Ecology of Floristic Quality Assessment: testing for correlations between coefficients of conservatism, species traits and mycorrhizal responsiveness.
Ecology of Floristic Quality Assessment: testing for correlations between coefficients of conservatism, species traits and mycorrhizal responsiveness.
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植物质量评估的生态学：对保守主义，物种特征和菌根反应性系数之间的相关性测试。
DOI：
10.1093/aobpla/plx073
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发表时间：
2018-03
期刊：
影响因子：
2.9
通讯作者：
Bever JD
中科院分区：
文献类型：
--
作者：
Bauer JT;Koziol L;Bever JD
保守性系数（C值）是分配给植物物种的数值，以表明它们对人为干扰的敏感性，这些值越来越多地用于确定自然保护区的优先顺序和监测恢复结果。然而，分配这些值是主观的，并且需要C值和植物物种生态之间的定量联系。我们在温室中种植了54种植物的幼苗，并测量了与生活史权衡有关的性状。我们发现这些性状与C值相关，表明保守性系数与植物物种的生活史策略密切相关。许多植物物种仅限于相对不受人为干扰的栖息地，因此保护这些未受干扰的栖息地对植物保护至关重要。保守性系数（C值）被开发为物种对人为干扰敏感性的指标，这些值被用于植物区系质量评价，作为评估自然区域和生态恢复的一种手段。然而，这些值的分配是主观的，需要改进C值的定量验证。我们测试了是否有一致的差异，在生活史的物种与高和低C值。为了做到这一点，我们在温室中种植了54种高草草原植物，并测量了与生活史策略的快-慢连续体权衡相关的特征。我们还种植了含有和不含菌根真菌的植物，以测试这些物种对这种互利共生的依赖。我们比较了这些特性和菌根的C值的反应。我们发现，我们测量的9个性状中有6个与C值相关，这些性状共同预测了C值变化的50%。性状，包括快速的增长速度和更大的投资，在繁殖与较低的C值，和缓慢的增长速度，长寿的叶子和高根冠比与较高的C值。此外，高C值和缓慢的生活史的植物更响应与菌根真菌的互惠。总的来说，我们的研究结果将C值与生活史权衡联系起来，表明高C值物种倾向于共享一套与缓慢生活史相关的特征。
Coefficients of conservatism (C values) are numeric values assigned to plant species to indicate their sensitivity to anthropogenic disturbance, and these values are increasingly used to prioritize natural areas for conservation and monitor restoration outcomes. However, assigning these values is subjective, and quantitative links between C values and a plant species' ecology are needed. We grew seedlings of 54 plant species in a greenhouse and measured traits that are related to life history trade-offs. We found that these traits were correlated with C values, indicating that coefficients of conservatism are closely linked to a plant species' life history strategy. Many plant species are limited to habitats relatively unaffected by anthropogenic disturbance, so protecting these undisturbed habitats is essential for plant conservation. Coefficients of conservatism (C values) were developed as indicators of a species’ sensitivity to anthropogenic disturbance, and these values are used in Floristic Quality Assessment as a means of assessing natural areas and ecological restoration. However, assigning of these values is subjective and improved quantitative validation of C values is needed. We tested whether there are consistent differences in life histories between species with high and low C values. To do this, we grew 54 species of tallgrass prairie plants in a greenhouse and measured traits that are associated with trade-offs on the fast-slow continuum of life-history strategies. We also grew plants with and without mycorrhizal fungi as a test of these species’ reliance on this mutualism. We compared these traits and mycorrhizal responsiveness to C values. We found that six of the nine traits we measured were correlated with C values, and together, traits predicted up to 50 % of the variation in C values. Traits including fast growth rates and greater investment in reproduction were associated with lower C values, and slow growth rates, long-lived leaves and high root:shoot ratios were associated with higher C values. Additionally, plants with high C values and a slow life history were more responsive to mutualisms with mycorrhizal fungi. Overall, our results connect C values with life-history trade-offs, indicating that high C value species tend to share a suite of traits associated with a slow life history.
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DOI：
10.1073/pnas.1315179111
发表时间：
2014-01-14
影响因子：
11.1
作者：
Adler, Peter B.;Salguero-Gomez, Roberto;Franco, Miguel
通讯作者：
Franco, Miguel
影响因子：
5
作者：
Cohen, MJ;Carstenn, S;Lane, CR
通讯作者：
Lane, CR
影响因子：
64.8
作者：
Diaz, Sandra;Kattge, Jens;Gorne, Lucas D.
通讯作者：
Gorne, Lucas D.
影响因子：
2.7
作者：
Bauer, Jonathan T.;Mack, Keenan M. L.;Bever, James D.
通讯作者：
Bever, James D.
影响因子：
5.5
作者：
Martinez-Vilalta, Jordi;Mencuccini, Maurizio;Retana, Javier
通讯作者：
Retana, Javier