Unrelated helpers in a primitively eusocial wasp: is helping tailored towards direct fitness?
Unrelated helpers in a primitively eusocial wasp: is helping tailored towards direct fitness?
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DOI:
10.1371/journal.pone.0011997
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发表时间:
2010-08-06
期刊:
影响因子:
3.7
通讯作者:
Field J
中科院分区:
文献类型:
--
作者:
Leadbeater E;Carruthers JM;Green JP;van Heusden J;Field J
The paper wasp Polistes dominulus is unique among the social insects in that nearly one-third of co-foundresses are completely unrelated to the dominant individual whose offspring they help to rear and yet reproductive skew is high. These unrelated subordinates stand to gain direct fitness through nest inheritance, raising the question of whether their behaviour is adaptively tailored towards maximizing inheritance prospects. Unusually, in this species, a wealth of theory and empirical data allows us to predict how unrelated subordinates should behave. Based on these predictions, here we compare helping in subordinates that are unrelated or related to the dominant wasp across an extensive range of field-based behavioural contexts. We find no differences in foraging effort, defense behaviour, aggression or inheritance rank between unrelated helpers and their related counterparts. Our study provides no evidence, across a number of behavioural scenarios, that the behaviour of unrelated subordinates is adaptively modified to promote direct fitness interests.
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影响因子:
4.9
作者:
Henshaw, MT
通讯作者:
Henshaw, MT
影响因子:
2.9
作者:
Cant, Michael A.;Llop, Justine B.;Field, Jeremy
通讯作者:
Field, Jeremy
影响因子:
2.3
作者:
POST, DC;JEANNE, RL
通讯作者:
JEANNE, RL
DOI:
10.1098/rstb.2009.0110
发表时间:
2009-11-12
影响因子:
6.3
作者:
Field, Jeremy;Cant, Michael A.
通讯作者:
Cant, Michael A.
影响因子:
2.5
作者:
Liebert, AE;Starks, PT
通讯作者:
Starks, PT