EVOLUTIONARY TRENDS IN XENOPUS (ANURA PIPIDAE)
نویسندگان
چکیده
منابع مشابه
Skeletal development in Xenopus laevis (Anura: Pipidae).
Postembryonic skeletal development of the pipid frog Xenopus laevis is described from cleared-and-stained whole-mount specimens and sectioned material representing Nieuwkoop and Faber developmental Stages 46-65, plus postmetamorphic individuals up to 6 months old. An assessment of variation of skeletogenesis within a single population of larvae and comparison with earlier studies revealed that ...
متن کاملCompetition and feeding ecology in two sympatric Xenopus species (Anura: Pipidae)
The widespread African clawed frog (Xenopus laevis) occurs in sympatry with the IUCN Endangered Cape platanna (Xenopus gilli) throughout its entire range in the south-western Cape, South Africa. In order to investigate aspects of the interspecific competition between populations of X. laevis and X. gilli, an assessment of their niche differentiation was conducted through a comprehensive study o...
متن کاملThe tadpole of the Lake Oku clawed frog Xenopus longipes (Anura; Pipidae).
Xenopus longipes Loumont and Kobel, 1991 is an aquatic polyploid frog endemic to the high altitude crater lake, Lake Oku in North West region, Cameroon (Loumont & Kobel 1991). The tadpole of X. longipes is currently undescribed. So far, only dead tadpoles have been found at Lake Oku during regular monitoring since 2008 (Doherty-Bone et al. 2013), with specimens too decomposed to make adequate d...
متن کاملMind the gaps: investigating the cause of the current range disjunction in the Cape Platanna, Xenopus gilli (Anura: Pipidae)
Low-lying areas of the Cape at Africa's south-westernmost tip have undergone dramatic marine-remodelling, with regular changes in sea-level following glacial cycles. Species for which marine barriers are impenetrable underwent concomitant radical distribution changes which may account for current range disjunctions. The Cape platanna, Xenopus gilli, is a frog distributed in only three disjunt a...
متن کاملTrends in Evolutionary Robotics
A review is given on the use of evolutionary techniques for the automatic design of adaptive robots. The focus is on methods which use neural networks and have been tested on actual physical robots. The chapter also examines the role of simulation and the use of domain knowledge in the evolutionary process. It concludes with some predictions about future directions in robotics.
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ژورنال
عنوان ژورنال: Monitore Zoologico Italiano. Supplemento
سال: 1981
ISSN: 0374-9444
DOI: 10.1080/03749444.1981.10736632