کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2840811 1165358 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Circadian resonance in the development of two sympatric species of Camponotus ants
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش حشره شناسی
پیش نمایش صفحه اول مقاله
Circadian resonance in the development of two sympatric species of Camponotus ants
چکیده انگلیسی

Circadian clocks provide adaptive advantage to their owners by timing their behavioural and physiological processes in accordance with the external environment. Here we report the results of our study aimed at investigating the effect of the interaction between circadian timing system and environmental light/dark (LD) cycles on pre-adult development time of two sympatric species of Componotus ants, the night active Componotus compressus, and the day active C. paria—both species develop in dark underground nests, under fairly constant conditions of humidity and temperature. We estimated pre-adult developmental durations in these ants under three different LD cycles (T20 = 10 h of light and 10 h of darkness, T24 = 12 h of light and 12 h of darkness, and T28 = 14 h of light and 14 h of darkness). We find that both species exhibit significantly faster pre-adult development under T24 compared to T20 and T28. Given that faster development in insects is considered as an adaptive strategy these results can be taken to suggest that Camponotus ants accrue greater fitness advantage under T24 compared to T20 and T28 LD cycles, possibly due to “circadian resonance” between circadian timing system and environmental LD cycle. Thus our study reveals that boreal species of ants could serve as a case for the study of adaptive significance of circadian organization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 56, Issue 11, November 2010, Pages 1611–1616
نویسندگان
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