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1.
Chinese Journal of Radiological Health ; (6): 15-20, 2023.
Article in Chinese | WPRIM | ID: wpr-965365

ABSTRACT

@#<b>Objective</b> To monitor the cumulative terrestrial γ radiation dose around Shidaowan nuclear power plant, Shandong, China before operation, to analyze the dose levels and influencing factors, and to estimate the annual effective dose to local residents. <b>Methods</b> Fifty-six monitoring sites were selected within 30 km around the nuclear power plant. The environmental γ radiation dose was measured by the thermoluminescence dosimeter monitoring method. The γ radiation dose levels were investigated for 369 days in four monitoring periods (January 16 to April 14, April 15 to July 20, July 21 to October 21, 2021, and October 22, 2021 to January 20, 2022 for periods I to IV, respectively). Relations between γ radiation and monitoring time, altitude, distance from the nuclear power plant were analyzed, and the annual effective dose of terrestrial γ radiation to residents was estimated to reflect the background terrestrial γ radiation level in the area. <b>Results</b> The average values of terrestrial γ radiation dose rate in the four monitoring periods in the area were (76.196 ± 3.366), (81.773 ± 6.144), (93.554 ± 7.449), and (97.604 ± 9.396) nGy/h, respectively, and the terrestrial γ radiation dose rate in the whole year was (87.282 ± 6.589) nGy/h. The effective dose to residents was 0.428 mSv. The terrestrial γ radiation level was high from July 2021 to January 2022. There was no significant difference in the γ radiation dose rate at the monitoring sites with different distance from the nuclear power plant. No impact upon the terrestrial γ radiation dose by the altitude was observed in this study. <b>Conclusion</b> The terrestrial γ radiation level around Shidaowan nuclear power plant in 2021 was at the background level.

2.
Braz. j. med. biol. res ; 56: e12902, 2023. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1520465

ABSTRACT

There are several studies in the literature showing that male and female rats explore novel environments and exhibit different exploration patterns when submitted to different apparatuses. In general, female rats spend more time moving and exploring the apparatuses than males do. A previous study showed that male woodlice (Armadillidium vulgare) explore novel environments in a very similar way to male rats (Rattus norvegicus) when tested in apparatuses analogous to the open-field test and light/dark box. Since that study was conducted only with male rats and woodlice, and since they exhibited very similar patterns of behavior, the present experiment aimed at investigating whether male and female woodlice explore novel environments with different behavioral patterns. Female and male woodlice were tested in the open-field and in the dry/moist box. Results obtained in the open-field test showed that both males and females remained longer in the corners than along the walls and avoided staying in the center. However, females remained longer along the walls and less in the corners. In the dry/moist box, there were no significant differences between the sexes: both females and males remained significantly longer in the moist compartment.

3.
Biota Neotrop. (Online, Ed. ingl.) ; 23(4): e20231534, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1533962

ABSTRACT

Abstract Protected areas play a fundamental role in the preservation of species, environmental education, and ecosystem services maintenance. Most of the world population live in urban areas, which highlight the importance of preserved areas in urban centers. However, many urban protected areas in Brazil lack species surveys, which limits biodiversity conservation and implementation of management plans. In this study, we surveyed the species of medium and large mammals of Chico Mendes Municipal Natural Park (MNP) and Canal das Taxas corridor through camera traps, thus providing the first comprehensive in situ survey of terrestrial mammals for the area. We also verified whether there was mammalian fauna exchange between the Chico Mendes and Marapendi MNPs through the vegetation corridor formed by the Canal das Taxas. Between November 2020 and July 2021, with a sampling effort of 1,334 trap-days, we recorded five native and five exotic species in the studied areas, including one Vulnerable species in the Municipality and State of Rio de Janeiro (Cuniculus paca). We also confirmed that Canal das Taxas works as a wildlife corridor for native species. Finally, we highlight that species checklists based on secondary information for the region are of limited usefulness and recommend in situ surveys even in small, urban protected areas of Rio de Janeiro city.


Resumo As áreas protegidas têm papel fundamental na preservação das espécies, na educação ambiental e na manutenção dos serviços ecossistêmicos. A maior parte da população mundial vive em áreas urbanas, o que evidencia a importância das áreas preservadas nos centros urbanos. No entanto, muitas áreas protegidas urbanas no Brasil carecem de levantamentos de espécies, o que limita a conservação da biodiversidade e a implementação de planos de manejo. Neste estudo, inventariamos as espécies de mamíferos de médio e grande porte do Parque Natural Municipal Chico Mendes e do corredor do Canal das Taxas por meio de armadilhas fotográficas, fornecendo assim o primeiro levantamento in situ abrangente de mamíferos terrestres para a área. Também verificamos se houve intercâmbio de fauna de mamíferos entre os parques Chico Mendes e Marapendi através do Canal das Taxas. Entre novembro de 2020 e julho de 2021, com um esforço amostral de 1.334 armadilhas-dia, registramos cinco espécies nativas e cinco espécies exóticas nas áreas de estudo, incluindo uma espécie Vulnerável no município e estado do Rio de Janeiro (Cuniculus paca). Confirmamos que o Canal das Taxas funciona como um corredor de fauna para espécies nativas. Por fim, ressaltamos que listas de espécies baseadas em informações secundárias para a região são de utilidade limitada e recomendamos levantamentos in situ, mesmo em pequenas Unidades de Conservação urbanas da cidade do Rio de Janeiro.

4.
Biota Neotrop. (Online, Ed. ingl.) ; 23(4): e20231545, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1533963

ABSTRACT

Abstract The present work describes 11 new species of the genus Trichorhina from Brazilian caves in the states of Bahia, Mato Grosso do Sul, Minas Gerais, Pará, and São Paulo. Moreover, the distribution of T. tomentosa has been expanded to include the states of Mato Grosso and Minas Gerais. Additionally, a distribution map and a key for all Brazilian species of Trichorhina, including epigean ones, are provided.


Resumo O presente trabalho descreve 11 novas espécies do gênero Trichorhina de cavernas brasileiras nos estados da Bahia, Mato Grosso do Sul, Minas Gerais, Pará e São Paulo. Além disso, a distribuição de T. tomentosa foi ampliada para incluir os estados de Mato Grosso e Minas Gerais. Adicionalmente, são fornecidos um mapa de distribuição e uma chave para todas as espécies brasileiras de Trichorhina, incluindo as epígeas.

5.
Biota Neotrop. (Online, Ed. ingl.) ; 22(spe): e20221426, 2022. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1420331

ABSTRACT

Abstract Scientific collections constitute a valuable source for contributions to scientific research and the training of human resources in systematics, but also other areas of biological knowledge. In this contribution, we intend to discuss these advancements in collections and the role played by FAPESP in sponsoring them, as well as a general overview of the zoological collections in São Paulo state. We also aim to stress the importance of zoological collections and the need for continuous logistic and financial support from institutions and research agencies to maintain and develop these unique repositories of biodiversity. From 1980 to the present, FAPESP supported 118 research projects focused on several areas of zoology that are directly or indirectly associated with collections. There is a constant growth in the number of projects, and the financial support provided by FAPESP through the Biota Program was paramount for the advancement of our knowledge of biodiversity in Brazil. Parallel to the scientific advances, but not less important, this support allowed curators to increase the number of specimens, and to organize, maintain and digitize them in these valuable and irreplaceable collections. Regarding the lack of new taxonomists, it is essential that FAPESP and universities in São Paulo encourage the formation of new academics in zoological groups where specialists are rare. Considering the investment provided by FAPESP, it is quite important that the institutions that benefited from these resources took greater responsibility to safeguard these collections, and they should consider including resources on their budgets to obtain safety certificates, ensuring their permanence for many generations to come. Zoological collections are a heritage of humanity and are essential not only for the improvement of our knowledge of biodiversity but also with direct applications, among other services provided by these biological resources. It is important that research and teaching institutions in São Paulo that house specimens under their care start to value more this important patrimony and this heritage, as these collections represent the most valuable testimony of our impressive biodiversity, records of our past, and windows to our future, essential to our academic, scientific, cultural and social sovereignty.


Resumo As coleções científicas constituem uma fonte valiosa para contribuições à pesquisa científica e para a formação de recursos humanos em sistemática, mas também em outras áreas do conhecimento biológico. Nesta contribuição, pretendemos discutir esses avanços nas coleções e o papel desempenhado pela FAPESP no seu patrocínio, bem como um panorama geral das coleções zoológicas do estado de São Paulo. Também pretendemos enfatizar a importância das coleções zoológicas e a necessidade de apoio logístico e financeiro contínuo de instituições e agências de pesquisa para manter e desenvolver esses repositórios únicos de biodiversidade. Ao longo de 1980 até os dias atuais, a FAPESP apoiou 118 projetos de pesquisa focados em diversas áreas da zoologia, direta ou indiretamente associados a coleções. Há um crescimento constante no número de projetos, e o apoio financeiro da FAPESP por meio do Programa Biota foi fundamental para o avanço do nosso conhecimento sobre a biodiversidade no Brasil. Paralelamente aos avanços científicos, mas não menos importante, este apoio permitiu aos curadores aumentar o número de exemplares, e organizá-los, mantê-los e digitalizá-los nestas valiosas e insubstituíveis coleções. Em relação à falta de novos taxonomistas, é fundamental que a FAPESP e as universidades paulistas estimulem a formação de novos acadêmicos em grupos zoológicos onde os especialistas são raros. Considerando o investimento realizado pela FAPESP, é de suma importância que as instituições beneficiadas com esses recursos tenham maior responsabilidade na salvaguarda desses acervos, devendo considerar a inclusão de recursos em seus orçamentos para obtenção de certificados de segurança, garantindo sua permanência por muitas gerações. As coleções zoológicas são patrimônio da humanidade, e são essenciais não apenas para o aprimoramento do nosso conhecimento sobre a biodiversidade, mas também com aplicações diretas, entre outros serviços prestados por esses recursos biológicos. É importante que as instituições de pesquisa e ensino paulistas que abrigam exemplares sob seus cuidados passem a valorizar mais esse importante patrimônio e essa herança, pois essas coleções representam o testemunho mais valioso de nossa impressionante biodiversidade, registros do nosso passado e janelas para o nosso futuro, essenciais à nossa soberania acadêmica, científica, cultural e social.

6.
Rev. bras. parasitol. vet ; 30(1): e025020, 2021. tab, graf
Article in English | LILACS | ID: biblio-1156216

ABSTRACT

Abstract Gurltia paralysans is the causal agent of gurltiosis in domestic cats in South America. Although the life cycle of G. paralysans is unknown, it is thought that gastropods could act as intermediate hosts (IHs), as is the case for several nematodes in the Angiostrongylidae family. The aim of this study was to search for G. paralysans larvae in terrestrial gastropods and determine their role in the life cycle of this nematode species. Terrestrial gastropod samples (n=835) were collected in Punucapa, Valdivia, southern Chile, where cases of gurltiosis had been reported before. The samples included species from the families Arionidae, Limacidae, Helicidae and Milacidae. All gastropods were subjected to enzymatic digestion to isolate G. paralysans larvae. Ten percent of the gastropod samples were analyzed using seminested PCR targeting the 28S rRNA gene, while 2.6% were analyzed by histopathological examination. The results indicated the absence of G. paralysans when using any of the three methods. In conclusion, further studies are needed to evaluate specific species of aquatic or native gastropods acting as possible IHs (in this geographic location).


Resumo Gurltia paralysans é o agente etiológico da gurltiose em gatos domésticos na América do Sul. Embora o ciclo biologico de G. paralysans seja desconhecido, provavelmente é indireto com gastrópodes atuando como hospedeiros intermediários (HIs), como no caso de vários nematoides da família Angiostrongylidae. O objetivo deste estudo foi investigar a presença de larvas de G. paralysans em gastrópodes terrestres para avaliar seu papel no ciclo de vida do parasito. Amostras de gastrópodes terrestres (n = 835) foram coletadas em Punucapa, Valdivia, sul do Chile, onde casos de gurltiose foram relatados anteriormente. As amostras incluíram espécies das famílias Arionidae, Limacidae, Helicidae e Milacidae. Todos os gastrópodes foram submetidos à digestão enzimática para isolar as larvas de G. paralysans. 10% das amostras foram analisadas, utilizando-se seminested PCR para o gen 28S RNAr de G. paralysans, enquanto 2,6% foram analisados ​​por exame histopatológico. Os resultados indicaram ausência de G. paralysans em todos os três métodos. Os dados permitem concluir que são necessários mais estudos para avaliar espécies específicas de gastrópodes aquáticos ou nativos, que atuam como possíveis hospedeiros intermediários nessa localização geográfica.


Subject(s)
Animals , Cats , Cat Diseases/parasitology , Cat Diseases/transmission , Strongylida Infections/transmission , Strongylida Infections/veterinary , Gastropoda/parasitology , Metastrongyloidea/physiology , Chile , Polymerase Chain Reaction/veterinary , Host Specificity , Life Cycle Stages
7.
Biosci. j. (Online) ; 36(3): 976-991, 01-05-2020. tab, graf
Article in English | LILACS | ID: biblio-1147185

ABSTRACT

The objective of this study was to measure the impact on part of soil fauna of application of non-stabilized (fresh) manure from post-weaning pigs fed diets, formulated with or without the use of dual-purpose wheat (15% inclusion), and with or without the use of antimicrobial growth-promoting additives (100 mg kg-1 doxycycline + 50 mg kg-1 colistin + 250 mg kg-1 Zn oxide). Two species of edaphic organisms were evaluated, the springtails Folsomia candida and the earthworms Eisenia andrei, using ecotoxicological avoidance behavior tests. The treatments were swine manure from: RR: Reference Ration; WR: Wheat Reference; RA: Reference Ration + Antimicrobial Additives; WA: Wheat Reference + Antimicrobial Additives. The doses of waste used for treatments were as follows: 0 (control), 5, 10, 20, 30, 40, 65 and 100 m³ ha-1 for the springtails, and 0 (control), 5, 10, 20, 30, 40 and 65 m³ ha-1 for the earthworms, applied in the Oxisol. The experimental design was completely randomized with four replicates. The use of non-stabilized swine manure did not affect the avoidance behavior of F. candida at any dose, regardless of the use of antimicrobial additives or wheat. For E. andrei, there was avoidance behavior at all treatments and doses used. These avoidance behaviors were related to the sensitivity of each species of soil organism. The avoidance behavior for earthworms was related to the doses of non-stabilized swine manure in soil and not to the various diets and/or the use of growth-promoting additives


O estudo foi realizado com objetivo de mensurar o impacto sobre parte da fauna do solo de aplicações de dejetos sem estabilização (frescos), provenientes de suínos na fase de creche arraçoados com diferentes dietas, formuladas com ou sem o uso do trigo de duplo propósito (15% de inclusão), e com ou sem o uso de aditivos antimicrobianos promotores de crescimento (100 mg kg-1 de doxiciclina + 50 mg kg-1de colistina + 250 mg kg-1 de óxido de Zn). Foram avaliadas duas espécies de organismos edáficos, colêmbolos Folsomia candida e minhocas Eisenia andrei, com o uso de ensaios ecotoxicológicos de comportamento de fuga. Os tratamentos foram dejetos de suínos provenientes de: RR: Ração Referência; WR: Trigo Referência; RA: Ração Referência + Aditivos Antimicrobianos; WA: Trigo Referência + Aditivos Antimicrobianos. As doses de dejetos utilizadas para os tratamentos foram: 0 (controle), 5, 10, 20, 30, 40, 65 e 100 m³ ha-1 para os colêmbolos, e 0 (controle), 5, 10, 20, 30, 40 e 65 m³ ha-1 para as minhocas, aplicadas em Latossolo Vermelho distrófico. O delineamento experimental foi inteiramente casualizado com quatro réplicas. A utilização de dejetos de suínos não estabilizados não afetou a fuga de F. candida em nenhuma das doses, independente do uso ou não de aditivos antimicrobianos ou de trigo. Já para E. andrei o comportamento foi inverso e houve fuga em todos os tratamentos e doses utilizados. Os comportamentos de fuga foram relacionados à sensibilidade de cada espécie de organismo edáfico. O comportamento de fuga para minhocas foi relacionado com as doses dos dejetos de suínos não estabilizados no solo e não às várias dietas e/ou ao uso dos aditivos promotores de crescimento


Subject(s)
Swine , Ecotoxicology
8.
Ciênc. rural (Online) ; 50(6): 20180961, 2020. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1133256

ABSTRACT

ABSTRACT: The process of identifying a contaminated area involves a preliminary assessment consisting of chemical analysis and comparison with guideline values. In Brazil, these values are included in the CONAMA Resolution no. 420/2009, based on chemical analysis and phytotoxicity. The objective of this research was to evaluate the ecotoxicity of copper in two natural soils in the state of Rio de Janeiro, a Haplic Planosol (sandy) and a Red-Yellow Argisol (medium texture), to verify if the values established by the legislation offer protection to the soil fauna. Lethality and reproduction tests were performed with Eisenia andrei worms and Folsomia candida springtails. Results indicated copper values in Planosol as LC50 435 mg kg 1 and EC50 29 mg kg 1 for E. Andrei and LC10 137 mg kg 1 and EC50 117 mg kg 1 for F. candida. In Argisol, these results were LC50 690 mg kg 1 and EC50 61 mg kg 1 for E. andrei, and LC10 42 mg kg 1 and EC50 138 mg kg 1 for F. candida. Values reported are lower than the research value (200 mg kg-1) established by the CONAMA resolution 420/09, indicating that concentrations lower than the limit values may affect these organisms, depending on the type of soil. Worms were more sensitive than springtails to copper contamination, and sandy soil was more susceptible to ecotoxicity due to copper contamination, probably due to the greater bioavailability of the metal. Results of such ecotoxicity tests should be considered in the development of soil guideline values.


RESUMO: O processo de identificação de uma área contaminada envolve uma avaliação preliminar que consiste em análise química e comparação com valores orientadores. No Brasil, esses valores constam na Resolução CONAMA no 420/2009, baseados em análises químicas e fitotoxicidade. O objetivo deste trabalho foi avaliar a ecotoxicidade do cobre em dois solos naturais do Estado do Rio de Janeiro, um Planossolo Háplico (arenoso) e um Argissolo Vermelho-Amarelo (textura média), para verificar se os valores estabelecidos pela legislação oferecem proteção à fauna do solo. Foram realizados ensaios de letalidade e de reprodução com minhocas da espécie Eisenia andrei e com colêmbolos da espécie Folsomia candida. Os resultados indicaram no Planossolo valores de cobre para E. andrei de CL50 435 mg kg-1 e CE50 29 mg kg-1 e para F. candida CL10 137 mg kg-1 e EC50 117 mg kg-1. No Argissolo esse resultado foi para E. andrei CL50 690 mg kg-1 e CE50 61 mg kg-1, e para F. candida CL10 42 mg kg-1 e CE50 138 mg kg-1. Os valores encontrados são menores que o valor de investigação (200 mg kg-1) estabelecidos pela resolução 420/09 do CONAMA, indicando que concentrações menores do que os valores-limite podem afetar esses organismos, a depender do tipo de solo. As minhocas mostraram-se mais sensíveis que os colêmbolos à contaminação por cobre, e o solo arenoso mostrou-se mais suscetível a apresentar ecotoxicidade diante de uma contaminação por cobre, devida, provavelmente, à maior biodisponibilidade do metal. Os ensaios de ecotoxicidade devem ser considerados no desenvolvimento de valores orientadores para solos.

9.
Braz. arch. biol. technol ; 63: e20190769, 2020. tab, graf
Article in English | LILACS | ID: biblio-1132194

ABSTRACT

Abstract This article aims to monitor the development of Orchis purpurea Huds., salep orchids, of different sizes over a period of two years, and to investigate the relationship between the parameters studied. In the first step, the measurements taken at the time of planting and harvesting of tubers divided into eight different groups according to their size were subjected to variance and Duncan's test. In the second step, the relationship between the parameters was investigated by ignoring seedling groups. The relationship between the two variables was determined by correlation analysis. The significance of the relationships between planting and harvest data sets, and variable contributions were determined by canonical correlation analysis. Finally, leaf area prediction modeling was performed by applying multiple regression analysis. In variance analysis all parameters were significant. The canonical correlation between the first pair of canonical variables was 0.988 (p<0.01). The data obtained from the tubers made the greatest contribution to the explanatory power of the canonical variables. The leaf area model was formulized as LA (mm2) = -1237.0204 + 57.7912 × LW + 16.6211 × LL where LA is leaf area, LW is leaf width, LL is leaf length and a, b, and c are coefficients.


Subject(s)
Orchidaceae/anatomy & histology , Orchidaceae/growth & development , Multivariate Analysis , Regression Analysis , Plant Leaves/anatomy & histology
10.
Braz. arch. biol. technol ; 63: e20190768, 2020. tab, graf
Article in English | LILACS | ID: biblio-1132275

ABSTRACT

Abstract The orchids that produced tuber are known as salep orchids and have been collected from nature for centuries as a medicinal and aromatic plant. These orchids are endangered species because of their limited vegetative and generative production possibilities. Salep orchids, seed germination has been achieved with in-vitro studies, but no source has been found regarding the development of germinated seeds over the years. In this study, Dactylorhiza euxina (Nevski) Czerep. was used as research material. Seeds that were determined to germinate in nature were observed to develop in their own environment for five years and some morphological characteristics (plant height, number of leaves, leaf length, leaf width, total weight, tuber width, and tuber weight) were determined at the end of each vegetation year. Plants that start to develop with seed germination produce one leaf and a tuber of 0.115 g in the first year. When the tubers obtained from the first year were planted again, the plants was obtained 2-3 leaves and they were formed 0.465 grams of tubers. In the third year plants bloom for the first time. The period until flowering in the plant was called maturity period and Dactylorhiza euxina (Nevski) Czerep. was found to have a 3-year maturity period. Plants produced tuber 0.850 g in the third year, 1.585 g in the fourth year and 2.522 g in the fifth year. According to the mathematical modeling, the relationship between year (Y) and fresh tuber weight (FTW) was found Y = 1.22 + (1.61 × FTW) and there was a significant relationship among year, fresh tuber weight, and total biomass (TBM). This equation Y = 1.05 + (0.76 × FTW) + (0.14 × TBM) shows us the mathematical relations of year, fresh tuber weight, and total biomass. The mathematical relations among to fresh tuber weight, total biomass, and plant height (PH) was produced Y = 1.74 - (0.11 × FTW) + (0.57 × TBM) - (0.09 × PH). R2 values were found 0.95-0.99. All R2 values and standard errors were found to be significant at the p < 0.01 level.


Subject(s)
Seeds/growth & development , Germination/physiology , Orchidaceae/growth & development , Seeds/physiology , Time Factors , Models, Biological
11.
Article | IMSEAR | ID: sea-203796

ABSTRACT

Some of the important work on taxonomy on aquatic and terrestrial beetles pertaining tothe present survey are done mainly by sharp (1890),Regimbert (1903), d’Orchymont (1925,1928)etc.These are predaceous in nature and overall 2 genera and 3 species concerning the super familyHydrophiloidea (Coleoptera : Hydrophlidae) tribe - Hydrophilinae were collected in the Kumaon ,Garhwal and Agra regions

12.
Article | IMSEAR | ID: sea-209837

ABSTRACT

Mycorrhizal association is an integral part of terrestrial ecosystems. The present work was focused to examinearbuscular mycorrhiza (AM), dark septate endophyte (DSE) fungal colonization, and the composition of AMfungi from two home gardens of Tripura in Northeast India. The results reveal eight plants commonly occurringin two sites belonging to seven families. Of the eight plants, dual colonization of AM and DSE fungi wasobserved in seven plants from two sites. A total of 18 AM fungal species were recovered from both the sites.The study reveals a robust composition of AM fungi in the home garden ecosystem. AM fungi isolated fromthese ecosystems confirm their occurrence and these fungi may be beneficial in improving the cultivationpractices in the home garden systems of the region.

13.
Rev. biol. trop ; 67(4)sept. 2019.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1507565

ABSTRACT

Las cámaras trampa constituyen una herramienta de gran utilidad para el estudio de vertebrados terrestres. Con el objetivo de evaluar la utilidad del fototrampeo para el estudio de la avifauna, se analizaron los registros obtenidos, entre julio 2015 y julio 2016, por cámaras trampa instaladas en 12 puntos con aguadas artificiales de la Estancia Montania, departamento de Boquerón, Paraguay. Se determinó la riqueza, composición y tasa de captura registrada en bosques xerofíticos y pasturas exóticas. Se comparó la riqueza y composición de aves detectada mediante cámaras trampa con la obtenida a través de listas Mackinnon. Mediante fototrampeo, fueron registradas 74 especies, pertenecientes a 30 familias y 16 órdenes. El bosque xerofítico y la pastura exótica poseen un 52.7 % de similitud en cuanto a la composición de las especies. Las especies registradas con mayor frecuencia fueron: Leptotila verreauxi (16.14 %), Ortalis canicollis (14.28 %) y Furnarius cristatus (11.39 %). Las cámaras trampa resultaron efectivas para el registro del 33 % de las especies identificadas a través de listas Mackinnon, y adicionaron dos especies. Por ello, resultan apropiadas para complementar métodos basados en la observación directa, particularmente para el registro de especies cinegéticas del ecosistema chaqueño pertenecientes a los órdenes Tinamiformes y Columbiformes.


Camera trap as a sampling method for Paraguayan Dry Chaco birds: a comparison with auditory and visual methods. Camera trap techniques are widely used for the study of mammals, but also enable investigation of other groups, such as birds. In order to evaluate the usefulness of camera trapping for the study of avifauna, we analyzed the records obtained from 12 camera traps installed between July 2015 and July 2016, near artificial water sources in Estancia Montania, Boquerón Department, Paraguay. Four of these sites were associated with xerophytic forests and eight with exotic pastures. The richness, composition and capture rate recorded in both ecosystems were determined. We compared the richness and composition of birds detected by camera traps with those obtained through auditory and visual methods. Through camera trapping, 74 species of birds were recorded, belonging to 30 families and 16 orders. The xerophytic forest and the exotic pasture have a 52.7 % similarity in species composition. With regard to capture rates, the most frequently recorded species were: Leptotila verreauxi (16.14 %), Ortalis canicollis (14.28 %) and Furnarius cristatus (11.39 %). The camera traps were effective in detecting 33% of the species identified in the area based on direct and auditory observation sampling techniques, and added two species not detected by direct methods. For this reason, camera trapping is appropriate to complement methods based on direct observation, particularly for monitoring hunted species of the Chaco ecosystem belonging to Tinamiform and Columbiform species. Due to the non-invasive nature of the technique, it constitutes an efficient method for addressing ethological studies of terrestrial species.

14.
Article | IMSEAR | ID: sea-203792

ABSTRACT

Abstract: Taxonomy of the genus Omicrogiton and Psalistrus from Kumaon & Garhwal regionsis described we have discovered O. insularis (D. Orchymont 1919) and P. championi (Champion1925) for the first time in Uttrakhand.

15.
Rev. peru. biol. (Impr.) ; 26(3)ago. 2019.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1508847

ABSTRACT

La mastofauna del Parque Nacional Tingo María (PNTM) es conocida principalmente por entrevistas a pobladores locales. Este artículo presenta una lista de mamíferos medianos y grandes en base a evaluaciones con cámaras trampa y su verificación con entrevistas. Las evaluaciones se realizaron entre diciembre del 2014 y noviembre del 2018, con un esfuerzo de 2970 trampas cámara/día, consiguiéndose 1640 registros independientes. Se registró 19 especies silvestres, cuatro de las cuales son nuevos registros para el PNTM (la zarigüeyita acuática Chironectes minimus, el margay Leopardus wiedii, la tigrina Leopardus tigrinus y el osito cangrejero Procyon cancrivorus), tres son nuevos para las yungas peruanas (L. wiedii, el ronsoco Hydrochoerus hydrochaeris y la nutria Lontra longicaudis) y dos (H. hydrochaeris y L. wiedii) tienen el récord de altitud en el Perú. Se elaboró patrones de actividad horaria para las nueve especies con más de 10 registros. Ocho de ellos coinciden con lo publicado anteriormente, mientras que el patrón conseguido para el machetero Dynomis branicki es el primero elaborado en condiciones de silvestría. Tanto la presencia de varias especies de predadores como la normalidad de los patrones de actividad encontrados sugieren un buen estado de conservación del bosque en el PNTM. En conclusión, el muestreo con cámaras trampapermitió la obtención de una lista confiable y bastante completa de los mamíferos medianos y grandes de hábitos terrestres del PNTM, además de datos sobre su distribución y ecología.


The mammal fauna of the Parque Nacional Tingo María (PNTM) mainly is known for local people interviews. In this work, using camera traps and its verification by interviews to local people we report medium and large mammals list of the PNTM. Evaluations were realized between December 2014 and November 2018. Sampling effort was of 2970 camera traps/day, with 1640 independent records. Nineteen wild species were recorded, four of which were new reports to the PNTM (the water opossum Chironectes minimus, the margay Leopardus wiedii, the Northern tiger cat Leopardus tigrinus and the crab-eating raccoon Procyon cancrivorus), three were new reports for the Peruvian yungas (L. wiedii, the capybara Hydrochoerus hydrochaeris and the Neotropical otter Lontra longicaudis) and two (H. hydrochaeris and L. wiedii) have been registered as its higher altitude record in Peru. Activity patterns were elaborated for the nine species with more than 10 records. Eight of them are coincided with the previously published. Activity pattern of pacarana (Dynomis branicki) is the first one elaborated in wild conditions. The presence of several predator species and normal activity patterns, would be suggest a good state of forest conservation in the PNTM. In conclusion, the sampling using camera traps allow to obtain a reliable and fairly complete list of the medium and large terrestrial mammals of the PNTM, as well as data on their distribution and ecology.

16.
Article | IMSEAR | ID: sea-203810

ABSTRACT

In this study the aquatic Coleoptera species collected from various places of UttarPradesh and Uttrakhand states. Province in 1990 were evaluated. Over all two genera and 2species concerning the super family Hydrophiloidea (Coleoptera: sphaeridinae andHydraeninae) were detected in the area

17.
Article | IMSEAR | ID: sea-188019

ABSTRACT

In era of sequencing revolution, scientists seek for knowledge about the ever-expanding field of technology, Next Generation Sequence (NGS) to be applied in their research due to its high reliability and rate of discovery. What is NGS? To obtain a detailed understanding about NGS, it is required to look back the history of sequencing and how the NGS stepped into life science. This review paper gives an overview of NGS projects in wild terrestrial vertebrate including applications such as whole genome sequencing and metagenomics.

18.
Braz. j. biol ; 78(4): 697-705, Nov. 2018. tab, graf
Article in English | LILACS | ID: biblio-951600

ABSTRACT

Abstract Between July 2014 and April 2015, we conducted weekly inventories of the circadian activity patterns of mammals in Passo Novo locality, municipality of Alegrete, southern Brazil. The vegetation is comprised by a grassy-woody steppe (grassland). We used two camera traps alternately located on one of four 1 km transects, each separated by 1 km. We classified the activity pattern of species by the percentage of photographic records taken in each daily period. We identify Cuniculus paca individuals by differences in the patterns of flank spots. We then estimate the density 1) considering the area of riparian forest present in the sampling area, and 2) through capture/recapture analysis. Cuniculus paca, Conepatus chinga and Hydrochoerus hydrochaeris were nocturnal, Cerdocyon thous had a crepuscular/nocturnal pattern, while Mazama gouazoubira was cathemeral. The patterns of circadian activity observed for medium and large mammals in this Pampa region (southern grasslands) may reflect not only evolutionary, biological and ecological affects, but also human impacts not assessed in this study. We identified ten individuals of C. paca through skin spot patterns during the study period, which were recorded in different transects and months. The minimum population density of C. paca was 3.5 individuals per km2 (resident animals only) and the total density estimates varied from 7.1 to 11.8 individuals per km2, when considering all individuals recorded or the result of the capture/recapture analysis, respectively.


Resumo De julho de 2014 a abril de 2015, realizamos levantamentos semanais para estudar padrões de atividade circadiana da mastofauna na localidade de Passo Novo, Alegrete, sul do Brasil. A vegetação é compreendida por savana estépica (campo). Utilizamos duas armadilhas fotográficas distribuídas alternadamente ao longo de quatro transectos, com extensão de 1 km e distantes cerca de 1 km entre si. Nós classificamos o padrão de atividade das espécies através da percentagem de fotos registradas em cada período diário. Nós identificamos indivíduos de Cuniculus paca através dos diferentes padrões de manchas nos flancos dos animais. Nós então estimamos a densidade 1) considerando a área de floresta ripária presente na área amostrada, e 2) através da análise de captura/recaptura. As espécies Cuniculus paca, Conepatus chinga e Hydrochoerus hydrochaeris foram classificadas como noturnas, Cerdocyon thous apresentou um padrão crepuscular/noturno, enquanto Mazama gouazoubira foi classificada como catemeral. O padrão de atividade circadiana observado para os mamíferos de médio e grande porte nessa região do Pampa (campos sulinos) pode refletir não só aspectos evolutivos, biológicos e ecológicos, mas também impactos humanos não avaliados nesse estudo. Através do padrão de manchas da pelagem de C. paca nós identificamos dez indivíduos durante o período de estudo, que foram registrados em diferentes transectos e meses. A densidade populacional mínima de C. paca foi de 3,5 ind/km2 (apenas indivíduos residentes) e a densidade total variou de 7,1 a 11,8 ind/km2, quando consideramos todos os indivíduos registrados ou com base em análises de captura e recaptura, respectivamente.


Subject(s)
Animals , Circadian Rhythm/physiology , Mammals/physiology , Brazil , Forests , Population Density , Ecology , Biological Evolution
19.
Biota Neotrop. (Online, Ed. ingl.) ; 18(2): e20170444, 2018. tab, graf
Article in English | LILACS | ID: biblio-951174

ABSTRACT

Abstract: Cloud forest ecosystems contain unique flora and fauna characterized by high levels of richness and endemism. However, this ecosystem is one of the most threatened because of land-use changes stemming from anthropogenic activities. Therefore, biological inventories are necessary to adequately assess the effects of land-use changes on species now and in the future. In this study, we conducted an inventory of plants and terrestrial vertebrates (amphibians, reptiles, birds, and mammals) in three fragments of cloud forest in southwestern Mexico. Field work was carried out for 15 days per biological group during distinct time periods (2005-2008). Conventional methods of species capture and observation were employed to record species. Recorded species were then categorized based on their endemism and risk category. A total of 67 species of plants, 17 species of amphibians, 25 species of reptiles, 93 species of birds, and 46 species of mammals were recorded. The species accumulation curves for most taxa, except for birds and mammals, showed an asymptotic trend. A total of 56 species endemic to Mexico and four quasi-endemic species were recorded. Plants, amphibians, and reptiles presented the greatest number of species exclusive to Mexico (13 species). Six species of herpetofauna endemic to Guerrero were recorded. According to Mexican laws, 24 of the encountered species are under special protection, while 16 are categorized as threatened and seven as endangered. Reptiles and birds presented the greatest number of at-risk species (14 species). Bird and mammal richness in this study is high in comparison to that recorded in the cloud forests of the entire Mexican state of Guerrero (157 and 75 species, respectively). This data highlights the importance of cloud forests in the study area for local and regional biodiversity. Effective conservation strategies should be prioritized in cloud forests, as this ecosystem is poorly represented in natural protected areas.


Resumen: Los bosques mesófilos de montaña son ecosistemas que contienen flora y fauna única, y son caracterizados por sus altos niveles de riqueza y endemismo. Este ecosistema es uno de los más amenazados debido a los cambios en el uso del suelo por actividades antropogénicas. Por tanto, los inventarios bióticos en este ecosistema son necesarios para evaluar adecuadamente los cambios en el uso del suelo sobre las especies en la actualidad y en el futuro. En este estudio se desarrollaron inventarios de plantas y vertebrados terrestres (anfibios, reptiles, aves y mamíferos) en tres fragmentos de bosque mesófilo de montaña en el suroeste de México. El trabajo de campo se realizó durante 15 días por cada grupo biológico durante distintos períodos de tiempo (2005 al 2008). Los registros de las especies se obtuvieron mediante métodos convencionales de captura y observación. Se categorizaron a las especies por su endemismo y categoría de riesgo. Se registró un total de 67 especies de plantas, 17 especies de anfibios, 25 especies de reptiles, 93 especies de aves y 46 especies de mamíferos. Las curvas de acumulación mostraron un comportamiento asintótico para la mayoría de los taxa, excepto aves y mamíferos. Se obtuvo un total de 56 especies endémicas a México y cuatro cuasiendémicas. Los grupos de plantas, anfibios y reptiles presentaron el mayor número de especies exclusivas al país (13 especies), y se obtuvo un total de seis especies de herpetofauna endémicas a Guerrero. De acuerdo con las leyes mexicanas, se registró un total 24 especies en protección especial, 16 amenazadas y siete en peligro de extinción, de los cuales los grupos de los reptiles y aves presentaron el mayor número de especies en categoría de riesgo (14 especies). La riqueza de especies de aves y mamíferos en este estudio representa un número importante comparado con el total de especies registradas en los bosques mesófilos del estado de Guerrero (157 y 75 especies, respectivamente). Estos datos resaltan la importancia de los bosques mesófilos de montaña del área de estudio para la biodiversidad local y regional, por lo que deben priorizarse estrategias de conservación efectivas para este ecosistema poco representado en áreas naturales protegidas.

20.
An. acad. bras. ciênc ; 89(3): 1615-1628, July-Sept. 2017. tab, graf
Article in English | LILACS | ID: biblio-886750

ABSTRACT

ABSTRACT The food base in the subterranean environment consists mainly of allochthonous materials. In this environment the resources are distributed generally in a heterogeneous dispersed way and the distribution of resources and their availability determine where the terrestrial invertebrates will reside, which is important for understanding ecological relationships and to establish conservation strategies. Thus, we tested how the complexity of substrates influences the richness and composition of the subterranean terrestrial invertebrates in the Presidente Olegário karst area, southeastern Brazil. We carried out collections in six caves during both dry and wet seasons, using combined collection methods. We observed different distributions in relation to the substrate, because the environmental heterogeneity increases the amount of available niches for the fauna. Some taxa showed a preference for specific substrates, probably related to the availability of food resources and humidity and to body size restriction, emphasizing the niche differentiation between species. Anthropogenic impacts can cause irreversible alterations in the subterranean fauna because the subterranean environment is dependent on the surface for input of trophic resources. On-going impacts in the Presidente Olegario karst area, like agriculture, pastures, gas extraction, and hydroelectric projects, are therefore a serious threat to subterranean biodiversity and this region should be prioritized for conservation.


Subject(s)
Animals , Biodiversity , Caves , Invertebrates/classification , Seasons , Brazil , Population Density , Animal Distribution
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