Results 1 to 10 of about 48 (45)

History of canids in Chile and impacts on prey adaptations. [PDF]

open access: yesEcol Evol, 2021
South American artiodactyls seem to be highly susceptible to feral dog predation, presenting a major conservation threat—why? We synthesize evidence as to whether feral dogs represent the first group‐hunting cursorial predator in regional evolutionary history.
Silva Rochefort B, Root-Bernstein M.
europepmc   +2 more sources

Ecology of a widespread large omnivore, Homo sapiens, and its impacts on ecosystem processes. [PDF]

open access: yesEcol Evol, 2019
The ecology of humans is usually considered separately and often using different concepts to those used for other species. We propose an ecological approach to humans based on the joint consideration of intraspecific variation and interspecific comparison.
Root-Bernstein M, Ladle R.
europepmc   +2 more sources

Cautionary tales on the use of proxies to estimate body size and form of extinct animals. [PDF]

open access: yesEcol Evol
Reconstructing the body size and form of extinct animals is of vital importance to our understanding of macroevolution and palaeontology. This is often done using anatomical proxies where extinct species are known only from fragmentary remains. However, there are many limitations influencing the selection of proxy taxa that are frequently overlooked ...
Gayford JH   +7 more
europepmc   +2 more sources

Guanaco colonisation of Tierra del Fuego Island from mainland Patagonia: Walked, swam, or by canoe?

open access: yesGeo: Geography and Environment, Volume 9, Issue 2, July‐December 2022., 2022
A geographical and biological puzzle that has perplexed scientists since the late 1800s working in southern South America: why are there so few vertebrates on the island of Tierra del Fuego compared to the adjacent Patagonia mainland, including the absence of the ubiquitous Guanaco (Lama guanicoe), wild camelid of the south? An interdisciplinary search
William L. Franklin
wiley   +1 more source

Carnivoran fossils from the Pampean region (Argentina): Santiago Roth collections in Switzerland

open access: yesSwiss Journal of Palaeontology, 2023
Santiago Roth (1850–1924) was a naturalist that collected and sold fossils from the Pampean region (Argentina) in Europe. Much of the specimens collected by Roth are hosted at the Paläontologisches Institut und Museum, Universität Zürich and Muséun D ...
Damián Ruiz-Ramoni   +3 more
doaj   +1 more source

Presencia de Arctotherium (Carnivora, Ursidae, Tremarctinae) en un nivel pre-cultural de cueva Baño Nuevo-1 (Patagonia Central, Chile)

open access: yesEstudios Geologicos, 2015
Se presenta la descripción de un I3 asignado a Arctotherium sp. proveniente del sitio Baño Nuevo-1 (Patagonia Central, Chile). El hallazgo fue realizado en la Capa 5 y está asociado a restos de Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae
P. López Mendoza   +2 more
doaj   +1 more source

Late Pleistocene carnivores (Carnivora: Mammalia) from a cave sedimentary deposit in northern Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2014
The Brazilian Quaternary terrestrial Carnivora are represented by the following families: Canidae, Felidae, Ursidae, Procyonidae Mephitidae and Mustelidae. Their recent evolutionary history in South America is associated with the uplift of the Panamanian
SHIRLLEY RODRIGUES   +3 more
doaj   +1 more source

Spectroscopic Characterization of Eoholocene Bones Found in a Cave in Northeast Brazil

open access: yesJournal of Spectroscopy, Volume 2018, Issue 1, 2018., 2018
The preservation of fossils depends on several interactions of organic and inorganic chemical processes. The hard parts, which are more suitable for fossilization, might record valuable information of biogenic processes, while the taphonomic characteristics supply information on postmortem chemical transformation.
P. V. Oliveira   +8 more
wiley   +1 more source

Middle Pleistocene revelations: unravelling taphonomic processes in mammals including Mesotherium cristatum (Mesotheriidae, Notoungulata), Corralito Site, Córdoba Province, Argentina

open access: yesPalaeontology, Volume 68, Issue 4, July/August 2025.
Abstract Taphonomic studies of Cenozoic mammals are scarce. We report a study of the taphonomy of the Corralito site (Middle Pleistocene to Holocene), Córdoba Province, Argentina, which documents the last population of the South American native ungulate typotherid Mesotherium cristatum. We discovered two specimens of M.
Marcos Fernández‐Monescillo   +6 more
wiley   +1 more source

Estimación de la masa corporal de las especies de osos fósiles y actuales (Ursidae, Tremarctinae) de América del Sur Body mass estimation of extinct and extant South American bears (Ursidae, Tremarctinae)

open access: yesRevista del Museo Argentino de Ciencias Naturales, 2009
Contar con estimaciones precisas de la masa corporal de los taxones fósiles es esencial para realizar reconstrucciones paleobiológicas. Empleando relaciones demostradas entre la masa corporal y medidas anatómicas en mamíferos modernos algunos autores han
Leopoldo Héctor Soibelzon   +1 more
doaj  

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