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| Influence of temperature on the reproductive potential of Oncholaimus oxyuris (Nematoda: Oncholaimidae) |  |
| Heip, C.H.R.; Smol, N.; Absillis, V. (1978). Influence of temperature on the reproductive potential of Oncholaimus oxyuris (Nematoda: Oncholaimidae) Mar. Biol. (Berl.) 45: 255-260 |
| In: Marine Biology. Springer: Berlin. ISSN 0025-3162, meer |
| Ook gepubliceerd als |
- Heip, C.H.R.; Smol, N.; Absillis, V. (1978). Influence of temperature on the reproductive potential of Oncholaimus oxyuris (Nematoda: Oncholaimidae), in: (1978). IZWO Coll. Rep. 8(1978). IZWO Collected Reprints, 8: pp. chapter 13 [Subsequent publication], meer
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| Abstract |
The large nematode Oncholaimus oxyuris Ditlevsen, 1911 is a dominant predator in a shallow polyhaline brackish-water pond in Belgium. The reproductive potential of this species was calculated as the intrinsic rate of natural increase r = 1/G ln pNe, in which D is the generation time, p is the percentage of females, and Ne is the number of eggs per female. The generation time varies between 570 days at 5°C and 101 days at 25°C and is the main factor in the determination of r.
The relationship between r and temperature is nearly linear and is given by r = 0.0013 T - 0.0042. The reproductive potential of O. oxyuris is much lower than would be predicted from body size; this, and the dominance of males in the population, is discussed in the light of the evolution of stable predator-prey systems. |
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