我该留下还是走?稀疏与茂密草地中无飞灌木蟋蟀运动模式的比较

IF 1.3 4区 环境科学与生态学 Q3 ECOLOGY
Szabolcs Varga , Zoltán Kenyeres
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引用次数: 0

摘要

本文研究了一种大型无飞灌木蟋蟀(Isophya costata)的运动模式,该蟋蟀发生在一个以矮疏草为主的区域和一个以高草为主的完全覆盖区域。两种草地各放生雄性10只,雌性10只,随访15 d。野外数据表明,草地类型对雌性的日常活动无显著影响;在这两种类型的栖息地,它们每天移动6-7米。矮草地斑块雄性的日移动量(11 ~ 12 m/d)显著高于高草地斑块(6 m/d)。移动模式的形状和面积表明,雄性和雌性都从矮植被向高植被迁移。而高寒草原男女的移动模式形状都接近圆形,表明其移动几乎是随机行走。在较短的草地斑块中,雄性的移动距离大于雌性,而在高草覆盖的区域,两性的移动距离相同。随机行走模型利用雄性和雌性的平均日移动量,可以描述在矮草区和高草区观察到的放生运动模式。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Should I stay or should I go? Comparison of movement patterns of a flightless bush-cricket in sparse versus dense grassland
We investigated the movement patterns of a large-bodied flightless bush-cricket, Isophya costata, occurring in a site that had an area of mainly short sparse grasses and an adjacent area of mainly taller grass with complete cover. In each of the two types of grassland, 10 males and 10 females were released and followed for 15 days. The field data showed that the grassland type did not significantly affect the daily movement activity of females; they moved 6–7 m/day in both types of habitat. However, the daily movement of males was significantly higher (11–12 m/day) in the short grassland patches than in tall patches (6 m/day). The shape and the area of the movement patterns showed that both males and females migrated from short vegetation towards high vegetation. However, the shape of the movement pattern of high grassland is nearly circular for both sexes, which indicates that the movement is almost a random walk. In the short grassland patch, males moved over a larger distances than females, while in the area covered by tall grass, both sexes moved over the same distances. Using the average daily movements of males and females, the random walk model can describe the observed movement patterns for releases in both the short and tall grass areas.
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来源期刊
CiteScore
3.60
自引率
0.00%
发文量
57
审稿时长
>0 weeks
期刊介绍: Acta Oecologica is venue for the publication of original research articles in ecology. We encourage studies in all areas of ecology, including ecosystem ecology, community ecology, population ecology, conservation ecology and evolutionary ecology. There is no bias with respect to taxon, biome or geographic area. Both theoretical and empirical papers are welcome, but combinations are particularly sought. Priority is given to papers based on explicitly stated hypotheses. Acta Oecologica also accepts review papers.
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