Pregled bibliografske jedinice broj: 401259
Low faunal abundance and diversity in Mediterranean seagrass is linked to the segregation of seagrass resident predators and their potential prey
Low faunal abundance and diversity in Mediterranean seagrass is linked to the segregation of seagrass resident predators and their potential prey // Book of Abstracts of ASLO Aquatic Sciences Meeting 2009
Nica: ASLO, Advancing the Science of Limnology and Oceanography, 2009. str. 142-142 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 401259 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Low faunal abundance and diversity in Mediterranean seagrass is linked to the segregation of seagrass resident predators and their potential prey
Autori
Kruschel, Claudia ; Schultz, Stewart ; Bakran-Petricioli, Tatjana
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, 142-142
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
seagrass superiority; resident predation; Adriatic Sea
Sažetak
Seagrasses are considered superior habitats for fish, especially juveniles, seeking refuge from predation provided by structural complexity, while leading to avoidance of less complex and riskier habitats. However, predation risk is mediated by predation mode and the numerical response of predators and prey. Censusing fauna in geo-/video-referenced scuba transects in a Mediterranean lagoon revealed that mosaic-like distributed habitats (rocky-algal, seagrass, bare sediments) had unique faunal assemblages, equally delineated by the kind of 3D structure and its presence/absence. Seagrass harbored lowest faunal abundance and diversity and was avoided by most taxa ; the opposite was true for bare sediments. Two common ambushing/stalking predators strongly preferred seagrass, while bare sediments were highly preferred by small and juvenile fish. The segregation of predator and prey on a small scale (seagrass vs. neighboring habitats) was highly predictive of faunal abundances on larger scales. These results demonstrate how the relative importance of different predation modes can reduce or increase the value of alternative habitats and how seagrass resident predation can exclude potential prey (especially juvenile fish) ; thereby negatively affecting total faunal abundance and diversity in seagrass.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
POVEZANOST RADA
Projekti:
269-0000000-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA
119-0362975-1226 - Istraživanje ugroženih staništa morem preplavljenog krša u obalnom moru Hrvatske (Bakran-Petricioli, Tatjana, MZOS ) ( CroRIS)
269-0362975-3174 - EKOLOGIJA I PRAĆENJE STANJA BENTOSKIH ŽIVOTNIH ZAJEDNICA HRVATSKOGA JADRANA (Schultz, Stewart, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb,
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