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‘Predator‐foolhardiness’ in an epidemic cicada population
Author(s) -
Nagamine Masaaki,
Itô Yosiaki
Publication year - 1980
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02513537
Subject(s) - predator , biology , outbreak , population , predation , ecology , chorus , population density , zoology , demography , virology , sociology , art , literature
Summary ‘Predator‐foolhardiness’ ( Lloyd and Dybas , 1966b) in an epidemic population of the sugarcane cicada, Mogannia minuta was tested by counting the number of successful and failed trials of hand‐capturing of adults in the centre and periphery of a heavily infested area. Males frequently failed to escape from capture in the outbreak area but they did not in the peripheral zone. Females could escape well irrespective of the density. It was considered that the ‘predator‐foolhardiness’ of males is not due to genetic differentiation through the process of outbreak but to the effect of massive chorus on the escape behaviour.