2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/23/2018 | 9:45 AM - 10:00 AM | STREAM MACROINVERTEBRATE COMMUNITIES IN THE JAPANESE ALPS IN A CHANGING CLIMATE AND INFLUENCE OF SNOW MONKEYS | 420 A
STREAM MACROINVERTEBRATE COMMUNITIES IN THE JAPANESE ALPS IN A CHANGING CLIMATE AND INFLUENCE OF SNOW MONKEYS
Alpine areas are sensitive to climate change and predictions for Japan’s mountainous areas indicate river discharge will alter significantly due to increased rainfall and decreased snowmelt in early spring. Our research was focused in Kamikochi National Park in the Japanese Alps where 6 tributary sites of the main Asuza River were studied, three fed by groundwater and three fed by snowmelt. Water samples were collected monthly and ionic tracers used to quantify the percent contribution from the different water sources and temporal changes. Water temperature and discharge were monitored continuously at each site to characterize physicochemical habitat and macroinvertebrate collected monthly. Water temperature in the groundwater streams was virtually constant at 5 0C whereas the snowmelt streams varied from 2 to 13.5 0C. Macroinvertebrate diversity was similar between streams but abundance was significantly higher in the groundwater streams. However two snowmelt streams dried up during the summer and when rewetted abundance was very low although taxa diversity was not significantly reduced. Snow monkeys (Macaca fuscata) have been observed to feed on aquatic invertebrates in winter, when other food sources are low, and their diet was investigated using eDNA.
- Biodiversity
- Climate Change
- Community
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Presenters/Authors
Victoria Milner
(), University of Worcester, v.milner@worc.ac.uk;
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Catherine Docherty
(), University of Birmingham, catherine.l.docherty@gmail.com;
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Koji Tojo
(), Biology Department, Faculty of Science, Shinshu University, Japan , ktojo@shinshu-u.ac.jp;
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Susie Wood
(), Cawthron Institute, Susie.Wood@cawthron.org.nz ;
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