Trophic level and specialization moderate effects of habitat loss and landscape diversity on cavity-nesting bees, wasps and their parasitoids

IF 3.2 2区农林科学 Q1 ENTOMOLOGY

Insect Conservation and Diversity Pub Date : 2023-09-21 DOI:10.1111/icad.12688

Felix Klaus, Teja Tscharntke, Ingo Grass

引用次数: 0

Abstract

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营养级和专业化缓和栖息地丧失和景观多样性对穴巢蜜蜂、黄蜂及其寄生虫的影响

生境丧失是生物多样性下降的主要驱动因素，但物种对生境丧失的响应在本地和景观尺度上的差异尚不清楚。营养水平、食物和生境专门化已被认为是物种对栖息地丧失、景观多样性和景观规模反应的重要预测指标。利用石灰质草原上蜜蜂、黄蜂及其寄生蜂的洞穴筑巢群落作为模型系统，我们可以比较不同物种在营养水平、栖息地和食物专业化程度上的反应。我们发现，与低营养水平的物种相比，高营养水平的物种在更大的空间尺度上经历了半自然栖息地，但只有当它们是多面手(蜜蜂的丰度，150米半径，相对于以食草动物为食的黄蜂，450米半径)，而不是专才(蜜蜂，150米半径，相对于蜜蜂寄生蜂，150米半径)时，寄生蜂在食物资源(宿主)方面通常更专业化，与捕食者(如捕食黄蜂)相比，寄生蜂。在与寄主相同的空间尺度上对栖息地丧失做出反应，表明资源可得性具有很强的自下而上效应，即寄主可得性驱动寄生蜂的丰度。蜜蜂主要是钙质草原的生境专家，主要受当地生境丧失的驱动，而黄蜂则主要受景观多样性的影响。我们的研究强调需要考虑不同的空间尺度，这取决于目标物种群体的营养水平和专业化，维持或恢复当地栖息地和景观多样性，因为这是成功保护它们所必需的。

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来源期刊

Insect Conservation and Diversity 生物-昆虫学

CiteScore

7.70

自引率

8.60%

发文量

审稿时长

>12 weeks

期刊介绍： To publish papers of the highest scientific quality within the general area of insect (and other arthropods) conservation and diversity covering topics ranging from ecological theory to practical management. Papers are invited on the following topics: Conservation genetics; Extinction debt; Long-term conservation planning and implementation; Global implications of local or national conservation actions; Management responses of species and communities; Captive breeding programs; Comparisons of restored and natural habitats; Biogeography; Global biodiversity; Metapopulation dynamics; Climate change: impacts on distributions and range; Invasive species: impacts and control; Effects of pollution; Genetic threats to diversity by introgression; Effects of fragmentation on diversity and distribution; Impact of agricultural and forestry practices on biodiversity; Enhancing urban environments for diversity and protection; Biodiversity action plans: can we scale up from insects?; Effectiveness and choice of indicator species; Soil biodiversity and interactions with above-ground biodiversity; Ecological interactions at local levels; Ecological and evolutionary factors influencing diversity and local, regional and global scales; Sustainable livelihoods and training on the ground; Integrating science and policy.