16 documents found, page 1 of 2
Combining land cover, animal behavior, and master plan regulations to assess la...
Bhakti, Tulaci; Pena, João Carlos [UNESP]; Niebuhr, Bernardo Brandão [UNESP]; Sampaio, Juliana; Goulart, Fernando FigueiredoMade available in DSpace on 2022-05-01T06:02:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01; Cities are new and expanding ecosystems that harbor a variety of habitats with different degrees of permeability to the local fauna. However, the assessment of urban landscape permeability usually considers biotic and abiotic conditions, with sociopolitical dimensions (e.g., zoning regulations) – also i...
Patterns of orchid bee species diversity and turnover among forested plateaus o...
Antonini, Yasmine; Machado, Carolina Barros; Galetti Jr., Pedro M.; Oliveira, Marcio Luiz de; Dirzo, Rodolfo; Fernandes, G. WilsonThe knowledge of spatial pattern and geographic beta-diversity is of great importance for biodiversity conservation and interpreting ecological information. Tropical forests, especially the Amazon Rainforest, are well known for their high species richness and low similarity in species composition between sites, both at local and regional scales. We aimed to determine the effect and relative importance of area, ...
Orchid bee fauna responds to habitat complexity on a savanna area (Cerrado) in ...
Antonini, Yasmine; Silveira, Rodrigo Assunção; Oliveira, Marcio Luiz de; Martins, Cristiane; Oliveira, ReislaHere we investigated responses of orchid bee assemblages to habitat complexity, with the aim of assessing complexity as a useful surrogate for species diversity of this group. For the purposes of our study, we defined habitat complexity as the heterogeneity in the arrangement in physical structure of habitat (vegetation), although there is a large range of operational definitions in the literature. We test the ...
Patterns of avian malaria in tropical and temperate environments: testing the "...
Antonini, Yasmine; Lobato, Debora Nogueira Campos; Norte, Ana Cláudia; Ramos, Jaime A.; Moreira, Patrícia de Abreu; Braga, Erika MartinsAccording to the enemy release hypothesis (ERH) the spread of invasive species will be facilitated by release from their enemies as they occupy new areas. However, the ERH has rarely been tested by comparing populations of native (non-invasive, long established) species with expanding or shifting ranges, to the same species as invasive in another area. We tested the ERH with respect to blood parasite levels (pr...
Does scale matter? The influence of threelevel spatial scales on forest bird oc...
Duarte, Tulaci Bhakti Faria; Goulart, Fernando Figueiredo; Azevedo, Cristiano Schetini de; Antonini, YasmineConsequences of habitat fragmentation for species occurrence are amongst the most important issues in landscape and conservation ecology. Empirical and theoretical studies have demonstrated that the total amount of habitat, patch size and connectivity have nonlinear effects on species survival on multiple spatial and temporal scales. Therefore, population models need to incorporate multiple scales, which can be...
Pollen storage by stingless bees as an environmental marker for metal contamina...
Nascimento, Nathália de Oliveira; Nalini Júnior, Hermínio Arias; Oliveira, Fernanda Ataide de; Abreu, Adriana Trópia de; Antonini, YasmineSince the middle of the 20th century, human activities have led to overall ecosystem contamination and to major modifications in landscape structure and composition. Mining activities represent a major source of environmental contamination by metal residues. The objective of our study was to evaluate the presence of heavy metals and other elements on stingless bee pollen, and compare them to samples of Suspende...
Owl assemblages in fragments of atlantic forest in Brazil.
Claudino, Ricardo Marcelino; Motta Junior, José Carlos; Antonini, YasmineHabitat loss and fragmentation is recognized as one of the main causes of global biodiversity declines. Birds of prey are considered good environmental bioindicators because they are sensitive to changes in the environment and can suffer local extinctions due to habitat fragmentation. In this study, we aimed to determine whether forest fragment area is correlated with the richness and abundance of owl species, ...
Descriptive ecology of bat flies (Diptera: Hippoboscoidea) associated with vamp...
Aguiar, Ludmilla Moura de Souza; Antonini, YasmineWe studied the ectoparasitic bat flies of three phyllostomid vampire bat species. Bats were collected monthly from April 2004-March 2005 in caves within the Cafuringa Environmental Protection Area in the Federal District of Brazil. A total of 1,259 specimens from six species in the Streblidae family were collected from 332 bats. High host affinity from the sampled bat fly species and high prevalence of bat flie...
Onde os mais Adaptados Permanecem: Comunidade de Abelhas sem Ferrão (Hymenopter...
Araújo, Gustavo Júnior; Antonini, Yasmine; Silva, Luíza Santos; Faria-Mucci, Georgina MariaA urbanização tem causado a fragmentação de vários ambientes naturais, levando à perda de muitos processos ecológicos como a polinização, realizada principalmente por abelhas, em especial as espécies de Meliponini, que tem reduzido drasticamente as suas populações devido à perda de habitat pela expansão urbana. O objetivo deste estudo foi realizar um levantamento das espécies de abelhas sem ferrão em áreas urba...
Reproductive biology of Cipocereus minensis (Cactaceae) — a columnarcactus ende...
Martins, Cristiane; Oliveira, Reisla Silva de; Mendonça Filho, Carlos Victor; Lopes, Liliane Teixeira; Silveira, Rodrigo Assunção daWe studied the reproductive biology of Cipocereus minensis, an endemic columnar cactus of the Espinhac¸ oMountain Range, Southeastern Brazil, focusing on floral biology, breeding system, and pollination. Wedescribed floral morphology and evaluated the role of nocturnal and diurnal pollinators on the repro-ductive success in two populations. C. minensis has large, horizontal, cream-colored, chiropterophilousflow...