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Full-Text Articles in Life Sciences
Integrative Taxonomy, A New Tool For Fisheries Conservation, Adela Roa-Varon, Eric J. Hilton
Integrative Taxonomy, A New Tool For Fisheries Conservation, Adela Roa-Varon, Eric J. Hilton
Presentations
Species delimitation is becoming increasingly objective and integrative. Sequence capture approaches allow collection of 1000s of loci for 100s of individuals. New approaches address the computational challenges of large datasets and offer potential for genome-wide sampling of variation at different evolutionary scales. These new approaches also allow integration of genetic and non-genetic data in a unified framework. Despite these advances, few studies have attempted to combine genetic and morphological data for delimiting species. Hakes (Merluccius spp.) are an ideal group for an empirical test of the power and applicability of these new methods because they are morphologically conserved and …
Biodiversity Mediates Productivity Through Different Mechanisms At Adjacent Trophic Levels, Zt Long, Jf Bruno, Je Duffy
Biodiversity Mediates Productivity Through Different Mechanisms At Adjacent Trophic Levels, Zt Long, Jf Bruno, Je Duffy
VIMS Articles
Biodiversity may enhance productivity either because diverse communities more often contain productive species (selection effects) or because they show greater complementarity in resource use. Our understanding of how these effects influence community production comes almost entirely from studies of plants. To test whether previous results apply to higher trophic levels, we first used simulations to derive expected contributions of selection and complementarity to production in competitive assemblages defined by either neutral interactions, dominance, or a trade-off between growth and competitive ability. The three types of simulated assemblages exhibited distinct interaction signatures when diversity effects were partitioned into selection and complementarity …