Two new Poyntonophrynus species (Anura: Bufonidae) highlight the importance of Angolan centers of endemism
- Baptista, Ninda L, Pinto, Pedro V, Keates, Chad, Lobón-Rovira, Javier, Edwards, Shelley, Rödel, Mark-Oliver
- Authors: Baptista, Ninda L , Pinto, Pedro V , Keates, Chad , Lobón-Rovira, Javier , Edwards, Shelley , Rödel, Mark-Oliver
- Date: 2023
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461572 , vital:76214 , xlink:href="https://zoobank.org/7B5494CC-F8F2-46EA-BB73-D28B13D31CB6"
- Description: The pygmy toad genus Poyntonophrynus is endemic to southern Africa. The morphology of these small toads is conserved. They are usually dully colored, and are predominately adapted to arid conditions. During recent surveys in Angola we found Poyntonophrynus specimens that were not assignable to known species. Using an integrative approach, based on mitochondrial and nuclear DNA, morphology, osteology, biogeography and ecology, we identified three new lineages, and describe two of them as new species. All three lineages are closely related to P. pachnodes, an Angolan endemic species, but they are geographically isolated from it. The new species are morphologically distinguishable, and are associated with two of the most important Angolan centers of endemism: the western escarpment and the central highlands. In order to get a more comprehensive understanding of the osteology of the genus, we also provide an osteological characterization of P. dombensis, which was not available to date. Our findings i) increase the number of earless species in the genus Poyntonophrynus, ii) emphasize southwestern Africa as the cradle of diversification in this genus, iii) report the occurrence of Poyntonophrynus in humid environments, thus showing that these toads are ecologically more variable than previously thought, and iv) underline the importance of further biodiversity studies in Angolan centers of endemism.
- Full Text:
- Date Issued: 2023
- Authors: Baptista, Ninda L , Pinto, Pedro V , Keates, Chad , Lobón-Rovira, Javier , Edwards, Shelley , Rödel, Mark-Oliver
- Date: 2023
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/461572 , vital:76214 , xlink:href="https://zoobank.org/7B5494CC-F8F2-46EA-BB73-D28B13D31CB6"
- Description: The pygmy toad genus Poyntonophrynus is endemic to southern Africa. The morphology of these small toads is conserved. They are usually dully colored, and are predominately adapted to arid conditions. During recent surveys in Angola we found Poyntonophrynus specimens that were not assignable to known species. Using an integrative approach, based on mitochondrial and nuclear DNA, morphology, osteology, biogeography and ecology, we identified three new lineages, and describe two of them as new species. All three lineages are closely related to P. pachnodes, an Angolan endemic species, but they are geographically isolated from it. The new species are morphologically distinguishable, and are associated with two of the most important Angolan centers of endemism: the western escarpment and the central highlands. In order to get a more comprehensive understanding of the osteology of the genus, we also provide an osteological characterization of P. dombensis, which was not available to date. Our findings i) increase the number of earless species in the genus Poyntonophrynus, ii) emphasize southwestern Africa as the cradle of diversification in this genus, iii) report the occurrence of Poyntonophrynus in humid environments, thus showing that these toads are ecologically more variable than previously thought, and iv) underline the importance of further biodiversity studies in Angolan centers of endemism.
- Full Text:
- Date Issued: 2023
Retrospective
- Authors: Pillay, Previn
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , South African poetry (English) 21st century , Identity (Philosophical concept) in literature , Grandmothers in literature , Families in literature
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191636 , vital:45128
- Description: My thesis is a collection of poems, divided into 4 sections. The first section draws on my experiences and background as an Indian South African, presenting a portrait of a KwaZulu-Natal Indian community, infused with the lingo of the streets. It also delves into my background by sharing real stories from my childhood and youth. The second section is about my grandmother, who is an influential character on my writing and a source for many unique stories. The third section is a brief look at my recent past and the fourth section is a sharing of my life and what is most important to me. My collection is a timeline of my life and the events which have shaped me. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
- Authors: Pillay, Previn
- Date: 2021-10-29
- Subjects: Creative writing (Higher education) South Africa , South African poetry (English) 21st century , Identity (Philosophical concept) in literature , Grandmothers in literature , Families in literature
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/191636 , vital:45128
- Description: My thesis is a collection of poems, divided into 4 sections. The first section draws on my experiences and background as an Indian South African, presenting a portrait of a KwaZulu-Natal Indian community, infused with the lingo of the streets. It also delves into my background by sharing real stories from my childhood and youth. The second section is about my grandmother, who is an influential character on my writing and a source for many unique stories. The third section is a brief look at my recent past and the fourth section is a sharing of my life and what is most important to me. My collection is a timeline of my life and the events which have shaped me. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2021
- Full Text:
- Date Issued: 2021-10-29
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