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Response of Beetle Assemblages (Insecta: Coleoptera) to Patch Characteristics and Habitat Complexity in an Ever-Expanding Urban Landscape in the Yucatán Peninsula, Mexico
Annals of the Entomological Society of America ( IF 2.3 ) Pub Date : 2021-04-07 , DOI: 10.1093/aesa/saab017
Silvia Ventura Cortés-Arzola 1 , Jorge L León-Cortés 1
Affiliation  

Insect diversity levels and change in remnant urban habitats have been poorly examined in Neotropical regions. The aim of this study was to evaluate the diversity and composition of foliage/shrub dwelling beetles (Insecta: Coleoptera) regarding the influence of patch attributes (i.e., patch size, connectivity, and surrounding matrix) and within-patch habitat complexity, in an urban landscape at Chetumal, Yucatán peninsula, Mexico. Despite the potential species-specific responses to urban landscape pattern, our study reveals that there are effects of patch spatial features and habitat complexity on overall beetle diversity. These effects are as follows: 1) relatively larger urban patches contained higher overall beetle richness, 2) beetle species composition varied significantly regarding understory vegetation structure and tree richness, and 3) patches of intermediate vegetation age had highest beetle richness. This research provides a case study of patch and habitat features related to Neotropical insect assemblages in urban settlements, underlying the importance of using ecological information to offer management recommendations in ever-expanding urban tropical settlements.

中文翻译:

墨西哥尤卡坦半岛不断扩大的城市景观中甲虫组合(昆虫纲:鞘翅目)对斑块特征和栖息地复杂性的响应

昆虫多样性水平和残余城市栖息地的变化在新热带地区的研究很少。本研究的目的是评估叶子/灌木栖息甲虫(昆虫纲:鞘翅目)的多样性和组成对斑块属性(即斑块大小、连通性和周围基质)和斑块内栖息地复杂性的影响。墨西哥尤卡坦半岛切图马尔的城市景观。尽管对城市景观格局存在潜在的物种特异性反应,但我们的研究表明,斑块空间特征和栖息地复杂性对整体甲虫多样性有影响。这些影响如下:1)相对较大的城市斑块包含较高的整体甲虫丰富度,2)甲虫物种组成在林下植被结构和树木丰富度方面差异很大,3)中间植被年龄的斑块甲虫丰富度最高。本研究提供了与城市住区中新热带昆虫组合相关的斑块和栖息地特征的案例研究,说明了使用生态信息为不断扩大的城市热带住区提供管理建议的重要性。
更新日期:2021-04-07
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