Browsing Research Articles (University of Pretoria) by UP Author "Yetman, Caroline Angela"

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Conservation implications of the age/size distribution of giant bullfrogs (Pyxicephalus adspersus) at three pen-urban breeding sites

Yetman, Caroline Angela; Mokonoto, Peter; Ferguson, Jan Willem Helenus (British Herpetological Society, 2012)

Nothing is known about the age of wild Giant Bullfrogs (Pyxicephalus adspersus); yet this information has important conservation implications for this regionally threatened species. We quantified and compared the age, ...
Revalidation of Pyxicephalus angusticeps Parry, 1982 (Anura : Natatanura : Pyxicephalidae), a bullfrog endemic to the lowlands of eastern Africa

Scott, Elizabeth; Visser, John D.; Yetman, Caroline Angela; Olivier, Lauren; Broadley, Donald G. (Magnolia Press (open access), 2013)

Pyxicephalus currently contains three recognized species, viz. P. adspersus, P. edulis and P. obbianus, the former two of which have a long history of confusion. Parry (1982) described P. adspersus angusticeps from Beira, ...
Spawning and non-breeding activity of adult giant bullfrogs (Pyxicephalus adspersus)

Yetman, Caroline Angela; Ferguson, Jan Willem Helenus (Taylor & Francis, 2011-04)

Populations of the giant bullfrog (Pyxicephalus adspersus) have been poorly monitored due to the unpredictable appearance of this species aboveground. To better understand the activity of P. adspersus we quantified spawning ...

Now showing items 1-3 of 3

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