Results 51 to 60 of about 12,889 (145)

Abundância e densidade de jacamins (Psophia spp.) em unidades de conservação na Amazônia brasileira

Biodiversidade Brasileira
Os jacamins (Psophia spp.) são aves terrícolas, endêmicas do bioma amazônico, que vivem em pequenos grupos sociais. São animais visados para caça e sensíveis à alteração de habitat, e quatro espécies do gênero são consideradas ameaçadas de extinção no ...
Marcos de Souza Fialho, Arlindo Gomes Filho, Elildo Alves Ribeiro de Carvalho Junior, Gerson Buss, Marcelo Lima Reis, Mariana Tolentino Bento da Silva   +5 more
doaj   +1 more source

Assessing group size and the demographic composition of a canopy‐dwelling primate, the northern muriqui (Brachyteles hypoxanthus), using arboreal camera trapping and genetic tagging

Remote Sensing in Ecology and Conservation, EarlyView.
We combined arboreal camera trapping and non‐invasive genetic tagging to estimate group size in the critically endangered northern muriqui (Brachyteles hypoxanthus) in Brazil's Atlantic Forest. Both methods provided complementary insights into group size and demographic structure, while differing in their cost‐effectiveness and sampling constraints ...
Mariane C. Kaizer, Naiara G. Sales, Thiago H. G. Alvim, Karen B. Strier, Fabiano R. de Melo, Jean P. Boubli, Robert J. Young, Allan D. McDevitt   +7 more
wiley   +1 more source

New distribution records of Pteronura brasiliensis (Zimmerman, 1780) (Mammalia, Carnivora) in Roraima, northern Brazilian Amazonia [PDF]

Check List, 2016
A survey of the Giant Otter, Pteronura brasiliensis (Zimmerman, 1780), in the state of Roraima, northern Brazilian Amazonia, is presented. We include 52 new records, increasing the total geographic coordinate points for the species in this area by 360 ...
Luciana Pacca, Lara Côrtes, Lívia Rodrigues, Ronaldo Morato   +3 more
doaj   +3 more sources

Belowground effects of ground‐dwelling large herbivores in forest ecosystems

Journal of Animal Ecology, EarlyView.
This study reviews how ground‐dwelling large herbivores affect forest soil and litter globally. Effects are context‐dependent, vary among species and forest types, and remain poorly studied in tropical forests, highlighting critical gaps in understanding nutrient cycling and ecosystem functioning.
Letícia Gonçalves Ribeiro, Mateus Melo‐Dias, Beatriz Maria Paccas Saraiva, Nacho Villar, Mauro Galetti   +4 more
wiley   +1 more source

Risco e resiliência: uma revisão dos atributos funcionais que influenciam a vulnerabilidade ao fogo em mamíferos do Pantanal

Biodiversidade Brasileira
Em 2020, incêndios em vegetação queimaram aproximadamente 40 mil hectares e mataram 17 milhões de vertebrados. Esse evento catastrófico, caracterizado pelo comportamento extremo do fogo e facilitado pela combinação de matéria orgânica acumulada e seca ...
Eugênia Kelly Luciano Batista, Maria Tereza de Arruda Botelho, Renan Lieto Alves Ribeiro, Ricardo Sampaio, Mariella Butti, Luanne Helena Augusto Lima, Christian Niel Berlinck   +6 more
doaj   +1 more source

The Importance of Environmental Heterogeneity in Evaluating the Conservation Status of Two Frog Species in a Changing Amazonian Interfluve

Animal Conservation, EarlyView.
Identifying the most effective criterion to assess the conservation status of vulnerable species in threatened tropical regions is crucial to evaluate recovery plans. We investigated the influence of environmental heterogeneity on the extent of occurrence (EOO), area of occupied habitat (AOH), and density variation of two Amazonian riparian frog ...
Rafael F. Jorge, Pedro Aurélio Costa Lima Pequeno, William E. Magnusson, Albertina Pimentel Lima   +3 more
wiley   +1 more source

Mammal Responses to Habitat Degradation Induced by Cashew Expansion in West Africa

Animal Conservation, EarlyView.
Relationships between (a) estimated mammal species richness, (b) overall mammal species photographic rate, (c) carnivore photographic rate, (d) insectivore photographic rate, (e) omnivore photographic rate and (f) herbivore photographic rate and the local habitat characteristics as denoted by the scores of the first component of the Principal Component
Daniel Na Mone, Isnaba Nhassé, João Soares, Raquel de Oliveira, Manuel Lopes‐Lima, Luís Palma, Ana Filipa Palmeirim   +6 more
wiley   +1 more source

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

Animal Conservation, EarlyView.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro, Fábio J. V. Costa, Paulo R. R. Ramos, Vladimir E. Costa, Gabriela B. Nardoto   +4 more
wiley   +1 more source

Avaliação do risco de extinção do veado-campeiro Ozotoceros bezoarticus Linnaeus, 1758, no Brasil

Biodiversidade Brasileira, 2012
O estado de conservação no Brasil, das duas subespécies do veado-campeiro, Ozotoceros bezoarticus (Linnaeus, 1758), que ocorrem no país, foi avaliado de acordo com os critérios da IUCN (2001), com base nos dados disponíveis até 2010.
José Maurício Barbanti Duarte, Alexandre Vogliotti, Eveline dos Santos Zanetti, Márcio Leite de Oliveira, Liliani Marília Tiepolo, Lilian Figueiredo Rodrigues, Lilian Bonjorne de Almeida, Fernanda Gass Braga   +7 more
doaj   +3 more sources

Morphology of Guard Hairs in Amazonian Marsupials: Intergeneric Variation, Habitat and Habit Association in a Phylogenetic Framework of the Order Didelphimorphia

Acta Zoologica, EarlyView.
ABSTRACT The cuticle and medulla of guard hairs exhibit distinct morphological patterns among mammalian species. To investigate this variability in marsupials from the Brazilian Amazon, we analysed guard hairs from nine Didelphimorphia species and incorporated data from an additional 25 didelphid species.
Matheus M. Bitencourt, Ana Cristina Mendes‐Oliveira, Gleomar F. Maschio, Maria Clara S. Ribeiro, Alexandra M. R. Bezerra   +4 more
wiley   +1 more source