre las unidades biogeográficas, así como zonas con vacíos de información. Resaltamos la importancia de estas zonas como un continuo de condiciones biogeográficas para mantener la diversidad.

15.
Acta Sci. Biol. Sci. ; 402018. graf, tab
Article in English | VETINDEX | ID: vti-733690

ABSTRACT

The parasitic biodiversity of the Loricaria prolixa, an endemic fish from the Paraná and Pratabasins was studied and analyzed the parasitics communities dynamics and their ecological relations withthis host. Samples were collected in the Batalha River and 39 specimens were analyzed from 2014 to 2016.All fishes were parasitized. The component community was composed by twelve species with 8694metazoan found on the surface, gills, eyes, brain, intestine and blood of the hosts. Demidospermusspirophallus, Diplostomidae gen. sp., Rhabdochona kidderi and Oligobdella sp. showed higher values for theparasitism's ecological descriptors, and were centrals and dominants species. The infracommunities werecharacterized by specific richness smaller in relation to diversity, and both superior to equitability(H = 0.94; J = 0.6; d = 0.83). There was a significant positive correlation between the host standardlength and the parasite abundance of D. spirophallus, Diplostomidae gen. sp. and Oligobdella sp., whileProcamallanus (Spirocamallanus) inopinatus presented a significant negative correlation. This is the firstcontribution concerning the parasite biodiversity of L. prolixa. Clinostomum detruncatum, Diplostomidae gen.sp., Austrodiplostomum compactum, R. kidderi, P. (S.) inopinatus, P. (S.) rebecae, Cucullanus pinnai pinnai,Oligobdella sp. and Trypanosoma sp. were first recorded in this host.(AU)


Foi realizado o estudo da biodiversidade parasitária da Loricaria prolixa, um peixe endêmico dasbacias do Paraná e Prata, e analisada a dinâmica das comunidades parasitárias e suas relações ecológicas comeste hospedeiro. Os peixes foram coletados no rio Batalha e 39 indivíduos foram analisados de 2014 a 2016.Todos os peixes estavam parasitados. A comunidade componente foi composta por doze espécies com 8694metazoários encontrados na superfície, brânquias, olhos, cérebro, intestino e sangue dos hospedeiros.Demidospermus spirophallus, Diplostomidae gen. sp., Rhabdochona kidderi e Oligobdella sp. apresentarammaiores valores para os descritores ecológicos e foram consideradas centrais e dominantes. Asinfracomunidades se caracterizaram com uma riqueza específica menor em relação à diversidade, e ambassuperiores à equitatividade (H = 0.94; J = 0.6; d = 0.83). Houve correlação significativa positiva entre ocomprimento padrão dos hospedeiros e a abundância de D. spirophallus, Diplostomidae gen. sp. e Oligobdellasp., enquanto que Procamallanus (Spirocamallanus) inopinatus apresentou correlação significativa negativa. Estaé a primeira análise ecológica sobre a biodiversidade parasitária de L. prolixa. Clinostomum detruncatum,Diplostomidae gen. sp., Austrodiplostomum compactum, R. kidderi, P. (S.) inopinatus, P. (S.) rebecae, Cucullanuspinnai pinnai, Oligobdella sp. e Trypanosoma sp. foram registrados pela primeira vez neste hospedeiro.(AU)


Subject(s)
Animals , Biodiversity , Ecology , Catfishes/parasitology
16.
Zookeys ; (655): 141-156, 2017.
Article in English | MEDLINE | ID: mdl-28331399

ABSTRACT

The U.S. National Park Service initiated a 10-year study of the Lepidoptera at White Sands National Monument, Otero County, New Mexico in late 2006. Givira delindaesp. n., discovered in 2007 during the first year of study, is described here. The male and female adult moths and genitalia are illustrated. The name is dedicated to Delinda Mix, mother of Steve Mix. The species of Cossidae recorded from the Monument during the study are listed.

17.
Curr Biol ; 26(21): 2929-2934, 2016 11 07.
Article in English | MEDLINE | ID: mdl-27618267

ABSTRACT

Humans have altered terrestrial ecosystems for millennia [1], yet wilderness areas still remain as vital refugia where natural ecological and evolutionary processes operate with minimal human disturbance [2-4], underpinning key regional- and planetary-scale functions [5, 6]. Despite the myriad values of wilderness areas-as critical strongholds for endangered biodiversity [7], for carbon storage and sequestration [8], for buffering and regulating local climates [9], and for supporting many of the world's most politically and economically marginalized communities [10]-they are almost entirely ignored in multilateral environmental agreements. This is because they are assumed to be relatively free from threatening processes and therefore are not a priority for conservation efforts [11, 12]. Here we challenge this assertion using new comparable maps of global wilderness following methods established in the original "last of the wild" analysis [13] to examine the change in extent since the early 1990s. We demonstrate alarming losses comprising one-tenth (3.3 million km2) of global wilderness areas over the last two decades, particularly in the Amazon (30%) and central Africa (14%). We assess increases in the protection of wilderness over the same time frame and show that these efforts are failing to keep pace with the rate of wilderness loss, which is nearly double the rate of protection. Our findings underscore an immediate need for international policies to recognize the vital values of wilderness and the unprecedented threats they face and to underscore urgent large-scale, multifaceted actions needed to maintain them.


Subject(s)
Conservation of Natural Resources , Ecosystem , Environmental Policy/legislation & jurisprudence , Wilderness , Africa, Central , Conservation of Natural Resources/legislation & jurisprudence , South America
18.
Cienc. tecnol. salud ; 3(1): 65-79, ene.-jun. 2016. ilus
Article in Spanish | LILACS | ID: biblio-868826

ABSTRACT

La urbanización es un fenómeno global cuyo pronóstico prevé que para el 2050 hasta el 70% de la poblaciónmundial vivirá en ciudades. Esto tendrá un impacto sobre la diversidad biológica, lo que podría generar pérdidade especies y de los servicios ecosistémicos relacionados. Las administraciones municipales deben contemplareste componente para la planificación y desempeño ambiental de sus ciudades y áreas urbanas. El Convenio sobrela Diversidad Biológica (CDB) ha planteado una nueva herramienta para estimar la diversidad biológica enciudades: el índice de diversidad biológica urbana. En este proyecto se evaluó este índice para la ciudad de LaAntigua Guatemala. De un máximo de 72 puntos, el resultado para la ciudad de La Antigua Guatemala fue de33 puntos. Se midieron 18 indicadores de tres componentes: (1) biodiversidad urbana con un desempeño alto,(2) servicios ecosistémicos con un desempeño bajo y (3) gobernanza y manejo de la diversidad biológica con undesempeño medio. Los registros para la línea base de la biodiversidad son: 99 especies de aves, 148 especies deplantas vasculares, 46 especies de mariposas y 11 especies de murciélagos. Se recomienda a las autoridades dela ciudad de La Antigua Guatemala y actores involucrados, elaborar de urgencia la estrategia local de diversidadbiológica y su plan de acción.


The global process of urbanization predicts a 70% of all world citizens living in cities by the year 2050. Theresult will be a high impact on biological diversity like species loss and degradation of ecosystem services.Local governments have to introduce this component in the environmental planning and performance of their cities.The UN Convention on Biological Diversity (CBD) has proposed a new tool to evaluate the biological diversityin cities: The City Biodiversity Index (CBI). In this project the CBI for the city of La Antigua Guatemala wasassessed. The city scores 33 points out of 72. The indicators measured were related to three main components: (1)biological diversity with high value, (2) ecosystem services with low value and (3) governance and managementof biological diversity with medium value. Biodiversity base line records were: 99 bird species, 148 plant species,46 butterfly species and 11 bat species. The project recommends the urgent elaboration of Antigua Guatemala’sCity Local Biodiversity Strategy and Action Plan (LBSAP).


Subject(s)
Animals , Ecology , City Planning , Urban Area
19.
Acta sci., Biol. sci ; 38(2): 229-240, abr.-jun. 2016.
Article in English | LILACS | ID: biblio-2480

ABSTRACT

The pictorial key contributes to taxonomic analysis, as it lists the species found in a given environment, and points out the morphological characteristics that differs one specific taxon from the others. Arcellidae Ehrenberg, 1830 is one of the testate amoebae families with highest representativity in terms of richness and abundance, including three genera, that Arcella shows greater dispersion in different types of aquatic biotopes. The zooplankton community in the Paranoá Lake has been extensively studied over the decades. However, there are no studies on testate amoebae in this environment. The study aimed to develop a pictorial key to help in the identification of Arcella in the Paranoá Lake. Samples were taken with plankton net at 13 sites in the littoral zone of the lake. The elaboration of the key was based on morphological characteristics of the shell and pseudostoma of the individuals. There were identified 23 taxa, 16 species and seven subspecies. Two species with low incidence in Brazil were recorded (Arcella catinus and Arcella rota). The species richness was higher than the records published to date in Brazil, thus demonstrating the relevance of the data and the applicability of this pictorial key in other studies both in the Paranoá Lake, as in other regions.


A chave pictórica apresenta -se como uma ferramenta que contribui para análise taxonômica, pois além de apresentar uma listagem de espécies encontradas em determinado ambiente, pontua os caracteres morfológicos que difere um táxon específico dos demais. Arcellidae Ehrenberg, 1830 é considerada uma das famílias de amebas testáceas com maior representatividade em termos de riqueza e abundância, abrangendo três gêneros, dos quais, Arcella apresenta maior distribuição em diferentes tipos de biótopos aquáticos. O lago Paranoá tem sido foco de diversos trabalhos sobre a comunidade zooplanctônica. Entretanto, não há publicações com as amebas testáceas naquele ambiente. O presente estudo objetivou elaborar uma chave pictórica para auxiliar na identificação de Arcella para o lago Paranoá. Foram coletadas amostras em 13 pontos da região litorânea do lago, com rede de plâncton. A construção da chave baseou-se em características morfológicas da carapaça e do pseudostoma dos organismos. Foram identificados 23 táxons, 16 espécies e sete subespécies. Observou-se o registro de espécies com pouca incidência no Brasil (Arcella catinus e Arcella rota). A riqueza foi superior aos registros publicados até o momento para o Brasil, evidenciando, assim, a relevância dos dados encontrados e a aplicabilidade desta chave pictórica em outros estudos tanto no lago Paranoá, como em outras regiões.


Subject(s)
Plankton , Zooplankton , Biodiversity
20.
Acta Sci. Biol. Sci. ; 38(2): 229-240, abr. -jun. 2016. tab, ilus, graf
Article in English | VETINDEX | ID: vti-15390

ABSTRACT

The pictorial key contributes to taxonomic analysis, as it lists the species found in a given environment, and points out the morphological characteristics that differs one specific taxon from the others. Arcellidae Ehrenberg, 1830 is one of the testate amoebae families with highest representativity in terms of richness and abundance, including three genera, that Arcella shows greater dispersion in different types of aquatic biotopes. The zooplankton community in the Paranoá Lake has been extensively studied over the decades. However, there are no studies on testate amoebae in this environment. The study aimed to develop a pictorial key to help in the identification of Arcella in the Paranoá Lake. Samples were taken with plankton net at 13 sites in the littoral zone of the lake. The elaboration of the key was based on morphological characteristics of the shell and pseudostoma of the individuals. There were identified 23 taxa, 16 species and seven subspecies. Two species with low incidence in Brazil were recorded (Arcella catinus and Arcella rota). The species richness was higher than the records published to date in Brazil, thus demonstrating the relevance of the data and the applicability of this pictorial key in other studies both in the Paranoá Lake, as in other regions.(AU)


A chave pictórica apresenta-se como uma ferramenta que contribui para análise taxonômica, pois além de apresentar uma listagem de espécies encontradas em determinado ambiente, pontua os caracteres morfológicos que difere um táxon específico dos demais. Arcellidae Ehrenberg, 1830 é considerada uma das famílias de amebas testáceas com maior representatividade em termos de riqueza e abundância, abrangendo três gêneros, dos quais, Arcella apresenta maior distribuição em diferentes tipos de biótopos aquáticos. O lago Paranoá tem sido foco de diversos trabalhos sobre a comunidade zooplanctônica. Entretanto, não há publicações com as amebas testáceas naquele ambiente. O presente estudo objetivou elaborar uma chave pictórica para auxiliar na identificação de Arcella para o lago Paranoá. Foram coletadas amostras em 13 pontos da região litorânea do lago, com rede de plâncton. A construção da chave baseou-se em características morfológicas da carapaça e do pseudostoma dos organismos. Foram identificados 23 táxons, 16 espécies e sete subespécies. Observou-se o registro de espécies com pouca incidência no Brasil (Arcella catinus e Arcella rota). A riqueza foi superior aos registros publicados até o momento para o Brasil, evidenciando, assim, a relevância dos dados encontrados e a aplicabilidade desta chave pictórica em outros estudos tanto no lago Paranoá, como em outras regiões.(AU)


Subject(s)
Amoebozoa/classification , Amoebozoa/growth & development , Checklist , Biodiversity
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