Environmental drivers of community diversity in a neotropical urban landscape: a multi-scale analysis
Environmental drivers of community diversity in a neotropical urban landscape: a multi-scale analysis
复制标题
新热带城市景观中群落多样性的环境驱动因素：多尺度分析
作者：
Stanislas Talaga;F. Petitclerc;J. Carrias;Olivier Dézerald;C. Leroy;R. Céréghino;A. Dejean
许多水生群落通过多种相互作用的物种的空中扩散联系在一起，并因此由生态系统中水生和陆生两部分的过程构成。目的评估城市景观中与水生无脊椎动物群落相关的环境因素。方法对32个菠萝进行地理参考，以评估一个城市水生后生生境的空间分布。采用冗余度分析方法，在半径分别为10、30、50和70 mm的4个空间尺度上，分析了水生和陆生生境对大型无脊椎动物群落结构的相对影响。无论空间尺度如何，水的体积和有机质的数量是分类群差异的重要原因。剩余的差异是由生境大小(即给定表面积内所有菠萝的水量)、在小尺度上到最近建筑物的距离以及在大尺度上建筑物的表面积加地被物来解释的。在小尺度上，后栖息地的大小以相反的方式影响着两个最常见的蚊子物种，表明空间竞争和共存。较大的植被覆盖度有利于顶端捕食者的存在。结论后栖息地的大小和城市景观特征影响着水生群落的结构，包括蚊子幼虫的丰度。对这一景观的修改将影响城市生态系统的陆地和水生空间，为城市规划期间的蚊子管理提供了前景。
ContextMany aquatic communities are linked by the aerial dispersal of multiple, interacting species and are thus structured by processes occurring in both the aquatic and terrestrial compartments of the ecosystem.ObjectivesTo evaluate the environmental factors shaping the aquatic macroinvertebrate communities associated with tank bromeliads in an urban landscape.MethodsThirty-two bromeliads were georeferenced to assess the spatial distribution of the aquatic meta-habitat in one city. The relative influence of the aquatic and terrestrial habitats on the structure of macroinvertebrate communities was analyzed at four spatial scales (radius = 10, 30, 50, and 70 m) using redundancy analyses.ResultsWe sorted 18,352 aquatic macroinvertebrates into 29 taxa. Water volume and the amount of organic matter explained a significant part of the taxa variance, regardless of spatial scale. The remaining variance was explained by the meta-habitat size (i.e., the water volume for all of the bromeliads within a given surface area), the distance to the nearest building at small scales, and the surface area of buildings plus ground cover at larger scales. At small scales, the meta-habitat size influenced the two most frequent mosquito species in opposite ways, suggesting spatial competition and coexistence. Greater vegetation cover favored the presence of a top predator.ConclusionsThe size of the meta-habitat and urban landscape characteristics influence the structure of aquatic communities in tank bromeliads, including mosquito larval abundance. Modifications to this landscape will affect both the terrestrial and aquatic compartments of the urban ecosystem, offering prospects for mosquito management during urban planning.
登革热流行的里约热内卢城市植物园中栖息着凤梨科植物的蚊子——凤梨科植物是入侵媒介埃及伊蚊和白纹伊蚊的繁殖栖息地吗？
影响因子：
2.8
作者：
Mocellin,MárcioGoulart;Simões,TaynãnaCésar;Nascimento,TeresaFernandesSilvado;Teixeira,MariaLuciaFrança;Lounibos,LeonPhilip;Oliveira,RicardoLourençode
通讯作者：
Oliveira,RicardoLourençode
与凤梨科植物相关的昆虫和盟友：综述。
DOI：
10.1163/187498308x414742
发表时间：
2009
期刊：
Terrestrial arthropod reviews
影响因子：
--
作者：
Frank,JH;Lounibos,LP
通讯作者：
Lounibos,LP