当前位置: X-MOL 学术Flora › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Phorophyte type determines epiphyte-phorophyte network structure in a Mexican oak forest
Flora ( IF 1.9 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.flora.2020.151704
Beatriz Olivia Cortés-Anzúres , Angélica María Corona-López , Anne Damon , Martín Mata-Rosas , Alejandro Flores-Palacios

Abstract Phorophytes are assumed to act as facilitators for epiphytes, but empirical evidence indicates that they also act as amensalists. While few epiphytes can colonize most phorophytes, some epiphytes (such as orchids) appear in few phorophytes and/or have low population sizes, suggesting that are strongly phorophyte-limited. We assume that phorophyte type must determine the structure of the interaction network between epiphytes and phorophytes. In order to identify phorophyte type, we studied their distribution of epiphytes and, using two methods for measuring interaction intensity (raw and standardized data), analyzed the structure of the epiphyte-phorophyte interaction network. We quantified and identified all of the epiphytes and their phorophytes in all of the woody plants (diameter at breath height ≥ 5 cm) found in five 0.1 ha transects (10 × 100 m) in an oak forest of central Mexico. Acacia farnesiana and Bursera copallifera were the preferred phorophytes with greater epiphyte loads than would be expected by chance, while Quercus magnoliifolia and Q. candicans were limiting, with less epiphytes than would be expected by chance. In the network analyses, the preferred phorophytes concentrated interactions. These included B. copallifera, which, despite being infrequent, had the highest intensity of interaction with the most abundant epiphyte (Viridantha atroviridipetala: Bromeliaceae), while the most abundant phorophyte (Q. magnoliifolia) had low interaction intensity. This study reinforces the increasing evidence showing that epiphytes can be phorophyte-limited and shows that the type and importance of phorophytes within the interaction network is not determined by their abundance.

中文翻译:

墨西哥橡树林中的附生植物 - 附生植物网络结构

摘要 Phorophytes 被假定为是附生植物的促进者,但经验证据表明它们也充当了修复者。虽然很少有附生植物可以定殖于大多数叶状植物,但一些附生植物(例如兰花)出现在少数叶状植物中和/或种群规模较小,表明它们受到强烈的叶状植物限制。我们假设叶状植物类型必须决定附生植物和叶状植物之间相互作用网络的结构。为了识别叶状植物类型,我们研究了它们的附生植物分布,并使用两种测量相互作用强度的方法(原始数据和标准化数据)分析了附生植物-叶状植物相互作用网络的结构。我们量化并鉴定了 5 个 0 中发现的所有木本植物(呼吸高度处直径 ≥ 5 厘米)中的所有附生植物和它们的附生植物。墨西哥中部橡树林中的 1 公顷横断面 (10 × 100 m)。Acacia farnesiana 和 Bursera copallifera 是首选的叶状植物,其附生植物负载量高于偶然预期,而 Quercus magnoliifolia 和 Q. candicans 是限制性的,附生植物数量少于偶然预期。在网络分析中,首选的叶藻集中了相互作用。其中包括 B. copallifera,尽管不常见,但与最丰富的附生植物(Viridantha atroviridipetala:凤梨科)的相互作用强度最高,而最丰富的叶状植物(Q. magnoliifolia)的相互作用强度较低。
更新日期:2020-11-01
down
wechat
bug