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2,581 results for “amphibians”
Figure 19 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 19 Pristimantis tungurahua, Females A lateral view (DHMECN 14428) B lateral view C frontal view (DHMECN 14427) D dorsal view (DHMECN 14428). Photographs by Mario H. Yánez-Muñoz.
Figure 7 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 7 Anuran reproductive strategies within Naturetrek-Vizcaya Reserve and Machay Reserve. Types of reproductive strategies I.-A Eggs hatch in exotropic tadpoles that are carried to lentic water. Eggs and feeding tadpoles in lentic water I.-B Eggs hatch in exotropic tadpoles that are taken to lotic waters. Eggs and feeding tadpoles in lotic water II.-A Eggs with direct development, completely formed hatched frogs II.-B Eggs imbedded in dorsum of aquatic female; eggs hatch into froglets III.-A Ovoviviparous; nutrition is provided by the yolk.
Figure 29 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 29 Pristimantis sp. D. Female (DHMECN 14466). A lateral view B frontal view C dorsal view D ventral view. Photographs by Mario H. Yánez-Muñoz.
Figure 9 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 9 Beta diversity of the anuran communities in the Upper Rio Pastaza watershed. Above: Similarity diagram. Below: Cluster analysis based on the Jaccard analysis for the six studied localities in the Upper Rio Pastaza watershed.
Figure 34 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 34 Pristimantis maryanneae, live photographs of Paratypes A lateral view and B dorsal view (DHMECN 14452) C lateral view and D dorsal view (DHMECN 14451). Photographs by Mario H. Yánez-Muñoz.
Figure 23 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 23 Prisitmantis sp. aff. eriphus. Lateral view of male (DHMECN 14443) Photograph by Mario H. Yánez-Muñoz.
Figure 24 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 24 Prisitmantis sp. aff. bicantus. Lateral view (DHMECN 14444). Photograph by Mario H. Yánez-Muñoz.
Figure 33 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 33 Live photograps of new species and comparison with similar Pristimantis frogs in the region APristimantis burtoniorum sp. nov. (DHMECN 16220 from Machay Reserve Cerro Mayordomo.) BP. maryanneae sp. nov. (DHMECN 14454 from Naturetrek Vizcaya Reserve) CP. prolatus (DHMECN 16244 from El Encanto) DP. albujai (DHMECN 12245 from Sardinayacu river) EP. tungurahua (DHMECN 15224 from Naturetrek Vizcaya Reserve) FP. puruscafeum (not collected from Cerro Candelaria Reserve) GP. sacharuna (DHMECN 16723 from Rio Zuñag Reserve) HP. ventrimarmoratus not collected from Río Zuñag Reserve IPristimantis sp (DHMECN 16250 from El Encanto) . Photographs Juan Pablo Reyes Puig, Mario Yánez Muñoz, Jorge Brito and Lou Jost.
Figure 6 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 6 Trend between the snout-vent length (SVL) and elevation in collected adult amphibian females from the Machay Reserve and Naturetrek-Vizcaya Reserve.
Figure 27 from: Reyes-Puig JP, Reyes-Puig C, Franco-Mena D, Jost L, Yánez-Muñoz MH (2022) Strong differentiation between amphibian communities on two adjacent mountains in the Upper Rio Pastaza watershed of Ecuador, with descriptions of two new species of terrestrial frogs. ZooKeys 1081: 35-87. https://doi.org/10.3897/zookeys.1081.71488
Figure 27 Pristimantis sp. B. A frontal view B dorsal view C lateral view (DHMECN 14457) D ventral view (DHMECN 14458). Photographs by Lou Jost.
Amphibian fauna of Pakistan with notes on future prospects of research and conservation
<p>The research on amphibians and their conservation efforts have gained worldwide attention, since the group includes the highest number of threatened and data deficient species when compared with other vertebrates. However, amphibians have long been neglected in <span>wildlife conservation, management decisions, policy making and research agendas in Pakistan</span>. In this paper, the annotated checklist of the 21 amphibian species of Pakistan, the key to their identification, and detailed discussions on the occurrence of variation in species including the genera <i>Minervarya, </i>and <i>Sphaerotheca</i> are provided. We found statistically significant difference in the morphometric measurements of males but non-significant difference in the females of the two forms (rusty dorsum and dotted dorsum) of <i>S. maskeyi</i>. Some genera, such as <i>Microhyla, Uperodon,</i> <i>Minervarya, Allopaa, Chrysopaa, </i><i>Euphlyctis, Nanorana </i>and <i>Sphaerotheca</i> that are found in Pakistan need additional data to compare molecular taxonomy and detailed comparisons with those found in other South Asian countries. Predicaments in amphibian research in Pakistan are discussed, gaps identified, and suggestions have been made. Although <span>the likelihood of occurrence of chytrid fungus in Pakistan is predicted to be low, the data deficiency merits studying the prevalence of the fungus, particularly in the northern regions of the country which exhibit complex and dynamic ecosystems.</span> It is recommended to conduct systematic and coordinated surveys throughout the country to build a data base on species occurrence and distribution. Additionally, monitoring of wild populations, threat mitigation, and appropriate legislation are suggested as long term measures. By adopting an inclusive wildlife conservation approach in Pakistan, amphibians could be integrated into wildlife conservation and management efforts.</p>
Supplementary material 1 from: Conan A, Fleitz J, Garnier L, Le Brishoual M, Handrich Y, Jumeau J (2022) Effectiveness of wire netting fences to prevent animal access to road infrastructures: an experimental study on small mammals and amphibians. In: Santos S, Grilo C, Shilling F, Bhardwaj M, Papp CR (Eds) Linear Infrastructure Networks with Ecological Solutions. Nature Conservation 47: 271-281. https://doi.org/10.3897/natureconservation.47.71472
Supplementary materials and methods
Fig. 7 in Eight Species Of Anuran Amphibians (Amphibia, Anura) Found In Ukraine: Comparative Morphology And Classification Of Larval Development Stages
Fig. 7. Stages characterizing the formation of a grown animals mouth and the end of metamorphosis: 25 — the angle of the mouth matches the nostril's vertical line (the stage of front limbs emergence); 26 — the angle of the mouth is located between the vertical lines of the nostril and the middle of the eye; 27 — the angle of the mouth matches the vertical line
Fig. 2 in Eight Species Of Anuran Amphibians (Amphibia, Anura) Found In Ukraine: Comparative Morphology And Classification Of Larval Development Stages
Fig. 2. Stages of fin development: 4 — the tail fin is developed but not yet transparent; 5 — the body of tail fin is transparent (at this stage operculum may cover the base of gills filaments).
Data from: Thriving in a hostile world: insights from the dietary strategy of two allopatric, closely-related tepui summit endemic amphibians
<p>To date, there has been no published investigation on the trophic diversity in any tepui summit vertebrate. In this paper we analysed the dietary composition of a tepui summit endemic toad, <i>Oreophrynella quelchii</i> from Roraima-tepui, and compared it with that of <i>O. nigra</i>, to examine to what extent diet differs between these two sister species across isolated, although neighbouring, tepui tops. The digestive tracts of a total of 197 toads were dissected: 111 from <i>O. quelchii</i> and 86 from <i>O. nigra</i>. The diet composition of <i>O. quelchii</i> was relatively diverse, with 13 major prey categories; mites (Acari, 36.5%) and beetles (Coleoptera, 21.0%) numerically dominated its diet. Despite occurring on two different tepui summits, <i>O. quelchii </i>and <i>O. nigra</i> exhibited a similar diet composition, although in <i>O. nigra</i> mites (Acari, 42.4%) and hymenopterans (especially ants, 16.9%) numerically dominated the diet. The present data suggest that tepui summit <i>Oreophrynella</i> species are flexible in their diet and are active foragers that also feed on aquatic arthropods, successful strategies in tepui competitive environments.</p>
Data from: Empirical estimation of skin resistance to water loss in amphibians: agar evaluation as a non-resistance model to evaporation
<p>Total resistance (R<sub>T</sub>) to evaporative water loss (EWL) in amphibians is given by the sum of the boundary layer (<em>r</em><sub>b</sub>) and the skin resistance (<em>r</em><sub>s</sub>). Thus, <em>r</em><sub>s</sub> can be determined if the <em>r</em><sub>b</sub> component is defined (<em>r</em><sub>s</sub> = R<sub>T</sub> - <em>r</em><sub>b</sub>). The use of agar models has become the standard technique to estimate <em>r</em><sub>b</sub> under the assumption that agar surface imposes no barrier to evaporation (<em>r<sub>s</sub></em> = 0). We evaluated this assumption by determining EWL rates and <em>r</em><sub>b</sub> values from exposed surfaces of free water, a physiological solution mimicking the osmotic properties of a generalized amphibian, and agar gels prepared at various concentrations either using water or physiological solution as diluent. Water evaporation was affected by both, the presence of solutes and agar concentration. Models prepared with agar at 5% concentration in water provided the most practical and appropriate proxy for the estimation of <em>r</em><sub>b</sub>.</p> <p> </p> <p> </p>
Supplementary material 3 from: Nania D, Lumbierres M, Ficetola GF, Falaschi M, Pacifici M, Rondinini C (2022) Maps of area of habitat for Italian amphibians and reptiles. Nature Conservation 49: 117-129. https://doi.org/10.3897/natureconservation.49.82931
Appendix 3
Supplementary material 4 from: Nania D, Lumbierres M, Ficetola GF, Falaschi M, Pacifici M, Rondinini C (2022) Maps of area of habitat for Italian amphibians and reptiles. Nature Conservation 49: 117-129. https://doi.org/10.3897/natureconservation.49.82931
Appendix 4
Supplementary material 2 from: Nania D, Lumbierres M, Ficetola GF, Falaschi M, Pacifici M, Rondinini C (2022) Maps of area of habitat for Italian amphibians and reptiles. Nature Conservation 49: 117-129. https://doi.org/10.3897/natureconservation.49.82931
Appendix 2
Supplementary material 1 from: Nania D, Lumbierres M, Ficetola GF, Falaschi M, Pacifici M, Rondinini C (2022) Maps of area of habitat for Italian amphibians and reptiles. Nature Conservation 49: 117-129. https://doi.org/10.3897/natureconservation.49.82931
Appendix 1
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.