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Sean O'Donnell

Researcher at Drexel University

Publications -  146
Citations -  5489

Sean O'Donnell is an academic researcher from Drexel University. The author has contributed to research in topics: Vespidae & Army ant. The author has an hindex of 39, co-authored 140 publications receiving 4951 citations. Previous affiliations of Sean O'Donnell include University of California, Davis & University of Washington.

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Averting biodiversity collapse in tropical forest protected areas

William F. Laurance, +216 more
- 13 Sep 2012 - 
TL;DR: These findings suggest that tropical protected areas are often intimately linked ecologically to their surrounding habitats, and that a failure to stem broad-scale loss and degradation of such habitats could sharply increase the likelihood of serious biodiversity declines.
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Energy, density, and constraints to species richness: ant assemblages along a productivity gradient.

TL;DR: Two nonlinear functions (NAP‐density and density‐species richness) combine to create, at a variety of scales, positive, decelerating, productivity‐diversity curves for a common, ecologically dominant taxon across the terrestrial productivity gradient.
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Reproductive caste determination in eusocial wasps (Hymenoptera: Vespidae).

TL;DR: Correlative and experimental studies indicate that differences in nutrition during larval development are often the basis of pre-imaginal caste determination, which has important implications for the roles of subfertility and manipulation by nest mates in the evolution of eusocial behavior.
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Three energy variables predict ant abundance at a geographical scale

TL;DR: A survey of 49 New World habitats found a two order of magnitude span in the abundance (nests m−2) of ground nesting ants (Formicidae), which should be useful in predicting biotic responses to climate change.
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Microhabitat and body size effects on heat tolerance: implications for responses to climate change (army ants: Formicidae, Ecitoninae).

TL;DR: In this paper, the authors used Neotropical army ants (Formicidae: Ecitoninae) as models to test for microhabitat temperature differences, and conducted CTmax assays for army ants with varying degrees of surface activity and with different body sizes within and between species.