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Effect of habitat amount and complexity on social wasps (Vespidae: Polistinae): implications for biological control
Journal of Insect Conservation ( IF 1.9 ) Pub Date : 2020-02-28 , DOI: 10.1007/s10841-020-00221-7
José Victor Alves Ferreira , Danielle Storck-Tonon , Ricardo José da Silva , Alexandre Somavilla , Mônica Josene Barbosa Pereira , Dionei José da Silva

Agricultural expansions have major negative impacts on terrestrial biodiversity, directly affecting ecosystem services. Social wasps (Hymenoptera: Vespidae: Polistinae) actively participate in trophic balance in natural ecosystems and biological control of agricultural pests. In this work, we evaluated the richness and composition of social wasps in the interior of the native habitat, edge, and adjacent soybean cultivation area. We also evaluated the effect of the amount and complexity of habitat structure on the richness and composition of social wasps, considering two scales (buffer 5000 and 1000 m). We sampled 42 sites distributed in eight municipalities, in the Midwest region of Brazil, using Malaise trap. In total, we collected 288 individuals distributed in 43 species and 10 genera. The richness of social wasps did not differ among the points (interior, edge, and culture) in the three vegetation categories (Forest, Ecotone, and Cerrado). However, species composition differed between edge and crop, only in areas categorized as Forest. The amount of native habitat influenced social wasp richness and composition only in the Forest areas and social wasp richness was positively related to the complexity of the habitat structure at both scales (buffer 5000 and 1000 m), which had no significant effect on species composition. Social wasps are generalists regarding foraging sites but rely on structurally more complex habitats to nest. Thus, the maintenance of native habitats favors the richness of social wasps in adjacent soybean areas.

中文翻译:

栖息地数量和复杂性对社会黄蜂(Vespidae:Polistinae)的影响:对生物控制的影响

农业扩张对陆地生物多样性产生重大负面影响,直接影响生态系统服务。社会黄蜂(膜翅目:Vespidae:Polistinae)积极参与自然生态系统的营养平衡和农业害虫的生物防治。在这项工作中,我们评估了原生栖息地内部、边缘和邻近大豆种植区的社会黄蜂的丰富度和组成。我们还评估了栖息地结构的数量和复杂性对社会黄蜂的丰富度和组成的影响,考虑到两个尺度(缓冲区 5000 和 1000 m)。我们使用 Malaise 陷阱对分布在巴西中西部地区 8 个城市的 42 个站点进行了采样。我们总共收集了分布在 43 种和 10 属的 288 个体。社会黄蜂的丰富度在三个植被类别(森林、生态带和塞拉多)的点(内部、边缘和文化)之间没有差异。然而,边缘和作物之间的物种组成不同,仅在归类为森林的区域中。原生栖息地的数量仅影响森林地区的社会黄蜂丰富度和组成,社会黄蜂丰富度与两个尺度(缓冲区 5000 和 1000 m)生境结构的复杂性呈正相关,对物种组成没有显着影响。社会黄蜂是觅食地点的通才,但依赖结构更复杂的栖息地来筑巢。因此,原生栖息地的维护有利于邻近大豆区社会黄蜂的丰富。然而,边缘和作物之间的物种组成不同,仅在归类为森林的区域中。原生栖息地的数量仅影响森林地区的社会黄蜂丰富度和组成,社会黄蜂丰富度与两个尺度(缓冲区5000和1000 m)生境结构的复杂性呈正相关,对物种组成没有显着影响。社会黄蜂是觅食地点的通才,但依赖结构更复杂的栖息地来筑巢。因此,原生栖息地的维护有利于邻近大豆区社会黄蜂的丰富。然而,边缘和作物之间的物种组成不同,仅在归类为森林的区域中。原生栖息地的数量仅影响森林地区的社会黄蜂丰富度和组成,社会黄蜂丰富度与两个尺度(缓冲区 5000 和 1000 m)生境结构的复杂性呈正相关,对物种组成没有显着影响。社会黄蜂是觅食地点的通才,但依赖结构更复杂的栖息地来筑巢。因此,原生栖息地的维护有利于邻近大豆区社会黄蜂的丰富。原生栖息地的数量仅影响森林地区的社会黄蜂丰富度和组成,社会黄蜂丰富度与两个尺度(缓冲区5000和1000 m)生境结构的复杂性呈正相关,对物种组成没有显着影响。社会黄蜂是觅食地点的通才,但依赖结构更复杂的栖息地来筑巢。因此,原生栖息地的维护有利于邻近大豆区社会黄蜂的丰富。原生栖息地的数量仅影响森林地区的社会黄蜂丰富度和组成,社会黄蜂丰富度与两个尺度(缓冲区5000和1000 m)生境结构的复杂性呈正相关,对物种组成没有显着影响。社会黄蜂是觅食地点的通才,但依赖结构更复杂的栖息地来筑巢。因此,原生栖息地的维护有利于邻近大豆区社会黄蜂的丰富。
更新日期:2020-02-28
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