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Habitat preference of the bullfrog tadpoles in relation to predation risk

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    KNU IFS 2018 Annual International Symposium of Institute of Forest Science (2018.09)바로가기
  • 페이지
    pp.36-37
  • 저자
    Ming Feng Chuang, Minjee Choe, Hakyung Kang, Amaël Borzée, Yikweon Jang
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450157

원문정보

초록

영어
Predation risk is one of the important forces that driving the evolution of prey behavior. Effectively avoiding predators can increase the survival rate and fitness of prey itself, which is also beneficial when an alien species invading into a new environment. In South Korea, bullfrog is an invasive anuran, we conducted experiments on bullfrog tadpoles to evaluate the functions and behavioral adjusting capability of micro-habitat preference. In first experiment, survival rate of tadpoles was highest in submerged vegetation (75.0%, n=20), which was significantly higher than that in the micro-habitat without vegetation (45%, n=20), and the survival rate in emerged vegetation was 50% (n=20), which did not significantly differ from other two treatments. Results shows that submerged vegetation functions as a shelter that reducing predation risks. In second experiment, most of tadpoles preferred staying longer (77.50±29.26% of observation) in submerged vegetation, which was higher than expectation of 50% (t19=4.20,p<0.001). This frequency that tadpole stay in emerged vegetation treatment was 59.17±21.10%, which did not differ from expectation (t19=1.94,p=0.067).The frequency that tadpole staying in submerged vegetation was higher than that in emerged vegetation(t38=-2.27,p=0.029).This results indicated that bullfrog tadpoles tend to stay in vegetation, especially the submerged vegetation. In last experiment, we repeated second experiment by using wounded tadpoles. Tadpoles stay in submerged vegetation increased to 84.58±22.99%, but it did not increase significantly (t38=-0.85,p=0.400) than previous results. The frequency that tadpole stay in emerged vegetation was 77.5±17.54%, which was higher than that in second experiment (t38=-2.99,p=0.005). Results in third experiment indicating that bullfrog tadpoles have the ability to adjust the avoidance behavior according to previous experiences. In summary, bullfrog tadpoles tend to stay in submerged vegetation which functions as a predation-free refuge, and adjust their anti-predation behavior depending on conditions.

키워드

Behavioral ecology Conservation biology Invasive species Prey-predator interaction Lithobates catesbeianus

저자

  • Ming Feng Chuang [ Division of EcoScience, Ewha Womans University ]
  • Minjee Choe [ Division of EcoScience, Ewha Womans University ]
  • Hakyung Kang [ Division of EcoScience, Ewha Womans University, Department of Animal Science & Technology, Konkuk University ]
  • Amaël Borzée [ Division of EcoScience, Ewha Womans University ]
  • Yikweon Jang [ Division of EcoScience, Ewha Womans University ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

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