PREDATION PRESSURE AND GASTROPOD FORAGING - A TROPICAL-TEMPERATE COMPARISON
PREDATION PRESSURE AND GASTROPOD FORAGING - A TROPICAL-TEMPERATE COMPARISON
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DOI：
10.1111/j.1558-5646.1981.tb04965.x
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发表时间：
1981-01-01
期刊：
影响因子：
3.3
通讯作者：
LEVINGS, SC
中科院分区：
文献类型：
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作者：
BERTNESS, MD;GARRITY, SD;LEVINGS, SC
热带地区对沿岸的腹足动物的破壳捕食大于温带地区。对热带腹足类的捕食压力增加是由于一个专门在热带和亚热带沃茨发现的贝壳破碎鱼类的公会。增加捕食似乎修改的热带腹足类的活动模式，缩短他们的觅食时间和生产纬度差异的沿岸的蜗牛的食性。[捕食强度实验中使用的来自巴拿马和新英格兰[美国]的蜗牛物种：新英格兰：Thais lapillus，Littorina littorea和L. obtusata;巴拿马：糙肋螺（Nerita scabricosta）、短齿螺（Atriina brevidentata）、短齿螺（T.甜瓜和T. triangularis）。
Shell-crushing predation on littoral gastropods in a tropical area is greater than that in a temperate area. Increased predation pressure on the tropical gastropods is due to a guild of shell-crushing fishes found exclusively in tropical and subtropical waters. Increased predation appears to modify the activity patterns of the tropical gastropods, curtailing their foraging time and producing latitudinal differences in the feeding habits of littoral snails. [Snail species from Panama and New England [USA] used in the predation intensity experiment: New England: Thais lapillus, Littorina littorea and L. obtusata; Panama: Nerita scabricosta, Acanthina brevidentata, T. melones and T. triangularis.].