Results 71 to 80 of about 5,950 (217)

Seasonal and Sexual Variations in Corticosterone and Total Triiodothyronine: A Pilot Study in Mediterranean Tortoises (Testudo hermanni)

Animals
The Mediterranean tortoise Testudo hermanni inhabits different regions bordering the northwestern Mediterranean. This species is vulnerable, protected by legislation, and involved in various breeding and reintroduction programs.
Sergi Olvera-Maneu, Xavier Navarro, Paula Serres-Corral, Annaïs Carbajal, Albert Martínez-Silvestre, Manel López-Béjar   +5 more
doaj   +1 more source

Individual variability shapes interaction rewiring and fosters ecosystem restoration by reintroduced giant tortoises in the Seychelles

Restoration Ecology, Volume 34, Issue 4, May 2026.
Abstract Introduction Giant tortoises are critical for restoring lost ecological interactions on islands. Following their extinction in Seychelles centuries ago, key ecosystem processes like seed dispersal, browsing, and nutrient cycling were disrupted.
Iago Ferreiro‐Arias, Sergio García‐Peña, Christopher Kaiser‐Bunbury, Pablo Vargas   +3 more
wiley   +1 more source

Population ecology of Psammobates oculifer in a semi-arid environment [PDF]

, 2013
We studied the ecology of Psammobates oculifer over 13 months near Kimberley, South Africa, to ascertain if the population’s life history traits conform to chelonian patterns in arid environments. Capture rates were highest in spring and lowest in winter
Aresco M.J., Boycott R.C., Branch B., Branch W.R., Branch W.R., Chen T.H., Davis C.L., Germano D.J., Germano D.J., Hellgren E.C., Henen B.T., Holm S., Iverson J.B., Lefebvre J., Loehr V.J.T., Medica P.A., Nagy K.A., Reznick D., Rhodin A.G.J., Rodda G.H., Schulze R.E., Stearns S.C., Wilbur H.M., Zar J.H.   +23 more
core   +1 more source

Radiographic anatomy aspects and gastrointestinal transit time in Podocnemis unifilis troschel, 1848 (Testudines, Podocnemididae). = Aspectos anátomo-radiográficos e tempo de trânsito gastrintestinal em Podocnemis unifilis troschel, 1848 (Testudines, Podocnemididae)

Acta Scientiarum: Biological Sciences, 2010
The present study analyzed the radiographic anatomy and determined thegastrointestinal transit time of Podocnemis unifilis. We used ten animals belonging to LAPAS from the Federal University of Uberlândia, Uberlândia, Minas Gerais State, Brazil.
Fernando Moraes Machado Brito, Lucélia Gonçalves Vieira, Cirilo Antônio Paula Lima, Carlos Gomes Ferreira, José Guilherme Souza Pinto, André Luiz Quagliatto Santos   +5 more
doaj  

Characterization of innate immune activity in Phrynops geoffroanus (Testudines: Chelidae)

Zoologia (Curitiba), 2009
The innate immune activity of the freshwater turtle Phrynops geoffroanus (Schweigger, 1812) was investigated, using a sheep-red-blood cell hemolysis assay.
Bruno O. Ferronato, Mark E. Merchant, Thiago S. Marques, Luciano M. Verdade   +3 more
doaj   +1 more source

Geographical Variation in Body Size and Sexual Size Dimorphism (SSD) in the Epaulette Shark (Hemiscyllium ocellatum)

Journal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim Body size is of paramount importance to the survival of all organisms because of the intimate associations between size, physiological processes and ecology. Sexual size dimorphism (SSD: differences in size between the sexes) is a direct consequence of these ecomorphological relationships, arising due to sex‐based differences in selection ...
Joel H. Gayford, Aaron M. Hasenei, Sophia M. Emmons, Carolyn R. Wheeler, Jodie L. Rummer   +4 more
wiley   +1 more source

Hawksbill (Eretmochelys imbricata) and Green Turtle (Chelonia mydas) Nesting and Beach Selection at Príncipe Island, West Africa [PDF]

, 2019
Hawksbills (Eretmochelys imbricata) and green turtles (Chelonia mydas) are the predominant nesting sea turtle species on the beaches of Príncipe Island in the Gulf of Guinea.
Bolten, Alan B., Ferreira, Rogério L., Martins, Helen R.   +2 more
core  

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, Volume 36, Issue 26, 30 March 2026.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

Growth and Survival Outcomes for Immature Gopher Tortoises in Contrasting Habitats: A Test of Drone‐Based Habitat Assessment

Ecology and Evolution
Juvenile growth rate is a critical demographic parameter, as it shortens the time to maturity and often dictates how long individuals remain vulnerable to predation.
Leyna R. Stemle, Julie M. Sorfleet, Chelsea L. Moore, Jack T. Christie, Christopher A. Searcy, Betsie B. Rothermel   +5 more
doaj   +1 more source

A Genomic Approach to Unravel Host-Pathogen Interaction in Chelonians: The Example of Testudinid Herpesvirus 3. [PDF]

PLoS ONE, 2015
We report the first de novo sequence assembly and analysis of the genome of Testudinid herpesvirus 3 (TeHV3), one of the most pathogenic chelonian herpesviruses.
Francesco C Origgi, Marco Tecilla, Paola Pilo, Fabio Aloisio, Patricia Otten, Lisandra Aguilar-Bultet, Ursula Sattler, Paola Roccabianca, Carlos H Romero, David C Bloom, Elliott R Jacobson   +10 more
doaj   +1 more source