Abstract:
:In the non-reproductive period, six species of brood parasites (4 cuckoos, 2 viduines) observed in Rhodesia and in the Kalahari were found to inhabit other areas than their hosts, being either nomadic or migratory in habit. They are hence exposed to different environmental conditions.Histological examination of the gonads revealed a distinctly earlier maturation in the parasites than in their hosts. The parasites have thus developed a "waiting period" with fully developed gonads in order to synchronise their egg-laying period with that of their hosts. Parasites and hosts probably react to different environmental stimuli for the development of gonads.Altogether, host synchronisation seems to be distinctly different in African and European brood parasites. The reasons for these differences are discussed.
journal_name
Oecologiajournal_title
Oecologiaauthors
Immelmann Kdoi
10.1007/BF00390385subject
Has Abstractpub_date
1969-09-01 00:00:00pages
401-408issue
3-4eissn
0029-8549issn
1432-1939pii
10.1007/BF00390385journal_volume
3pub_type
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