Big-brained alien birds tend to occur climatic niche shifts through enhanced behavioral innovation.

IF 3.5 1区 生物学 Q1 ZOOLOGY Integrative zoology Pub Date : 2024-06-13 DOI:10.1111/1749-4877.12861
Long Jin, Ying Jiang, Lixia Han, Xiaofeng Luan, Xuan Liu, Wenbo Liao
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Abstract

Identifying climatic niche shift and its influencing factors is of great significance in predicting the risk of alien species invasions accurately. Previous studies have attempted to identify the factors related to the niche shift of alien species in their invaded ranges, including changes in introduction history, selection of exact climate predictors, and anthropogenic factors. However, the effect of species-level traits on niche shift remains largely unexplored, especially those reflecting the species' adaptation ability to new environments. Based on the occurrence data of 117 successful alien bird invaders at a global scale, their native and invaded climatic niches were compared, and the potential influencing factors were identified. Our results show the niche overlap was low, with more than 75% of the non-native birds representing climatic niche shift (i.e. >10% niche expansion). In addition, 85% of the species showed a large proportion (mean ± SD, 39% ± 21%) of niche unfilling. Relative brain size (RBS) after accounting for body size had no direct effect on niche shift, but path analysis showed that RBS had an indirect effect on niche shift by acting on behavioral innovation primarily on technical innovation rather than consumer innovation. These findings suggested the incorporation of species' important behavioral adaptation traits may be promising to develop future prediction frameworks of biological invasion risk in response to the continued global change.

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大脑袋的外来鸟类往往会通过加强行为创新来实现气候生态位的转变。
确定气候生态位变化及其影响因素对外来物种入侵风险的准确预测具有重要意义。以往的研究试图找出外来物种在其入侵地区的生态位转移的相关因素,包括引入历史的变化、精确气候预测因子的选择以及人为因素。然而,物种水平的性状对生态位转移的影响在很大程度上仍未得到探讨,尤其是那些反映物种对新环境适应能力的性状。基于全球范围内117种成功入侵的外来鸟类的发生数据,比较了它们的原生和入侵气候壁龛,并确定了潜在的影响因素。结果表明,外来鸟类的生态位重叠率很低,超过 75% 的外来鸟类代表了气候生态位的转移(即生态位扩大 >10%)。此外,85%的物种表现出较大比例(平均值±标准差,39%±21%)的生态位未填补。在考虑了体型因素后,相对脑大小(RBS)对生态位转移没有直接影响,但路径分析显示,RBS通过对行为创新(主要是技术创新而非消费创新)的作用,对生态位转移产生了间接影响。这些研究结果表明,将物种的重要行为适应特征纳入未来的生物入侵风险预测框架,以应对持续的全球变化,可能会大有可为。
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来源期刊
CiteScore
6.40
自引率
12.10%
发文量
81
审稿时长
>12 weeks
期刊介绍: The official journal of the International Society of Zoological Sciences focuses on zoology as an integrative discipline encompassing all aspects of animal life. It presents a broader perspective of many levels of zoological inquiry, both spatial and temporal, and encourages cooperation between zoology and other disciplines including, but not limited to, physics, computer science, social science, ethics, teaching, paleontology, molecular biology, physiology, behavior, ecology and the built environment. It also looks at the animal-human interaction through exploring animal-plant interactions, microbe/pathogen effects and global changes on the environment and human society. Integrative topics of greatest interest to INZ include: (1) Animals & climate change (2) Animals & pollution (3) Animals & infectious diseases (4) Animals & biological invasions (5) Animal-plant interactions (6) Zoogeography & paleontology (7) Neurons, genes & behavior (8) Molecular ecology & evolution (9) Physiological adaptations
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