COLONY REPRODUCTION AND ARBOREAL LIFE IN THE PONERINE ANT GNAMPTOGENYS MENADENSIS (HYMENOPTERA : FORMICIDAE)
COLONY REPRODUCTION AND ARBOREAL LIFE IN THE PONERINE ANT GNAMPTOGENYS MENADENSIS (HYMENOPTERA : FORMICIDAE)
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波内林蚁 GNAMPTOGENYS MENADENSIS 的群体繁殖和树栖生活（膜翅目：蚁科）
DOI：
10.1163/156854298x00219
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
J. Billen
中科院分区：
文献类型：
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作者：
B. Gobin;C. Peeters;J. Billen
Gnamptogenys menadensis是一种印度尼西亚的寄生虫，只生活在树上。觅食者在灌木和树木的枝叶上寻找猎物和甜蜜的分泌物，但从不在地面上行走。它在预先存在的树洞中筑巢，这些树洞用有机材料密封。有几个因素有利于殖民地繁殖的碎片：可用的巢址是丰富的，巢结构只代表一个小投资的劳动力，和巢不能扩大，诱导巢移民或多巢的殖民地的大小增长。群体分裂机制是使工蚁能够取代蚁后的先决条件之一。我们发现，在所研究的种群（苏拉威西岛）中，大多数殖民地（95%）是无女王的，并通过gamergates（交配的工人产下生殖卵）繁殖。尽管如此，偶尔也会产生女王，5%的巢穴包含一个单一的生殖女王。由于专性的树栖生活，有翅女王生产似乎仍然是一个罕见的策略，除了萌芽，因为只有独立的创始女王可以殖民新的植被补丁。
Gnamptogenys menadensis is an Indonesian ponerine ant that is exclusively arboreal. Foragers hunt for prey and sweet secretions on the branches and leaves of shrubs and trees, but never walk on the ground. It nests in pre-existing tree cavities which are sealed with a lining of organic material. Several factors facilitate colony reproduction by fragmentation: available nest sites are plentiful, nest structure represents only a minor investment of labour, and nests cannot be enlarged, inducing nest emigration or polydomy as colonies grow in size. A mechanism of colony fragmentation is one of the preadaptations to enable the replacement of queens by worker reproductives. We found that the majority of colonies (95%) in the studied population (Sulawesi) are queenless, and reproduce through gamergates (mated workers laying reproductive eggs). Nevertheless, queens can occasionally be produced, and 5% of nests contained a single reproductive queen. Due to obligate arboreal life, alate queen production seems to remain an infrequent strategy in addition to budding, since only independent founding queens can colonise new patches of vegetation.