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Habitat fragmentation and its lasting impact on Earth’s ecosystems
- N. Haddad, L. A. Brudvig, +21 authors J. Townshend
- Environmental Science, Medicine
- Science Advances
- 1 March 2015
Urgent need for conservation and restoration measures to improve landscape connectivity. We conducted an analysis of global forest cover to reveal that 70% of remaining forest is within 1 km of the… Expand
Are Plant Populations Seed Limited? A Critique and Meta‐Analysis of Seed Addition Experiments
We examine the relative importance of processes that underlie plant population abundance and distribution. Two opposing views dominate the field. One posits that the ability to establish at a site is… Expand
Effects of elemental composition on the incorporation of dietary nitrogen and carbon isotopic signatures in an omnivorous songbird
The use of stable isotopes to infer diet requires quantifying the relationship between diet and tissues and, in particular, knowing of how quickly isotopes turnover in different tissues and how… Expand
Spatial and Temporal Variation in Costa Rican Fruit and Fruit‐Eating Bird Abundance
- D. Levey
- 1 February 1988
Understory fruit and fruit-eating birds were censused monthly for a year in gaps, intact forest, and second-growth sites of a lowland Costa Rican rain forest. Both fruits and birds displayed… Expand
Recent advances in understanding migration systems of New World land birds
Our understanding of migratory birds' year-round ecology and evolution remains patchy despite recent fundamental advances. Periodic reviews focus future research and inform conservation and… Expand
Seed dispersal and frugivory : ecology, evolution, and conservation
Historical and theoretical aspects of frugivory and seed dispersal plant strategies animal strategies conseqences of seed dispersal conservation perspectives. (Part contents).
Secondary Metabolites Of Fleshy Vertebrate‐Dispersed Fruits: Adaptive Hypotheses And Implications For Seed Dispersal
We discuss seven hypotheses to explain the adaptive significance of secondary metabolites in ripe fleshy fruits and their implications for seed dispersal. These hypotheses are the… Expand
Evolutionary Precursors of Long-Distance Migration: Resource Availability and Movement Patterns in Neotropical Landbirds
Seasonal movements are common in Neotropical forest birds. Species that engage in the largest movements, altitudinal and intratropical migrants, are predominantly frugivores or nectarivores of… Expand
COMPLEX ANT-PLANT INTERACTIONS: RAIN FOREST ANTS AS SECONDARY DISPERSERS AND POST-DISPERSAL SEED PREDATORS'
We describe the role of leaf-litter ants (Pheidole spp.) in the seed bank dynamics of several small-seeded shrubs in a Costa Rican lowland rain forest. These ants harvest seeds from frugivore feces… Expand
Squeezed at the top: Interspecific aggression may constrain elevational ranges in tropical birds.
Tropical montane species are characterized by narrow elevational distributions. Recent perspectives on mechanisms maintaining these restricted distributions have emphasized abiotic processes, but… Expand