The energetic costs of fighting in the house cricket, Acheta domesticus L
The energetic costs of fighting in the house cricket, Acheta domesticus L
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DOI：
10.1093/beheco/8.1.28
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发表时间：
1997-01-01
影响因子：
2.4
通讯作者：
Hack, MA
中科院分区：
文献类型：
--
作者：
Hack, MA
执行竞争行为或策略的成本将对个人的成本累积率、策略的进化稳定性（如果用作评估信号）以及其在比赛行为编排中的使用模式产生影响。很少有研究试图量化战斗成本，特别是在能量消耗方面。流通呼吸测量显示，雄性家蟋蟀在战斗时可以以相对较高的速度消耗能量（超过休息水平的八倍），具体取决于所执行的特定策略。声音信号（发声）是七种已测量的对抗策略中成本最低的，而与对手摔跤是能量成本最高的策略，其消耗的氧气净速率是发声的 40 倍以上。对手使用低成本战术的频率高于高成本战术，这为基于能量成本的不断升级的战术惯例提供了证据。一些策略的适度能量消耗表明它们可以作为评估摔跤能力的可靠信号。对于比赛获胜者和失败者来说，每次比赛的净能源成本都随着比赛持续时间线性增加，但获胜者往往比失败者在每场比赛中消耗更多的能量。讨论了战斗时消耗的能量可能对健康产生的影响。本研究的结果表明，能量消耗是Acheta Domesticus 竞争策略的重要成本塑造。
The cost of performing an agonistic behavior, or tactic, will have consequences for an individual's rate of cost accrual, the tactic's evolutionary stability if used as an assessment signal, and its pattern of use in the behavioral choreography of a contest. Few studies have attempted to quantify the costs of fighting, particularly with regard to energy expenditure. Flow-through respirometry revealed that house cricket males can expend energy at relatively high rates when fighting (more than eight times resting levels) depending on the,particular tactic performed. Acoustic signalling (stridulation) constituted the least costly of seven measured agonistic tactics, while wrestling with an opponent, the most energetically costly tactic, consumed oxygen at a net rate more than 40 times that of stridulation. Low-cost tactics are used by opponents more frequently than more costly tactics, providing evidence for an escalating tactical convention based on energetic costs. The moderate energetic cost of some tactics suggests they may function as reliable signals in the assessment of wrestling ability. Net energy costs per contest increased linearly with contest duration for both contest winners and losers, but winners tended to expend more energy per contest than losers. The likely fitness effects of energy expended while fighting are discussed. The results of this study indicate that energy expenditure is an important cost shaping contest strategies in Acheta domesticus.