Results 81 to 90 of about 6,369,664 (287)

Prevalence of Endo-Parasites of Common Tree Frog Rana Saharica from Misurata, Libya

Sudan Journal of Medical Sciences, 2018
The current study was conducted to detect the prevalence of parasitic infection among (62) common tree frogs (Rana Saharica), of different ages, with weights ranged between 1 and 25g.
Elmajdoub O. Layla, Shabash H. Elhamali, Omar A. Mosaab, Aborawis M. Afaf   +3 more
doaj   +1 more source

Eastern cricket frog Acris crepitans distribution and reintroduction efforts informed by wetland habitat and overwintering temperatures

Endangered Species Research
Reintroduction as a wildlife management strategy is becoming increasingly common and has had varied levels of success. To ensure a successful reintroduction, it is important to consider historical survey data, habitat preferences, and species ...
EM Edwards, BA Mosher, P Sullivan, RO Mummah   +3 more
doaj   +1 more source

Investigation of Hexagonal Honeycomb Topology for Impact Optimization in Energetic Material

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The regulation of the mechanical properties of energetic materials manufactured by traditional processes is constrained. However, the introduction of lattice structures can facilitate the regulation of mechanical properties without necessitating alterations to the materials themselves. Using finite element analysis and experimental validation,
Xueye Chen, Bin Yang, Linna Zhang, Zhihao Ding, Weitao Yang   +4 more
wiley   +1 more source

Volunteer Conservation Action Data Reveals Large-Scale and Long-Term Negative Population Trends of a Widespread Amphibian, the Common Toad (Bufo bufo).

PLoS ONE, 2016
Rare and threatened species are the most frequent focus of conservation science and action. With the ongoing shift from single-species conservation towards the preservation of ecosystem services, there is a greater need to understand abundance trends of ...
Silviu O Petrovan, Benedikt R Schmidt
doaj   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, EarlyView.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

Composition and Functional Specialists of the Gut Microbiota of Frogs Reflect Habitat Differences and Agricultural Activity

Frontiers in Microbiology, 2018
The physiological impact of agricultural pollution, habitat disturbance, and food source variability on amphibian remains poorly understood. By comparing the composition and predicted functions of gut microbiota of two frog species from forest and ...
Bing-Hong Huang, Chun-Wen Chang, Chun-Wen Chang, Chih-Wei Huang, Jian Gao, Jian Gao, Pei-Chun Liao   +6 more
doaj   +1 more source

Abnormalities in the Common Frog (Rana temporaria)

Proceedings of the Zoological Society of London, 1921
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

The tiger salamander as a promising alternative model organism to the axolotl for fracture healing and regenerative biology research

The Anatomical Record, EarlyView.
Abstract Scientists have been captivated by the ability to regenerate, focusing on uncovering the mechanisms of epimorphic regeneration and applying them to human medicine. The axolotl (Ambystoma mexicanum) has become the most intensively studied model in tetrapod regeneration research, particularly concerning limb regeneration.
Vivien Bothe, Nadia Fröbisch
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

The Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source