Results 51 to 60 of about 15,250 (257)

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende   +9 more
wiley   +1 more source

Morphological variations and sexual dimorphism in Chelonoidis carbonaria (Spix, 1824) and Chelonoidis denticulata (Linnaeus, 1766) (Testudinidae)

open access: yesBrazilian Journal of Biology
Chelonoidis Dcarbonaria and C. denticulata are two tortoises which are widely distributed Brazil. Although they occur sympatrically in different areas, C. carbonaria prefers open areas, while C. denticulata chooses forest areas. Significant morphological
MS Barros   +3 more
doaj   +1 more source

Histological description and bone compactness analysis of fossil (Aldabrachelys sp.) and extant Aldabra giant tortoise (Aldabrachelys gigantea) shell bone fragments

open access: yesThe Anatomical Record, EarlyView.
Abstract Aldabra Atoll, north of Madagascar and part of the Seychelles Outer Islands, is home to the Aldabra giant tortoise, Aldabrachelys gigantea, the only survivor of several species of giant tortoises that were once widespread on islands across the Western Indian Ocean.
Stefanie Herter   +9 more
wiley   +1 more source

Anatomy Museum: An educational resource for community anatomy education

open access: yesAnatomical Sciences Education, EarlyView.
Abstract University Community Outreach Programs play an important role in the education of Health Sciences students by providing experiences that extend beyond traditional classroom learning and strengthen the integration between teaching, research, and social engagement.
Ticiana Sidorenko de Oliveira Capote   +6 more
wiley   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Dermatophilosis in Captive Tortoises [PDF]

open access: yesJournal of Veterinary Diagnostic Investigation, 1999
ogenesis of canine parvovirus enteritis: sequential virus distribution and passive immunization. Vet Pathol 22:617–624. 12. Olsen CW: 1993, A review of feline infectious peritonitis virus: molecular biology, immunopathogenesis, clinical aspects, and vaccination. Vet Microbiol 36:1–37. 13.
D A, Bemis, C S, Patton, E C, Ramsay
openaire   +2 more sources

The man who loved tortoises [PDF]

open access: yes, 2006
The captive breeding and management of the Western Swamp Tortoise Pseudemydura umbrina is a major zoological success story.Yet such programs do not operate in a social vacuum, and they have many critics.
Christensen, L.J.
core  

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

Resolving the biome debate: ecological and palaeo‐data concur that the extensive tree‐limited grassy biomes of central and north‐western Madagascar are largely anthropogenic

open access: yesBiological Reviews, EarlyView.
ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph   +7 more
wiley   +1 more source

Predicting connectivity from movement trajectories and step selection

open access: yesEcography, EarlyView.
Predicting and mapping connectivity are essential for ecology and conservation in the face of environmental change. Yet connectivity modeling is challenging because it requires understanding how organisms successfully move across complex landscapes.
Robert J. Fletcher Jr   +8 more
wiley   +1 more source

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