Threesomes destabilise certain relationships: multispecies interactions between wood decay fungi in natural resources.
Threesomes destabilise certain relationships: multispecies interactions between wood decay fungi in natural resources.
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DOI：
10.1093/femsec/fix014
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发表时间：
2017-03-01
影响因子：
4.2
通讯作者：
Boddy L
中科院分区：
文献类型：
--
作者：
Hiscox J;Savoury M;Toledo S;Kingscott-Edmunds J;Bettridge A;Waili NA;Boddy L
理解种间相互作用是解释和模拟群落发展和相关生态系统功能的关键。大多数相互作用研究都集中在成对组合上，忽视了多物种群落的复杂性。本研究调查了木材和土壤中腐食真菌之间的三向相互作用，并表明成对组合往往是不准确的预测结果的多物种竞争的木块相互作用。这种不一致性是特别真实的不传递的组合，导致增加物种共存的资源。此外，除了第三个竞争对手经常不稳定，否则一贯的结果成对组合的木块，这偶尔会导致改变资源分解率，这取决于所涉及的物种的相对衰减能力。相反，在土壤微观世界的相互作用的结果不受第三个战斗人员的存在。多物种的相互作用促进了自然资源中的物种多样性，并使社区动态不太一致，可以从成对相互作用研究预测。木材腐朽菌之间的多物种相互作用促进自然资源中的物种多样性，并使社区动态不太一致，可以预测从成对相互作用的研究。
Understanding interspecific interactions is key to explaining and modelling community development and associated ecosystem function. Most interactions research has focused on pairwise combinations, overlooking the complexity of multispecies communities. This study investigated three-way interactions between saprotrophic fungi in wood and across soil, and indicated that pairwise combinations are often inaccurate predictors of the outcomes of multispecies competition in wood block interactions. This inconsistency was especially true of intransitive combinations, resulting in increased species coexistence within the resource. Furthermore, the addition of a third competitor frequently destabilised the otherwise consistent outcomes of pairwise combinations in wood blocks, which occasionally resulted in altered resource decomposition rates, depending on the relative decay abilities of the species involved. Conversely, interaction outcomes in soil microcosms were unaffected by the presence of a third combatant. Multispecies interactions promoted species diversity within natural resources, and made community dynamics less consistent than could be predicted from pairwise interaction studies. Multispecies interactions between wood decay fungi promote species diversity within natural resources, and make community dynamics less consistent than could be predicted from pairwise interaction studies.