Buscar
Mostrando ítems 1-10 de 2594
Effect of fragmentation on the Costa Rican dry forest avifauna
(2016)
Deforestation and changes in land use have reduced the tropical dry forest to isolated forest patches in northwestern Costa Rica. We examined the effect of patch area and length of the dry season on nestedness of the entire ...
A meta-analysis of leaf-cutting ant nest effects on soil fertility and plant performance
(Wiley, 2015-04)
1. Leaf-cutting ants (LCAs) are considered as one of the most important agents of soil disturbances that affect vegetation patterns, but these assertions are based on isolated studies or anecdotal data. In this study, ...
Metacommunity structure analysis reveals nested patterns in deconstructed macroinvertebrates assemblages
(Wiley, 2020-07)
Understanding processes driving patterns of species distribution anddiversity is one of the main objectives of community ecology. The aim of our study was to evaluate the spatial variation in assemblage compositionof ...
Micro-epidemiology and spatial heterogeneity of P. vivax parasitaemia in riverine communities of the Peruvian Amazon: A multilevel analysis
(Springer Nature, 2017)
Malaria has steadily increased in the Peruvian Amazon over the last five years. This study aimed to determine the parasite prevalence and micro-geographical heterogeneity of Plasmodium vivax parasitaemia in communities of ...
Detection of Hepatitis B virus subgenotype A1 in a Quilombo community from Maranhao, Brazil
(BIOMED CENTRAL LTD, 2011)
Background: The Brazilian population is mainly descendant from European colonizers, Africans and Native Americans. Some Afro-descendants lived in small isolated communities since the slavery period. The epidemiological ...
Fluctuations in Richness and Abundance of Social Wasps During the Dry and Wet Seasons in Three Phyto-Physiognomies at the Tropical Dry Forest of Brazil
(Entomological Soc Amer, 2009-12-01)
The social wasp nests were quantified in three different plant physiognomies (forested Caatinga, shrubby Caatinga, and agricultural systems) to analyze the effect of environmental seasonality and plant physiognomy on the ...
Fluctuations in Richness and Abundance of Social Wasps During the Dry and Wet Seasons in Three Phyto-Physiognomies at the Tropical Dry Forest of Brazil
(Entomological Soc Amer, 2009-12-01)
The social wasp nests were quantified in three different plant physiognomies (forested Caatinga, shrubby Caatinga, and agricultural systems) to analyze the effect of environmental seasonality and plant physiognomy on the ...
DGGE with genomic DNA: Suitable for detection of numerically important organisms but not for identification of the most abundant organisms
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Identification of all important community members as well as of the numerically dominant members of a community are key aspects of microbial community analysis of bioreactor samples. A systematic study was conducted with ...
Olive ridley mass nesting ecology and egg harvest at ostional beach, Costa Rica
(Chelonian Conservation and Biology, 2012-06)
The olive ridley sea turtle (Lepidochelys olivacea), a species listed by the International Union for Conservation of Nature as vulnerable, is characterized by its mass-nesting behavior, also known as arribada. For decades, ...
The influence of local and landscape scale on single response traits in bees: A meta-analysis
(Elsevier Science, 2018-03)
Assessments of environmental drivers that regulate the functional composition of various organisms have become more frequent in the ecological literature, as this approach establishes a more direct connection between ...