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도심지 열대야 및 빛공해에 의한 매미 울음 영향

Effects of Tropical Night and Light Pollution on Cicadas Calls in Urban Areas

  • 기경석 (상지대학교 친환경식물학부 원예조경학전공, 소리경관생태학 연구실) ;
  • 김지연 (상지대학교 대학원 응용식물과학과 원예조경학전공) ;
  • 윤기상 (세종과학예술영재학교) ;
  • 이재윤 (상지대학교 친환경식물학부 원예조경학전공, 소리경관생태학 연구실)
  • Ki, Kyong-Seok (Dept. of Horticulture and Landscape Architecture, Soundscape Ecology Laboratory, Sangji Univ.) ;
  • Gim, Ji-youn (Dept. of Applied Plant Science, Graduate School of Sangji Univ.) ;
  • Yoon, Ki-Sang (Sejong Academy of Science and Arts) ;
  • Lee, Jae-Yoon (Dept. of Horticulture and Landscape Architecture, Soundscape Ecology Laboratory, Sangji Univ.)
  • 투고 : 2016.04.24
  • 심사 : 2016.08.22
  • 발행 : 2016.08.30

초록

지금까지 매미 울음에 영향을 미치는 환경요인에 관한 연구는 많지 않으며 특히 야간에 우는 매미에 대한 이해는 매우 부족한 상황이다. 따라서 본 연구는 도심지 열대야 및 빛 공해가 매미 울음에 영향을 미치는지 밝히는데 그 목적이 있다. 연구대상지는 서울시 서초구 아파트단지와 원주시 치악산국립공원이었다. 연구 대상종은 여름철 우점종인 참매미와 말매미를 선정하였다. 매미 울음은 7~8월 사이에 아파트단지는 25일간, 치악산은 14일간, 매일 24시간 녹음하였다. 매미 울음에 영향을 미치는 환경요인은 기온, 강수량, 습도, 일조량을 선정하였다. 통계분석은 시간당 울음, 24시간 울음, 야간 울음(21:00~04:00)의 세 가지 항목과 기상요인과의 상관관계를 분석하였다. 분석 결과 첫번째, 참매미는 아침 여명기에 울음을 시작하고 이른 아침에 울음의 피크를 이루며, 말매미는 오전과 오후에 울음의 피크를 형성하고 저녁 여명기에 울음을 멈추어 두 종간 울음 패턴의 차이가 있었다. 두 번째, 참매미는 말매미가 본격적으로 울기 시작하면 울음 빈도가 낮아져 종간 영향을 미칠 가능성이 높은 것으로 나타났다. 세 번째, 참매미와 말매미 울음과 기상요인과의 상관관계 분석결과, 두 종 모두 기온이 높을수록 많이 울고 비가 오는 날은 적게 우는 경향을 나타내었다. 네 번째, 야간으로 한정해 보았을 때, 말매미는 야간의 온도가 높을 때($24^{\circ}C{\sim}30^{\circ}C$, 평균 $27^{\circ}C$) 우는 데 반해, 참매미는 기상요인과는 상관관계를 나타내지 않았다. 그러나 참매미는 조명이 있는 지역에서만 야간에 울고 있어 빛공해가 원인으로 추정되었다.

Environmental factors that affect the singing of cicadas have not been studied extensively, especially those affecting the cicadas' singing during the nighttime. Therefore, the objective of this study is to identify the effects of tropical night and light pollution on the cicadas' singing in a downtown area. The study sites were an apartment complex in Seocho-gu, Seoul, and the Chiaksan National Park in Wonju-si. The study subjects were Hyalessa fuscata and Cryptotympana atrata, which are the dominant species in Korea during summer. Cicada songs were recorded 24 hours a day, every day. The recording period was between July and August, lasting 25 days at the Seoul site and 14 days at the Chiaksan National Park. Temperature, precipitation, humidity, and amount of sunshine were selected as the environmental factors that potentially affect the cicadas' singing. Statistical analyses included correlations of meteorological factors with the cicadas' singing per hour, per 24 hours, and at nighttime (21:00~04:00). The results showed that: 1) H. fuscata began singing during the dawn hours, and the singing increased in intensity early in the morning. C. atrata's singing reached its peak in the morning and afternoon, ceased during sunset hours, thereby exhibiting a difference in the singing pattern of the two species. 2) The frequency of singing by H. fuscata decreased when C. atrata began to sing intensively in numbers, thereby exhibiting interspecific influence. 3) The results of the correlation analysis between meteorological factors and the singing of H. fuscata and C. atrata showed that both species tended to sing more when the temperature was higher and sang less on rainy days. 4) When limited to nighttime only, C. atrata showed a tendency of singing when the nighttime temperature was high ($24-30^{\circ}C$, average $27^{\circ}C$), whereas H. fuscata did not show a correlation with meteorological factors. However, since H. fuscata sang during the night in areas with artificial lighting, it was concluded that its singing was due to light pollution.

키워드

참고문헌

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