Results 51 to 60 of about 774 (182)

Morphofunctional Space of the Forelimb in Caraguatypotherium munozi (Notoungulata; Mesotheriidae): Insights Into Wrist‐Powered Digging

Journal of Morphology, Volume 286, Issue 8, August 2025.
Caraguatypotherium munozi displays a distinctive morphofunctional configuration combining high wrist flexor leverage with reduced elbow mechanical advantage—traits consistent with wrist‐dominated scratch‐digging. Multivariate analyses place it outside the core morphospaces of extant locomotor groups.
Paul Medina‐González, Karen Moreno
wiley   +1 more source

Limb bone stress in the mara Dolichotis patagonum (Caviomorpha; Caviidae; Dolichotinae)

, 2020
Fil: Vassallo, Aldo Ivan. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales.
Vassallo, Aldo Iván, Rocha Barbosa, Oscar   +1 more
openaire   +3 more sources

Genetic diversity and population structure of the Guinea pig (Cavia porcellus, Rodentia, caviidae) in Colombia [PDF]

Genetics and Molecular Biology, 2011
The aim was to establish the genetic diversity and population structure of three guinea pig lines, from seven production zones located in Nariño, southwest Colombia. A total of 384 individuals were genotyped with six microsatellite markers. The measurement of intrapopulation diversity revealed allelic richness ranging from 3.0 to 6.56, and observed ...
Burgos-Paz, William, Cerón-Muñoz, Mario, Solarte-Portilla, Carlos   +2 more
openaire   +5 more sources

Surviving in the Amazon Arc of Deforestation: Richness and Defaunation of Mammals in Priority‐Protected Areas of the Brazilian Midwest

Austral Ecology, Volume 50, Issue 7, July 2025.
We found rich and compositionally different assemblages of medium and large‐sized mammals in protected areas on the southern edge of Amazon. However, both have high rates of mammal defaunation. We argue that anthropogenic threats in the Amazon Arc of Deforestation are eroding large ungulate populations, especially peccaries.
Mateus Melo‐Dias, Letícia G. Ribeiro, Julia F. Queiroz, Marcos Penhacek, Rogério José Custódio, Domingos de Jesus Rodrigues, Clarissa Rosa   +6 more
wiley   +1 more source

Two rodent suborders have evolved missing amino acids in the lipid‐binding region of apolipoprotein E

Lipids, Volume 60, Issue 3, Page 143-153, May 2025.
Abstract The order Rodentia comprises nearly 45% of all extant taxa, currently organized into 31 living families, some 450 genera, and roughly 2010 species (Kelt & Patton, 2020). Considering that rodents began evolving at least 66 million years ago, it is not surprising that they have diversified into five distinct suborders.
Don L. Puppione
wiley   +1 more source

Phylogeny, evolution, and systematics of theGalea musteloidescomplex (Rodentia: Caviidae) [PDF]

Journal of Mammalogy, 2010
As presently recognized, the genus Galea is composed of 3 species, G. musteloides, G. flavidens, and G. spixii. The most widely distributed species is G. musteloides (the common yellow-toothed cavy), ranging from southern Peru to southern Argentina and from sea level to over 4,000 m elevation. Our current taxonomic and systematic understanding of Galea
Jonathan L. Dunnum, Jorge Salazar-Bravo
openaire   +1 more source

From Hot to Cold Spots: Climate Change is Projected to Modify Diversity Patterns of Small Mammals in a Biodiversity Hotspot

Diversity and Distributions, Volume 31, Issue 5, May 2025.
ABSTRACT Aim Climate change represents one of the main threats to global biodiversity, and such alterations are expected to induce shifts in distribution ranges and diversity patterns. We evaluate if protected areas and forest remnants in the Atlantic Forest in South America (AF) are projected to ensure the taxonomic diversity (TD) and phylogenetic ...
Gabriela Alves‐Ferreira, Maurício Humberto Vancine, Flávio Mariano Machado Mota, Carolina Bello, Thadeu Sobral‐Souza, Alexandre R. Percequillo, Thomas E. Lacher Jr, Mauro Galetti, Ricardo S. Bovendorp   +8 more
wiley   +1 more source

Global Variation in Zooplankton Niche Divergence Across Ocean Basins

Ecology Letters, Volume 28, Issue 2, February 2025.
We explored the evidence of niche divergence between population for marine zooplankton globally. We found 44% of all population comparisons show niche divergence. Niche divergence varied across temperature and bathymetry gradients for copepods. ABSTRACT Modelling responses to climate change assumes zooplankton populations remain similar over time with ...
Niall McGinty, Andrew Irwin
wiley   +1 more source

Ultrasonographic measurements of the normal adrenal glands in guinea pigs (Cavia Porcellus)

Veterinary Radiology &Ultrasound, Volume 65, Issue 4, Page 385-391, July 2024.
Abstract Hyperadrenocorticism is an uncommon but important endocrine disease in guinea pigs, but due to its subtle clinical signs and the limited information in veterinary literature, it can be underdiagnosed or misdiagnosed. Ultrasound of the adrenal glands in patients with suspected hyperadrenocorticism can help in identifying adrenomegaly.
Domenico Sainato, Tina Pelligra, Caterina Puccinelli, Daniele Petrini, Simonetta Citi   +4 more
wiley   +1 more source

Ramos colaterais do Arco aórtico do preá (Galea spixii Wagler, 1831)

Pesquisa Veterinária Brasileira, 2015
Resumo: O preá é um roedor típico da caatinga pertencente à família Caviidae. Considerando a inexistência de dados sobre o arco aórtico do preá, foi realizado este estudo tendo como objetivo descrever os ramos colaterais do arco aórtico neste cavídeo, e ...
Radan E.M. Oliveira, Gleidson B. Oliveira, Procássia M.L. Barbosa, Ferdinando V.F. Bezerra, José Fernando Gomes de Albuquerque, Carlos E. Ambrósio, Maria A. Miglino, Moacir F. Oliveira   +7 more
doaj   +1 more source