Results 21 to 30 of about 412 (134)

Ptychadena ansorgii

open access: yes, 2021
<i>Ptychadena ansorgii</i> (Boulenger, 1905) <p> <b>Material (one specimen):</b> One adult specimen (MHNCUP/ ANF 332, formerly UP-MHNFCP-052191; Fig.
Santos, Bruna S.   +3 more
core   +1 more source

Decadienal afforestation and risks to montane grassland amphibians in the Udzungwa Plateau, Tanzania

open access: yesBiotropica, Volume 55, Issue 5, Page 978-990, September 2023., 2023
Pine plantations are rising in previously tree‐free landscapes to relieve pressures on native forests for timber. In tropical montane grasslands, the introduction of new pine plantations appears to disrupt native amphibian communities and may cause local extinctions.
Lucinda P. Lawson   +4 more
wiley   +1 more source

Amphibian diversity, distribution and conservation in the Ethiopian highlands : morphological, molecular and biogeographic investigation on Leptopelis and Ptychadena (Anura) [PDF]

open access: yes, 2012
Little is known about the diversity, distribution and population status of Ethiopian amphibians in general, and most of the existing knowledge is based on field data recorded about three decades ago or earlier.
Mengistu, Abebe Ameha
core   +1 more source

Ecology, sexual dimorphism, and jumping evolution in anurans

open access: yesJournal of Evolutionary Biology, Volume 36, Issue 5, Page 829-841, May 2023., 2023
Sexual dimorphism (SD) of jumping is common in frogs and toads. Males did not differ in jumping velocity and energy among microhabitats, but females did and these differences are linked to sex‐specific reproductive roles. Abstract Sexual dimorphism (SD) is a common feature of animals, and selection for sexually dimorphic traits may affect both ...
Bryan H. Juarez   +2 more
wiley   +1 more source

Savanna vegetation increase triggers freshwater community shifts

open access: yesGlobal Change Biology, Volume 28, Issue 23, Page 7023-7037, December 2022., 2022
Large mammalian herbivores inhabiting savanna landscapes are known to shape adjacent freshwater bodies, which are used by a wide variety of species during reproduction. Following a period of intensified poaching in Comoé National Park, Ivory Coast, we quantified major vegetation increase in small temporary ponds, which resulted in significant ...
Guillaume Demare   +3 more
wiley   +1 more source

Diversity of Ptychadena in Rwanda and taxonomic status of P. chrysogaster Laurent, 1954 (Amphibia, Anura, Ptychadenidae)

open access: yesZooKeys, 2013
We assess the diversity of Ptychadena species in Rwanda based on re-examination of voucher specimens in museum collections and our own data from recent assessment of the species composition of amphibian communities in Rwanda.
J Dehling, Ulrich Sinsch
doaj   +1 more source

Ecological Scenarios and Parasite Diversity in Anurans of West Africa: A Review

open access: yesDiversity, 2021
This paper is a survey of the parasite diversity, prevalence and infection intensity in anurans in diverse ecological settings in West Africa. The settings included natural habitats (rainforests, freshwater creeks, Guinea and Sudan savannas), monoculture
Martins S. O. Aisien   +2 more
doaj   +1 more source

Systematics of the genus Ptychadena Boulenger, 1917 (Anura: Ptychadenidae) from Democratic Republic of the Congo [PDF]

open access: yes, 2010
This thesis increases the scope of previous phylogenetic analyses that revealed high levels of genetic differentiation within the anuran genus Ptychadena.
Weber, Katrina Marie
core   +2 more sources

Ptychadena mascareniensis ZMH A00521, unstained CT volume

open access: yes, 2020
Species: Ptychadena mascareniensis Collection number: ZMH A00521 Institution of origin: Zoologisches Museum Hamburg Data: CT volume of unstained specimen Coverage: full specimen Scanner: Skyscan1172 Scanning paramters: 100 kV; 100 µA; filter: Al 0 ...
Haas, Alexander, Engelkes, Karolin
core   +1 more source

Implications of summer breeding frogs from Langebaanweg, South Africa: Regional climate evolution at 5.1 mya

open access: yesSouth African Journal of Science, 2016
No direct palaeoclimatic proxies have been available to indicate the seasonality or amount of rainfall on the west coast of southern Africa during the Early Pliocene.
Thalassa Matthews   +2 more
doaj   +1 more source

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