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Patch dynamics of various plant-animal interactions in fragmented landscapes

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  • Xu, Zhichao
  • Shen, Yang
  • Liao, Jinbao

Abstract

Habitat destruction, characterized by patch loss and patch fragmentation, has been recognized as one of leading factors driving species loss. Although some studies have already explored how patch loss affects metacommunity dynamics, the effect of patch configurational fragmentation remains vaguely understood. Here we construct a patch-dynamic model for various plant-animal interactions in fragmented landscapes, including neutralism (0, 0), poison (0, −), competition (−, −), predation (−, +), fruitivory (0, +) and mutualism (+, +). Counter-intuitively, negative plant-animal interactions (harmful for one or both species) show stronger tolerance to habitat destruction (i.e., higher species persistence) than positive interactions (beneficial to one or both species), in spite of lower patch occupancy. This is because animal species survival in positive interactions largely depends on plant species abundance. Furthermore, neutralism displays most robust to both patch loss and fragmentation while mutualism showing most vulnerability. Essentially, neutral interaction leads to more patches available for both plant and animal species, while in mutualistic interaction (e.g., pollination), both plant and animal species can only persist when they co-occur at the same patches. Compared to other interactions, predation (−, +) results in lowest patch occupancy, but such trophic interaction does not exhibit highest sensitivity to habitat destruction. Overall, our modelling framework provides new insights into how different plant-animal interactions respond to landscape fragmentation.

Suggested Citation

  • Xu, Zhichao & Shen, Yang & Liao, Jinbao, 2018. "Patch dynamics of various plant-animal interactions in fragmented landscapes," Ecological Modelling, Elsevier, vol. 368(C), pages 27-32.
  • Handle: RePEc:eee:ecomod:v:368:y:2018:i:c:p:27-32
    DOI: 10.1016/j.ecolmodel.2017.11.017
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    References listed on IDEAS

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    1. Shin Fukui & Kiwako S Araki, 2014. "Spatial Niche Facilitates Clonal Reproduction in Seed Plants under Temporal Disturbance," PLOS ONE, Public Library of Science, vol. 9(12), pages 1-17, December.
    2. Liao, Jinbao & Li, Zhenqing & Hiebeler, David E. & El-Bana, Magdy & Deckmyn, Gaby & Nijs, Ivan, 2013. "Modelling plant population size and extinction thresholds from habitat loss and habitat fragmentation: Effects of neighbouring competition and dispersal strategy," Ecological Modelling, Elsevier, vol. 268(C), pages 9-17.
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    Cited by:

    1. Shen, Yang & Zeng, Chenghui & Nijs, Ivan & Liao, Jinbao, 2019. "Species persistence in spatially regular networks," Ecological Modelling, Elsevier, vol. 406(C), pages 1-6.
    2. Zhang, Helin & Chen, Dongdong & Ying, Zhixia & Zhang, Feng & Liao, Jinbao, 2019. "Robustness of the pollination-herbivory system with high-order interactions to habitat loss," Ecological Modelling, Elsevier, vol. 414(C).

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