4 Works

Data from: Constraints on mammalian forelimb development: insights from developmental disparity

Darcy L. Ross, Jonathan D. Marcot, Keith J. Betteridge, Nanette Nasone-Yoder, C. Scott Bailey, Karen E. Sears, Darcy Ross & Nanette Nascone-Yoder
Tetrapod limb development has been studied extensively for decades, yet the strength and role of developmental constraints in this process remains unresolved. Mammals exhibit a particularly wide array of limb morphologies associated with various locomotion modes and behaviors, providing a useful system for identifying periods of developmental constraint and conserved developmental mechanisms or morphologies. In this study, landmark-based geometric morphometrics are used to investigate levels and patterns of morphological diversity (disparity) among the developing forelimbs...

Data from: Genetic divergence along the speciation continuum: the transition from host race to species in Rhagoletis (Diptera: Tephritdae)

Thomas H. Q. Powell, Glen R. Hood, Mason O. Murphy, Jeffrey S. Heilveil, Stewart H. Berlocher, Partrik Nosil, Jeffrey L. Feder & Patrik Nosil
Studies of related populations varying in their degrees of reproductive isolation can provide insights into speciation. Here, the transition from partially isolated host races to more fully separated sibling species is investigated by comparing patterns of genetic differentiation between recently evolved (∼150 generations) apple and ancestral hawthorn-infesting populations of Rhagoletis pomonella to their sister taxon, the undescribed flowering dogwood fly attacking Cornus florida. No fixed or diagnostic private alleles differentiating the three populations were found...

Data from: Rates of genomic divergence in humans, chimpanzees and their lice

Kevin P. Johnson, Julie M. Allen, Brett P. Olds, Lawrence Mugisha, David L. Reed, Ken N. Paige & Barry R. Pittendrigh
The rate of DNA mutation and divergence is highly variable across the tree of life. However, the reasons underlying this variation are not well understood. Comparing the rates of genetic changes between hosts and parasite lineages that diverged at the same time is one way to begin to understand differences in genetic mutation and substitution rates. Such studies have indicated that the rate of genetic divergence in parasites is often faster than that of their...

Data from: Plant-pollinator interactions over 120 years: loss of species, co-occurrence, and function

Laura A. Burkle, John C. Marlin & Tiffany M. Knight
Using historic data sets, we quantified the degree to which global change over 120 years disrupted plant-pollinator interactions in a temperate forest understory community in Illinois, USA. We found degradation of interaction network structure and function and extirpation of 50% of bee species. Network changes can be attributed to shifts in forb and bee phenologies resulting in temporal mismatches, nonrandom species extinctions, and loss of spatial co-occurrences between extant species in modified landscapes. Quantity and...

Registration Year

  • 2013
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  • Dataset
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Affiliations

  • University of Illinois at Urbana Champaign
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  • Notre Dame University
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  • University of Illinois System
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  • University of Notre Dame
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  • University of Guelph
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  • Washington University in St. Louis
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  • University of Chicago
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  • University of Florida
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  • Makerere University
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  • North Carolina State University
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