Role of diapause in dispersal and invasion success by aquatic invertebrates
Role of diapause in dispersal and invasion success by aquatic invertebrates
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DOI：
10.4081/jlimnol.2004.s1.56
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发表时间：
2004-09
影响因子：
1.6
通讯作者：
V. Panov;P. Krylov;N. Riccardi
中科院分区：
文献类型：
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作者：
V. Panov;P. Krylov;N. Riccardi
对现有文献的回顾表明滞育在水生无脊椎动物的扩散中发挥着重要作用。有证据表明，在水生无脊椎动物中，滞育在扩散中的作用对于甲壳类动物可能很重要，特别是对于产生休眠卵的物种。对滞育物种传播媒介的分析表明，与自然媒介（水流、风、鸟类）相比，上个世纪人类介导的物种传播媒介（有意和无意的引入，特别是与航运有关）的作用越来越大。一般来说，人类媒介媒介的作用对于物种跨越地理障碍和进入受航运影响的大型水生生态系统的扩散最为重要。与历史上自然驱动的物种扩散率相比，当前人类介导的运输媒介将水生物种引入率提高了多个数量级。发展滞育休眠阶段的能力有利于物种在极端条件下跨越地理障碍时的生存，例如在船舶的压载舱中。对枝角类入侵物种的案例研究表明，一些入侵者可能具有适应性生命周期，转向早期延长的配子生殖，这有助于它们成功入侵新的生态系统，并通过自然和人类介导的媒介进一步扩散。
Review of existing literature shows an important role of diapause in dispersal of aquatic invertebrates. There is evidence that among aquatic invertebrates, the role of diapause in dispersal can be important in crustaceans, specifically for species that produce resting eggs. Analysis of dispersal vectors of diapausing species revealed the increasing role of human-mediated vectors of species dispersal during last century (intentional and unintentional introductions, specifically associated with shipping) in comparison with natural vectors (currents, wind, birds). Generally, the role of human-mediated vectors is most important for species dispersal across geographical barriers and into large aquatic ecosystems affected by shipping. Current human-mediated transport vectors increase rates of aquatic species introductions in many orders of magnitude in comparison with historical nature-driven species dispersal rates. Ability to develop diapausing resting stages facilitates species survival during movement across geographical barriers under extreme conditions, such as in ballast tanks of ships. Case studies for invasive species of Cladocera show that some invaders may possess adaptive life cycles, switching to the early prolonged gamogenetic reproduction, which facilitates their invasion success into novel ecosystems and further dispersal by both natural and human-mediated vectors.