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首页> 外文期刊>Estuarine Coastal and Shelf Science >Predicting Phyllaplysia taylori (Anaspidea: Aplysiidae) presence in Northeastern Pacific estuaries to facilitate grazer community inclusion in eelgrass restoration
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Predicting Phyllaplysia taylori (Anaspidea: Aplysiidae) presence in Northeastern Pacific estuaries to facilitate grazer community inclusion in eelgrass restoration

机译：预测东北太平洋河口的泰勒虫（Anaspidea：Aplysiidae）的存在，以促进放牧者社区将其纳入鳗草恢复中

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Estuarine biodiversity is impacted by climate change and anthropogenic use due to the high productivity of estuarine ecosystems and convenient human use of nearshore areas. Human use of estuaries (e.g. with dredging, filling, and invasive species introductions) has decimated subtidal and marsh ecosystems, thus making them the focus of major restoration efforts. Submerged aquatic vegetation (SAV) such as eelgrass beds, and their associated communities, fall under these restoration efforts, especially in San Francisco Bay. Diverse eelgrass communities that include grazers, such as Phyllaplysia taylori, have been shown to maintain eelgrass health and promote increased biodiversity. This study addresses the need for simple, predictive models based on field data for use in SAV restoration that incorporates grazer diversity. Predictive models with ecological, abiotic, and landscape variables were generated that explained the presence of P. taylori in eelgrass beds along the coast of the western United States and seasonal patterns in population density. While surprising, the exclusion of abiotic factors in presence/absence model selection suggested that non-point source runoff promotes P. taylori populations via increased food and turbidity, resulting in decreased predation. P. taylori presence within eelgrass beds was best predicted by the positive impacts of nearshore irrigated land, vegetated land, and bare soil land. P. taylori abundance over time within one site was best described by the positive effects of eelgrass density and eelgrass length and the negative effects of epiphytic coverage and average temperature. These models were used to predict habitat suitability for P. taylori in seventeen San Francisco Bay eelgrass restoration areas in various phases of completion, indicating a 53% P. taylori success rate. Incorporating population persistence knowledge from the SAV-associated invertebrate perspective is a step towards grazer community-minded restoration tactics.
机译：由于河口生态系统的高生产率和近岸地区人类的便利使用，河口生物多样性受到气候变化和人为使用的影响。人类对河口的利用（例如疏dr，填充和入侵物种的引进）使潮下带和沼泽生态系统大大减少，因此使其成为主要恢复工作的重点。这些水下生物的恢复工作，特别是在旧金山湾，属于水草植被（SAV），如鳗草床及其相关社区。包括放牧者在内的各种鳗草群落，如泰勒楠（Phyllaplysia taylori），被证明可以维持鳗草健康并促进生物多样性的增长。这项研究满足了基于现场数据的简单，可预测的模型的需求，以用于结合了掠食者多样性的SAV恢复。生成了具有生态，非生物和景观变量的预测模型，该模型解释了美国西部沿海鳗草床上的泰勒体育假单胞菌的存在以及人口密度的季节性模式。出人意料的是，在存在/不存在模型选择中排除非生物因素表明，非点源径流通过增加食物和浑浊度来促进泰氏疟原虫种群，从而减少捕食。通过近岸灌溉土地，植被土地和裸露的土地的积极影响，可以最好地预测鳗鱼床中泰勒体育虫的存在。一个部位内随着时间的推移，泰勒假单胞菌的丰度最好用鳗草密度和鳗草长度的积极影响以及附生覆盖率和平均温度的消极影响来最好地描述。这些模型被用来预测十七个旧金山湾鳗草恢复区在完成的各个阶段对泰勒体育的适应性，表明泰勒体育的成功率为53％。从与SAV相关的无脊椎动物的角度纳入人口持久性知识是迈向掠夺者社区意识的恢复策略的一步。

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