Cooperative Breeding in the Lake Tanganyika Cichlid Julidochromis ornatus
نویسندگان
چکیده
منابع مشابه
Cooperative Breeding and Group Structure in the Lake Tanganyika Cichlid Neolamprologus savoryi
As yet, cooperative breeding has been described only for some fish species. However, evidence is accumulating that it is widespread among Lake Tanganyika cichlids. We studied the cooperative breeding system of the substrate breeding cichlid Neolamprologus savoryi. Breeding groups typically consisted of a large breeding male with one to four breeding females and three to 33 helpers (mean group s...
متن کاملTestis size depends on social status and the presence of male helpers in the cooperatively breeding cichlid Julidochromis ornatus
Satoshi Awata, Dik Heg, Hiroyuki Munehara, and Masanori Kohda Laboratory of Animal Sociology, Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan, Department of Behavioural Ecology, Zoological Institute, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland, and Usujiri Fisheries Statio...
متن کاملGroup Structure, Nest Size and Reproductive Success in the Cooperatively Breeding Cichlid Julidochromis ornatus: A Correlation Study
* Freshwater Fisheries Research Division, National Research Institute of Fisheries Science, Fisheries Research Agency, Ueda, Japan Laboratory of Animal Sociology, Department of Biology and Geosciences, Graduate School of Science, Osaka City University, Osaka, Japan Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan § Laboratory of Animal Ecology, Graduate School of Scie...
متن کاملTempo and Mode of Diversification of Lake Tanganyika Cichlid Fishes
BACKGROUND Understanding the causes of disparities in species diversity across taxonomic groups and regions is a fundamental aim in evolutionary biology. Addressing these questions is difficult because of the need for densely sampled phylogenies and suitable empirical systems. METHODOLOGY/PRINCIPAL FINDINGS Here we investigate the cichlid fish radiation of Lake Tanganyika and show that per li...
متن کاملTesting the stages model in the adaptive radiation of cichlid fishes in East African Lake Tanganyika.
Adaptive radiation (AR) is a key process in the origin of organismal diversity. However, the evolution of trait disparity in connection with ecological specialization is still poorly understood. Available models for vertebrate ARs predict that diversification occurs in the form of temporal stages driven by different selective forces. Here, we investigate the AR of cichlid fishes in East African...
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ژورنال
عنوان ژورنال: Environmental Biology of Fishes
سال: 2006
ISSN: 0378-1909,1573-5133
DOI: 10.1007/s10641-006-9032-5