Fecundity, adult

LC50 (48 h) for copepodites. No effect on mating behavior of adults but abnormal ovisac development and decreased fecundity in some females 25... 

Moth, Ectomyelois ceratoniae male pupae, age 3 or 5 days, acute single exposure of 50-500 Gy Younger pupae were more sensitive than older pupae. Only 3% of pupae developed into adults at 500 Gy. At >250 Gy, progeny development reduced 50%. Normal fecundity at 100-250 Gy when mated with control females 4... 

Gametes of adults, single acute exposure of 50% reduction in fecundity 3... 

Hagstrum, D.W. and Smittle, B.J. 1977. Host-finding ability of Bracon hebetor and its influence upon adult parasite survival and fecundity. Environ. Entomol. 6, 437 139. 

Lefkovitch, L.P. and Currie, J.E. 1967. Factors affecting adult survival and fecundity in Lasioderma serricorne (F.)(Coleoptera Anobiidae). J. Stored Prod. Res. 3, 199-212. 

Our focus was upon natural and experimental studies that were designed to Investigate various aspects of the current plant-herblvore theory using the Douglas-flr/western spruce budworm system. Specifically, we wished to test whether there are chemical characteristics In the young needle tissue of Douglas-flr that reduce the growth, survival, and adult fecundity of the western spruce budworm. Secondly, we were Interested In... 

Antibiotics Disrupt normal growth and development of larvae reduce longevity and fecundity of adults... 

While sugar solutions can be a significant item in the diet of ants, parasitoids are often entirely dependent on carbohydrates as an adult food source (Jervis et al., 1993). The parasitoids longevity and fecundity are usually subject to energetic constraints (Leatemia etal., 1995 Stapel etal., 1997 Wackers, 2001), whereas the parasitoids behavior can also be strongly affected by their nutritional state (Wackers, 1994 Takasu and Lewis, 1995). There is strong evidence that the availability of suitable sugar sources can play a key role in parasitoid host dynamics (Krivan and Sirot, 1997 Wackers, 2003). 

Leahy, T. C. and Andow, D. A. (1994). Egg weight, fecundity, and longevity are increased by adult feeding in Ostrinia nubilalis (Lepidoptera, Pyralidae). Annals of the Entomological Society of America 87 342-349. 

McEwen, P. K. and Liber, H. (1995). The effect of adult nutrition on the fecundity and longevity of the alive moth Prays oleae (Bern). Journal of Applied Entomology (Zeitschrift fur Angewandte Entomologie) 119 291-294. 

Finally, vaccination of cattle with S. bovis GST elicited an anti-fecundity effect, manifest as reduced faecal egg excretion and tissue egg but not adult worm burden (Bushara et al., 1993). Conversely, vaccination of goats (Boulanger et al., 1 994) and sheep (Boulanger et al., 1999a) resulted in reduced worm burdens but no anti-fecundity effect. 

Systemic, ingested insecticide active by root application. Interferes with moulting affecting larval stages of insects. Also reduces fecundity in treated adults and have some ovicidal properties... 

Exposure to 2,4,5-T reduces fecundity and impairs larval development in honeybees (100-1000 ppm). It has also been reported to reduce arthropod counts in sprayed forested areas by up to 50%. Gill Ca-ATPase activity was reduced by 2,4,5-T exposure in rainbow trout (Oncorhynchus mykiss) and juveniles were more susceptible than adults. Studies conducted in birds (Japanese quail and mallard ducks) report liver abnormalities, proliferation of bile canaliculi, anorexia, wasting, and decreased fecundity. Many of these effects are likely attributable to dioxins that may also be present in 2,4,5-T preparations. 

TABLE 3 Loadings of life-history traits on the first eigenvector in the data of Tatar et al (1996). mx is adult fecundity on day x, and lx is the probability of survival from day x-1 to x. 

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