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| DOI | https://doi.org/10.1594/PANGAEA.841125 |
| Sampling sites, sampled birds and plants of young larch plantations in Tokachi district, eastern Hokkaido, northern Japan, 2011 | |
| Yamaura; Yuichi | |
| 发布日期 | 2015-01-05 |
| 数据集类型 | dataset |
| 英文简介 | Models and data used to describe species-area relationships confound sampling with ecological process as they fail to acknowledge that estimates of species richness arise due to sampling. This compromises our ability to make ecological inferences from and about species-area relationships. We develop and illustrate hierarchical community models of abundance and frequency to estimate species richness. The models we propose separate sampling from ecological processes by explicitly accounting for the fact that sampled patches are seldom completely covered by sampling plots and that individuals present in the sampling plots are imperfectly detected. We propose a multispecies abundance model in which community assembly is treated as the summation of an ensemble of species-level Poisson processes and estimate patch-level species richness as a derived parameter. We use sampling process models appropriate for specific survey methods. We propose a multispecies frequency model that treats the number of plots in which a species occurs as a binomial process. We illustrate these models using data collected in surveys of early-successional bird species and plants in young forest plantation patches. Results indicate that only mature forest plant species deviated from the constant density hypothesis, but the null model suggested that the deviations were too small to alter the form of species-area relationships. Nevertheless, results from simulations clearly show that the aggregate pattern of individual species density-area relationships and occurrence probability-area relationships can alter the form of species-area relationships. The plant community model estimated that only half of the species present in the regional species pool were encountered during the survey. The modeling framework we propose explicitly accounts for sampling processes so that ecological processes can be examined free of sampling artefacts. Our modeling approach is extensible and could be applied to a variety of study designs and allows the inclusion of additional environmental covariates. |
| 空间范围 | Latitude: 42.900000 * Longitude: 143.700000 |
| 时间范围 | 2011-01-01T00:00:00 - 2011-01-01T00:00:00 |
| 语种 | 英语 |
| 国家 | 国际 |
| 学科大类 | 气候变化 |
| 学科子类 | 气候变化 |
| 文献类型 | 数据集 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/215476 |
| 推荐引用方式 GB/T 7714 | Yamaura,Yuichi. Sampling sites, sampled birds and plants of young larch plantations in Tokachi district, eastern Hokkaido, northern Japan, 2011.2015-01-05.https://doi.org/10.1594/PANGAEA.841125. |
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