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2.
Philos Trans A Math Phys Eng Sci ; 382(2269): 20230057, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38342213

RESUMO

Improving models of species' distributions is essential for conservation, especially in light of global change. Species distribution models (SDMs) often rely on mean environmental conditions, yet species distributions are also a function of environmental heterogeneity and filtering acting at multiple spatial scales. Geodiversity, which we define as the variation of abiotic features and processes of Earth's entire geosphere (inclusive of climate), has potential to improve SDMs and conservation assessments, as they capture multiple abiotic dimensions of species niches, however they have not been sufficiently tested in SDMs. We tested a range of geodiversity variables computed at varying scales using climate and elevation data. We compared predictive performance of MaxEnt SDMs generated using CHELSA bioclimatic variables to those also including geodiversity variables for 31 mammalian species in Colombia. Results show the spatial grain of geodiversity variables affects SDM performance. Some variables consistently exhibited an increasing or decreasing trend in variable importance with spatial grain, showing slight scale-dependence and indicating that some geodiversity variables are more relevant at particular scales for some species. Incorporating geodiversity variables into SDMs, and doing so at the appropriate spatial scales, enhances the ability to model species-environment relationships, thereby contributing to the conservation and management of biodiversity. This article is part of the Theo Murphy meeting issue 'Geodiversity for science and society'.


Assuntos
Biodiversidade , Mudança Climática , Animais , Clima , Ecossistema , Mamíferos
3.
4.
Genes (Basel) ; 14(3)2023 03 03.
Artigo em Inglês | MEDLINE | ID: mdl-36980915

RESUMO

Genetic analysis of historical museum collections presents an opportunity to clarify the evolutionary history of understudied primate groups, improve taxonomic inferences, and inform conservation efforts. Among the most understudied primate groups, slow and pygmy lorises (genera Nycticebus and Xanthonycticebus) are nocturnal strepsirrhines found in South and Southeast Asia. Previous molecular studies have supported five species, but studies using morphological data suggest the existence of at least nine species. We sequenced four mitochondrial loci, CO1, cytb, d-loop, and ND4, for a total of 3324 aligned characters per sample from 41 historical museum specimens for the most comprehensive geographic coverage to date for these genera. We then combined these sequences with a larger dataset composed of samples collected in Vietnam as well as previously published sequences (total sample size N = 62). We inferred phylogenetic relationships using Bayesian inference and maximum likelihood methods based on data from each locus and on concatenated sequences. We also inferred divergence dates for the most recent common ancestors of major lineages using a BEAST analysis. Consistent with previous studies, we found support for Xanthonycticebus pygmaeus as a basal taxon to the others in the group. We also confirmed the separation between lineages of X. pygmaeus from northern Vietnam/Laos/China and southern Vietnam/Cambodia and included a taxonomic revision recognizing a second taxon of pygmy loris, X. intermedius. Our results found support for multiple reciprocally monophyletic taxa within Borneo and possibly Java. The study will help inform conservation management of these trade-targeted animals as part of a genetic reference database for determining the taxonomic unit and provenance of slow and pygmy lorises confiscated from illegal wildlife trade activities.


Assuntos
Lorisidae , Animais , Filogenia , Lorisidae/anatomia & histologia , Lorisidae/genética , Teorema de Bayes , Sudeste Asiático , Variação Genética/genética
5.
Environ Manage ; 67(4): 731-746, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33475792

RESUMO

Community-based conservation and resource management (CBCRM) programs often incorporate the dual goals of poverty alleviation and conservation. However, robust assessments of CBCRM program outcomes are relatively scarce. This study uses a multidisciplinary, systems approach to assess the ecological and social dimensions of success of an internationally acclaimed CBCRM program. This program, located in one of the largest protected areas in the Peruvian Amazon (Pacaya-Samiria National Reserve), strives for the sustainable harvest and trade of a turtle species (Podocnemis unifilis). We used mixed methods analysis, including interviews and population viability modeling, to understand three elements: how local perceptions of changes in the managed population compare to changes inferred by ecological analyses, the indicators stakeholders use to measure success, and the barriers to long-term program success and social-ecological system sustainability. We find that stakeholders perceive a growth trend in the managed turtle population, but this perception may diverge from our ecological understanding of the system under current management. Population viability analyses with a 1:1 sex ratio suggested population size will decline under two of three management scenarios (different degrees of harvest). Yet this and similar studies are plagued by a lack of species- and site-specific population parameters that could improve understanding of the system. Significant vulnerabilities exist for system sustainability, notably the recent decrease in foreign demand for the traded resource. Identifying a sustainable species-specific harvest rate, developing locally-grounded ecological and social indicators, and focusing on data-driven adaptive management will facilitate the identification of key leverage points for future management interventions.


Assuntos
Conservação dos Recursos Naturais , Tartarugas , Animais , Ecossistema
6.
Burns ; 46(2): 370-376, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31420265

RESUMO

Burn patients frequently require autograft harvesting to facilitate wound healing, often resulting in significant pain. Liposomal bupivacaine is indicated for administration into a surgical site to produce postsurgical analgesia. The objective of this study was to evaluate efficacy, safety, and duration of postoperative analgesia with liposomal bupivacaine for donor site pain in burn patients. This was an observational, case-control study including adult patients with <20% total body surface area (TBSA) burned who received liposomal bupivacaine for postoperative pain management after autograft harvesting from lower extremity donor site(s). Patients from the case group were matched to historical control patients treated with traditional pain management. The primary outcome was the cumulative pain scores on postoperative day one measured by the area under the curve (AUC0-24). Secondary outcomes included AUC0-72, total milligram morphine equivalents (MME), length of stay, and adverse events. Data were collected in 36 patients who received liposomal bupivacaine, with 21 patients eligible for matching to historical controls. Patients included in the intervention and control groups were well-matched at baseline. Patients in the intervention group had a significantly lower median (IQR) AUC0-24 [578 (408,740) vs. 680 (544,803); p = 0.05] and shorter length of stay [4 days (1,9.5) vs. 6 days (318); p = 0.01]. No differences in adverse events related to the administration of liposomal bupivacaine or opioid-related adverse events were observed. Results indicate liposomal bupivacaine is safe and effective in burn patients. The results of this study add to the limited body of literature examining efficacy in this population.


Assuntos
Anestésicos Locais/administração & dosagem , Bupivacaína/administração & dosagem , Queimaduras/cirurgia , Dor Pós-Operatória/prevenção & controle , Coleta de Tecidos e Órgãos/métodos , Sítio Doador de Transplante , Adulto , Analgésicos Opioides/uso terapêutico , Estudos de Casos e Controles , Feminino , Humanos , Tempo de Internação , Lipossomos , Masculino , Pessoa de Meia-Idade , Manejo da Dor , Dor Pós-Operatória/tratamento farmacológico , Estudos Prospectivos , Transplante de Pele , Transplante Autólogo , Resultado do Tratamento
7.
Ecol Evol ; 9(11): 6245-6258, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31236218

RESUMO

The North American red-shouldered hawk, Buteo lineatus, is comprised of two widely allopatric eastern and western populations with an additional well-marked subspecies in the Florida peninsula. The two eastern populations meet in northern Florida, the location of a well-known suture zone in many nonavian organisms. We sequenced the complete mitochondrial ND2 gene and two nuclear introns to investigate its genetic population structure and species status. No mitochondrial haplotypes were shared between the eastern and western populations, and genetic variance among 14 populations was 0.42; almost all of this (0.40) was distributed among the three regions. A clade of haplotypes very common in the Florida peninsula decreased in frequency elsewhere and, when modeled as a hybrid zone, had an estimated width of 1,158 km with a center near Ocala, FL. Ecological niche modeling suggests the western, eastern, and Florida peninsula populations were geographically isolated during the last glacial maximum. We consider these to represent three phylogenetic species. A coalescent analysis incorporating incomplete lineage sorting and gene tree uncertainty also suggested the divergence between the western and eastern populations is consistent with species-level divergence. With the addition of this hawk, four avian species are now known to hybridize along the Gulf Coast of the United States in or near the Northern Florida Suture Zone. The widths of these avian zones vary substantially (176-1,158 km) and appear to reflect magnitude of gene flow, rather than extent of genetic differentiation. None of these birds was suggested as possible exemplars in the original description of the suture zone. Of the six species that were so identified, three have been surveyed to date, but none of those was found to be genetically differentiated.

8.
Ecol Appl ; 28(4): 967-977, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29698558

RESUMO

Under the threat of ongoing and projected climate change, communities in the Pacific Islands face challenges of adapting culture and lifestyle to accommodate a changing landscape. Few models can effectively predict how biocultural livelihoods might be impacted. Here, we examine how environmental and anthropogenic factors influence an ecological niche model (ENM) for the realized niche of cultivated taro (Colocasia esculenta) in Hawaii. We created and tuned two sets of ENMs: one using only environmental variables, and one using both environmental and cultural characteristics of Hawaii. These models were projected under two different Intergovernmental Panel on Climate Change (IPCC) Representative Concentration Pathways (RCPs) for 2070. Models were selected and evaluated using average omission rate and area under the receiver operating characteristic curve (AUC). We compared optimal model predictions by comparing the percentage of taro plots predicted present and measured ENM overlap using Schoener's D statistic. The model including only environmental variables consisted of 19 Worldclim bioclimatic variables, in addition to slope, altitude, distance to perennial streams, soil evaporation, and soil moisture. The optimal model with environmental variables plus anthropogenic features also included a road density variable (which we assumed as a proxy for urbanization) and a variable indicating agricultural lands of importance to the state of Hawaii. The model including anthropogenic features performed better than the environment-only model based on omission rate, AUC, and review of spatial projections. The two models also differed in spatial projections for taro under anticipated future climate change. Our results demonstrate how ENMs including anthropogenic features can predict which areas might be best suited to plant cultivated species in the future, and how these areas could change under various climate projections. These predictions might inform biocultural conservation priorities and initiatives. In addition, we discuss the incongruences that arise when traditional ENM theory is applied to species whose distribution has been significantly impacted by human intervention, particularly at a fine scale relevant to biocultural conservation initiatives.


Assuntos
Colocasia , Ecossistema , Modelos Teóricos , Havaí
9.
Folia Primatol (Basel) ; 89(1): 45-62, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29631261

RESUMO

Wildlife trade can present a major threat to primate populations. In Vietnam, slow lorises (genus Nycticebus) are subject to local, regional and international demand for diverse uses including as medicine, as meat and for pets. Ethnographic approaches explore the nuances of human-primate interactions in complex sociocultural contexts. We combined ethnographic interviews of key informants with information from questionnaires, focus groups and a movie broadcast on Vietnamese television to explore diverse knowledge and values related to slow lorises and their use in trade in Vietnam. We infer prices, uses and networks for expanding targeted regional and international markets as compared to the opportunistic local one. We highlight key findings related to gendered knowledge about slow lorises and more-than-human ontologies of slow lorises as active participants in human-slow loris interactions. We suggest that conservation efforts should pay attention to the clarification of vernacular names, and use names that highlight ecological or behavioural qualities of slow lorises, rather than other names that could be confused with medicinal remedies. Our results confirm the dynamic complexity of trade in Vietnam, highlighting the importance of ethnographic methods to explore diverse knowledge and values for place-based or site-appropriate conservation management of primates and other highly traded taxa.


Assuntos
Comércio , Conservação dos Recursos Naturais , Lorisidae , Animais , Antropologia Cultural , Conhecimento , Vietnã
10.
Community Ment Health J ; 54(6): 717-724, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29127566

RESUMO

Antipsychotic medications carry an established lifetime risk of metabolic syndrome. This retrospective chart review evaluated feasibility of a metabolic monitoring clinical decision support tool (CDST) for weight, lipid, blood glucose, and blood pressure management of 163 clients in an early psychosis outpatient clinic over 2 years. Each parameter had at least 98 (60.1%) clients with a recorded value, the most being documented for weight with 112 (68.7%) clients. CDST adherence ranged from at least 54.3-100% for non-pharmacologic interventions (e.g. clinic counseling, referral to health program or primary care) and at least 33.3-100% for pharmacologic interventions (e.g. metformin). Though no baseline cardiometabolic abnormalities were identified, dyslipidemia and obesity were later found in 37 (22.7%) and 35 (21.5%) clients, respectively. Only 14 (8.6%) clients were prescribed medications for cardiometabolic abnormalities by psychiatrists in the clinic. Increasing focus on physical health is needed to better this population's long-term prognosis.


Assuntos
Antipsicóticos/efeitos adversos , Dislipidemias/induzido quimicamente , Obesidade/induzido quimicamente , Transtornos Psicóticos/tratamento farmacológico , Transtornos Psicóticos/psicologia , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Centros Comunitários de Saúde Mental , Sistemas de Apoio a Decisões Clínicas , Dislipidemias/epidemiologia , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Indiana/epidemiologia , Masculino , Síndrome Metabólica/induzido quimicamente , Pessoa de Meia-Idade , Obesidade/epidemiologia , Transtornos Psicóticos/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Esquizofrenia/epidemiologia , Psicologia do Esquizofrênico , Adulto Jovem
11.
Am J Primatol ; 79(11)2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29035006

RESUMO

Wildlife trade presents a major threat to primate populations, which are in demand from local to international scales for a variety of uses from food and traditional medicine to the exotic pet trade. We argue that an interdisciplinary framework to facilitate integration of socioeconomic, anthropological, and biological data across multiple spatial and temporal scales is essential to guide the study of wildlife trade dynamics and its impacts on primate populations. Here, we present a new way to design research on wildlife trade in primates using a systems thinking framework. We discuss how we constructed our framework, which follows a social-ecological system framework, to design an ongoing study of local, regional, and international slow loris (Nycticebus spp.) trade in Vietnam. We outline the process of iterative variable exploration and selection via this framework to inform study design. Our framework, guided by systems thinking, enables recognition of complexity in study design, from which the results can inform more holistic, site-appropriate, and effective trade management practices. We place our framework in the context of other approaches to studying wildlife trade and discuss options to address foreseeable challenges to implementing this new framework.


Assuntos
Comércio , Conservação dos Recursos Naturais/métodos , Primatas , Análise de Sistemas , Animais , Animais Selvagens , Conservação dos Recursos Naturais/legislação & jurisprudência , Crime , Humanos , Pesquisa Interdisciplinar
12.
Am J Primatol ; 79(11)2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29023874

RESUMO

Wildlife trade is increasingly recognized as an unsustainable threat to primate populations and informing its management is a growing focus and application of primatological research. However, management policies based on ecological research alone cannot address complex socioeconomic or cultural contexts as drivers of wildlife trade. Multidisciplinary research is required to understand trade complexity and identify sustainable management strategies. Here, we define multidisciplinary research as research that combines more than one academic discipline, and highlight how the articles in this issue combine methods and approaches to fill key gaps and offer a more comprehensive understanding of underlying drivers of wildlife trade including consumer demand, enforcement patterns, source population status, and accessibility of targeted species. These articles also focus on how these drivers interact at different scales, how trade patterns relate to ethics, and the potential effectiveness of different policy interventions in reducing wildlife trade. We propose priorities for future research on primate trade including expanding from multidisciplinary to interdisciplinary research questions and approaches co-created by research teams that integrate across different disciplines such as cultural anthropology, ecology, economics, and public policy. We also discuss challenges that limit the integration of information across disciplines to meet these priorities.


Assuntos
Comércio , Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/legislação & jurisprudência , Pesquisa Interdisciplinar , Primatas , Animais , Animais Selvagens , Cultura , Humanos , Fatores Socioeconômicos
14.
PLoS One ; 7(8): e43027, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22905197

RESUMO

Landscape genetic studies offer a fine-scale understanding of how habitat heterogeneity influences population genetic structure. We examined population genetic structure and conducted a landscape genetic analysis for the endangered Central American Squirrel Monkey (Saimiri oerstedii) that lives in the fragmented, human-modified habitats of the Central Pacific region of Costa Rica. We analyzed non-invasively collected fecal samples from 244 individuals from 14 groups for 16 microsatellite markers. We found two geographically separate genetic clusters in the Central Pacific region with evidence of recent gene flow among them. We also found significant differentiation among groups of S. o. citrinellus using pairwise F(ST) comparisons. These groups are in fragments of secondary forest separated by unsuitable "matrix" habitats such as cattle pasture, commercial African oil palm plantations, and human residential areas. We used an individual-based landscape genetic approach to measure spatial patterns of genetic variance while taking into account landscape heterogeneity. We found that large, commercial oil palm plantations represent moderate barriers to gene flow between populations, but cattle pastures, rivers, and residential areas do not. However, the influence of oil palm plantations on genetic variance was diminished when we restricted analyses to within population pairs, suggesting that their effect is scale-dependent and manifests during longer dispersal events among populations. We show that when landscape genetic methods are applied rigorously and at the right scale, they are sensitive enough to track population processes even in species with long, overlapping generations such as primates. Thus landscape genetic approaches are extremely valuable for the conservation management of a diverse array of endangered species in heterogeneous, human-modified habitats. Our results also stress the importance of explicitly considering the heterogeneity of matrix habitats in landscape genetic studies, instead of assuming that all matrix habitats have a uniform effect on population genetic processes.


Assuntos
Saimiri/genética , Animais , Teorema de Bayes , Biodiversidade , Análise por Conglomerados , Costa Rica , Ecossistema , Fezes , Fluxo Gênico , Variação Genética , Genética Populacional , Genótipo , Geografia , Repetições de Microssatélites/genética , Modelos Genéticos , Análise de Sequência de DNA
15.
Am J Primatol ; 73(11): 1093-106, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21948330

RESUMO

Vietnam has the highest number of primate taxa overall (24-27) and the highest number of globally threatened primate taxa (minimum 20) in Mainland Southeast Asia. Conservation management of these species depends in part on resolving taxonomic uncertainties, which remain numerous among the Asian primates. Recent research on genetic, morphological, and acoustic diversity in Vietnam's primates has clarified some of these uncertainties, although a number of significant classification issues still remain. Herein, we summarize and compare the major current taxonomic classifications of Vietnam's primates, discuss recent advances in the context of these taxonomies, and suggest key areas for additional research to best inform conservation efforts in a region crucial to global primate diversity. Among the most important next steps for the conservation of Vietnam's primates is a new consensus list of Asian primates that resolves current differences between major taxonomies, incorporates recent research advances, and recognizes units of diversity at scales below the species-level, whether termed populations, morphs, or subspecies. Priority should be placed on recognizing distinct populations, regardless of the species concept in use, in order to foster the evolutionary processes necessary for primate populations to cope with inevitable environmental changes. The long-term conservation of Vietnam's primates depends not only on an accepted and accurate taxonomy but also on funding for on-the-ground conservation activities, including training, and the continued dedication and leadership of Vietnamese researchers and managers.


Assuntos
Biodiversidade , Conservação dos Recursos Naturais , Primatas/classificação , Animais , Geografia , Vietnã
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