Climate and human influences on marine ecosystems are largely manifested by changes in predator-prey interactions. It follows that ecosystem-based management of the world's oceans requires a better understanding of food web relationships. An international workshop on predator-prey interactions in marine ecosystems was held at the Oregon State University, Corvallis, OR, USA on 16-18 March 2010. The meeting brought together scientists from diverse fields of expertise including theoretical ecology, animal behaviour, fish and seabird ecology, statistics, fisheries science and ecosystem modelling. The goals of the workshop were to critically examine the methods of scaling-up predator-prey interactions from local observations to systems, the role of shifting ecological processes with scale changes, and the complexity and organizational structure in trophic interactions.
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http://dx.doi.org/10.1098/rsbl.2010.0326 | DOI Listing |
Biodivers Data J
January 2025
Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain Museo Nacional de Ciencias Naturales (MNCN-CSIC) Madrid Spain.
Insights into insect predatory behaviour can be inferred indirectly from specimens housed in Natural History Collections. In this work, we document a unique interaction, never recorded before, involving the remains of a Westwood, 1840 ant worker -probably (Smith, 1855)- whose head is firmly attached by its mandibles to an antenna of a female hawk moth (Cramer, 1775) (Sphingidae). This specimen is part of the Entomology Collection at the MNCN-CSIC in Madrid, Spain.
View Article and Find Full Text PDFEcology
January 2025
Bodega Marine Laboratory, University of California Davis, Bodega Bay, California, USA.
A growing body of theoretical studies and laboratory experiments has focused attention on reciprocal feedbacks between ecological and evolutionary processes. However, uncertainty remains about whether such eco-evolutionary feedbacks have an important or negligible influence on natural communities. Thus, recent discussions call for field experiments that explore whether selection on phenotypic variation within populations leads to contemporaneous effects on community dynamics.
View Article and Find Full Text PDFUrbanization as a major driver of global change modifies biodiversity patterns and the abundance and interactions among species or functional species groups. For example, urbanization can negatively impact both predator-prey and mutualistic relationships. However, empirical studies on how urbanization modifies biotic, particularly multitrophic, interactions are still limited.
View Article and Find Full Text PDFJ Ethol
December 2024
Department of Environmental Science and Policy, University of California, Davis, CA 95616 USA.
Unlabelled: Dietary flexibility allows animals to respond adaptively to food pulses in the environment. Here we document the novel emergence of widespread hunting of California voles and carnivorous feeding behavior by California ground squirrels. Over two months in the twelfth year of a long-term study on the squirrel population, we document 74 events of juvenile and adult ground squirrels of both sexes depredating, consuming, and/or competing over vole prey.
View Article and Find Full Text PDFG3 (Bethesda)
January 2025
University College Dublin, School of Biology and Environmental Science, Belfield, Dublin 4, Ireland.
Chemical signaling can play a crucial role in predator-prey dynamics. Here, we present evidence that ink from the common cuttlefish (Sepia officinalis) targets olfactory receptor proteins in shark, potentially acting as a predator deterrence. We apply in silico 3D docking analysis to investigate the binding affinity of various odorant molecules to shark olfactory receptors of two shark species: cloudy catshark (Scyliorhinus torazame) and white shark (Carcharodon carcharias).
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