DOI: 10.1016/j.palaeo.2016.03.020
论文题名: Subaerial naticid gastropod drilling predation by Natica tigrina on the intertidal molluscan community of Chandipur, Eastern Coast of India
作者: Pahari A. ; Mondal S. ; Bardhan S. ; Sarkar D. ; Saha S. ; Buragohain D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 451 起始页码: 110
结束页码: 123
语种: 英语
英文关键词: Cost-benefit analysis
; Intertidal flat
; Molluscan prey
; Naticid predator
; Subaerial hunting
英文摘要: Chandipur intertidal flat in eastern coast of India is a killing field. The vast stretch of intertidal habitat opens up during the low tide, and is monopolized by a single naticid species which preys extensively on intertidal taxa. The predator, Natica tigrina, wades through the soft sediments and ambushes on epi- or infaunal prey.There were reports on naticid subaerial hunting, where the workers made vivid observations, but only in few instances quantified different aspects of predation. Detailed quantitative analyses of the present study revealed that N. tigrina attacks opportunistically on all infaunal and epifaunal intertidal bivalve and gastropod prey taxa. Drilling frequencies ranged from 9.70% to 67.67% with no apparent relation with relative abundances of the taxa. High drilling frequency on conspecific predation perhaps suggested elimination of the potential competitor as well as a profitable prey. Behavioral data of predation, i.e., stereotypy of site and size of drillholes on prey shells and low prey effectiveness indicated that the predator was highly efficient. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68434
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geological Sciences, Jadavpur University, Kolkata, India; Department of Geology, University of Calcutta, Kolkata, India; Department of Applied Geology, Indian School of Mines, Dhanbad, India
Recommended Citation:
Pahari A.,Mondal S.,Bardhan S.,et al. Subaerial naticid gastropod drilling predation by Natica tigrina on the intertidal molluscan community of Chandipur, Eastern Coast of India[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,451