Modeling scale up of anthropogenic impacts from individual pollinator behavior to pollination systems.
Modeling scale up of anthropogenic impacts from individual pollinator behavior to pollination systems.
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DOI：
10.1111/cobi.13754
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发表时间：
2021-10
期刊：
影响因子：
--
通讯作者：
Ryder EF
中科院分区：
文献类型：
--
作者：
Gegear RJ;Heath KN;Ryder EF
了解人为干扰如何影响植物传粉者系统对保护生物多样性和生态系统功能具有重要意义。先前的实验室研究表明，农药和病原体可以破坏传粉媒介适应性地利用植物资源和有效地在植物间传递花粉所需的行为过程，这与近年来全球传粉媒介的快速减少有关。然而，这些亚致死应激源在个体水平上对传粉者-植物相互作用的影响是否会扩大到系统水平上对野生植物和传粉者种群动态的变化，目前尚不清楚。我们开发了一个经验参数化的基于代理的大黄蜂授粉系统SimBee模型，以测试压力源引起的个体觅食者记忆容量和信息处理速度的下降对蜜蜂丰度（场景1）、植物多样性（场景2）和蜜蜂-植物系统稳定性（场景3）的影响。对一只大黄蜂和四种同花蜜蜂授粉的植物的简单传粉网络的建模表明，当只有25%的觅食种群表现出认知障碍时，蜜蜂数量下降和植物物种灭绝事件可能发生。在某些条件下，更高的损害百分比导致50%的蜜蜂在5个虚拟季节中损失，在不到20个虚拟季节中造成全系统范围的灭绝事件。植物物种的灭绝与蜜蜂种群大小无关，这表明应激源引起的传粉者行为的变化可能会导致植物群落的物种灭绝。这些结果表明，亚致死应激源对传粉者行为机制的影响，虽然在个体水平上看似微不足道，但原则上在系统水平上具有累积的潜力，可以降低植物与传粉者物种的相互作用。我们的工作强调了基于agent的建模方法对于识别和减轻人为对植物传粉者系统的影响的重要性。文章影响说明：农药和疾病对传粉媒介觅食行为的亚致死效应威胁着传粉系统的稳定性。
Understanding how anthropogenic disturbances affect plant–pollinator systems has important implications for the conservation of biodiversity and ecosystem functioning. Previous laboratory studies show that pesticides and pathogens, which have been implicated in the rapid global decline of pollinators over recent years, can impair behavioral processes needed for pollinators to adaptively exploit floral resources and effectively transfer pollen among plants. However, the potential for these sublethal stressor effects on pollinator–plant interactions at the individual level to scale up into changes to the dynamics of wild plant and pollinator populations at the system level remains unclear. We developed an empirically parameterized agent‐based model of a bumblebee pollination system called SimBee to test for effects of stressor‐induced decreases in the memory capacity and information processing speed of individual foragers on bee abundance (scenario 1), plant diversity (scenario 2), and bee–plant system stability (scenario 3) over 20 virtual seasons. Modeling of a simple pollination network of a bumblebee and four co‐flowering bee‐pollinated plant species indicated that bee decline and plant species extinction events could occur when only 25% of the forager population showed cognitive impairment. Higher percentages of impairment caused 50% bee loss in just five virtual seasons and system‐wide extinction events in less than 20 virtual seasons under some conditions. Plant species extinctions occurred regardless of bee population size, indicating that stressor‐induced changes to pollinator behavior alone could drive species loss from plant communities. These findings indicate that sublethal stressor effects on pollinator behavioral mechanisms, although seemingly insignificant at the level of individuals, have the cumulative potential in principle to degrade plant–pollinator species interactions at the system level. Our work highlights the importance of an agent‐based modeling approach for the identification and mitigation of anthropogenic impacts on plant–pollinator systems. Article impact statement: Sublethal effects of pesticides and disease on pollinator foraging behavior threaten the stability of pollination systems.
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影响因子：
2.7
作者：
Goulson D
通讯作者：
Goulson D
影响因子：
3.4
作者：
Folly AJ;Koch H;Stevenson PC;Brown MJF
通讯作者：
Brown MJF
DOI：
10.1111/1365-2664.12112
发表时间：
2013-08
期刊：
The Journal of applied ecology
影响因子：
--
作者：
Becher MA;Osborne JL;Thorbek P;Kennedy PJ;Grimm V
通讯作者：
Grimm V
影响因子：
5.9
作者：
Colla, Sheila R.;Otterstatter, Michael C.;Thomson, James D.
通讯作者：
Thomson, James D.
DOI：
10.1098/rspb.2005.3423
发表时间：
2006-05-07
影响因子：
4.7
作者：
Gegear, RJ;Otterstatter, MC;Thomson, JD
通讯作者：
Thomson, JD