DOI: 10.1016/j.marpolbul.2017.10.015
Scopus记录号: 2-s2.0-85033437712
论文题名: Food selection of a generalist herbivore exposed to native and alien seaweeds
作者: Noè S. ; Badalamenti F. ; Bonaviri C. ; Musco L. ; Fernández T.V. ; Vizzini S. ; Gianguzza P.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期: 2 起始页码: 469
结束页码: 473
语种: 英语
英文关键词: Biological invasion
; Caulerpa spp.
; Feeding choice
; Mediterranean Sea
; Sea urchin
Scopus关键词: Algae
; Mammals
; Mixtures
; Shellfish
; Value engineering
; Biological invasion
; Caulerpa spp
; Caulerpa taxifolia
; Exposed to
; Inter-specific competitions
; Mediterranean sea
; Sea urchin
; Seaweed
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Understanding which factors influence the invasion of alien seaweed has become a central concern in ecology. Increasing evidence suggests that the feeding preferences of native herbivores influence the success of alien seaweeds in the new community. We investigated food selection of a generalist native grazer Paracentrotus lividus, in the presence of two alien seaweeds (Caulerpa cylindracea and Caulerpa taxifolia var. distichophylla) and two native seaweeds (Dictyopteris membranacea and Cystoseira compressa). Sea urchins were fed with six experimental food items: C. cylindracea, C. taxifolia var. distichophylla, a mixture of C. cylindracea and C. taxifolia var. distichophylla, D. membranacea, C. compressa and a mixture of D. membranacea and C. compressa. P. lividus ingested all the combinations of food offered, though it preferentially consumed the alien mixture, C. cylindracea and D. membranacea. The alien C. taxifolia var. distichophylla was consumed significantly less than the other food items and, interestingly, it was ingested in a greater amount when mixed with C. cylindracea than when on its own. This finding suggests that C. taxifolia var. distichophylla may become vulnerable to sea urchin grazing when it grows intermingled with C. cylindracea, which does not gain immediate protection from the presence of the very low palatable congeneric seaweed. The present study highlights the potential role of native grazers to indirectly affect the interspecific competition between the two alien seaweeds in the Mediterranean Sea. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88377
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Department of Earth and Marine Science, University of Palermo, CoNISMa, Via Archirafi 18, Palermo, Italy; National Research Council (CNR)—Institute of Coastal Marine Environment (IAMC), Via G. Da Verrazzano 17, Castellammare del Golfo, TP, Italy; Stazione Zoologica Anton Dohrn, Integrated Marine Ecology Department, Villa Comunale, Naples, Italy; National Research Council (CNR)—Institute of Coastal Marine Environment (IAMC), Calata Porta di Massa, Naples, Italy
Recommended Citation:
Noè S.,Badalamenti F.,Bonaviri C.,et al. Food selection of a generalist herbivore exposed to native and alien seaweeds[J]. Marine Pollution Bulletin,2018-01-01,129(2)