当前位置：
X-MOL 学术
›
J. Appl. Ecol.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Immigration credit of temperate forest herbs in fragmented landscapes—Implications for restoration of habitat connectivity
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2021-08-23 , DOI: 10.1111/1365-2664.13975 Jörg Brunet 1 , Per‐Ola Hedwall 1 , Jessica Lindgren 2 , Sara A. O. Cousins 2
中文翻译：
支离破碎景观中温带森林草本植物的移民信用——对栖息地连通性恢复的影响
更新日期：2021-10-06
Journal of Applied Ecology ( IF 5.0 ) Pub Date : 2021-08-23 , DOI: 10.1111/1365-2664.13975 Jörg Brunet 1 , Per‐Ola Hedwall 1 , Jessica Lindgren 2 , Sara A. O. Cousins 2
Affiliation
|
- In many agricultural landscapes, it is important to restore networks of forests to provide habitat and stepping stones for forest specialist taxa. More knowledge is, however, needed on how to facilitate the immigration of such taxa in restored forest patches. Here, we present the first chronosequence study to quantify the dynamics of immigration credits of forest specialist plants in post-arable forest patches.
- We studied the distribution of herbaceous forest specialist plant species in 54 post-arable broadleaved forest patches along gradients of age (20–140 years since forest establishment), distance from ancient forest (0–2,600 m) and patch area (0.5–9.6 ha). With linear mixed models, we estimated the effects of these factors on species richness, patch means of four dispersal-related plant traits and with generalized linear models on the occurrence of 20 individual species.
- Post-arable forest patch age and spatial isolation from ancient forest, but not patch size, were important predictors for species richness of forest specialists, suggesting that also small patches are valuable for habitat connectivity. Compared to species richness in ancient forest stands, the immigration credit was reduced by more than 90% after 80 years in post-arable forest patches contiguous to ancient forest compared to 40% after 80 years and 60% after 140 years in isolated patches (at least 100 m to next forest). Tall-growing species with adaptations to long-distance dispersal were faster colonizers, whereas species with heavy diaspores and clonal growth were slower to colonize.
- Synthesis and applications. We show that post-arable oak plantations have a high potential for restoration of forest herb vegetation. Dispersal-related plant traits play a key role in explaining interspecific differences among forest specialists. To facilitate forest herb immigration across all functional groups in agricultural landscapes, we suggest to create clusters of relatively small new forest patches nearby older forest with source populations.
中文翻译：
支离破碎景观中温带森林草本植物的移民信用——对栖息地连通性恢复的影响
- 在许多农业景观中，重要的是恢复森林网络，为森林专家类群提供栖息地和垫脚石。然而，需要更多的知识来了解如何促进这些分类群在恢复的森林斑块中的迁移。在这里，我们提出了第一个时间序列研究，以量化后耕地森林斑块中森林专业植物的移民信用动态。
- 我们研究了 54 个后耕地阔叶林斑块中草本森林特殊植物物种的分布，这些斑块随年龄梯度（森林建立后 20-140 年）、距古森林的距离（0-2600 米）和斑块面积（0.5-9.6 公顷） ）。使用线性混合模型，我们估计了这些因素对物种丰富度、四种传播相关植物性状的斑块均值的影响，并使用广义线性模型对 20 个个体物种的发生情况进行了估计。
- 后耕地森林斑块年龄和与古森林的空间隔离，但不是斑块大小，是森林专家物种丰富度的重要预测因子，这表明小斑块对于栖息地连通性也很有价值。与古老林分的物种丰富度相比，与古老森林相邻的后耕地林斑在 80 年后的移民信用减少了 90% 以上，而在孤立斑块（在到下一个森林至少 100 m）。适应长距离传播的高大生长物种是较快的殖民者，而具有大量水铝石和无性系生长的物种殖民较慢。
- 合成与应用。我们表明，后耕地橡树种植园具有恢复森林草本植被的巨大潜力。与扩散相关的植物性状在解释森林专家之间的种间差异方面起着关键作用。为了促进农业景观中所有功能组的森林药草迁移，我们建议在具有源种群的旧森林附近创建相对较小的新森林斑块集群。
京公网安备 11010802027423号