Results 91 to 100 of about 24,176 (305)

Geographic body size variation in ectotherms: effects of seasonality on an anuran from the southern temperate forest [PDF]

, 2015
Indexación: Web of Science; Scopus.Background: Body size variation has played a central role in biogeographical research, however, most studies have aimed to describe trends rather than search for underlying mechanisms.
Cunningham, AA, Soto-Azat, C, Valenzuela-Sánchez, A   +2 more
core   +2 more sources

Popliteal sinus venipuncture in anurans

Journal of the American Veterinary Medical Association
Abstract OBJECTIVE To demonstrate an underutilized, reliable, and technically simple anuran venipuncture technique by use of the popliteal sinus. ANIMALS Medium to large (> 30 g) anuran species. METHODS The animal is manually restrained using an encircling grip around the pelvic girdle. With the ventrum facing the phlebotomist, the phlebotomist
Ashlyn C. Heniff, Larry J. Minter, Julie A. Balko, Ryan S. DeVoe   +3 more
openaire   +2 more sources

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

Like a Fish out of Water: Temporary Habitat Switching Detected in Aquatic Tadpoles Resting Above the Water's Surface

Ecology and Evolution
Amphibian tadpoles are typically aquatic and constrained to freshwater throughout development. These circumstances change at metamorphosis, whereupon individuals may complete a partial or full habitat shift towards terrestriality and gain the capacity to
John Gould, Claire Larkin, Colin McHenry
doaj   +1 more source

REPRODUCTION AND HABITAT OF TEN BRAZILIAN FROGS (ANURA) [PDF]

, 2008
Basic data on habitat, behavior, and reproduction arelacking for most Neotropical frog species and even highertaxonomic groups (Crump 1974; Haddad and Prado2005), particularly for those restricted to the AtlanticForest.
Facure, Katia G., Giaretta, Ariovaldo A.
core   +2 more sources

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Fauna de anuros en la ciudad de Salta, Argentina

Revista de Biología Tropical, 2005
La pérdida y transformación del hábitat generado por actividades humanas es una de las principales causas de disminución de biodiversidad. Los anfibios constituyen un grupo en franca declinación a nivel global debido a múltiples motivos, entre ellos la ...
Rebeca Acosta, Rosa Vera Mesones, Alejandro Núñez   +2 more
doaj  

Comparison of the responses of male Japanese treefrog (Dryophytes japonicus) to the rain and advertisement calls

Journal of Ecology and Environment
Anurans communicate with others using several types of calls such as advertisement, encounter, release, and rain calls. Some treefrog species produce rain calls from their daytime shelters, such as trees and bushes, during both the breeding and non ...
Hahyun Nam, Jin-Kyoung Kim, Jiho Park, Jongsun Kim, Min-Woo Park, Jiyeon Cheon, Daesik Park   +6 more
doaj   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

The Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox, Kenneth D. Rose, Rachel H. Dunn, Kishor Kumar, Rajendra S. Rana, Ashok Sahni, Lachham Singh, Thierry Smith, Jordan W. Crowell   +8 more
wiley   +1 more source

Clinical Physical Exam Shows High Sensitivity for Detecting Labral Tears in Individuals With Femoroacetabular Impingement Syndrome

Arthroscopy, EarlyView.
Purpose To determine the diagnostic performance of the combined use of radiographs and physical exam findings, compared with magnetic resonance arthrography (MRA) alone, for the primary diagnosis of labral tears in individuals with femoroacetabular impingement syndrome.
Carson Halliwell, Rebecca Moyer, George Konstantinidis, Eyal Amar, Ivan Wong   +4 more
wiley   +1 more source