FISH PREDATION AND BENTHIC COMMUNITY STRUCTURE - THE ROLE OF OMNIVORY AND HABITAT COMPLEXITY

被引:390
作者
DIEHL, S
机构
关键词
BENTHOS; COMMUNITY STRUCTURE; DIVERSITY; HABITAT COMPLEXITY; LITTORAL; MACROPHYTES; OMNIVORY; PELAGIC; PERCA-FLUVIATILIS; PREDATION; PREDATORY INVERTEBRATES; SIALIS-LUTARIA;
D O I
10.2307/1940017
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
In population models, omnivorous predation (i.e., predation on > 1 trophic level) generally has a destabilizing influence, whereas habitat heterogeneity tends to stabilize both predatory and competitive interactions. I experimentally evaluated the impact of a native omnivorous predator and of habitat structural complexity on the structure of a freshwater littoral macroinvertebrate community. Perch (Perca fluviatilis) were stocked at three densities (no fish, and low and high natural densities) into pond enclosures with dense submerged vegetation present or absent. Macroinvertebrate abundance, biomass, size structure, and diversity as well as gut contents of perch were monitored over a 2-mo summer period. Perch consumed both predatory and nonpredatory invertebrates except molluscs. In vegetation, perch consumed macroinvertebrates almost exclusively during the whole experiment, whereas in the absence of vegetation, perch successively increased their consumption of microcrustaceans. The biomass of predatory invertebrates and the abundance of the dominant predatory invertebrate Sialis lutaria (Insecta: Megaloptera) decreased with increasing perch density in both vegetation treatments. In contrast, perch density had no effect on the biomass of nonmolluscan herbivores and detritivores. Vegetation increased the biomass of all macroinvertebrates and tended to delay the negative effect of perch on predatory invertebrates. Perch density had a negative effect on the mean size of total nonmolluscan macroinvertebrates, but not of predatory invertebrates and nonmolluscan herbivores/detritivores considered separately. While perch density had an effect on the diversity (Shannon evenness and Shannon diversity) of only nonmolluscan macroinvertebrates (i.e., potential prey), vegetation had a positive effect on species richness (but not on evenness) of all macroinvertebrates. The results suggest that perch disproportionally preyed on predatory invertebrates, but that characteristics other than size per se were responsible for their higher vulnerability to perch. Perch may have affected nonmolluscan herbivores/detritivores simultaneously through direct consumption and through indirect release from invertebrate predation, which could explain the lack of a perch effect on nonmolluscan herbivores/detritivores. Complex interactions between the omnivorous predator, intermediate consumers, and resource species (macroinvertebrate herbivores and detritivores) may explain the relationship between perch density and macroinvertebrate diversity. The reduction in foraging efficiency of perch in submerged vegetation, and the observed diet shift of perch towards microcrustaceans when predatory invertebrates were still fairly abundant, suggest that relatively large predatory invertebrates were still fairly abundant, suggest that relatively large predatory invertebrates can coexist with fish in the littoral of lakes to a higher extent than in the pelagic zone. Predatory invertebrates may thus play a more important role in food web dynamics of littoral than of pelagic communities.
引用
收藏
页码:1646 / 1661
页数:16
相关论文
共 50 条
[21]   Benthic community composition of temperate mesophotic ecosystems (TMEs) in New Zealand: sponge domination and contribution to habitat complexity [J].
Harris, Benjamin ;
Davy, Simon K. ;
Bell, James J. .
MARINE ECOLOGY PROGRESS SERIES, 2021, 671 :21-43
[22]   The role of habitat structural complexity on macro-epibiont community structure in a subtropical mangrove forest [J].
Alireza Mahalati ;
Ali Nasrolahi .
Marine Biology, 2025, 172 (6)
[23]   Fish community structure, habitat complexity, and soundscape characteristics of patch reefs in a tropical, back-reef system [J].
Lyon, R. Patrick ;
Eggleston, David B. ;
Bohnenstiehl, DelWayne R. ;
Layman, Craig A. ;
Ricci, Shannon W. ;
Allgeier, Jacob E. .
MARINE ECOLOGY PROGRESS SERIES, 2019, 609 :33-48
[24]   Heterogeneity in body size and habitat complexity influence community structure [J].
Carter, Shannon K. ;
Vodopich, Darrell ;
Crumrine, Patrick W. .
JOURNAL OF FRESHWATER ECOLOGY, 2018, 33 (01) :239-249
[25]   Habitat-mediated survival of newly settled red king crab in the presence of a predatory fish: Role of habitat complexity and heterogeneity [J].
Stoner, Allan W. .
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 2009, 382 (01) :54-60
[26]   Habitat biodiversity as a determinant of fish community structure on coral reefs [J].
Messmer, Vanessa ;
Jones, Geoffrey P. ;
Munday, Philip L. ;
Holbrook, Sally J. ;
Schmitt, Russell J. ;
Brooks, Andrew J. .
ECOLOGY, 2011, 92 (12) :2285-2298
[27]   THE FISH COMMUNITY STRUCTURE IN TJEUKEMEER IN RELATION TO FISHERY AND HABITAT UTILIZATION [J].
LAMMENS, EHRR ;
VANDENSEN, WLT ;
KNIJN, R .
JOURNAL OF FISH BIOLOGY, 1990, 36 (06) :933-945
[28]   Ultraviolet light influences habitat preferences in a fish under predation risk [J].
Rick, Ingolf P. ;
Bakker, Theo C. M. .
EVOLUTIONARY ECOLOGY, 2010, 24 (01) :25-37
[29]   Effects of a nuclear power plant thermal discharge on habitat complexity and fish community structure in Ilha Grande Bay, Brazil [J].
Teixeira, Tatiana Pires ;
Neves, Leonardo Mitrano ;
Araujo, Francisco Gerson .
MARINE ENVIRONMENTAL RESEARCH, 2009, 68 (04) :188-195
[30]   Interactive effects of pesticide exposure and habitat structure on behavior and predation of a marine larval fish [J].
Violet Compton Renick ;
Todd W. Anderson ;
Steven G. Morgan ;
Gary N. Cherr .
Ecotoxicology, 2015, 24 :391-400