Increased host aggression as an induced defense against slave-making ants.
Increased host aggression as an induced defense against slave-making ants.
复制标题
DOI：
10.1093/beheco/arq191
复制
发表时间：
2011-03
期刊：
影响因子：
--
通讯作者：
Foitzik S
中科院分区：
文献类型：
--
作者：
Pamminger T;Scharf I;Pennings PS;Foitzik S
造奴蚁通过定期袭击降低了周围宿主蚁群的适应性，造成了后代的损失，并且经常造成蚁后和工蚁的死亡。因此，寄主对奴隶的袭击产生了防御，比如对社会寄生虫的特定识别和攻击，事实上，我们表明寄主蚂蚁对奴隶制造者的反应比对非寄生虫竞争者的反应更强烈。永久性的行为防御可能代价高昂，如果社会寄生虫的影响随时间和空间的变化而变化，只有在奴隶制造者被发现后才会表达的诱导防御可能是适应性的。我们首次证明了一种针对造奴蚂蚁的诱导防御：来自造奴者Protomognathus americanus的线索在Temnothorax宿主蚂蚁中引起了一种非特异性但持久的行为反应。在巢内与死去的奴隶发生5分钟的接触，会提高长纹田鼠宿主群体的攻击水平。相反，与非寄生竞争者的接触不会引起对非巢伴侣的攻击反应。如果奴隶制造者的遭遇可靠地预示着即将到来的攻击，并且如果攻击增加了战后的存活率，那么增加的攻击性可以是适应性的。宿主的攻击性在3天内升高，表明宿主蚂蚁有能力记住遇到的寄生虫。两周后，这种反应消失了，可能是因为那时攻击性增加的好处抵消了与之相关的潜在成本。
Slave-making ants reduce the fitness of surrounding host colonies through regular raids, causing the loss of brood and frequently queen and worker death. Consequently, hosts developed defenses against slave raids such as specific recognition and aggression toward social parasites, and indeed, we show that host ants react more aggressively toward slavemakers than toward nonparasitic competitors. Permanent behavioral defenses can be costly, and if social parasite impact varies in time and space, inducible defenses, which are only expressed after slavemaker detection, can be adaptive. We demonstrate for the first time an induced defense against slave-making ants: Cues from the slavemaker Protomognathus americanus caused an unspecific but long-lasting behavioral response in Temnothorax host ants. A 5-min within-nest encounter with a dead slavemaker raised the aggression level in T. longispinosus host colonies. Contrarily, encounters with nonparasitic competitors did not elicit aggressive responses toward non-nestmates. Increased aggression can be adaptive if a slavemaker encounter reliably indicates a forthcoming attack and if aggression increases postraid survival. Host aggression was elevated over 3 days, showing the ability of host ants to remember parasite encounters. The response disappeared after 2 weeks, possibly because by then the benefits of increased aggression counterbalance potential costs associated with it.
登录
查看更多内容
影响因子：
2.5
作者：
ALLOWAY, TM
通讯作者：
ALLOWAY, TM
影响因子：
2.1
作者：
Hammill, E.;Rogers, A.;Beckerman, A. P.
通讯作者：
Beckerman, A. P.
影响因子：
4.8
作者：
Teplitsky, Celine;Laurila, Anssi
通讯作者：
Laurila, Anssi
DOI：
10.1098/rspb.1979.0081
发表时间：
1979-01-01
期刊：
PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子：
--
作者：
DAWKINS, R;KREBS, JR
通讯作者：
KREBS, JR
影响因子：
2.9
作者：
Hazel, W;Smock, R;Lively, CM
通讯作者：
Lively, CM