Abstract
Thermal relations of the Indian leech,Poecilobdella viridis have been investigated. Leeches maintained at laboratory conditions (25·5°–27·5°C) were observed to have 36·65°C and 3·7°C as an upper and a lower lethal temperature respectively for 24 hr. Their 24 hr median heat tolerating capacity was elevated by 4·87°C after warm (32·0°±0·5°C) acclimation for 15 days. Ecophysiological significance of these changes toP. viridis in combating the ambient thermal fluxes has been hinted briefly.
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References
Azmatunnisa Q 1974 Biological studies in Indian pulmonate snail,Lymnaea sp.; Ph.D. thesis Marathwada University, Aurangabad
Bullock T H 1955 Compensation for temperature in the metabolism and activity of poikilotherms;Biol. Rev. 30 311–342
Dean J M and Vernberg F J 1965 Effects of temperature acclimation on some aspects of carbohydrate metabolism in decapod Crustacea;Biol. Bull. 120 87–94
Duweini A K and Ghabbour S I 1965a Population density and biomass of earthworms in different types of Egyptia soils;J. Appl. Ecol. 2 271–287
Duweini A K and Ghabbour S I 1965b Temperature relations of three Egyptian oligochaete species;Oikos 16 9–15
Edney E B 1964 Acclimation to temperature in terrestrial isopods I. Lethal temperatures;Physiol. Zool. 37 364–377
Fry F E J 1967 inThermobiology ed A H Rose (London, New York: Academic Press) 375–409
Fry F E J and Hochachka P W 1970 inComparative Physiology of Thermoregulation ed. G C Whittow (New York, London: Academic Press) Vol. 1, pp. 79–134
Grant W C 1955 Temperature relationships in the megascolid earthwormPheretima hupeiensis;Ecology 36 412–417
Hanumante M M 1975 Some aspects of Physiology of Indian earthworm; Ph.D. Thesis, Marathwada University, Aurangabad
Madge D S 1969 Field and laboratory studies on the activity of two species of tropical earthworms;Pedobiologia 9 188–214
McWhinnie M A 1967 inThermobiology ed. A H Rose (New York, London: Academic Press) pp. 535–553
Muley E V 1974 Biology of the snailMelania scabra; Ph.D. Thesis, Marathwada University, Aurangabad
Nagabhushanam R and Kulkarni A B 1970 Studies on the temperature tolerance in the slugLaevicaulis alte;Marathwada Univ. J. Sci. 9 77–81
Nagabhushanam R and Lomte V S 1970 Effect of temperature and salinity on the heat tolerance of the freshwater mussel,Parreysia corrugata;Broteria 39 211–220
Parvatheswararao V 1972 Assessment of metabolic compensation to thermal stress in poikilotherms, A critical evaluation;J. Sci. Indian Res. 31 273–278
Prosser C L 1955 Physiological variation in animals;Biol. Rev. 30 229–262
Read K R H 1967 Thermal tolerance of the bivalve molluscLima scabra bern in relation to environmental temperature;Proc. Malac. Soc. London 37 233–241
Satchell J E 1967 inSoil Biology eds A Burgess and F Raw (New York, London: Academic Press) pp. 259–322
Staszak D J and Mutchmor J A 1973a Influence of temperature on induction of chill-coma and movement of the American cockroach,Periplaneta Americana;Comp. Biochem. Physiol. A45 895–908
Staszak D J and Mutchmor J A 1973b Influence of temperature on cill-coma and the electrical activity of the central and peripheral nervous system of the American cockroachPeriplaneta americana;Comp. Biochem. Physiol. A45 909–923
*Tyler A V 1966Can. J. Zool. 44 349
Vernberg F J and Vernberg W B 1970Comparative Physiology of Thermoregulation; ed. G C Whittow (New York, London: Academic Press) Vol. 1, pp. 1–14
Weatherley A H 1970 Effects of superabundent oxygen on thermal tolerance of goldfish;Biol. Bull 139 229–238
Weatherley A H 1973 Effects of constant illumination and hyperoxia on thermal tolerance of goldfish;Comp. Biochem. Physiol. A45 891–894
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Nagabhushanam, R., Kulkarni, G.K. Thermal relations of the Indian leech,Poecilobdella viridis (Blanchard). Proc. Indian Acad. Sci. 86, 229–234 (1977). https://doi.org/10.1007/BF03050966
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DOI: https://doi.org/10.1007/BF03050966