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Dispersers and environment drive global variation in fruit colour syndromes
Ecology Letters ( IF 8.8 ) Pub Date : 2021-04-28 , DOI: 10.1111/ele.13753
Miranda A Sinnott-Armstrong 1 , Michael J Donoghue 1 , Walter J Jetz 1, 2
Affiliation  

The colours of fleshy fruits play a critical role in plant dispersal by advertising ripe fruits to consumers. Fruit colours have long been classified into syndromes attributed to selection by animal dispersers, despite weak evidence for this hypothesis. Here, we test the relative importance of biotic (bird and mammal frugivory) and abiotic (wet season temperatures, growing season length and UV-B radiation) factors in determining fruit colour syndrome in 3163 species of fleshy-fruited plants. We find that both dispersers and environment are important, and they interact. In warm areas, contrastive, bird-associated fruit colours increase with relative bird frugivore prevalence, whereas in cold places these colours dominate even where mammalian dispersers are prevalent. We present near-global maps of predicted fruit colour syndrome based on our species-level model and our newly developed characterisations of relative importance of bird and mammal frugivores.

中文翻译:

分散剂和环境驱动水果颜色综合征的全球变化

通过向消费者宣传成熟的水果,肉质水果的颜色在植物传播中起着至关重要的作用。长期以来,水果颜色一直被归类为归因于动物传播者选择的综合症,尽管这一假设的证据不足。在这里,我们测试了生物(鸟类和哺乳动物食果)和非生物(湿季温度、生长季节长度和 UV-B 辐射)因素在确定 3163 种肉果植物果实颜色综合征方面的相对重要性。我们发现扩散器和环境都很重要,并且它们相互作用。在温暖地区,与鸟类相关的对比色水果颜色随着相对鸟类食果动物的流行而增加,而在寒冷的地方,即使在哺乳动物传播者盛行的地方,这些颜色也占主导地位。我们根据我们的物种级模型和我们新开发的鸟类和哺乳动物食果动物的相对重要性特征,展示了预测的水果颜色综合征的近乎全球地图。
更新日期:2021-06-13
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