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Pregled bibliografske jedinice broj: 401268

Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon


Schultz, Stewart; Kruschel, Claudia
Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon // Book of Abstracts of ASLO Aquatic Sciences Meeting 2009
Nica: ASLO, Advancing the Science of Limnology and Oceanography, 2009. str. 240-240 (predavanje, međunarodna recenzija, sažetak, znanstveni)


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Naslov
Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon

Autori
Schultz, Stewart ; Kruschel, Claudia

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of ASLO Aquatic Sciences Meeting 2009 / - Nica : ASLO, Advancing the Science of Limnology and Oceanography, 2009, 240-240

Skup
ASLO Aquatic Sciences Meeting 2009

Mjesto i datum
Nica, Francuska, 25.01.2009. - 30.01.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
top-down control; demersal macrofauna; abundance and diversity

Sažetak
Top-down theories of community organization predict that mobile demersal macrofauna reach maximum abundance and diversity in structurally complex habitat, such as seagrass, which obstructs the vision and movement of predators. This prediction, however, oversimplifies by assuming a fixed predation mode and stable densities of predators and prey. If predators are mobile and can exploit structured habitat as ambush cover, then they can exclude most other macrofauna from structured patches. We assayed predator behavior and predation efficiency in fish communities in seagrass and neighboring bare sediment patches in experimental tanks and in nature in the Novigrad Sea, Croatia. We found (1) large ambush predators predominated in seagrass, and smaller chase-attack predators on bare sediment ; (2) overall fish abundance was fourfold higher on bare sediment than in seagrass ; (3) rates of biting, ingestion, and attacking were greatest in seagrass ; and (4) ambush predators were more successful and aggressive than chase-attack predators. Our results are consistent with the conclusion that seagrass has a higher predation risk due to large, aggressive ambush predators, which have forced most small/juvenile fish out of seagrass and onto neighboring bare sediments.

Izvorni jezik
Engleski

Znanstvena područja
Biologija



POVEZANOST RADA


Projekti:
269-0000000-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA
269-0362975-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA (Schultz, Stewart, MZOS ) ( CroRIS)

Ustanove:
Sveučilište u Zadru

Profili:

Avatar Url Stewart Schultz (autor)


Citiraj ovu publikaciju:

Schultz, Stewart; Kruschel, Claudia
Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon // Book of Abstracts of ASLO Aquatic Sciences Meeting 2009
Nica: ASLO, Advancing the Science of Limnology and Oceanography, 2009. str. 240-240 (predavanje, međunarodna recenzija, sažetak, znanstveni)
Schultz, S. & Kruschel, C. (2009) Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon. U: Book of Abstracts of ASLO Aquatic Sciences Meeting 2009.
@article{article, author = {Schultz, Stewart and Kruschel, Claudia}, year = {2009}, pages = {240-240}, keywords = {top-down control, demersal macrofauna, abundance and diversity}, title = {Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon}, keyword = {top-down control, demersal macrofauna, abundance and diversity}, publisher = {ASLO, Advancing the Science of Limnology and Oceanography}, publisherplace = {Nica, Francuska} }
@article{article, author = {Schultz, Stewart and Kruschel, Claudia}, year = {2009}, pages = {240-240}, keywords = {top-down control, demersal macrofauna, abundance and diversity}, title = {Habitat structure and predation mode predict community assemblages in the shallow benthos of an Adriatic lagoon}, keyword = {top-down control, demersal macrofauna, abundance and diversity}, publisher = {ASLO, Advancing the Science of Limnology and Oceanography}, publisherplace = {Nica, Francuska} }




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