Results 71 to 80 of about 2,626 (214)

Population dynamics, survival, and movements of Texas tortoises in a national park in southern Texas

The Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
Texas tortoise abundance in a small national park in South Texas, USA, declined by >25%, from an estimated 273 tortoises in 2014 to 204 tortoises in 2024. The severity of the decline varied across survey units, but abundance remained highest in areas having greater canopy cover and experiencing less invasion by Guinea grass.
Tracey D. Tuberville, Heather E. Gaya, Jane E. Carlson, Jeff Bracewell, Kurt A. Buhlmann   +4 more
wiley   +1 more source

Chelonian Conservation Efforts in Myanmar

, 2021
The Burmese Star Tortoise (Geochelone platynota) is a critically endangered species endemic to Myanmar. Habitat loss, degradation and unsustainable human consumption for food were the main threats for the species until it suffered a drastic decline in ...
Borja Reh (11432209)
core   +1 more source

Beaks of the Permo‐Triassic: a morpho‐functional analysis at the dawn of a novel structure in tetrapod evolution

Palaeontology, Volume 69, Issue 3, 2026.
Abstract The Triassic was a unique time for beak evolution, as seen in a wide diversity of terrestrial tetrapods. Beaks were present in dicynodont synapsid survivors of the Permo‐Triassic mass extinction event (PTME) and evolved independently several times in archosauromorphs and their relatives.
Damiano Landi, James L. King, Suresh A. Singh, Emily J. Rayfield, Michael J. Benton   +4 more
wiley   +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

Chelonian Conservation and Biology, 2002, 4(2):263--287

, 2002
The desert tortoise (Gopherus agassizii) has traditionally been viewed as an archetypal desert-adapted vertebrate. However, evidence from historical ecology, phylogenetics, anatomy, physiology, and biogeography qualifies this view significantly ...
Kristin, David J. Morafka, By Chelonian Research, H. Berry   +3 more
core  

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

The turtles of the Purbeck Limestone Group of Dorset, southern England

, 2004
The turtles from the Purbeck Limestone are revised and it is concluded that there are four shell-based cryptodire species present, namely Pleurosternon bullockii, ‘Glyptops’typocardium comb. nov., Helochelydra anglica comb. nov.,Hylaeochelys latiscutata.
Milner, Andrew R.
core  

Ontogenetic Habitat Shifts of Mauremys leprosa in Lotic and Lentic Habitats of the Sierra Morena Natural Park (Seville)

Wild
The Mediterranean pond turtle (Mauremys leprosa) is a native semi-aquatic species of the Iberian Peninsula, southern France, and North Africa, widely distributed across Mediterranean aquatic systems. Within these environments, M.
Eduardo José Rodríguez-Rodríguez, Wouter De Vries, Adolfo Marco   +2 more
doaj   +1 more source

Climatic and topographic changes since the Miocene influenced the diversification and biogeography of the tent tortoise (Psammobates tentorius) species complex in Southern Africa

BMC Evolutionary Biology, 2020
Background Climatic and topographic changes function as key drivers in shaping genetic structure and cladogenic radiation in many organisms. Southern Africa has an exceptionally diverse tortoise fauna, harbouring one-third of the world’s tortoise genera.
Zhongning Zhao, Neil Heideman, Phillip Bester, Adriaan Jordaan, Margaretha D. Hofmeyr   +4 more
doaj   +1 more source

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