帝企鹅种群对环境变化响应的时空等效性

IF 3.7 1区 环境科学与生态学 Q1 ECOLOGY
Bilgecan Şen, Christian Che-Castaldo, Michelle A. LaRue, Kristen M. Krumhardt, Laura Landrum, Marika M. Holland, Heather J. Lynch, Karine Delord, Christophe Barbraud, Stéphanie Jenouvrier
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引用次数: 0

摘要

人口生态学和生物地理学的应用通常需要在空间和/或时间维度上转移模型,以便在用于模型拟合的数据范围之外进行预测。然而,生态数据往往是时空不平衡的,空间或时间维度往往比其他维度包含更多的数据。这种不平衡经常导致模型转移成为替代,这是对不同维度的预测,而不是建立预测模型。尽管替代在生态学中普遍存在,但验证其性能及其潜在假设的研究很少。本文以帝企鹅(Aptenodytes forsteri)为重点物种,展示了空间换时间和时间换空间替代(TFSS)方法。利用基于丰度的物种分布模型(aSDM)对50个种群的成年帝企鹅在春季的出勤情况进行分析,我们预测了单个种群Pointe gsamuologie羽翼丰度和繁殖成功率的长期年度波动。随后,我们从扩展计数的时间序列中构建统计模型来预测50个菌落的平均菌落丰度分布。我们的分析表明,到最近开放水域的距离(NOW)与时间和空间数据的相关性最强。通过Pearson相关系数测量,aSDM在预测繁殖成功和羽翼丰度时间序列时的时空替代性能分别为0.63和0.56。对NOW上羽翼丰度的线性回归对帝企鹅种群丰度分布的预测具有相似的TFSS性能,相关系数为0.58。我们认为,出现这种时空等价的原因是:(1)帝企鹅群体符合其现有的基本生态位;(2)与最近开放水域的距离时空变化比较,尚不存在环境新颖性;(3)生活史中更具体组成部分的模型,如初生丰度,而不是总体丰度,更具有可移植性。在缺乏直接验证数据的情况下,经验地识别这些条件可以增强替代的定性验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change

Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change

Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change

Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change

Temporal and spatial equivalence in demographic responses of emperor penguins (Aptenodytes forsteri) to environmental change

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来源期刊
Journal of Animal Ecology
Journal of Animal Ecology 环境科学-动物学
CiteScore
9.10
自引率
4.20%
发文量
188
审稿时长
3 months
期刊介绍: Journal of Animal Ecology publishes the best original research on all aspects of animal ecology, ranging from the molecular to the ecosystem level. These may be field, laboratory and theoretical studies utilising terrestrial, freshwater or marine systems.
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