Results 81 to 90 of about 2,541 (203)

The value of regeneration for insect fauna associated with leaf litter in the Brazilian savanna: A comparative study of biomass and trophic structure

Annals of Applied Biology, EarlyView.
This study demonstrates the ecological value of natural regeneration in the Brazilian Cerrado by analysing the biomass, richness and trophic structure of leaf litter insects across pasture (P), regenerating (R) and native (N) areas. We found that R areas supported insect communities more similar to N habitats than to Ps, with higher richness, greater ...
Thalita Moraes Miranda Ribeiro de Souza, Rodrigo Aranda   +1 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

Effects of soil physical properties on dung beetle assemblages in pasture landscapes of the Brazilian Cerrado

Agricultural and Forest Entomology, EarlyView.
We assessed the effect of the type of soil texture (loamy sand and sandy loam) and its physical properties on dung beetle species assemblages in a pastureland region of the Brazilian Cerrado. We found a reduction in the total and paracoprid beetle abundances in loamy sand soil. Furthermore, the increase of soil compaction negatively affected the entire
César Murilo de Albuquerque Correa, Renato Portela Salomão, Anderson Puker, Fernando Z. Vaz‐de‐Mello, Alfredo Raúl Abot   +4 more
wiley   +1 more source

When Similar Individuals Don't Attract: Absence of Assortative Mating by Coloration in a Damselfly With Honest Signaling

Ethology, EarlyView.
In Acanthagrion lancea damselflies, both sexes display blue ornamentation, but do they choose mates based on it? We tested whether mutual mate choice and time constraints influence ornament evolution. Blue coloration correlated with individual quality, but individuals did not choose mates based on color, and this was unaffected by time constraints over
Maria C. A. Melillo, Stefânia P. R. Ventura, Rhainer Guillermo‐Ferreira, Paulo Enrique C. Peixoto   +3 more
wiley   +1 more source

Anthropogenic Disturbances Affect the Relationship Between Spectral Indices and the Biometric Variables of Brazilian Savannas

Floresta e Ambiente
According to previous studies involving biometric variables modeling using remote sensing (RS), data did not consider the effects of anthropogenic disturbance as relevant factor. The main objective of this study was to model aboveground biomass (AGB) and
Eduarda Martiniano de Oliveira Silveira, Fausto Weimar Acerbi Júnior, Sérgio Teixeira Silva, José Márcio de Mello   +3 more
doaj   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

Ibis, EarlyView.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Floristic and phytosociological analysis of palm swamps in the central part of the Brazilian savanna

Acta Botânica Brasílica, 2013
We analyzed the floristics and phytosociology of three palm swamps in the municipality of Bela Vista de Goiás, located in the state of Goiás, Brazil, in the central part of the Brazilian savanna (Cerrado).
Isa Lucia de Morais Resende, Lázaro José Chaves, José Ângelo Rizzo   +2 more
doaj  

Hepatoprotective Effects of Four Brazilian Savanna Species on Acetaminophen-Induced Hepatotoxicity in HepG2 Cells. [PDF]

Plants (Basel), 2023
Ribeiro GDS, Martins DHN, Gomes JVD, Davies NW, Fagg CW, Simeoni LA, Homem-de-Mello M, Magalhães PO, Silveira D, Fonseca-Bazzo YM.   +9 more
europepmc   +1 more source

Mapping Brazilian savanna vegetation gradients with Landsat time series

International Journal of Applied Earth Observation and Geoinformation, 2016
Abstract Global change has tremendous impacts on savanna systems around the world. Processes related to climate change or agricultural expansion threaten the ecosystem’s state, function and the services it provides. A prominent example is the Brazilian Cerrado that has an extent of around 2 million km2 and features high biodiversity with many endemic
Marcel Schwieder, Pedro J. Leitão, Mercedes Maria da Cunha Bustamante, Laerte Guimarães Ferreira, Andreas Rabe, Patrick Hostert   +5 more
openaire   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

Ibis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza, Camila Duarte Ritter, João Marcos Guimarães Capurucho, Juliana Menger, Camila Cherem Ribas   +4 more
wiley   +1 more source