Results 31 to 40 of about 4,999 (213)
Se analiza la representación arqueológica de cuatro especies de ungulados (Lama guanicoe, Blastocerus dichotomus, Ozotoceros bezoarticus y Mazama gouazoubira) explotados por las poblaciones humanas que habitaron el sector centro-oriental de la Región ...
Alejandro Acosta, Leonardo Mucciolo
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Background Migration is a widespread strategy among ungulates to cope with seasonality. Phenology, especially in seasonally snow-covered landscapes featuring “white waves” of snow accumulation and “green waves” of plant green-up, is a phenomenon that ...
Malena Candino +2 more
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A case of allosuckling in wild guanacos (Lama guanicoe)
Although allosuckling, the lactation of non-filial offspring, can be a costly behavior, it has been reported in several species across a wide range of mammalian orders. Monotocous species such as ungulates exhibit this behavior less frequently than polytocous species, and most cases have been reported among captive specimens.
Zapata, Beatriz +4 more
openaire +4 more sources
En este trabajo se resume y reflexiona en forma crítica sobre la contribución de Tonni y Politis (1980) referida a la distribución del guanaco (Lama guanicoe) en la Provincia de Buenos Aires durante el Pleistoceno Tardío–Holoceno.
Gustavo Politis
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Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund +3 more
wiley +1 more source
Challenges and opportunities in mitigating sarcoptic mange in wild South American camelids
Wild South American camelids—vicuña and guanaco—face threats from sarcoptic mange, a contagious skin disease linked to severe population declines. Despite its impact, major gaps remain in understanding disease dynamics. This review summarizes current knowledge, identifies key data and management gaps, and outlines urgent actions for effective ...
Alynn M. Martin +13 more
wiley +1 more source
Background Eulychnia acida is an endemic Chilean cactus species whose fruits show several traits that, taken as a whole, are compatible with a seed dispersal syndrome by large herbivore vertebrates. Since only a few large native mammals exist in Chile at
Rocío A. Cares +4 more
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Análisis taxonómico e inferencias paleoambientales en el sudoeste santafesino: el sitio arqueológico Laguna El Doce [PDF]
Se presentan los resultados del análisis de más de 9000 especímenes faunísticos procedentes de las recolecciones superficiales efectuadas en el sitio arqueológico Laguna El Doce (departamento General López, provincia de Santa Fe).
Cornaglia Fernández, Jimena
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Zooarqueología, Lama guanicoe, y dinámica evolutiva del Chaco Serrano
Este trabajo evalúa preliminarmente la sustentabilidad a lo largo del Holoceno de un sistema de subsistencia basado en la caza de Lama guanicoe. Se plantea que dadas las condiciones de aislamiento biogeográfico las poblaciones de estos animales en las Sierras de Córdoba serían sensibles a la predación humana y que una estrategia de subsistencia basada ...
Medina, Matías, Rivero, Diego
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Se analizan los restos óseos de cauquén (Chloephaga sp.) recuperados en el sitio arqueológico a cielo abierto Laguna Las Vegas, cuenca media del río Coyle (Santa Cruz).
Juan Bautista Belardi, Luciana Stoessel
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