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Latitudinal gradients in species abundance and diversity have been postulated for nearshore taxa but few analyses have been done over sufficiently broad geographic scales incorporating various nearshore depth strata to empirically test these gradients. Typically, gradients are based on literature reviews and species lists and have focused on alpha diversity(More)
This study examined echinoderm assemblages from nearshore rocky habitats for large-scale distribution patterns with specific emphasis on identifying latitudinal trends and large regional hotspots. Echinoderms were sampled from 76 globally-distributed sites within 12 ecoregions, following the standardized sampling protocol of the Census of Marine Life NaGISA(More)
Relationships of diversity, distribution and abundance of benthic decapods in intertidal and shallow subtidal waters to 10 m depth are explored based on data obtained using a standardized protocol of globally-distributed samples. Results indicate that decapod species richness overall is low within the nearshore, typically ranging from one to six taxa per(More)
The efficacy of seawater-extracted fresh and decomposing blue crab (Callinectes sapidus) claw muscle homogenates as stimulants of feeding behavior by the ghost crab (Ocypode quadrata) was tested with cheliped flexion as a bioassay. Stimulatory components of extracts were heat-stable and <1 kDa. Fresh seawater extracts of muscle tissue homogenate elicited(More)
The increased chance of extinction for rare species jeopardizes the resilience of high-diversity coastal ecosystems where the uncommon often hold key roles that sustain ecosystem functioning. Rare species can support the most vulnerable functions of an ecosystem, occupy niches that more common species are unable to fill, and have significant,(More)
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