Water-seeking behavior among terrestrial arthropods and mollusks in a cool mesic region: Spatial and temporal patterns.
Water-seeking behavior among terrestrial arthropods and mollusks in a cool mesic region: Spatial and temporal patterns.
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DOI：
10.1371/journal.pone.0260070
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发表时间：
2021
期刊：
影响因子：
3.7
通讯作者：
McCluney KE
中科院分区：
文献类型：
--
作者：
Becker JE;Mirochnitchenko NA;Ingram H;Everett A;McCluney KE
脱水会对动物的生理性能、生长、繁殖和生存产生负面影响，大多数动物试图通过减少水分流失或寻找水源来尽量减少这些影响。许多（但不是全部）动物水分平衡研究来自旱地生态系统。然而，居住在中部地区的动物也可能会经历干燥条件，例如在城市热岛内或在热浪和干旱期间。在这里，我们研究了不透水表面的空间变化以及微气候的时空变化如何影响俄亥俄州西北部三个地区的陆地节肢动物和软体动物的需水行为，并对表现出最大需水行为的类群进行了分析。需水行为被测量为个体在人工水源（湿润的袋子）处观察到的频率相对于在对照（干燥的袋子）处的频率。总体而言，在水源地发现陆生节肢动物和软体动物的频率约为对照的两倍（相当于每个地点湿袋的观察结果比干袋平均多 86 个），其中蚂蚁占城市地区总体响应的 50% 以上。蒸气压赤字 (VPD) 的每日波动最好地预测了需水行为的每日变化，VPD 越高，需求就会增加。城市化地区附近的平均 VPD 通常最高，但城市化地区 VPD 对需水行为的影响通常较低（可能与总体丰度的减少减少了潜在响应有关）。在某些日子里，自然区域和绿地的 VPD 很高，这与观察到的节肢动物需水量最高的行为一致。我们的研究结果表明，陆地节肢动物群落确实在中湿地区经历了需水时期，包括城市外的绿地，它们似乎对短期干旱条件有强烈反应——这一观察结果对于了解气候变化的影响具有潜在的相关性。
Dehydration can have negative effects on animal physiological performance, growth, reproduction, and survival, and most animals seek to minimize these effects by reducing water losses or seeking water sources. Much—but not all—of the research on animal water balance comes from dryland ecosystems. However, animals inhabiting mesic regions may also experience desiccating conditions, for example within urban heat islands or during heatwaves and droughts. Here we examined how spatial variation in impervious surface and spatial and temporal variation in microclimate impact water demand behavior of terrestrial arthropods and mollusks in three areas of mesic Northwest Ohio, with analysis of taxa that exhibited the greatest water demand behavior. Water demand behavior was measured as the frequency that individuals were observed at an artificial water source (a moistened pouch), relative to the frequency at a control (a dry pouch). Overall, terrestrial arthropods and mollusks were found about twice as often at the water source than at the control (equivalent to 86 more observations on the wet pouch than on dry at each site, on average), with ants accounting for over 50% of the overall response in urban areas. Daily fluctuations in vapor pressure deficit (VPD) best predicted daily variation in water demand behavior, with increased demand at higher VPD. Mean VPD was generally highest near urbanized areas, but effects of VPD on water demand behavior were generally lower in urbanized areas (possibly related to reductions in overall abundance reducing the potential response). On certain days, VPD was high in natural areas and greenspaces, and this coincided with the highest arthropod water demand behavior observed. Our results suggest that terrestrial arthropod communities do experience periods of water demand within mesic regions, including in greenspaces outside cities, where they appear to respond strongly to short periods of dry conditions—an observation with potential relevance for understanding the effects of climate change.
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影响因子：
1.1
作者：
Crandall, KA;Fetzner, JW;Buckup, L
通讯作者：
Buckup, L
影响因子：
5.2
作者：
Becker, Jamie E.;McCluney, Kevin E.
通讯作者：
McCluney, Kevin E.
影响因子：
2.2
作者：
Clissold, Fiona J.;Kertesz, Helena;Simpson, Stephen J.
通讯作者：
Simpson, Stephen J.
DOI：
10.1073/pnas.0607064103
发表时间：
2006-10-17
影响因子：
11.1
作者：
Lensing, Janet R.;Wise, David H.
通讯作者：
Wise, David H.
影响因子：
3.9
作者：
Hawkins, BA;Diniz, JAF;Soeller, SA
通讯作者：
Soeller, SA