• Publications
  • Influence
Evolution and Ecology of Species Range Limits
TLDR
Range edges are characterized by increased genetic isolation, genetic differentiation, and variability in individual and population performance, but evidence for decreased abundance and fitness is lacking, and a better fusion of experimentation and theory will advance understanding of the causes of range limits. Expand
Do species' traits predict recent shifts at expanding range edges?
TLDR
Current evidence for the relationship between leading-edge range shifts and species' traits is assessed and expected relationships for several datasets are found, including diet breadth in North American Passeriformes and egg-laying habitat in British Odonata are found. Expand
Functional tradeoffs determine species coexistence via the storage effect
TLDR
It is shown that functional tradeoffs explain species differences in long-term population dynamics that are associated with recovery from low density (and hence coexistence) for a community of winter annual plants in the Sonoran Desert. Expand
Where and When do Species Interactions Set Range Limits?
TLDR
Tests of abiotic forces set species range limits at high latitude, high elevation, and other abiotically 'stressful' areas are reviewed and approaches to better test this theory are suggested, which will deepen understanding of the forces that determine species ranges and govern responses to climate change. Expand
Geographic variation in genetic and demographic performance: new insights from an old biogeographical paradigm
TLDR
A framework is proposed that integrates species' ecological niche characteristics together with current and past range structure to investigate spatial patterns of genetic and demographic variation across species ranges and disentangle the relative contribution of geographical, ecological and historical processes on the spatial distribution of Genetic and demographic parameters. Expand
Demography of central and marginal populations of monkeyflowers (Mimulus cardinalis and M. lewisii).
  • A. Angert
  • Biology, Medicine
  • Ecology
  • 1 August 2006
TLDR
Life table response analysis decomposed spatiotemporal variation in lambda into contributions from each transition between life stages, finding that transitions from large nonreproductive and reproductive plants to the seed class and stasis in the reproductive class made the largest contributions to spatial differences in lambda. Expand
TREE RECRUITMENT IN AN EMPTY FOREST
To assess how the decimation of large vertebrates by hunting alters recruitment processes in a tropical forest, we compared the sapling cohorts of two structurally and compositionally similar forestsExpand
THE EVOLUTION OF SPECIES' DISTRIBUTIONS: RECIPROCAL TRANSPLANTS ACROSS THE ELEVATION RANGES OF MIMULUS CARDINALIS AND M. LEWISII
TLDR
Low fitness of both species at their range margin and weak differntiation among populations within each species suggest that adaption to the environment at and beyond the range margin is hindered, illustrating that range margins provide an interesting system in which to study limits to adaptation. Expand
The niche, limits to species' distributions, and spatiotemporal variation in demography across the elevation ranges of two monkeyflowers
  • A. Angert
  • Biology, Medicine
  • Proceedings of the National Academy of Sciences
  • 17 November 2009
TLDR
Investigation of the demography of Mimulus cardinalis and Mimulus lewisii across the species' elevation ranges found both species had higher fitness in higher reaches of their examined ranges, concordant with respect to elevation. Expand
Moving Character Displacement beyond Characters Using Contemporary Coexistence Theory.
TLDR
A new experimental approach is proposed, adopted from the coexistence literature, that directly measures interspecific competition among sympatric and allopatric populations of species to lead to a broader understanding of character displacement and its consequences for community structure. Expand
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