The reproductive biology of the Ethiopian hedgehog, Paraechinus aethiopicus, from central Saudi Arabia : the role of rainfall and temperature

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dc.contributor.author Alagaili, A.N.
dc.contributor.author Bennett, Nigel C., 1961-
dc.contributor.author Mohammed, O.B.
dc.contributor.author Hart, D.W. (Daniel)
dc.date.accessioned 2017-09-12T07:15:34Z
dc.date.issued 2017-10
dc.description.abstract We set out to test whether the Ethiopian hedgehog, Paraechinus aethiopicus is a seasonal or aseasonal breeder and assess which environmental cues bring about both reproductive recrudescence and its subsequent regression. In this study, the body mass, morphometry of the reproductive tract the histology of the reproductive organs and the hormone concentrations of males and females were studied over 12 consecutive months in a wild population of the Ethiopian hedgehog from central Saudi Arabia. Using these data we investigated the potential proximate environmental cues that may trigger the onset of reproduction. Temperature is important for the initial activation of the males by bringing about an increase in testosterone concentration. In female hedgehogs the first rains trigger the onset of reproductive activation with ovulation. In turn increased temperature brings about the final activation of the males with increased testes size and seminiferous tubule diameter. Pregnancies were first recorded in early spring and summer coinciding with a rise in plasma progesterone concentration that peaked in spring. The Ethiopian hedgehog was found to exhibit marked seasonal reproduction. This study strengthens the findings that changes in rainfall and temperature in the Middle East are crucial cues for the onset of reproduction in small mammals. en_ZA
dc.description.department Zoology and Entomology en_ZA
dc.description.embargo 2018-10-30
dc.description.librarian hj2017 en_ZA
dc.description.sponsorship The Research Chairs Program, Deanship of Scientific Research at the King Saud University, the National Research Foundation (grant no. 64756) and the University of Pretoria. en_ZA
dc.description.uri http://www.elsevier.com/locate/jaridenv en_ZA
dc.identifier.citation Alagaili, A.N., Bennett, N.C., Mohammed, O.B. & Hart, D.W. 2017, 'The reproductive biology of the Ethiopian hedgehog, Paraechinus aethiopicus, from central Saudi Arabia : the role of rainfall and temperature', Journal of Arid Environments, vol. 145, pp. 1-9. en_ZA
dc.identifier.issn 0140-1963 (print)
dc.identifier.issn 1095-922X (online)
dc.identifier.other 10.1016/j.jaridenv.2017.03.010
dc.identifier.uri http://hdl.handle.net/2263/62234
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2017 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Journal of Arid Environments. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Journal of Arid Environments, vol. 145, pp. 1-9, 2017. doi : 10.1016/j.jaridenv.2017.03.010 . en_ZA
dc.subject Reproduction en_ZA
dc.subject Environmental cues en_ZA
dc.subject Seasonality en_ZA
dc.subject Hormones en_ZA
dc.subject Histology en_ZA
dc.subject Ethiopian hedgehog (Paraechinus aethiopicus) en_ZA
dc.subject Cycle en_ZA
dc.subject Patterns en_ZA
dc.subject Salinity en_ZA
dc.subject Acomys en_ZA
dc.subject Mammals en_ZA
dc.subject Gerbil en_ZA
dc.subject Seasonal reproduction en_ZA
dc.subject Spiny mouse (Acomys dimidiatus) en_ZA
dc.title The reproductive biology of the Ethiopian hedgehog, Paraechinus aethiopicus, from central Saudi Arabia : the role of rainfall and temperature en_ZA
dc.type Postprint Article en_ZA


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