Results 21 to 30 of about 414 (167)

Pinopsin Regulates Melatonin Production and Daily Locomotor Activity: Functional Insights From Gene-Edited Xenopus Tadpoles. [PDF]

open access: yesJ Pineal Res
ABSTRACT Circadian rhythm alignment depends on environmental light detection via opsins. Pinopsin, originally identified in the pineal organ of birds and later in amphibian pineal complex and eyes, may play a role in this process, though its function has not been genetically tested.
Heshami N   +4 more
europepmc   +2 more sources

Ptychadena bibroni

open access: yes
Published as part of Segniagbeto, Gabriel Hoinsoudé, Ohler, Annemarie, Rödel, Mark-Oliver, Luiselli, Luca & Dubois, Alain, 2024, Amphibians of Togo: taxonomy, distribution and conservation status, pp. 631-670 in Zoosystema 46 (25) on pages 656-657, DOI: 10.5252/zoosystema2024v46a25, http://zenodo.org/record ...
Segniagbeto, Gabriel Hoinsoudé   +4 more
  +14 more sources

Locomotor, ecological and phylogenetic drivers of skeletal proportions in frogs. [PDF]

open access: yesJ Anat, 2023
This study investigates the link between skeletal anatomy and locomotor mode, habitat type and evolution in frogs, shedding new light on how functional demands impact morphology. Sacral expansion is the strongest driver of morphological variation. Locomotor mode has a more significant impact on morphology than habitat type and phylogenetic history ...
Leavey A, Ruta M, Richards CT, Porro LB.
europepmc   +2 more sources

Species composition and distribution of endemic frog species of Keffa, southwest Ethiopia

open access: yesGlobal Ecology and Conservation, 2022
The present study was carried out to describe the species composition, diversity, distribution, and species richness of endemic frog species in the Keffa area, southwest Ethiopia. Data were collected during the wet and dry seasons from 2018 to 2021.
Abeje Kassie Teme   +2 more
doaj   +1 more source

Pleistocene Forest Stability Predicts Patterns of Frog Diversity in Central Africa [PDF]

open access: yesEcol Evol
Using high‐resolution paleoclimate reconstructions, we quantified habitat stability for Central African rainforests across 257 time slices since the early Pleistocene. Stacked projections of forest‐dependent frog niches identify both a large, continuous refugium and smaller, highly stable forest blocks embedded within today's forest cover.
Jongsma G   +4 more
europepmc   +2 more sources

Ptychadena longirostris

open access: yes, 2021
Published as part of Kanga, Kouassi Philippe, Kouamé, N'Goran Germain, Zogbassé, Parfait, Gongomin, Basseu Aude-Inès, Agoh, Konan Laurent, Kouamé, Akoua Michèle, Konan, Jean Christophe B. Y. N., Adepo-Gourène, Abouo Béatrice, Gourène, Germain & Rödel, Mark-Oliver, 2021, Amphibian diversity of a West African biodiversity hotspot: an assessment and ...
Kanga, Kouassi Philippe   +9 more
openaire   +2 more sources

Ptychadena nilotica

open access: yes, 2023
Published as part of Kirchhof, Sebastian, Wasonga, Victor, Mazuch, Tomáš, Spawls, Stephen & Malonza, Patrick Kinyatta, 2023, An annotated checklist of the herpetofauna of the Sibiloi National Park in northern Kenya based on field surveys, pp.
Kirchhof, Sebastian   +4 more
openaire   +1 more source

Ptychadena oxyrhynchus

open access: yes, 2023
Ptychadena oxyrhynchus (Smith, 1849) Sharp-nosed Ridged Frog (Fig. 32; Map 30) Material (6 specimens): PEM A12628, roadside ditch 10 km SW of Cuito town, -12.44815° 16.88118°, 1,742 m asl; PEM A12667, Campsite 1 below Cubango River rapids, west of Fundo village, -13.04483° 16.37520°, 1,585 m asl; PEM A12835–6, 31 km W of Menongue, Cueli River, -14 ...
Conradie, Werner   +4 more
openaire   +2 more sources

Ptychadena oxyrhynchus

open access: yes, 2021
Ptychadena oxyrhynchus (Smith, 1849) Sharp-nosed Grass Frog Material: Two females, NGK-Nimba 0040, NGK-Nimba 0041, and one male, NGK-Nimba 0042 (Fig. 13 F). Comments: Ptychadena oxyrhynchus is a large frog with extremely robust and long hind legs. It occurs in savannahs and edges of the forest zone across sub-Saharan Africa (Rödel 2000; Channing and ...
Kanga, Kouassi Philippe   +9 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy