LESS GROWTH WITH MORE FOOD - HOW INSECT-PREY AVAILABILITY CHANGES COLONY DEMOGRAPHICS IN THE ANT, CAMPONOTUS-FLORIDANUS
LESS GROWTH WITH MORE FOOD - HOW INSECT-PREY AVAILABILITY CHANGES COLONY DEMOGRAPHICS IN THE ANT, CAMPONOTUS-FLORIDANUS
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DOI：
10.1016/0022-1910(91)90004-j
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发表时间：
1991-01-01
影响因子：
2.2
通讯作者：
NONACS, P
中科院分区：
文献类型：
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作者：
NONACS, P
殖民地的Camponotus floridanus保持饮食与三个级别的昆虫猎物。越多的昆虫对蜂王影响的性状，如增加卵数，总卵窝生物量和幼虫数，或降低单个卵的平均重量总是有线性效应。皇后一贯的昆虫蛋白质和营养物质的反应，似乎是相对不变的行为。然而，工人影响的性状，如幼虫和总的育雏生物量和蛹的数量，是更复杂的殖民地增长最快的中间水平的昆虫蛋白质。在蚂蚁/灰蝶共生中也有类似的结果，其中倾向于产生较少氨基酸的毛虫的菌落变大，以及其他社会昆虫的例子表明，幼虫在菌落中具有多种功能，其中之一可能是作为营养储存容器，在需要时被吃掉。从一项对社会性昆虫数据的调查来看，同类相食在殖民地中似乎比以前所认识的更为普遍。然而，对于一个多功能假说来解释观察到的群体增长现象，这意味着成年工人支付生存成本，以维持额外的育雏。这种权衡是否真的发生，对未来的研究应该是相当有意义的。
Colonies of Camponotus floridanus were maintained on diets with three levels of access to insect prey. More insects always had linear effects on queen-influenced traits, such as increasing egg number, total egg clutch biomass and larval number, or decreasing the mean weight of individual eggs. Queens responded consistently to insect protein and nutrients and appeared to be relatively invariant in behaviour. However, worker-influenced traits, such as larval and total brood biomass and pupal numbers, were more complicated in that colonies grew fastest on intermediate levels of insect protein. Similar results in an ant/lycaenid mutualism, where colonies tending fewer amino acid-producing caterpillars grew larger as well as other social insect examples suggest that larvae serve multiple functions in a colony, one of which may be as nutrient storage vessels to be cannibalized when needed. From a survey of social insect data, cannibalism appears to be more prevalent in colonies than previously appreciated. However, for a multiple-function hypothesis to explain observed colony growth phenomena, it implies that adult workers pay a survival cost to maintain extra brood. Whether such trade-offs do occur should be of considerable interest for future research.