Simple Mechanisms of Plant Reproductive Benefits Yield Different Dynamics in Pollination and Seed Dispersal Mutualisms
Simple Mechanisms of Plant Reproductive Benefits Yield Different Dynamics in Pollination and Seed Dispersal Mutualisms
复制标题
植物繁殖效益的简单机制在授粉和种子传播互利作用中产生不同的动力
DOI:
10.1086/720204
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Valdovinos, Fernanda S.
中科院分区:
文献类型:
--
作者:
Hale, Kayla R.;Maes, Daniel P.;Valdovinos, Fernanda S.
Pollination and seed dispersal mutualisms are critical for biodiversity and ecosystem services yet face mounting threats from anthropogenic perturbations that cause their populations to decline. Characterizing the dynamics of these mutualisms when populations are at low density is important to anticipate consequences of these perturbations. We developed simple population dynamic models detailed enough to distinguish different mechanisms by which plant populations benefit from animal pollination or seed dispersal. We modeled benefits as functions of foraging rate by animals on plant rewards and specified whether they affected plant seed set, germination, or negative density dependence during recruitment. We found that pollination and seed dispersal mutualisms are stable at high density but exhibit different dynamics at low density, depending on plant carrying capacity, animal foraging efficiency, and whether populations are obligate on their partners for persistence. Under certain conditions, all mutualisms experience destabilizing thresholds in which one population declines because its partner is too rare. Plants additionally experience Allee effects when obligate on pollinators. Finally, pollination mutualisms can exhibit bistable coexistence at low or high density when plants are facultative on pollinators. Insights from our models can inform conservation efforts, as mutualist populations continue to decline globally.
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影响因子:
5.5
作者:
Edwards, W;Dunlop, M;Rodgerson, L
通讯作者:
Rodgerson, L
DOI:
10.1098/rspb.2011.0185
发表时间:
2011
期刊:
Proceedings of the Royal Society B: Biological Sciences
影响因子:
--
作者:
D. Wotton;D. Kelly
通讯作者:
D. Kelly
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
F. Courchamp;L. Berec;J. Gascoigne
通讯作者:
J. Gascoigne
影响因子:
2.6
作者:
van der Heide T;Angelini C;de Fouw J;Eklöf JS
通讯作者:
Eklöf JS
影响因子:
2.7
作者:
K. Ford;J. Ness;J. Bronstein;W. Morris
通讯作者:
W. Morris