Interaction of nemertines and their prey on tidal flats

作者: Martin Thiel , Karsten Reise

DOI: 10.1016/0077-7579(93)90006-E

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摘要: Abstract Two common nemertines of the European Wadden Sea, Lineus viridis and Amphiporus lactifloreus, occur preferentially in clusters mussels, spread over sedimentary flats upper intertidal near island Sylt. The heteronemertine L. preys mainly on polychaete Nereis diversicolor. hoplonemertine A. lactifloreus feeds almost exclusively amphipod Gammarus locusta. Abundance both predators their respective prey field showed inverse relationships. Experimentally increased numbers mussels caused a gradual decrease nereid abundance sediment underneath period 1 month, suggesting that losses individuals were by capture. followed an escape response gammarids from within 2 d. In aquaria, species exhibited prolonged swimming activity when lurked at bottom. We conclude behaviour N. diversicolor may be only effective during its migrant phases, while G. locusta is permanently alert to avoid encounters with predator. This refuging endobenthic has strong implications distribution, actual consumption relatively modest. Enclosure experiments aquaria lead overestimates capture not accounted for.

参考文章(48)
Karsten Reise, PREDATION PRESSURE AND COMMUNITY STRUCTURE OF AN INTERTIDAL SOFT-BOTTOM FAUNA Biology of Benthic Organisms#R##N#11th European Symposium on Marine Biology, Galway, October 1976. pp. 513- 519 ,(1977) , 10.1016/B978-0-08-021378-1.50057-9
William Carmichael. McIntosh, A Monograph Of The British Annelids. ... ,(2011)
Th. Bartolomaeus, Zur Fortpflanzungsbiologie von Lineus viridis (Nemertini) Helgoländer Meeresuntersuchungen. ,vol. 38, pp. 185- 188 ,(1984) , 10.1007/BF01999965
I. Bartsch, Zur Nahrungsaufnahme von Tetrastemma melanocephalum (Nemertini) Helgoland Marine Research. ,vol. 25, pp. 326- 331 ,(1973) , 10.1007/BF01611201
Sarah Ann Woodin, Refuges, Disturbance, and Community Structure: A Marine Soft-Bottom Example Ecology. ,vol. 59, pp. 274- 284 ,(1978) , 10.2307/1936373
JJ Beukema, Influence of the predatory polychaete Nephtys hombergii on the abundance of other polychaetes Marine Ecology Progress Series. ,vol. 40, pp. 95- 101 ,(1987) , 10.3354/MEPS040095
Andrew Sih, The Behavioral Response Race Between Predator and Prey The American Naturalist. ,vol. 123, pp. 143- 150 ,(1984) , 10.1086/284193
John J. McDermott, The role of hoplonemerteans in the ecology of seagrass communities Hydrobiologia. ,vol. 156, pp. 1- 11 ,(1988) , 10.1007/978-94-009-4063-5_1
C. M. Child, The Habits and Natural History of Stichostemma The American Naturalist. ,vol. 35, pp. 975- 1006 ,(1901) , 10.1086/278050