Trait‐based diet selection: prey behaviour and morphology predict vulnerability to predation in reef fish communities

Journal of Animal Ecology - Tập 83 Số 6 - Trang 1451-1460 - 2014
Stephanie Green1,2, Isabelle M. Côté1
1Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
2Department of Zoology Oregon State University Corvallis OR 97331‐2914 USA

Tóm tắt

Summary Understanding how predators select their prey can provide important insights into community structure and dynamics. However, the suite of prey species available to a predator is often spatially and temporally variable. As a result, species‐specific selectivity data are of limited use for predicting novel predator–prey interactions because they are assemblage specific. We present a method for predicting diet selection that is applicable across prey assemblages, based on identifying general morphological and behavioural traits of prey that confer vulnerability to predation independent of species identity. We apply this trait‐based approach to examining prey selection by Indo‐Pacific lionfish (Pterois volitans and Pterois miles), invasive predators that prey upon species‐rich reef fish communities and are rapidly spreading across the western Atlantic. We first generate hypotheses about morphological and behavioural traits recurring across fish species that could facilitate or deter predation by lionfish. Constructing generalized linear mixed‐effects models that account for relatedness among prey taxa, we test whether these traits predict patterns of diet selection by lionfish within two independent data sets collected at different spatial scales: (i) in situ visual observations of prey consumption and availability for individual lionfish and (ii) comparisons of prey abundance in lionfish stomach contents to availability on invaded reefs at large. Both analyses reveal that a number of traits predicted to affect vulnerability to predation, including body size, body shape, position in the water column and aggregation behaviour, are important determinants of diet selection by lionfish. Small, shallow‐bodied, solitary fishes found resting on or just above reefs are the most vulnerable. Fishes that exhibit parasite cleaning behaviour experience a significantly lower risk of predation than non‐cleaning fishes, and fishes that are nocturnally active are at significantly greater risk. Together, vulnerable traits heighten the risk of predation by a factor of nearly 200. Our study reveals that a trait‐based approach yields insights into predator–prey interactions that are robust across prey assemblages. Importantly, in situ observations of selection yield similar results to broadscale comparisons of prey use and availability, which are more typically gathered for predator species. A trait‐based approach could therefore be of use across predator species and ecosystems to predict the outcomes of changing predator–prey interactions on community dynamics.

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Tài liệu tham khảo

10.3354/meps07620

10.1890/03-3150

10.1007/s00442-007-0693-3

10.1073/pnas.93.10.4608

10.1890/08-0395.1

Barton K.(2013)MuMIn: Multi‐model inference. R package version 1.9.13. Available at:http://CRAN.R-project.org/package=lme4.

Bates D. Maechler M.&Bolker B.(2012)lme4: Linear Mixed‐Effects Models Using S4 Classes. R Package Version 0.999999‐0. Available at:http://CRAN.R-project.org/package=lme4.

10.1098/rspb.1998.0535

10.1111/j.1365-2699.2011.02496.x

10.1016/j.jembe.2003.08.015

10.1007/s12080-010-0078-9

Böhlke J.E., 1993, Fishes of the Bahamas and Adjacent Tropical Waters

10.1016/j.tree.2008.10.008

10.3354/meps227051

Burnham K.P., 2002, Model Selection and Multimodel Inference: A Practical Information Theoretics Approach

10.1007/BF00346423

10.1098/rspb.2002.2263

10.3354/meps124031

10.1111/j.1365-2664.2007.01438.x

Colin P.L., 1975, The Neon Gobies: The Comparative Biology of the Gobies of the Genus Gobiosoma, Subgenus Elacatinus, (Pisces: Gobiidae) in the Tropical Western North Atlantic Ocean

Côté I.M., 2000, Evolution and ecology of cleaning symbioses in the sea, Oceanography and Marine Biology, 38, 311

10.3354/meps08458

10.1016/j.biocon.2013.04.014

10.3354/meps09992

10.1126/science.1135918

10.1038/23028

10.2307/4003681

Deloach N., 1999, Reef Fish Behavior: Florida, Caribbean and Bahamas

10.2307/3676878

Einfalt L.M., 1997, Prey Selection by Juvenile Walleye as Influenced by Prey Morphology and Behavior, 10.1139/f97-172

FAO, 2002, The Living Marine Resources of the Western Central Atlantic, 601

FAO, 2002, The Living Marine Resources of the Western Central Atlantic, 1375

Fishelson L., 1975, Ethology and reproduction of pteroid fishes found in the Gulf of Aqaba (Red Sea), especially Dendrochirus brachypterus (Cuvier), (Pteroidae, Teleostei), Pubblicazioni della Stazione Zoologica di Napoli, 39, 635

10.1002/sim.3107

10.2307/1941408

10.3354/meps09208

10.1071/WR9810349

10.1371/journal.pone.0032596

10.1890/13‐0979.1

10.1111/j.1420-9101.2010.02210.x

10.1577/1548-8659(1991)120<0500:EAOPSB>2.3.CO;2

10.1016/j.jtbi.2010.12.006

10.1016/j.jembe.2011.12.011

10.1139/f07-130

Hernández A., 1995, Selective predation by Northern Shrikes on small mammals in a natural environment (Depredación Selectiva Sobre Micromamíferos por Lanius excubitor en Condiciones Naturales), Journal of Field Ornithology, 66, 236

10.1086/284280

10.1163/156853956X00156

Humann P., 2002, Reef Fish Identification: Florida, Caribbean and Bahamas

10.1016/j.jglr.2012.02.017

10.3354/meps08380

10.1046/j.1365-2656.1999.00312.x

10.1093/acprof:oso/9780198564836.003.0009

10.3354/meps217157

10.2307/5647

10.2307/1938041

10.1046/j.0021-8790.2001.00536.x

10.1111/j.1365-2745.2004.00838.x

10.1073/pnas.091093398

10.1007/s10641-009-9538-8

10.1126/science.1121129

10.3354/meps09154

10.1038/nature01610

10.1034/j.1600-0706.2000.880310.x

10.1007/s11160-011-9240-8

10.2307/4220

10.1007/s00442-009-1342-9

10.1007/978-94-011-1578-0

10.1086/285880

10.1007/s10905-006-9023-6

10.1086/409852

R Core Team, 2012, R: A language and environment for statistical computing

ReefNet, 2007, Reef Fish Identification: Florida, Caribbean, Bahamas

10.1007/s10530-008-9228-z

10.1016/S0022-0981(03)00260-0

10.1023/A:1025826829548

10.4319/lo.1983.28.2.0352

10.1007/BF00131537

USGS(2013)Non‐indigenous Aquatic Species Database. U.S. Geological Survey.http://nas.er.usgs.gov/Accessed online December 2013.

10.3354/meps09949

10.1007/978-0-387-87458-6

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Journal of Animal Ecology

Tập 83 Số 6

1451-1460

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