Obligate monogamy without paternal care in Kirk's dikdik
Article Abstract:
A herd of dikdik were observed in the Tsavo East National Park, Kenya, for over two breeding seasons. Dikdik males were observed to maintain existing monogamous pair bonds despite the availability of additional females. Paired males did not attempt to expand their territories to include that of a neighboring widow. Unpaired males invaded territories of widows. Results suggest that dikdik are obligate and uniparental monogamists. It is proposed that the terms facultative and obligate monogamy be used to exclusively describe the flexibility of the mating system and not the absence-presence of paternal care.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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No relationship between territory size and the risk of cuckoldry in birds
Article Abstract:
The relationship between territory size and breeding cycle of the chiffchaff, Phylloscopus collybita, was investigated. Results showed that chiffchaff territories were bigger before the fertile period of the females and were smallest during the fertile period of the females for most species investigated. This indicates that territoriality requires an operational definition without which test predictions regarding the adaptive basis of variation in territory size will be difficult.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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