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首页> 外文期刊>Limnologica >Benthic life in karst spring-The life cycle and secondary production of benthic macroinvertebrates under the effects of constant water temperature
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Benthic life in karst spring-The life cycle and secondary production of benthic macroinvertebrates under the effects of constant water temperature

机译：岩溶春季终生寿命 - 恒水温效应下底栖大型脊椎动物的生命周期和二次生产

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Because of the thermal stability and the persistence over geological time scales of their aquifers, the permanent karst springs may act as a glacial refuge, as well as serve as "in vivo" laboratories for the testing of various ecological hypotheses. For these reasons, our main hypotheses were: i) to the constant water temperature benthic species will response by specific voltinism and life-cycle length will be different from those that the species usually have in non-spring habitats; ii) under the constant water temperature the particular species and whole community will have higher biomass turnover like in similar non-spring habitats. Investigation was performed in large cave karst spring "Vyvieranie" in the Western Carpathians. In total, 40 species of benthic macroinvertebrates were identified in the studied karst spring. The trajectory of the annual change of the benthic community structure clearly showed a returnable pattern at the species density and biomass level. The constant water temperature throughout the year was reflected by specific life-history trajectories in certain benthic species. While some species had fixed voltinism (e.g. Ephemerella mucronata, Isoperla sudetica), others indicated having a flexible life-cycle pattern. In the species with a flexible life cycle, the trajectory of larval development occurred in two different ways. In the first case, a constant water temperature extended larval development (e.g. Protonemura auberti, Leuctra albida). In the second case, the addition of a winter cohort was recorded (e.g. Gammarus fossarum, Rhyacophila tristis, Protonemura austriaca). The productivity of this benthic community was considerably higher than that previously found in other submountain limestone streams in the Western Carpathians.
机译：由于热稳定性和对其含水层的地质时间尺度的持久性，永久性岩溶弹簧可以作为冰川避难所起到冰川避难所，以及“在体内”实验室，用于测试各种生态假设。由于这些原因，我们的主要假设是：i）恒定的水温，底栖物种将通过特定的voltinism和生命周期的长度与非春季栖息地具有不同的生命周期。 ii）在恒定的水温下，特定物种和整个社区将具有更高的生物量营业额，如类似的非春季栖息地。在西喀尔巴阡山脉的大洞喀斯特春天“Vyvieranie”进行了调查。在研究的岩溶弹簧中鉴定了40种底栖大型椎骨椎间椎骨。底栖群落结构年变化的轨迹明确显示了物种密度和生物质水平的可转换模式。全年的恒定水温被某些底栖物种的特定寿命轨迹反映。虽然某些物种具有固定的强大主义（例如ephemerella mucronata，Isoperla sudetica），但其他物种表明具有灵活的生命周期模式。在具有灵活生命周期的物种中，幼虫发育的轨迹以两种不同的方式发生。在第一种情况下，恒定的水温延长幼虫发育（例如Protonemura Auberti，Leurtra albida）。在第二种情况下，记录了冬季队列（例如γ毒素，rhyacophila tristis，Protonemura Austriaca）。该底栖群落的生产率远远高于西喀尔巴阡山脉的其他小组石灰岩溪流中发现的高得多。

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