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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Many animals, including humans, choose their source of nutrition based on the nutritive value and the flavor (i.e, odor, taste and texture) of available foods. Sweet taste is one of the more potent orosensory stimuli that contributes to...
Understanding the evolution of cooperative behaviors is a major goal of evolutionary biology, but the majority of research in this field has focused on why helpers assist others. Helpers’ reproductive costs introduce a clear paradox to...
Species interactions can regulate a population’s density and therefore can act as a selective force on that population. Such evolutionary responses have the potential to feedback and change ecological interactions between species. For...
Many genetic patterns observed within and between species are often attributed to processes that affect interpopulation genetic exchange. These patterns are often taken as evidence of the genetic processes without explicit tests of the...
Hadrosaurids were the most diverse and abundant dinosaurs at the end of the Cretaceous. However, their phylogeny is incompletely known and the relationships of many taxa, particularly European and South American, remains unresolved....
Behavioral interactions among individuals can have complex effects on trait evolution. In this study I quantify the strength of correlation between aggressive and advertisement calls in the chorus frog, Pseudacris feriarum, to assess...
Growth over ontogeny can profoundly affect the form and function of biological structures. Since animal performance is tightly linked to morphological specialization, ontogenetic change in size may help structure that organism's...
Biological hard materials are a remarkable class of materials combining large volumes of mineral with minute organic components into often complex, hierarchical microstructural arrangements. These intricate microstructures offer ideal...
This study examines the evolutionary history of the cosmopolitan beaksedge tribe Rhynchosporeae (ca. 386 spp.; Cyperaceae) using phylogenetics. Taxon sampling covers 25 of the 28 taxonomic sections proposed for the tribe. I compare a...
The Pine Barrens treefrog (Hyla andersonii) is restricted to three isolated (disjunct) regions in the eastern United States: New Jersey, North and South Carolina, and the Florida panhandle and southern Alabama. It is a seepage bog...
The degree to which ontogenetic data could facilitate the understanding of phylogenetic relationships has long been a subject of contention in evolutionary biology. Known occurrences of paedomorphosis have invalidated strict adherences...
Tooth enamel microstructure has been shown to vary among mammals. Such variation has a major bearing upon whole-tooth biomechanical function and may reflect gross-level phylogenetic signal. Although variation is substantial within...
During their 473 million-year diversification, gnathostomes came to exploit an unprecedented variety of trophic niches. Modifications to dental form and mineralized tissue constituents (i.e. enamel, dentines and in a few taxa, cementum)...
Plants are host to a diverse array of non-pathogenic microbes including bacteria and fungi which may act as an "extended phenotype" that provides fitness benefits throughout the life cycle of the plant. These microbial communities...
Most mega-biodiverse countries have low to upper middle incomes (Fisher and Christopher 2007), resulting in a shortage of funding and expertise to implement conservation actions in these biodiversity hotspots. Creating conservation...
Symbioses are pervasive in life and confer novel adaptive capabilities that enable ecological expansion into unexplored niches. Evolutionary transitions in symbiosis (terminations, origins, host shifts, or changes in relationship...
Predicting which species will become invasive when introduced to a novel range is one of the main goals of invasion biology. However, many studies of the factors influencing invasion either use the wrong comparison group, fail to control...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
