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Variation in aboveground tree live biomass in a central Amazonian Forest: Effects of soil and topography
We used forest inventories, conducted in seventy-two 1-ha permanent plots to assess the variation in tree and palm aboveground live biomass (AGLB), and its relation with soil gradients (texture andExpand
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RAPELD: A MODIFICATION OF THE GENTRY METHOD FOR BIODIVERSITY SURVEYS IN LONG-TERM ECOLOGICAL RESEARCH SITES.
Our objectives were to develop a method that would be appropriate for long-term ecological studies, but that would permit rapid surveys to evaluate biotic complementarity and land-use planning inExpand
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MASKING INTERFERENCE AND THE EVOLUTION OF THE ACOUSTIC COMMUNICATION SYSTEM IN THE AMAZONIAN DENDROBATID FROG ALLOBATES FEMORALIS
The efficacy of communication relies on detection of species-specific signals against the background noise. Features affecting signal detection are thus expected to evolve under selective pressuresExpand
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Ant diversity in an Amazonian savanna: Relationship with vegetation structure, disturbance by fire, and dominant ants
The savannas of South America support a relatively diverse ant fauna, but little is known about the factors that influence the structure and dynamics of these assemblages. In 1998 and 2002, weExpand
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Gradients within gradients: The mesoscale distribution patterns of palms in a central Amazonian forest
Questions: What are the relative contributions of environmental factors and geographic distance to palm community structure at the mesoscale, and how do they depend on the length of the environmentalExpand
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Use of Geometric Forms to Estimate Volume of Invertebrates in Ecological Studies of Dietary Overlap
Abstract Studies of diet overlap of insectivores, especially lizards, have been important for the development of much ecological theory. However, measures of overlap, usually based on dietaryExpand
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Vertical distance from drainage drives floristic composition changes in an Amazonian rainforest
Background: Plant composition changes with topography and edaphic gradients that correlate with soil-water and nutrient availability. Data on soil water for the Amazon Basin are scarce, limiting theExpand
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Aposematism increases acoustic diversification and speciation in poison frogs
Multimodal signals facilitate communication with conspecifics during courtship, but they can also alert eavesdropper predators. Hence, signallers face two pressures: enticing partners to mate andExpand
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Acoustic and Morphological Differentiation in the Frog Allobates femoralis: Relationships with the Upper Madeira River and Other Potential Geological Barriers
We studied patterns of call acoustics and external morphological differentiation in populations of the dart-poison frog Allobates femoralis occurring in forested areas along a 250-km stretch of theExpand
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Temporal Patterns of Reproductive Activity and Site Attachment of the Brilliant-Thighed Frog Allobates femoralis from Central Amazonia
Abstract Field observations and mark–recapture sampling carried out in the Reserva Ducke in Central Amazonia provided information on the occurrence of reproductive events of the Brilliant-ThighedExpand
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