کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2840876 1165365 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-amplification as a source of interindividual variability: Shelter selection in cockroaches
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش حشره شناسی
پیش نمایش صفحه اول مقاله
Self-amplification as a source of interindividual variability: Shelter selection in cockroaches
چکیده انگلیسی

Although group effect and collective decisions have been described in many insect species, the behavioral mechanisms involved in the process remain poorly documented at the individual level. We examined how individual behavior depends on the environmental context and we precisely characterized the behavioral rules leading to settlement of individual cockroaches in resting site. We focused on the spatial and temporal distribution of individuals in absence of conspecifics. Using isolated adult males of the cockroach Periplaneta americana, we showed that the quality of resting sites and the duration of the settlement exerted an influence on the individual decision-making: the probability of leaving a resting site decreased with the time spent under a shelter. A numerical model derived from experimental data suggested that this simple rule of self-amplification can also account for the interindividual variability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 55, Issue 11, November 2009, Pages 976–982
نویسندگان
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