Latitude shapes diel patterns in insect biodiversity.

IF 3 2区 生物学 Q2 BIOLOGY
Biology Letters Pub Date : 2025-04-01 Epub Date: 2025-04-30 DOI:10.1098/rsbl.2024.0622
Mark K L Wong
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Abstract

The writings of naturalists from two centuries past are brimming with accounts of the stark differences in the kinds and numbers of organisms encountered during the day and night as well as between the tropical and temperate zones. However, only recently have ecologists begun to systematically explore the geographic variation in the diel activity patterns of species on Earth. Examining data from 60 insect communities distributed globally, I find that the proportion of nocturnal species in a community declines from a peak of 36% at the equator to 8% at 60° latitude, while the proportion of diurnal species shows no significant trend. By contrast, the proportion of cathemeral (day- and night-active) species in a community increases poleward from 18% to 68% along the same gradient. These latitudinal trends in the partitioning of diel activity time among co-occurring insect species in communities broadly reflect previously documented biogeographic patterns in the global distributions of vertebrate species occupying different temporal niches. Since diel activity patterns shape insect community dynamics, uncovering their mechanistic basis and the roles of factors such as temperature, light and biotic interactions is vital for curbing insect declines in the Anthropocene.

纬度决定了昆虫生物多样性的变化模式。
两个世纪前的博物学家的著作中,充斥着关于白天和晚上所遇到的生物种类和数量的明显差异,以及热带和温带之间的差异。然而,直到最近,生态学家才开始系统地探索地球上物种死亡活动模式的地理差异。通过对全球60个昆虫群落的数据分析,我发现夜间活动的物种在一个群落中的比例从赤道的峰值36%下降到60°纬度的8%,而白天活动的物种的比例没有明显的趋势。相比之下,在相同的梯度下,一个群落中花状(白天和夜间活动)物种的比例从18%增加到68%。这些在群落中共存的昆虫物种的昼夜活动时间分配的纬度趋势大致反映了先前记录的脊椎动物物种占据不同时间生态位的全球分布的生物地理格局。由于昆虫活动模式决定了昆虫群落的动态,揭示其机制基础以及温度、光照和生物相互作用等因素的作用对于抑制人类世昆虫的减少至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Biology Letters
Biology Letters 生物-进化生物学
CiteScore
5.50
自引率
3.00%
发文量
164
审稿时长
1.0 months
期刊介绍: Previously a supplement to Proceedings B, and launched as an independent journal in 2005, Biology Letters is a primarily online, peer-reviewed journal that publishes short, high-quality articles, reviews and opinion pieces from across the biological sciences. The scope of Biology Letters is vast - publishing high-quality research in any area of the biological sciences. However, we have particular strengths in the biology, evolution and ecology of whole organisms. We also publish in other areas of biology, such as molecular ecology and evolution, environmental science, and phylogenetics.
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