Results 71 to 80 of about 1,182 (176)

Beyond CREA: Evolutionary patterns of non‐allometric shape variation and divergence in a highly allometric clade of murine rodents

Ecology and Evolution, Volume 14, Issue 7, July 2024.
Rodent skulls display a highly conserved, strongly size‐dependent (allometric) range of shapes that is commonly found across mammals. We here use geometric morphometric analysis of Australian rodent cranial shape to show that this scaling is likely an emergent property of the specialised feeding biomechanics of most rodents, with other non‐size‐related
Ariel E. Marcy, D. Rex Mitchell, Thomas Guillerme, Matthew J. Phillips, Vera Weisbecker   +4 more
wiley   +1 more source

Digging for answers: contributions of density- and frequency-dependent factors on ectoparasite burden in a social mammal [PDF]

, 2015
Due to the density-dependent nature of parasite transmission parasites are generally assumed to constrain the evolution of sociality. However, evidence for a correlation between group size and parasite burden is equivocal, particularly for mammals.
Archer, EK, Bennett, NC, Faulkes, CG, Lutermann, H   +3 more
core   +2 more sources

Springhares, flying and flightless scaly‐tailed squirrels (Anomaluromorpha, Rodentia) are the squirrely mouse: comparative anatomy of the masticatory musculature and its implications on the evolution of hystricomorphy in rodents

Journal of Anatomy, Volume 244, Issue 6, Page 900-928, June 2024.
The digital dissection of the masticatory musculature of (a) Anomalurus, (b) Idiurus, (c) Zenkerella, and (d) Pedetes reveals a great degree of diversity in morphology. These taxa present a hystricomorphous condition of the skull that largely differs from those of other rodents with an enlarged foramen and reaffirms the significance of the descriptive ...
Léa Da Cunha, Pierre‐Henri Fabre, Lionel Hautier   +2 more
wiley   +1 more source

Comparative selective retention of particle size classes in the gastrointestinal tract of ponies and goats [PDF]

, 2017
There is a discrepancy in the literature on potential digesta separation mechanisms in horses, with both a selective retention of fine and of large particles postulated in different publications. To assess the net effect of such mechanisms, we fed ponies
Argenzio, Bachmann, Bjorndal, Björnhag, Björnhag, Björnhag, Björnhag, Björnhag, Brosnahan, Campbell, Carmalt, Carmalt, Clauss, Clauss, Clauss, Clauss, Clauss, Clauss, Collatos, Cox, Dabareiner, Decker, Dhanoa, Dittmann, Dittmann, Drogoul, Du Toit, Ellis, Franz, Frei, Fritz, Fritz, GfE, Gunnarsdottir, Hagen, Huhtanen, Hume, Hummel, Janis, Janzen, Jensen, Jerbi, Kienzle, Kienzle, Lanyon, Lauper, Lechner-Doll, Lopes, Matsuda, Menke, Meyer, Munn, Müller, Müller, Owens, Rakestraw, Rensberger, Schwabenbauer, Schwarm, Schwarm, Schwarm, Sellers, Sperber, Thielemans, Udén, Udén, Udén, Van Soest, Van Weyenberg, VDLUFA, Vispo, Zeyner, Zwirglmaier   +72 more
core   +1 more source

Leishmaniasis: A review of the disease and the debate over the origin and dispersal of the causaitive parasite Leishmania [PDF]

, 2009
The vector borne disease Leishmaniasis, caused by the Leishmania parasite, is estimated to affect the lives of 12 million people. Manifesting itself into three different clinical forms that center on disfiguring sores and enlargement of several organs ...
MacMorris-Adix, Molly
core   +1 more source

Evolutionary patterns of mandible shape diversification of caviomorph rodents [PDF]

, 2020
Caviomorphs are a mainly South American rodent clade with high taxonomic and ecomorphological diversity. In this study, we combine geometric morphometric, functional, ancestral reconstruction, and macroevolutionary analyses to quantify the magnitude ...
Alvarez, Alicia, de Santi, Nahuel Antu, Ercoli, Marcos Darío, Olivares, Adriana Itati, Verzi, Diego Hector   +4 more
core   +1 more source

Nutritional deficiency and placenta calcification underlie constitutive, selective embryo loss in pregnant South American plains vizcacha, Lagostomus maximus (Rodentia, Caviomorpha) [PDF]

, 2020
Plains vizcacha females are able to ovulate up to 800 oocytes per estrus cycle. However, just 10–12 embryos are implanted and only two of them, those located nearest the cervix, are gestated to term.
Claver, Juan Alberto, Ferraris, Sergio Raúl, Gariboldi, María Constanza, Giacchino, Mariela, Inserra, Pablo Ignacio Felipe, Lange, Fernando D., Vitullo, Alfredo Daniel   +6 more
core   +1 more source

Description of the femur of Protomegalonyx chasicoensis Scillato-Yané (Mammalia, Xenarthra, Megalonychidae) from the arroyo Chasicó Formation (Late Miocene): systematic consideration on the sloths of chasicóan age [PDF]

, 2009
Se realiza la descripción del fémur del perezoso Protomegalonyx chasicoenis Scillato-Yané sobre la base de un fémur derecho completo (MMP M 478) procedente de la Formación Arroyo Chasicó (Mioceno tardío), en el sudoeste de la provincia de Buenos Aires ...
Brandoni, Diego
core  

Seed Bank Estimation and Regeneration Studies of Calophyllum Apetalum Willd., from Western Ghats of Karnataka [PDF]

, 2015
Studies on the seed production, modes of dispersal and regeneration patterns of threatened tree species are crucial for the management of their genetic diversity.
Nagaraja, B.C., Prasanna Kumar, C.N., Ramachandra, K., Shivaprasad, D., Somashekar, R.K.   +4 more
core  

A brief history of caviomorph rodents as told by the fossil record [PDF]

, 2015
Fil: Vucetich, María Guiomar. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología VertebradosFil: Arnal, Michelle. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
Arnal, Michelle, Deschamps, Cecilia Marcela, Pérez, María Encarnación, Vieytes, Emma Carolina, Vucetich, María Guiomar   +4 more
core