Age-specific and lifetime behavior patterns in Drosophila melanogaster and the Mediterranean fruit fly, Ceratitis capitata
Age-specific and lifetime behavior patterns in Drosophila melanogaster and the Mediterranean fruit fly, Ceratitis capitata
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DOI：
10.1016/j.exger.2005.09.014
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发表时间：
2006-01-01
影响因子：
3.9
通讯作者：
Tseng, YK
中科院分区：
文献类型：
--
作者：
Carey, JR;Papadopoulos, N;Tseng, YK
从羽化到死亡，每天2小时内每隔10分钟记录一次黑腹果蝇个体（两性）和头角虫个体（雄性）的行为模式，包括前者的行走、梳理、进食、飞行和休息，后者的行走、鸣叫（信号）、仰卧（倒立）和休息。结果表明，除整理毛发外，黑腹扁蝇的行为模式具有年龄特异性，并且几种行为的频率（例如，黑腹扁蝇的仰卧，黑腹扁蝇的行走和休息）与死亡时间相关。这是第一组报告个体一生中一系列行为类别的年龄模式的研究，因此也是第一个系统地记录老年个体行为的研究。我们认为，在衰老过程中出现的新的和独特的行为（如仰卧）被称为退行性行为，这不仅是为了区分它们与传统的行为分类（先天的、习得的），而且反映了它们的突发性。
Patterns of behavior were recorded every 10 min during a 2-h period each day from eclosion to death for individual Drosophila melanogaster (both sexes) and Ceratitis capitata (males-only) including walking, preening, feeding, flying, and resting for the former species, and walking, calling (signaling), supine (upside-down), and resting in the latter. Results reveal that, with the exception of preening in D. melanogaster, behavioral patterns are age-specific and the frequency of several behaviors (e.g. supine in medfly; walking and resting in D. melanogaster) are correlated with time-to-death. This is the first set of studies to report the age patterns over a range of behavioral categories throughout the lives of individuals and thus the first that systematically documents the behavior of individuals at advanced ages. We suggest that the new and unique behaviors (e.g. supine) that emerge from the aging process be referred to as degenerative behaviors, not only to distinguish them from the conventional behavioral classifications (innate, learned), but also to reflect their emergent nature.