ABSTRACT The Amazonian cangas is a vegetation type distributed as patches of open vegetation embedded in a matrix of tropical forest and that grows over iron-rich soils in the Serra dos Carajás region. To characterize cangas avifauna, we surveyed birds in eight patches varying from 43 to 1,366 hectares....
ABSTRACT This study aimed to compare the richness and composition of the epiphytic bryoflora between várzea and igapó forests in Caxiuanã National Forest, Brazilian Amazon. Bryophytes were collected on 502 phorophytes of Virola surinamensis. Average richness per phorophyte and composition between fore...
Resumen:Los ratones espinosos de abazones Liomys y Heteromys son roedores granívoros que se distribuyen en bosques tropicales secos y en matorral espinoso a lo largo de tierras bajas del Pacífico y en regiones xerófilas en la meseta de México. Analizamos la dinámica poblacional del ratón espinoso d...
Resumen:Los estudios sobre gradientes altitudinales han permitido examinar cambios en la riqueza y composición de los ensamblajes de aves, lo que hace posible obtener información sobre las variables ambientales que determinan su distribución y factores que definen la estructura. En este trabajo se des...
Abstract:Large mammal communities, integral components of Neotropical ecosystems, are increasingly threatened by habitat fragmentation and degradation due to anthropogenic pressures and climate change. Lowland Neotropical palm forests harbor diverse mammal communities, including threatened and endangered...
Distribución Animal,
Animales Domésticos,
Animales Salvajes,
Biodiversidad,
Costa Rica,
Bosques,
Mamíferos,
Densidad de Población,
Dinámica Poblacional,
Especificidad de la Especie,
Estadísticas no Paramétricas,
Clima Tropical
Abstract:Remote sensing and traditional ecological knowledge (TEK) can be combined to advance conservation of remote tropical regions, e.g. Amazonia, where intensive in situ surveys are often not possible. Integrating TEK into monitoring and management of these areas allows for community participation, a...
Agricultura/estadística & datos numéricos,
Conservación de los Recursos Naturales,
Seguimiento de Parámetros Ecológicos/métodos,
Bosques,
Mapeo Geográfico,
Pradera,
Indígenas Sudamericanos/etnología,
Modelos Logísticos,
Valores de Referencia,
Tecnología de Sensores Remotos/métodos,
Reproducibilidad de los Resultados,
Ríos,
Análisis Espacio-Temporal,
Venezuela/etnología
Resumen:El ambiente lumínico en el sotobosque de las selvas nubladas es muy heterogéneo y está determinado por la composición de especies, la estructura del dosel, las condiciones de sitio y la estacionalidad. Este estudio se realizó en la selva nublada San Eusebio, Venezuela (2 300-2 500 m.s.n.m.)....
Abstract We tested the hypothesis of a negative relationship between vegetation characteristics and ant species richness in a Brazilian open vegetation habitat, called candeial. We set up arboreal pitfalls to sample arboreal ants and measured the following environmental variables, which were used as surr...
Abstract Ecological restoration aims to retrieve not only the structure but also the functionality of ecosystems. Frugivorous birds may play an important role in this process due to their efficiency in seed dispersal. Color perception in these animals is highly developed, and then the colors of fleshy fr...
Abstract The goal of this study was to identify which bird species consume Solanum granuloso-leprosum fruits and disperse its seeds. 60 hours of focal observations were carried out between April and May 2006 on the edge of a deciduous forest fragment in the Uruguay River region, Rio Grande do Sul state, ...
