Lake expansion elevates equilibrium diversity via increasing colonization
Lake expansion elevates equilibrium diversity via increasing colonization
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湖泊扩张通过增加殖民化来提高平衡多样性
DOI：
10.1111/jbi.13914
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发表时间：
2020
影响因子：
3.9
通讯作者：
Valente
中科院分区：
文献类型：
--
作者：
Hauffe;Delicado;Etienne;Valente
定殖率，物种形成和灭绝决定了岛屿系统中的物种丰富度和特有性。岛屿地理学的一般动态模型（GDM）预测，物种形成和灭绝率取决于岛屿面积和海拔高度，通过其控制的生态限制多样化，因此与岛屿的地质历史。此外，定殖率可以通过“目标效应”随面积和海拔而增加，这可以通过减少“环境过滤”来介导。在这里，我们测试是否面积和深度扩展的岛屿状生态系统，一个湖，引起了变化的多样性dynamics.LocationLake琵琶湖，日本，其地质历史和生物区系有很好的记录。TaxonFishes.MethodsWe扩展了系统发育岛屿地理框架DAISIE（动态组装岛屿生物区系通过物种形成，移民和灭绝），以适应时间的变化，在宏观进化速率和承载能力。使用系统发育信息的殖民化和物种形成时间的完整的琵琶湖鱼类群落（70类群），我们测试了宏观进化组装率的转变，并重建了时间多样性的轨迹在湖中。我们评估的权力，以确定一个转变，通过广泛的场景和基准对模拟的化石records.ResultsWe检测到的殖民化率的鱼类在0.2万年前（马），有限的支持存在的生态限制。重建的多样性轨迹接近源-汇平衡多样性转移之前，并保持远低于一个新的转移驱动的升高平衡之后。我们发现足够的权力，以确定增加的殖民化率高达1.5马，而灭绝掩盖了信号的早期shift.Main conclusionsThe鱼类多样性动态的琵琶湖的面积和深度的变化和arrhogenies进行签名，这些变化。在琵琶湖扩大后，发现的定殖率增加，提高了鱼类多样性，是不可能的，因为预计生态限制的增加反馈到定殖率。因此，我们呼吁（额外的）解释：目标效应，即较大的岛屿吸引更多的物种，并减少环境过滤，由于更高的栖息地多样性与增加湖泊面积/深度。
AimRates of colonization, speciation and extinction determine species richness and endemism in insular systems. The general dynamic model of island biogeography (GDM) predicts that speciation and extinction rates depend on island area and elevation via their control on ecological limits to diversification and therefore covary with an island's geological history. Additionally, the colonization rate may increase with area and elevation through the ‘target effect’, which can be mediated by reduced ‘environmental filtering’. Here we test whether the area and depth expansion of an island‐like ecosystem, a lake, caused a shift in diversity dynamics.LocationLake Biwa, Japan, whose geological history and biota are well documented.TaxonFishes.MethodsWe extended the phylogenetic island biogeography framework DAISIE (Dynamic Assembly of Island biota through Speciation, Immigration and Extinction) to accommodate time‐shifts in macroevolutionary rates and in carrying capacity. Using phylogenetic information on colonization and speciation times for the complete Lake Biwa fish community (70 taxa), we tested for a shift in macroevolutionary assembly rates and reconstructed the temporal diversity trajectory in the lake. We assessed the power to identify a shift through a wide range of scenarios and benchmarked against simulated fossil records.ResultsWe detected an increase in colonization rate of fishes at 0.2 million years ago (Ma), with limited support for the existence of ecological limits. The reconstructed diversity trajectory was close to a source‐sink equilibrium diversity prior to the shift and remained well below a new shift‐driven elevated equilibrium thereafter. We found sufficient power to identify an increase in colonization rate up to 1.5 Ma, whereas extinction concealed the signal of earlier shifts.Main conclusionsThe fish diversity dynamics of Lake Biwa show a response to changes in area and depth and phylogenies carry a signature of these changes. The detected increase in colonization rate following Lake Biwa's expansion, elevating the fish diversity, is unlikely due to a predicted increase in ecological limits feeding back on colonization rate. We therefore call for (additional) explanations: the target effect, whereby larger islands attract more species, and reduced environmental filtering due to higher habitat diversity associated with increased lake area/depth.
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影响因子：
8.8
作者：
J. Rosindell;Albert B. Phillimore
通讯作者：
J. Rosindell;Albert B. Phillimore
DOI：
10.1073/pnas.1115835109
发表时间：
2012-04-24
影响因子：
11.1
作者：
Jonsson, Knud A.;Fabre, Pierre-Henri;Irestedt, Martin
通讯作者：
Irestedt, Martin
DOI：
10.1038/s41559-016-0026
发表时间：
2017-01
期刊：
Nature Ecology &Evolution
影响因子：
--
作者：
Luis Valente;R. Etienne;Liliana M. Dávalos
通讯作者：
Luis Valente;R. Etienne;Liliana M. Dávalos
日本琵琶湖地区的构造和气候记录，由上新世以来沉积的沉积物提供
DOI：
--
发表时间：
1990
期刊：
影响因子：
--
作者：
K. Takemura
通讯作者：
K. Takemura
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
N. Okuda;Katsutoshi Watanabe;Kayoko Fukumori;S. Nakano;T. Nakazawa
通讯作者：
T. Nakazawa