Senckenberg Biodiversity and Climate Research Centre Frankfurt, Senckenberganlage 25, 60325 Frankfurt am Main, Germany.
Goethe Universität Frankfurt, Fachbereich Biowissenschaften, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany.
Sci Rep. 2016 Jul 20;6:29839. doi: 10.1038/srep29839.
Plant regeneration is essential for maintaining forest biodiversity and ecosystem functioning, which are globally threatened by human disturbance. Here we present the first integrative meta-analysis on how forest disturbance affects multiple ecological processes of plant regeneration including pollination, seed dispersal, seed predation, recruitment and herbivory. We analysed 408 pairwise comparisons of these processes between near-natural and disturbed forests. Human impacts overall reduced plant regeneration. Importantly, only processes early in the regeneration cycle that often depend on plant-animal interactions, i.e. pollination and seed dispersal, were negatively affected. Later processes, i.e. seed predation, recruitment and herbivory, showed overall no significant response to human disturbance. Conserving pollination and seed dispersal, including the animals that provide these services to plants, should become a priority in forest conservation efforts globally.
植物再生对于维持森林生物多样性和生态系统功能至关重要,而这些都受到全球人类干扰的威胁。在这里,我们首次进行了综合的荟萃分析,探讨了森林干扰如何影响植物再生的多个生态过程,包括传粉、种子扩散、种子捕食、幼苗更新和草食作用。我们分析了 408 对近自然森林和干扰森林之间这些过程的成对比较。人类活动的总体影响降低了植物再生。重要的是,只有在再生周期早期、通常依赖植物-动物相互作用的过程,即传粉和种子扩散,受到负面影响。而后来的过程,如种子捕食、幼苗更新和草食作用,总体上对人类干扰没有明显的反应。在全球的森林保护工作中,应优先保护传粉和种子扩散,包括为植物提供这些服务的动物。