Moth declines are most severe in broadleaf woodlands despite a net gain in habitat availability.
Moth declines are most severe in broadleaf woodlands despite a net gain in habitat availability.
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DOI：
10.1111/icad.12578
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发表时间：
2022-09
影响因子：
3.5
通讯作者：
Bell JR
中科院分区：
文献类型：
--
作者：
Blumgart D;Botham MS;Menéndez R;Bell JR
虽然农业集约化和栖息地丧失被认为是蛾类减少的关键驱动因素，但仅凭这些并不能解释英国林地的减少--自1968年以来，英国林地的栖息地面积一直在扩大。我们量化了飞蛾群落在不同生境和地区之间的变化，并确定了物种特征如何与栖息地相互作用来预测飞蛾丰度的变化。我们假设，在林地，更容易受到鹿的遮荫和觅食的物种(专门研究杂草、灌木和不耐荫的植物的物种)的衰退比其他物种更严重，林地的蛾子衰退在更容易受到鹿伤害的地方更严重。我们对1968年至2016年的丰度、生物量、物种丰富度和多样性进行了建模，并探索了这些与栖息地和地区的相互作用。我们还模拟了栖息地与幼虫取食性和寄主植物耐荫性这两个蛾种性状之间的交互作用。飞蛾在阔叶林中的下降幅度一直最高。林地的丰富度、生物量、物种丰富度和多样性分别显著下降了−51%、−52%、−14%和−15%，而全国趋势为−34%、−39%、−1%(不显著)和+10%。在更容易受到鹿咬伤的林地，降幅并不大。基于特征的分析发现，没有证据表明遮荫和鹿的密集觅食可以解释林地飞蛾的减少。飞蛾在阔叶林中的消亡比集约化经营的农田严重。我们没有发现鹿觅食或增加遮荫推动这些趋势的证据：林地飞蛾减少的主要原因尚不清楚。从1968年到2016年，英国对七种栖息地的蛾的丰度、生物量、物种丰富度和多样性进行了建模。阔叶林的衰退最为严重，这是丰富度和多样性下降的唯一栖息地。在国家一级，多样性在这一时期有所增加。基于特性的物种趋势分析没有证据表明，阴凉度的增加和鹿的过度放牧是林地飞蛾减少的原因。
While agricultural intensification and habitat loss are cited as key drivers of moth decline, these alone cannot explain declines observed in UK woodlands – a habitat that has expanded in area since 1968. We quantified how moth communities changed across habitats and regions and determined how species traits interacted with habitat in predicting moth abundance change. We hypothesised that, in woodlands, species more vulnerable to shading and browsing by deer (species specialising on forbs, shrubs and shade‐intolerant plants) had declined more severely than other species, and that moth decline in woodlands was more severe at sites more susceptible to deer damage. We modelled abundance, biomass, species richness and diversity from 1968 to 2016 and explored how these interacted with habitat and region. We also modelled the interaction between habitat and two moth species traits: larval feeding guild and shade‐tolerance of hostplant. Moth declines were consistently highest in broadleaf woodland. Abundance, biomass, species richness and diversity declined significantly by −51%, −52%, −14% and −15% in woodlands, respectively, compared to national trends of −34%, −39%, −1% (non‐significant) and +10%. Declines were no greater in woodlands more susceptible to deer browsing damage. Traits based analysis found no evidence that shading and intensive browsing by deer explained moth declines in woodland. Moth decline was more severe in broadleaf woodlands than in intensively managed farmlands. We found no evidence that deer browsing or increased shading has driven these trends: the primary cause of the decline of moths in woodlands remains unclear. The abundance, biomass, species richness and diversity of moths in the UK was modelled from 1968 to 2016 across seven habitat types. Declines were most severe in broadleaf woodland and this was the only habitat in which declines in richness and diversity occurred. At the national level, diversity increased over this period. Traits based analysis of species trends provided no evidence that increased shadiness and overgrazing by deer were responsible for the decline of moths in woodland.
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DOI：
10.1111/1365-2664.12256
发表时间：
2014-08
期刊：
The Journal of applied ecology
影响因子：
--
作者：
Fox R;Oliver TH;Harrower C;Parsons MS;Thomas CD;Roy DB
通讯作者：
Roy DB
影响因子：
3.5
作者：
Bell, James R.;Blumgart, Dan;Shortall, Chris R.
通讯作者：
Shortall, Chris R.
DOI：
10.1073/pnas.1311190110
发表时间：
2013-11-12
影响因子：
11.1
作者：
De Frenne, Pieter;Rodriguez-Sanchez, Francisco;Verheyen, Kris
通讯作者：
Verheyen, Kris
影响因子：
5.9
作者：
Fartmann, Thomas;Mueller, Cornelia;Poniatowski, Dominik
通讯作者：
Poniatowski, Dominik
影响因子：
1.9
作者：
Dennis, E. B.;Brereton, T. M.;Foster, S.
通讯作者：
Foster, S.