Pheromonally mediated mate attraction by males of the burying beetle Nicrophorus orbicollis: alternative calling tactics conditional on both intrinsic and extrinsic factors
Pheromonally mediated mate attraction by males of the burying beetle Nicrophorus orbicollis: alternative calling tactics conditional on both intrinsic and extrinsic factors
复制标题
DOI：
10.1093/beheco/10.5.578
复制
发表时间：
1999-09-01
影响因子：
2.4
通讯作者：
Moore, AJ
中科院分区：
文献类型：
--
作者：
Beeler, AE;Rauter, CM;Moore, AJ
雄性埋葬虫利用信息素信号吸引雌性，并能为它们发育中的后代提供父母照顾和食物资源，脊椎动物的腐肉。但即使没有腐肉，雄性也会试图吸引雌性。我们研究了影响雄性行为的因素，以寻找或吸引配偶在现场捕获和实验室饲养的Nicrophorus orbicollis，北美埋葬甲虫。我们调查了男性行为是否因男性内在（体型）和外在（拥有的资源）差异而有所不同。此外，我们还研究了个体行为的可重复性以及持有或缺乏资源对这些可重复性的影响。现场捕获和实验室饲养的个人不同的整体活动，但不是在他们的行为剧目，使研究实验室饲养的男性相关的男性个体的行为是非常一致的条件下，但塑料之间的资源条件。调用的频率（采取的姿势，表明信息素释放到AM-行为女性）取决于男性的大小时，男性没有举行的资源，但这种关系消失时，男性举行的资源。没有腐肉，较小的男性呼吁更频繁地比大男性。当举行腐肉，较小的男性减少了他们的电话，而较大的男性显着增加的频率，他们试图吸引女性，并减少了他们花在搜索的时间。因此，雄鸟的求偶行为不仅受内在因素和外在因素的影响，而且是它们之间相互作用的结果。我们认为，呼叫的变化代表替代策略的基础上的成本和利益，吸引潜在的配偶和竞争对手，这对不同大小的男性不同。
Male burying beetles attract females using a pheromonal signal and can provide parental care and a food resource, vertebrate carrion, for their developing offspring. But males attempt to attract females even when they have no carrion. We examined the factors that influence male behavior directed toward finding or attracting mates in both field-caught and laboratory-reared Nicrophorus orbicollis, a North American burying beetle. We investigated whether male behavior differed based on both intrinsic (size) and extrinsic (resources held) differences among males. Further, we examined repeatability of individual behaviors and the effect of holding or lacking resources on these repeatabilities. Field-caught and laboratory-reared individuals differed in overall activity but not in their behavioral repertoire, making studies of laboratory-reared males relevant The behavior of individual males was very consistent within a condition, but plastic between resource conditions. The frequency of calling (adopting a posture that indicates pheromone release to am-act females) depended on male size when males did not hold resources, but this relationship disappeared when males held resources. Without carrion, smaller males called more frequently than did larger males. When holding carrion, smaller males reduced their calling, whereas larger males significantly increased the frequency with which they attempted to attract females and reduced the amount of time they spent searching. Thus, calling behavior of males was conditional on not only intrinsic and extrinsic factors, but also an interaction between them. We suggest that the changes in calling represent alternative tactics based on the costs and benefits of attracting both potential mates and competitors, which differ for males of different sizes.