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Áreas de acción en un ensamble de roedores del Desierto del Monte (Mendoza, Argentina) Mastozool. neotrop.
Corbalán,Valeria E.; Ojeda,Ricardo A..
In the central portion of the Monte desert four small rodent species coexist: Graomys griseoflavus, Akodon molinae, Eligmodontia typus, and Calomys musculinus . Using the Convex Polygon Method, we assessed the home range of these species at different habitats and made comparisons among species, and between sexes and different seasons of the year. We found that home range did not differ among species, but there is a tendency to increase range size as the species corporal size increases. Overlapping of home range was different at different seasons of the year, probably due to different population densities, but home range size was constant along the year. Habitat type and sex affect home range only for G. griseoflavus and A. molinae, respectively.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cricetid rodents; Home range; Monte desert.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200003
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Armored invaders in patagonia: recent southward dispersion of armadillos (Cingulata, Dasypodidae) Mastozool. neotrop.
Abba,Agustín M; Poljak,Sebastián; Gabrielli,Magali; Teta,Pablo; Pardiñas,Ulyses F. J.
Patagonia, al sur de los 40° S, está actualmente habitada por Chaetophractus villosus y Zaedyus pichiy. Con el objeto de reconstruir la historia de estos armadillos en la porción austral de América del Sur durante el Pleistoceno tardío-Holoceno, compilamos y discutimos datos de registros zooarqueológicos, observaciones de naturalistas y viajeros, especímenes de museos y datos de campo. Encontramos que ambas especies experimentaron una considerable expansión de su distribución hacia el sur. De acuerdo a la evidencia obtenida concluimos que: (a) Patagonia austral estuvo básicamente libre de armadillos durante el Pleistoceno tardío- Holoceno temprano; (b) durante los últimos 10 ka, Z. pichiy invadió progresivamente el sur de la Patagonia desde el norte...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Chaetophractus; Holoceno; Impacto del hombre; Pleistoceno; Zaedyus.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832014000200010
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Arthropods and helminths assemblage in sigmodontine rodents from wetlands of the Río de la Plata, Argentina Mastozool. neotrop.
Navone,Graciela T.; Notarnicola,Juliana; Nava,Santiago; Robles,M. del Rosario; Galliari,Carlos; Lareschi,Marcela.
The assemblage of arthropods and helminths, present in sigmodontine rodents (Cricetidae) from a broad wetland area of the Río de la Plata, Argentina, was studied. A total of 250 sigmodontines were captured during a two-year sampling period: Scapteromys aquaticus and Oxymycterus rufus were the most abundant hosts, followed by Oligoryzomys nigripes, Akodon azarae, Oligoryzomys flavescens, and Deltamys kempi. There were 33102 parasites collected, corresponding with Rhopalopsyllidae fleas (Siphonaptera), Hoplopleuridae lice (Phtiraptera), Laelapidae and Macronyssidae mites, Ixodidae ticks, and Trombiculidae chiggers (Acari), the trematodes Echinostomidae, Microphallidae, and Dicrocoelidae, the flatworm Ciclophyllidea, the nematods Trichuridae, Spiruridae,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ectoparasites; Endoparasites; Río de La Plata; Rodents; Wetlands.
Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100011
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Asimetría fluctuante como un indicador de estrés ambiental en pequeños mamíferos Mastozool. neotrop.
Coda,José A; Martínez,Juan José; Steinmann,Andrea R; Priotto,José; Gomez,M. Daniela.
La esta-bilidad del desarrollo de un organismo se refleja en la capacidad que posee de producir una forma “ideal” bajo un conjunto particular de condiciones. Las estructuras bilaterales en organismos con simetría bilateral ofrecen una simetría precisa sobre la cual se pueden comparar desviaciones. La herramienta más utilizada para estimar la estabilidad del desarrollo es la asimetría fluctuante, la cual considera las pequeñas desviaciones aleatorias que ocurren entre los lados derecho e izquierdo de rasgos bilaterales, y es la única asimetría adecuada como indicador de estrés ambiental/genético. Resumimos cuatro décadas de estudios en donde la asimetría fluctuante fue utilizada para evaluar el efecto de estrés ambiental sobre pequeños...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Estabilidad del desarrollo; Medidas lineales; Morfometría geométrica; Musarañas; Roedores.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832017000200006
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Aspectos poblacionales del cacó (Hydrochoerus hydrochaeris isthmius) y amenazas para su conservación en el nor-occidente de Colombia Mastozool. neotrop.
Ballesteros Correa,Jesús; Jorgenson,Jeffrey P..
El propósito de este estudio fue determinar los aspectos de la población, amenazas y el impacto de actividades humanas sobre el cacó (Hydrochoerus hydrochaeris isthmius) en el Departamento de Córdoba (Colombia). Se muestrearon 28 transectos para conocer el censo y la distribución geográfica de la población. El área del estudio se caracteriza por valles aluviales inundables, ciénagas y pantanos, con un clima cálido y estaciones secas y lluviosas anuales periódicas. Se encontró una población de más de 10 000 individuos en el Departamento de Córdoba, en terrenos de pantanos y ciénagas. La mayor concentración se encontró a lo largo de Río Sinú con 7995 individuos. El tamaño de arroyos, pantanos y algunas ciénagas permanentes determinan la extensión del hábitat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amenazas; Conservación; Densidad de población; Distribución geográfica; Hydrochoerus hydrochaeris isthmius.
Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832009000100003
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Assemblage of chiropterans in a remnant of semideciduous seasonal forest in southern Brazil and latitudinal patterns of species diversity in the Atlantic Forest Mastozool. neotrop.
de S. Pires,Daniel Paulo; Marques,Rosane V; Cabral,Tiago C; de Lima,Camila S; Cademartori,Cristina V.
Observed and expected richness, capture success, diversity, dominance, evenness and the effect of latitude on the above variables at the regional level were evaluated with regard to the chiropteran fauna of a semideciduous seasonal forest remnant in the state of Rio Grande do Sul, southern Brazil. Sampling occurred between July 2008 and June 2010 using mist nets erected at ground level. So that chiropteran fauna could be described and compared to other studies in the Atlantic Rainforest throughout the 10°-30°S using multivariate regression. One hundred and sixteen specimens were captured, comprising 9 species and 3 families: Phyllostomidae, Vespertilionidae and Molossidae. Capture success was 0.0008 ind/m²h, with a diversity index (H’) of 1.623;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundance; Atlantic Forest; Bats; Species richness.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832014000200007
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Assembleia de morcegos em remanescente de floresta ombrófila mista no planalto de Guarapuava, Paraná, Brasil Mastozool. neotrop.
Miranda,João M. D; Zago,Luciana.
A Mata Atlântica é um dos ecossistemas mais ameaçados e ricos do mundo, contando com cerca de 113 espécies de morcegos. O objetivo do presente estudo foi caracterizar a assembléia de morcegos de um remanescente de Floresta Ombrófila Mista a 1100 metros de altitude, no planalto de Guarapuava, estado do Paraná, Brasil. Os morcegos foram capturados com dez redes de neblina instaladas acima do solo em 24 noi­tes de amostragem durante 12 meses. Um total de 160 capturas de 144 indivíduos foi realizado, sendo estes distribuídos em dez espécies, com a família Vespertilionidae sendo a mais representativa. A riqueza estimada (Chao2) foi de 12.75 ± 4.14 espécies. Sturnira lilium e Molossus molossus foram as espécies mais abundantes, com 36 capturas cada. Os morcegos...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chiroptera; Inventário de morcegos; Mata Atlântica; Vespertilioni.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832015000100006
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Atlas of New World Marsupials Mastozool. neotrop.
Flores,David A..
Tipo: Info:eu-repo/semantics/other
Ano: 2004 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832004000100016
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Bacular morphology of seven species of high andean rodents from Colombia (Rodentia: Sigmodontinae) Mastozool. neotrop.
Calderón-Capote,María C; Jerez,Adriana; Sánchez Palomino,Pedro; López-Arévalo,Hugo Fernando.
El presente trabajo describe y compara la morfología del báculo de los roedores altoandinos Thomasomys laniger, T. niveipes, T. princeps, Chilomys instans, Microryzomys minutus y Neomicroxus bogotensis distribuidos en la Cordillera Oriental colombiana dentro del Parque Natural Nacional Chingaza. Adicionalmente, describimos y analizamos el báculo de Thomasomys aureus en dos localidades de la Cordillera Central colom­biana. Se diafanizaron 16 penes de individuos adultos con alcian-blue y alizarina para un análisis detallado. Nuestros resultados mostraron que las siete especies exhibieron diferencias morfológicas presentando un báculo complejo con tres dígitos. Dentro del género Thomasomys, las especies T. aureus y T. princeps mostraron una gran...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chilomys; Microryzomys; Morfología del báculo; Neomicroxus; Thomasomys.
Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832016000100004
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Bat assemblages at a high-altitude area in the atlantic forest of southeastern Brazil Mastozool. neotrop.
Moras,Ligiane M; Bernard,Enrico; Gregorin,Renato.
Most Brazilian landscapes lie below 600 m above sea level and studies on the rich Brazilian bat fauna at higher altitudes are scarce. In this study, we investigated bat assemblages associated with different habitats in Chapada do Abanador, Minas Gerais, an area with altitudes ranging from 1000 to 1580 m. Forty-five nights of sampling (153 000 m2h) were performed in semideciduous montane forest, cloud forest and campo de altitude. A total of 137 individuals were captured, belonging to 12 species of the families Phyllostomidae and Vespertilionidae, with a large dominance of the former. Species-accumulation curves reached values close to the asymptote for the campo de altitude and cloud forest habitats, but not for montane forest, suggesting that more species...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campo de altitude; Chiroptera; Cloud forest; Semideciduous montane forest.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832013000200005
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Bat assemblages from mountain forest areas in the serra negra region, southeastern Brazil Mastozool. neotrop.
Nobre,Pedro H; Manhães,Marco A; Bastos Neto,Omar J; Rezende,Abraão C; Rodrigues,Alexmar S.
El objetivo de este trabajo es describir la composición de la comunidad de murciélagos en las zonas boscosas de montaña en la región de Serra Negra, sudeste de Brasil, y comparar la diversidad y riqueza de especies entre las laderas sur y norte. Durante noviembre 2007 hasta marzo 2010 se obtuvieron con redes de niebla un total de 608 capturas de 19 especies de murciélagos pertenecientes a las familias Phyllostomidae y Vespertilionidae. Phyllostomidae constituyó el 97.4% de las capturas, lo que representa 15 especies; Vespertilionidae conformó el 3% de las capturas, con 4 especies. Sturnira lilium fue la especie más frecuentemente capturada (n = 207), seguida de Carollia perspicillata (n = 154), Desmodus rotundus (n = 98) y Artibeus lituratus (n = 50). El...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bosque de montaña; Diversidad de murciélagos; Mata Atlántica; Riqueza de murciélagos.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832013000200006
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Bat fly (Diptera: Streblidae) parasitism in degraded and preserved areas in a Neotropical savanna Mastozool. neotrop.
Ramalho,Daniel F; Graciolli,Gustavo; Aguiar,Ludmilla M. S.
We assessed the relationship between bat fly parasitism and habitat degradation. We used mist nets to capture 522 individuals of Carollia perspicillata and 429 individuals from eight fly species in the Brazil­ian Cerrado. Specimens were captured in degraded areas surrounding protected areas and within the protected areas. Trichobius joblingi was the most frequent parasite of Carollia perspicillata; consequently, it was analyzed in greater detail. Sex and age were not critical factors for parasitism. A robust anthropogenic influence was observed; unexpectedly, a higher prevalence and abundance of bat flies were observed in preserved areas.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carollia perspicillata; Cerrado; Ectoparasite; Hippoboscoidea; Trichobius joblingi.
Ano: 2018 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832018000100021
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Bats (Chiroptera, Mammalia) in Barn Owl (Tyto alba) pellets in northern Pantanal, Mato Grosso, Brazil Mastozool. neotrop.
Escarlate-Tavares,Fabricio; Pessôa,Leila M..
Tipo: Info:eu-repo/semantics/report Palavras-chave: Bat remains; Neotropics; Owl pellets; Pantanal; Taphonomy.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000100007
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Bats (mammalia: chiroptera) from the caatinga scrublands of the crateus region, northeastern Brazil, with new records for the state of Ceará Mastozool. neotrop.
da Silva,Shirley S. P; Dias,Daniela; Martins,Mayara A; Guedes,Patrícia G; de Almeida,Juliana C; da Cruz,Alexandre P; Serra-Freire,Nicolau M; Damascena,Joyce dos S; Peracchi,Adriano L.
Whereas surveys of the bat fauna are available for some localities in the Brazilian Northeast, stud­ies in the caatinga scrublands are still limited. The aim of this study was to survey the bat fauna in an area of caatinga scrublands in the Private Natural Heritage Reserve (RPPN Serra das Almas), which is located on the Ibiapaba Plateau, State of Ceará. The bat assemblage of the reserve was surveyed in July 2012 (rainy season), and January 2013 (dry season), with a total of 19 sampling nights. We captured 347 individuals of 23 species representing six families. The bat fauna was characterized by the predominance of a few abundant species, in particular phyllostomid frugivores, and many rare species, which is frequent in studies based on mist nets at ground...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Neotropical bats; New records; Semiarid region.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832015000200011
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Bats of Saint Martin, French West Indies/Sint Maarten, Netherlands Antilles Mastozool. neotrop.
Genoways,Hugh H.; Pedersen,Scott C.; Larsen,Peter A.; Kwiecinski,Gary G.; Huebschman,Jeffrey J..
Six species of bats have been previously reported from the Antillean island of Saint Martin/Sint Maarten- Artibeus jamaicensis, Brachyphylla cavernarum, Molossus molossus, Tadarida brasiliensis, Noctilio leporinus, and Myotis nigricans nesopolus. Our field research reported herein documents an additional three species of bats from the island for the first time- Monophyllus plethodon, Ardops nichollsi, and Natalus stramineus. Re-examination of the single voucher of Myotis nigricans nesopolus has led us to exclude this species from the fauna of Saint Martin/Sint Maarten. Based on our field research and the study of specimens housed in museum collections, we present information on the eight species of bats that we have documented as occurring on Saint...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation; Distribution.
Ano: 2007 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832007000200003
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Behavioral counter-strategies against infanticide in corn mouse females, Calomys musculinus Mastozool. neotrop.
Coda,José A.; Priotto,José W.; Steinmann,Andrea R..
Based on the hypothesis that in C. musculinus both female territorial behavior and promiscuity are counter-strategies against infanticide by females and males respectively, our objective was to test the following predictions: (1) mother aggression deters infanticide by females; (2) previous matings prevent infanticide by males. We conducted 116 behavioral encounters between mothers and intruders to study the nest related behaviors. Mother-pups units (Mu) were grouped in three treatments in relation to the intruder feature: 55 Mu were placed with siring males, 27 Mu and 34 Mu were housed with non-siring males and reproductively active females, respectively. We also calculated offspring survival rate for each treatment. The nest related behaviors varied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rodent; Infanticide; Behavioral strategies; Counter-strategies; Mother aggression.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832011000200003
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Biología reproductiva de Artibeus lituratus y Artibeus jamaicensis (Phyllostomidae: Stenodermatinae) en un área urbana en Colombia Mastozool. neotrop.
Castillo-Navarro,Yeimy; Serrano-Cardozo,Víctor H; Ramírez-Pinilla,Martha P.
Se investigó la actividad reproductiva de las hembras de Artibeus lituratus y A. jamaicensis en un área urbana y su relación con la estacionalidad climática y la disponibilidad de recursos alimenticios. Durante el año 2012 se capturaron un total de 366 hembras y se evaluó su condición reproductiva por medio de morfología externa (condición del pezón, distensión abdominal) y caracterización de las fases del ciclo estral mediante citologías de frotis vaginales. Se registra el patrón de poliestría bimodal para las dos especies, y se confirma la fenología bimodal previamente reportada para A. lituratus sobre la cordillera Oriental de los Andes colombianos. El uso de las citologías optimizó la evaluación de la condición reproductiva, reconociendo receptividad...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Citologías vaginales; Estro; Murciélagos; Poliestría; Reproducción.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832017000100007
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Biologia reprodutiva de Delomys dorsalis (Hensel, 1872) - Rodentia, Sigmodontinae - em área de floresta ombrófila mista, Rio Grande do Sul, Brasil Mastozool. neotrop.
Cademartori,Cristina V.; Fabián,Marta E.; Manegheti,João O..
Delomys dorsalis is restricted to the wet tropical and subtropical forests of southern and southeastern Brazil and northeastern Argentina . The reproductive cycle of this species was studied by the histological examination of the reproductive tracts of animals caught in an area of mixed forest with conifers (29º 23' S, 50º 23' W), in southern Brazil , and from observations on a laboratory group of individuals. Fourteen expeditions were carried out from February 1997 to April 1998, during approximately 3 nights, using 140 live traps set on the ground and on branches between 1.5 and 2.0 m high. Reproductively active individuals were observed year round, although winter was marked by a reduction in breeding activity resulting from recruitment. Females showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Delomys dorsalis; Mixed forest with conifers; Reproduction; Sigmodontinae; Southern Brazil.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200002
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Biología y ecología de pequeños roedores en la regiónpampeana de Argentina: enfoques y perspectivas Mastozool. neotrop.
Galliari,Carlos.
Tipo: Info:eu-repo/semantics/review
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832010000100031
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Biology and Conservation of Wild Canids Mastozool. neotrop.
Lucherini,Mauro.
Tipo: Info:eu-repo/semantics/review
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000100015
Registros recuperados: 588
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