DOI QR코드

DOI QR Code

Induction of Conditioned Taste Aversion to Korean Pine Nuts (Pinus koraiensis) Treated with Lithium Chloride in Red Squirrels (Sciurus vulgaris)

  • Kim, Eui-Kyeong (Division of Forest Resources, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Kim, Won-Myeong (Ecosystem Assessment Division, Nature and Ecology Research Department, National Institute of Environmental Research) ;
  • Park, Yung-Chul (Division of Forest Resources, College of Forest & Environmental Sciences, Kangwon National University) ;
  • Yoo, Byung-Ho (Ecological Restoration Division, Nature and Ecology Research Department, National Institute of Environmental Research) ;
  • Kim, Jong-Kuk (Division of Forest Resources, College of Forest & Environmental Sciences, Kangwon National University)
  • Published : 2008.11.30

Abstract

We investigated the responses of red squirrels to pine nuts (Pinus koraiensis) treated with Lithium Chloride (LiCl) and the potential of the chemical for inducing conditioned taste aversion (CTA) in red squirrels. In red squirrels, nut feeding declined dramatically during the first 4 days after feeding with LiCl-treated nuts. The ratio of LiCl-treated nuts eaten to total nuts eaten declined from the $1^{st}$ day in LC-1 and the $2^{nd}$ day in LC-2, along with a general reduction in quantity eaten. Thus, feeding with LiCl-treated nuts induced CTA from the 2nd day after feeding, and CTA remained constant until the $4^{th}$ day, but disappeared on the $5^{th}$ day. The squirrels ate an average of $757.0{\pm}106.1mg$ (n = 2, range $682.0\sim832.0$) of LiCl before dying on the $16^{th}$ day of the study. The lethal dose of LiCl was 2.32 mg LiCl/g body weight, and the average amount of LiCl needed to induce CTA was $23.0{\pm}4.24mg$ (20 mg in LC-1 and 26 mg in LC-2).

Keywords

References

  1. Garcia J, Hankins WG, Rusiniak K. 1974. Behavioural regulation of the milieu interne in man and rat. Science 184: 581-583 https://doi.org/10.1126/science.184.4136.581
  2. Gentle M, Massei G, Quy R. 2006. Diversity of diet influences the persistence of conditioned taste aversion in rats. Appl Anim Behav Sci 97: 303-311 https://doi.org/10.1016/j.applanim.2005.08.005
  3. Han SU, Yi JS. 1996. Age-age correlation for height growth of openpollinated progenies of Pinus koreaiensis in relation to their cone and seed characteristics. Korean J Breed 28: 63-68
  4. Jaeger TV, Mucha RF. 1990. A taste aversion model of drug discrimination learning: training drug and condition influence rate of learning, sensitivity and drug specificity. Psychopharmacology 100: 145-150 https://doi.org/10.1007/BF02244397
  5. KFS (Korea Forest Service). 2007. Statistical yearbook of forestry 37: 306-307
  6. Massei G, Lyon AJ, Cowan DP. 2002. Conditioned taste aversion can reduce egg predation by rats. J Wildl Manage 66: 1134-1140 https://doi.org/10.2307/3802945
  7. Mucha RF, Herz A. 1985. Motivational properties of kappa and mu opioid receptor agonists studied with place and taste preference conditioning. Psychopharmacology 86: 274-280 https://doi.org/10.1007/BF00432213
  8. Prendergast MA, Hendricks SE, Yells DP, Balogh S. 1996. Conditioned taste aversion induced by fluoxetine. Physiol Behav 60: 311-315 https://doi.org/10.1016/0031-9384(95)02234-1
  9. Song YH, Yun CW. 2006. Community type and stand structure of the Korean pine (Pinus koreaiensis) natural forest in Seoraksan National Park. Kor J Env Eco 20: 29-40. (in Korean with English abstract)
  10. Welzl H, D'Adamo P, Lipp HP. 2001. Conditioned taste aversion as a learning and memory paradigm. Behav Brain Res 125: 205-213 https://doi.org/10.1016/S0166-4328(01)00302-3
  11. Yi JS, Song JH, Park MH, Han SUr. 1999. Crown shape control of Pinus koraiensis S. et Z. (III)-Crown shape types for seed and timber production from the trees under age Class III. Jour Korean For Soc 88: 195-204. (in Korean with English abstract)