Daphnia parvula experiences a wide range of thermal (4°-30°C) and food conditions during its annual population cycle. We used cohort life table experiments to determine the synergistic effects of temperature and food concentration on its life history parameters. A 3×3 factorial design experiments wa
The Combined Effects of Food and Temperature on the Life History Parameters of Brachionus patulusMULLER (Rotifera)
✍ Scribed by S. S. S. Sarma; T. Ramakrishna Rao
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 828 KB
- Volume
- 76
- Category
- Article
- ISSN
- 1434-2944
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✦ Synopsis
The combined effects of different levels of temperature (15". 25" and 35 "C) and food Chlorella (1,2 and 4 x 106 cells/ml) on the life history parameters (lifespan, life expectancy, net reproductive rate, intrinsic rate of increase, developmental time, and generation time) of a laboratory population of the rotifer Brachionus patulua were investigated. Both food and temperature, independently and in interaction, significantly influenced nearly all the parameters. The reproductive performance was a direct function of the food level, but the magnitude of food effect was temperature-dependent. The observed temperature x food interaction effects are explained in terms of the energetics of resource apportionment between metabolism and reproduction.
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