Arid
DOI10.1007/s00265-017-2333-1
The ecological and genetic basis of annual worker production in the desert seed harvesting ant, Veromessor pergandei
Kwapich, Christina L.1; Gadau, Juergen1,2; Hoelldobler, Bert1,3
通讯作者Kwapich, Christina L.
来源期刊BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
ISSN0340-5443
EISSN1432-0762
出版年2017
卷号71期号:8
英文摘要

Colony size is an important predictor of annual survival and reproduction in social insects. By tracking monthly forager turn over, we measured the size-specific production rates necessary to counteract forager mortality in wild Veromessor pergandei colonies. Between 31,180 and 237,980 individuals appeared as foragers annually, representing an eightfold difference in production between neighboring nests. Highly productive colonies housed 26,000 foragers at one time, turned over 34,000 foragers in a single month, and produced 470 g of worker biomass during the year. Each forager population turned over approximately 20 times during the year, cumulatively returning 3.4 kg of biomass per hectare (with 14 nests per hectare). Forager longevity was not influenced by forager number, season, or pressure from neighboring conspecifics. Genotyping at three microsatellite loci revealed that all colonies contained a single queen and one to seven patrilines (mean mobserved = 3.8; me = 2.56). The most productive colonies had significantly fewer patrilines, a larger peak forager population, and a larger annual foraging range. Colonies varied in their ability to replace lost workers, adding anywhere from 2 to 42 new foragers per death during peak forager allo-cation. Seasonal increases in forager population size corresponded to decreases in worker body size, suggesting a trade-off during production earlier in the year. Together, these findings demonstrate how the combination of individual colony- member characteristics influence whole colony survival across multiple years.


Significance statement


The survival of an animal society can depend on its size and stability. We measured the seasonal relationships between mortality and production of new colony members, with respect to foraging range size, paternity, neighbor pressure, and body size in a desert seed harvesting ant. Mortality rate was stable across seasons, but the ability of colonies to replace dead individuals corresponded to increased foraging range size, decreased patriline number, and seasonal decreases in body size. Our findings reveal the characteristics that allow colonies to respond to worker mortality on an annual scale.


英文关键词Colony size Worker production Patriline number Ant biomass Mortality rate
类型Article
语种英语
国家USA ; Germany
收录类别SCI-E
WOS记录号WOS:000405504400001
WOS关键词SOLENOPSIS-INVICTA HYMENOPTERA ; FIRE ANT ; POGONOMYRMEX-OCCIDENTALIS ; MESSOR-PERGANDEI ; COLONY SIZE ; SOCIAL INSECT ; FORMICIDAE ; QUEENS ; CASTE ; POLYMORPHISM
WOS类目Behavioral Sciences ; Ecology ; Zoology
WOS研究方向Behavioral Sciences ; Environmental Sciences & Ecology ; Zoology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197770
作者单位1.Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA;
2.Univ Munster, Inst Evolut & Biodivers, Munster, Germany;
3.Univ Wurzburg, Biozentrum, Wurzburg, Germany
推荐引用方式
GB/T 7714
Kwapich, Christina L.,Gadau, Juergen,Hoelldobler, Bert. The ecological and genetic basis of annual worker production in the desert seed harvesting ant, Veromessor pergandei[J]. Arizona State University,2017,71(8).
APA Kwapich, Christina L.,Gadau, Juergen,&Hoelldobler, Bert.(2017).The ecological and genetic basis of annual worker production in the desert seed harvesting ant, Veromessor pergandei.BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY,71(8).
MLA Kwapich, Christina L.,et al."The ecological and genetic basis of annual worker production in the desert seed harvesting ant, Veromessor pergandei".BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY 71.8(2017).
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