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Daytime spatial relationships in a family group of black rhinoceros Diceros bicornis at the Hiroshima City Asa Zoological Park, Japan.
Nakamichi, Masayuki; Saito, Miho; Kaigaishi, Yu; Onishi, Kenji.
Afiliación
  • Nakamichi M; Graduate School of Human Sciences, Osaka University, Suita, Osaka, Japan.
  • Saito M; Graduate School of Asian and African Area Studies, Kyoto University, Sakyo-ku, Kyoto, Japan.
  • Kaigaishi Y; Kyoto University Institute for Advanced Study, Yoshida, Ushinomiya-cho, Sakyo-ku, Kyoto, Japan.
  • Onishi K; Department of Early Childhood Education, Nara University of Education, Nara City, Japan.
Zoo Biol ; 43(4): 364-370, 2024.
Article en En | MEDLINE | ID: mdl-38549509
ABSTRACT
Although black rhinoceros Diceros bicornis are mostly solitary in the wild, the Hiroshima City Asa Zoological Park (Asa Zoo) has kept a family group together during the daytime, with good reproductive performance over five decades. Management procedures at the zoo include temporary single housing of the mother before and after giving birth, which facilitates maintenance of a compatible family group. We recorded intra-group spatial relationships for 4 years and 4 months, during which time an adult female reared two consecutive calves. During daytime she remained in an enclosure with her new calf, one or two older offspring, and an adult male, the sire of all her offspring. Proximity (within two adult body-lengths) scores between the mother and her two calves were especially high during the first year after birth, and only slightly lower for her older offspring. The adult male had the lowest proximity scores. The spatial relationships were visualized by applying multidimensional scaling (MDS) to the proximity scores. Mother and calves were plotted close to each other, with older offspring slightly farther apart on the two-dimensional MDS representation; the adult male was more distant from the other group members. These findings indicate clear follower-type characteristics in the mother-calf pair and also older immature offspring, albeit to a lesser degree. Although black rhinoceros are generally solitary in the wild, our results duplicate observations of some wild black rhinoceros groups containing an adult female, her calf, and an older immature, with adult males being largely solitary.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Perisodáctilos / Animales de Zoológico Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Zoo Biol Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Perisodáctilos / Animales de Zoológico Límite: Animals País/Región como asunto: Asia Idioma: En Revista: Zoo Biol Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos