Temporal variation in responses to intraspecific brood parasitism in the moorhen

Article Abstract:

The population of moorhens, Gallinula chloropus, shows variation in responses to intraspecific brood parasitism. The brood parasitism depends on the timing of parasitism and the number of parasitic eggs laid. The parasitic eggs laid outside the host's laying period do not hatch. Moorhens desert their nest when a foreign egg appears early in the laying period. Early desertion depends on the number of eggs the host deserts and the number of parasitic eggs received.

Behavior, Eggs, Parasitic birds, Eggs (Biology), Incubation, Blue tit

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Factors affecting the rates of intraspecific nest parasitism among Anseriformes and Galliformes

Article Abstract:

Galliformes and Anseriformes are studied for intraspecific nest parasitism (INP) in relation to nesting habits, including body and egg size, incubation period, and clutch size. Cavity nesters, those with large clutch size, eggs, and bodies, are found have higher rates of INP. INP occurrence in Anseriformes and Gelliformes species is graphed (with taxa relationships) and the other factors are shown in a series of tables.

Israel, Statistical Data Included, Parasites, Tel Aviv, Israel, Geese, Galliformes, Tel Aviv University

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Intraspecific brood parasitism: a strategy for floating females in the European starling

Article Abstract:

A study was conducted to identify strategies to increase the reproductive success of female floaters in the population of European starlings. Results suggest that female floaters which cannot successfully compete for nest sites nor mate in the breeding season should engage in intraspecific brood parasitism to increase the probability of reproducing in a time when they are restrained from breeding.

Sexual behavior, Sexual behavior in animals, Animal sexual behavior, Starlings, Animal reproduction, Parasitological research

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