<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author><author><style face="normal" font="default" size="100%">Yeager, L.A.</style></author><author><style face="normal" font="default" size="100%">Post , D</style></author><author><style face="normal" font="default" size="100%">Bearhop, S.</style></author><author><style face="normal" font="default" size="100%">Araujo, M.S.</style></author><author><style face="normal" font="default" size="100%">Boucek, R.</style></author><author><style face="normal" font="default" size="100%">Harrison, E.</style></author><author><style face="normal" font="default" size="100%">Jud, Z.R.</style></author><author><style face="normal" font="default" size="100%">Matich, P.</style></author><author><style face="normal" font="default" size="100%">Hammerschlag-Peyer, C.M.</style></author><author><style face="normal" font="default" size="100%">Rosenblatt, A.E.</style></author><author><style face="normal" font="default" size="100%">Vaudo, J.J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Applying Stable Isotopes to Examine Food Web Structure: An Overview of Analytical Tools</style></title><secondary-title><style face="normal" font="default" size="100%">Biological Reviews</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year></dates><pages><style face="normal" font="default" size="100%">DOI: 10.1111/j.1469-185X.2011.00208.x</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2012-62892</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Matich, P.</style></author><author><style face="normal" font="default" size="100%">Heithaus, M.R.</style></author><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Contrasting patterns of individual specialization and trophic coupling in two marine apex predators</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Animal Ecology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><volume><style face="normal" font="default" size="100%">80</style></volume><pages><style face="normal" font="default" size="100%">294-305</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">1</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2011-86913</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Matich, P.</style></author><author><style face="normal" font="default" size="100%">Heithaus, M.R.</style></author><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Size-based variation in intertissue comparisons of stable carbon and nitrogen isotopic signatures of bull sharks (Carcharhinus leucas) and tiger sharks (Galeocerdo cuvier)</style></title><secondary-title><style face="normal" font="default" size="100%">Canadian Journal of Fisheries and Aquatic Sciences</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">FCE</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><volume><style face="normal" font="default" size="100%">67</style></volume><pages><style face="normal" font="default" size="100%">877-885</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2010-85839</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Silliman, Brian R.</style></author><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author><author><style face="normal" font="default" size="100%">Geyer, K.</style></author><author><style face="normal" font="default" size="100%">Zieman, J.C.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Predation by the black-clawed mud crab, Panopeus herbstii, in Mid-Atlantic salt marshes: Further evidence for top-down control of marsh grass production</style></title><secondary-title><style face="normal" font="default" size="100%">Estuaries</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000221826300002</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">27</style></volume><pages><style face="normal" font="default" size="100%">188-196</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Although top-down control of plant growth has been shown in a variety of marine systems, it is widely thought to be unimportant in salt marshes. Recent caging experiments in Virginia and Georgia have challenged this notion and shown that the dominant marsh grazer (the periwinkle, Littoraria irrorata) not only suppresses plant growth, but can denude marsh substrate at high densities. In these same marshes, our field observations suggest that the black-clawed mud crab, Panopeus herbstii, is an abundant and potentially important top-down determinant of periwinkle density. No studies have quantitatively examined Panopeus distribution or trophic interactions in marsh systems, and its potential impacts on community structure remained unexplored. We investigated distribution and feeding habits of Panopeus in eight salt marshes along the Mid-Atlantic seashore (Delaware-North Carolina). We found that mud crabs were abundant in tall (4-82 ind m(-2)), intermediate (0-15 ind m(-2)), and short-form (0-5 ind m(-2)) Spartina alterniflora zones in all marshes and that crab densities were negatively correlated with tidal height and positively correlated with bivalve density. Excavation of crab lairs routinely produced shells of plant-grazing snails (up to 36 lair(-1)) and bivalves. Lab experiments confirmed that mud crabs readily consume these abundant marsh molluscs. To experimentally examine potential community effects of observed predation patterns, we manipulated crab and periwinkle densities in a 1-mo field experiment. Results showed that Panopeus can suppress gastropod abundance and that predation rates increase with increasing snail density. In turn, crab suppression of snail density reduces grazing intensity on salt marsh cordgrass, suggesting presence of a trophic cascade. These results indicate that this previously under-appreciated consumer is an important and indirect determinant of community structure and contribute to a growing body of evidence challenging the long-standing notion that consumers play a minor role in regulating marsh plant growth.</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><accession-num><style face="normal" font="default" size="100%">LTER.2004-71288</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fish Assemblage Structure of the Shallow Ocean Surf-Zone on the Eastern Shore of Virginia Barrier Islands</style></title><secondary-title><style face="normal" font="default" size="100%">Estuarine, Coastal and Shelf Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2000</style></year></dates><volume><style face="normal" font="default" size="100%">51</style></volume><pages><style face="normal" font="default" size="100%">210</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2000-49088</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author><author><style face="normal" font="default" size="100%">Smith, D. E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sampling Bias of Minnow Traps in Shallow Aquatic Habitats on the Eastern Shore of Virginia</style></title><secondary-title><style face="normal" font="default" size="100%">Wetlands</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2000</style></year></dates><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">145-154</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2000-49089</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author><author><style face="normal" font="default" size="100%">Smith, D. E.</style></author><author><style face="normal" font="default" size="100%">Herod, J Devin.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Seasonally Varying Importance of Abiotic and Biotic Factors in Marsh-Pond Fish Communities</style></title><secondary-title><style face="normal" font="default" size="100%">Marine Ecology Progress Series</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2000</style></year></dates><volume><style face="normal" font="default" size="100%">207</style></volume><pages><style face="normal" font="default" size="100%">155-169</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.2000-49090</style></accession-num></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Layman, C.A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fish Assemblages in Shallow Water Habitats on the Eastern Shore of Virginia Barrier Islands</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">VCR</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1999</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Virginia</style></publisher><pub-location><style face="normal" font="default" size="100%">Charlottesville, VA</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><accession-num><style face="normal" font="default" size="100%">LTER.1999-49087</style></accession-num></record></records></xml>