Importance of regional species pools and functional traits in colonization processes: predicting re-colonization after large-scale destruction of ecosystems
Importance of regional species pools and functional traits in colonization processes: predicting re-colonization after large-scale destruction of ecosystems
复制标题
区域物种库和功能特征在殖民化过程中的重要性：预测生态系统大规模破坏后的重新殖民化
DOI：
10.1111/j.1365-2664.2008.01529.x
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发表时间：
2008
影响因子：
5.7
通讯作者：
J. M. Groenendael
中科院分区：
文献类型：
--
作者：
A. Kirmer;S. Tischew;W. Ozinga;M. Lampe;A. Baasch;J. M. Groenendael
摘要1.地表采矿对生态系统造成的大规模破坏为研究从原生演替开始的殖民过程提供了机会。令人惊讶的是，几十年来，在没有任何恢复措施的情况下，这些遗址中的大多数自发地发展成为有价值的生物群落镶嵌区，其中有许多濒危植物物种。2.在10个露天矿进行了调查。对矿区及其周围地区进行广泛的植物区系制图所得数据与功能性状相结合。3.使用二进制逻辑回归，我们发现，八个变量有显着的影响，在采矿现场的特定植物物种的发生概率。区域物种库解释的方差比例最高。进一步显着的变量是源种群的距离，丰富的栖息地物种池，能力远距离传播的风和鸟类，终端速度的种子和光和氮的需求。4.在10个研究矿址中，记录了143个红色名录物种的建立事件。对于这些建立事件中的40%，最近的记录种子源距离3 - 10 km，而对于19%，最近的种子源距离超过10 km。5.这项研究首次表明，在生态系统遭到大规模破坏后，至少17公里范围内的物种丰富度在殖民过程中发挥着重要作用。在大规模的、营养缺乏的、开放的地点，可以预期在符合规划的时间范围内（几十年）植物物种，包括稀有物种的积累，因为这些地点在景观中充当了巨大的种子陷阱。6.合成与应用。恢复地的植物区系定殖概率越高，如果大规模，开放和营养贫乏的栖息地。在这些生境高度分散的地区，支持创造这种条件的受破坏土地（例如露天矿、采石场、垃圾填埋场）的恢复规划可有助于稀有先驱物种的区域生存。在未来的恢复规划，必须建立一个新的协议，结合利用现场的潜力与自发殖民过程。
Summary 1. Large-scale destruction of ecosystems caused by surface mining provides an opportunity for the study of colonization processes starting with primary succession. Surprisingly, over several decades and without any restoration measures, most of these sites spontaneously developed into valuable biotope mosaics with many endangered plant species. 2. Investigations were carried out in 10 open-cast mined sites. Data from extensive floristic mapping of mined sites and their surroundings were combined with functional traits. 3. Using binary logistic regression, we showed that eight variables have a significant influence on the probability of the occurrence of particular plant species in mined sites. The regional species pool explained the highest proportion of variance. Further significant variables were distance of source populations, abundance in the habitat species pool, capacity for long-distance dispersal by wind and birds, terminal velocity of seeds and requirements for light and nitrogen. 4. In the 10 study mine sites, 143 establishing events of Red List species have been recorded. For 40% of these establishing events, the nearest recorded seed source is 3‐10 km away, while for 19%, the distance to the nearest seed source exceeds 10 km. 5. This study showed for the first time that the abundance of species up to a distance of at least 17 km plays an important role in colonization processes following large-scale destruction of ecosystems. In large-scale, nutrient-deficient, open sites, an accumulation of plant species, including rare species, can be expected in time frames amenable to planning (several decades), because the sites acted as huge seed traps in the landscape. 6. Synthesis and applications . The floristic colonization probability of restoration sites is higher if large-scale, open and nutrient-poor habitats are available. In regions where such habitats have become highly fragmented, restoration planning of derelict land (e.g. surface mines, quarries, landfills) that supports the creation of such conditions can contribute to the regional survival of rare pioneer species. In future restoration planning, a new protocol must be established that combines the utilization of site potential with spontaneous colonization processes.