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2篇 您的检索式:作者名="Frederic Azemar"
    题名 作者 年代 出处 被引量
1An uneasy alliance:a nesting association between aggressive ants and equally fierce social wasps显示文摘Although the Neotropical territorially dominant arboreal ant Azteca chartifex Forel is very aggressive towards any intruder,its populous colonies tolerate the close presence of the fierce polistine wasp Polybia rejecta(F.).In French Guiana,83.33%of the 48 P.rejecta nests recorded were found side by side with those of A.chartifex.This nesting association results in mutual protection from predators(i.e.,the wasps protected from army ants;the ants protected from birds).We conducted field studies,laboratorybased behavioral experiments and chemical analyses to elucidate the mechanisms allowing the persistence of this association.Due to differences in the cuticular profiles of the two species,we eliminated the possibility of chemical mimicry.Also,analyses of the carton nests did not reveal traces of marking on the envelopes.Because ant forager flows were not perturbed by extracts from the wasps’Dufour’s and venom glands,we rejected any hypothetical action of repulsive chemicals.Nevertheless,we noted that the wasps'scraped'the surface of the upper part of their nest envelope using their mandibles,likely removing the ants'scent trails,and an experiment showed that ant foragers were perturbed by the removal of their scent trails.This leads us to use the term'erasure hypothesis.'Thus,this nesting association persists thanks to a relative tolerance by the ants towards wasp presence and the behavior of the wasps that allows them to'contain'their associated ants through the elimination of their scent trails,direct attacks,'wing-buzzing'behavior and ejecting the ants.Pablo Servigne Jerome Orivel Frederic Azemar James Carpenter Alain Dejean Bruno Corbara 2020Insect Science2020,27,1:0
2The dynamics of ant mosaics in tropical rainforests characterized using the Self-Organizing Map algorithm显示文摘蚂蚁,在在热带雨林的华盖住所动物之中的最丰富的 taxa,被其领土在一个马赛克模式(树木的蚂蚁马赛克) 分布式的领土地主导的树木的蚂蚁(TDA ) 主要代表。大 TDA 殖民地调整昆虫草食动物,与为林地和农学的含意。什么产生这些马赛克在里面植物的形成,动态,仍然,更好的需要理解。那么,从实验研究基于 3 喀麦隆人树种类(Lophira alata, Ochnaceae;Anthocleista vogelii, Gentianaceae;并且 Barteria fistulosa, Passifloraceae ) ,我们使用了自我组织的地图(SOM,神经网络) 成长作为他们的主人树说明 TDA 的继任并且变老。SOM 为 L 由种类并且由尺寸分开了树。alata,它能在高度到达 60 m 并且生活几个世纪。到成熟的树的从树苗的 TDA 的 ontogenic 继任被显示出,并且一些生态的特点为某些 TDA 被加亮。另外,因为 SOM 在全面 scatterplot 分布上没有孤立点的效果与许多零允许数据的分析,我们在稀罕种类上获得了生态的信息。最后,当同种的种类能有很不同的生态的壁龛, SOM 允许我们证明功能的组不能在类水平被选择,为 Crematogaster spp 特别地真的一些东西,它包括明确地与 B 联系的种。fistulosa, nondominant 种类和 TDA。因此, SOM 允许在 TDA 和他们的成长主人树之间的复杂关系被分析,当也在包含的蚂蚁种类的生态的特点上提供新信息时。Alain Dejean Frederic Azemar Regis Cereghino Maurice Leponce Bruno Corbara Jereme Orivel Arthur Compin 2016Insect Science2016,23,4:0
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