NDLI: Habitat context influences predator interference interactions and the strength of resource partitioning

Content Provider	Springer Nature Link
Author	Hughes, A. Randall Grabowski, Jonathan H.
Copyright Year	2006
Abstract	Despite increasing evidence that habitat structure can shape predator–prey interactions, few studies have examined the impact of habitat context on interactions among multiple predators and the consequences for combined foraging rates. We investigated the individual and combined effects of stone crabs (Menippe mercenaria) and knobbed whelks (Busycon carica) when foraging on two common bivalves, the hard clam (Mercenaria mercenaria) and the ribbed mussel (Geukensia demissa) in oyster reef and sand flat habitats. Because these species co-occur across these and other estuarine habitats of varying physical complexity, this system is ideal for examining how habitat context influences foraging rates and the generality of predator interactions. Consistent with results from previous studies, consumption rates of each predator in isolation from the other were higher in the sand flat than in the more structurally complex oyster reef habitat. However, consumption by the two predators when combined surprisingly did not differ between the two habitats. This counterintuitive result probably stems from the influence of habitat structure on predator–predator interactions. In the sand-flat habitat, whelks significantly reduced their consumption of their less preferred prey when crabs were present. However, the structurally more complex oyster reef habitat appeared to reduce interference interactions among predators, such that consumption rates when the predators co-occurred did not differ from predation rates when alone. In addition, both habitat context and predator–predator interactions increased resource partitioning by strengthening predator dietary selectivity. Thus, an understanding of how habitat characteristics such as physical complexity influence interactions among predators may be critical to predicting the effects of modifying predator populations on their shared prey.
Starting Page	256
Ending Page	264
Page Count	9
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	149
Issue Number	2
e-ISSN	14321939
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-05-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Context dependency Habitat structure Oyster reef Predator dietary selectivity Predator interference Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Habitat context influences predator interference interactions and the strength of resource partitioning

Parasite modification of predator functional response

Partitioning mechanisms of Predator Interference in different Habitats

Plant patch structure influences plant fitness via antagonistic and mutualistic interactions but in different directions

One meadow for two sparrows: resource partitioning in a high elevation habitat

Functional responses modified by predator density

The effect of habitat structure on prey mortality depends on predator and prey microhabitat use

Does interspecific competition drive patterns of habitat use in desert bat communities?

Priority effects and habitat complexity affect the strength of competition

Habitat context influences predator interference interactions and the strength of resource partitioning

Similar Documents

Habitat context influences predator interference interactions and the strength of resource partitioning

Parasite modification of predator functional response

Partitioning mechanisms of Predator Interference in different Habitats

Plant patch structure influences plant fitness via antagonistic and mutualistic interactions but in different directions

One meadow for two sparrows: resource partitioning in a high elevation habitat

Functional responses modified by predator density

The effect of habitat structure on prey mortality depends on predator and prey microhabitat use

Does interspecific competition drive patterns of habitat use in desert bat communities?

Priority effects and habitat complexity affect the strength of competition

Habitat context influences predator interference interactions and the strength of resource partitioning