2 Works

Cross-ecosystem bottlenecks alter reciprocal subsidies within meta-ecosystems

Amanda Klemmer, Mark Galatowitsch & Angus McIntosh
Reciprocal subsidies link ecosystems into meta-ecosystems, but energy transfer to organisms that do not cross boundaries may create sinks, reducing reciprocal subsidy transfer. We investigated how the type of subsidy and top predator presence influenced reciprocal flows of energy, by manipulating the addition of terrestrial leaf and terrestrial insect subsidies to experimental freshwater pond mesocosms with and without predatory fish. Over 18 months, fortnightly addition of subsidies (terrestrial beetle larvae) to top-predators was crossed with...

PERMANOVA results from Principal component analysis of avian hind limb and foot morphometrics and the relationship between ecology and phylogeny

Amanda Falk, James Lamsdell & Enpu Gong
Principal component analysis has been used to test for similarities in ecology and life habit between modern and fossil birds, however, the two main portions of the hindlimb—the foot and the long bone elements—have not been examined separately. We examine the potential links between morphology, ecology, and phylogeny through a synthesis of phylogenetic paleoecological methods and morphospace analysis. Both hindlimb morphologies and species’ ecologies exhibit extreme phylogenetic clumping, although these patterns are at least partially...

Registration Year

  • 2020
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Resource Types

  • Dataset
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Affiliations

  • Centre College
    2
  • West Virginia University
    1
  • University of Maine
    1
  • University of Canterbury
    1
  • Northeastern University
    1