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| Registros recuperados: 47 | |
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| Pacheco,Marcelle; Kajin,Maja; Gentile,Rosana; Zangrandi,Priscilla L.; Vieira,Marcus V.; Cerqueira,Rui. |
| A major difficulty in the application of probabilistic models to estimations of mammal abundance is obtaining a data set that meets all of the assumptions of the model. In this paper, we evaluated the concordance correlation among three population size estimators, the minimum number alive (MNA), jackknife and the model suggested by the selection algorithm in CAPTURE (the best-fit model), using long-term data on three Brazilian small mammal species obtained from three different studies. The concordance correlation coefficients between the abundance estimates indicated that the probabilistic and enumeration estimators were highly correlated, giving concordant population estimates, except for one species in one of the studies. The results indicate the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Rainforest; Capture-mark-recapture; Didelphimorphia; MNA; Rodentia. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200008 |
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| Gonçalves,Gislene L.; Faria-Correa,Mariana A.; Cunha,Adriano S.; Freitas,Thales R. O.. |
| Feeding damage caused by Euryzygomatomys spinosus (G. Fischer, 1814) (Echimyidae) is documented for a Pinus taeda Linnaeus (Pinaceae) plantation located in Cambará do Sul, Rio Grande do Sul State, Brazil. Under laboratory conditions, feeding acceptance of P. taeda trunk sections was tested with positive results for E. spinosus, but not for other three co-occurring sigmodontine rodents: Akodon montensis Thomas, 1913, Oligoryzomys nigripes (Olfers, 1818) and Delomys dorsalis (Hensel, 1872). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bark feeding; Echimyids; Pine plantations; Rodentia. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000100037 |
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| ARDENTE,Natália Carneiro; FERREGUETTI,Átilla Colombo; GETTINGER,Donald; LEAL,Pricila; MARTINS-HATANO,Fernanda; BERGALLO,Helena Godoy. |
| ABSTRACT This study was the first to evaluate the efficiency of trapping methods in the study of small mammals in the Carajás National Forest, southeastern Brazilian Amazon. It is an area with a unique vegetation type (metalofilic savannah or Canga). The aims of this study were to compare the efficiency of two trapping methods (i.e. live-traps and pitfalls), the bait types used, and evaluate if trapping success varied seasonally. We used four sampling grids, each with six parallel transects. The trap effort for live-traps and pitfalls was 51,840 trap*nights and 10,800 bucket*nights, respectively. We used three types of bait: a paste of peanut butter and sardines, bacon, and bananas. We placed one type of bait in each trap, alternating between points. We... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Live-traps; Pitfall-traps; Didelphimorphia; Rodentia; Capture rate. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200123 |
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| Oliveira,H.H.; Gomes,V.; Amorim,M.; Gazêta,G.S.; Serra-Freire,N.M.; Quinelato,I.P.F.; Morelli-Amaral,V.F.; Almeida,A.B.; Carvalho,R.W.; Carvalho,A.G.. |
| Durante 24 meses foram capturados, inspecionados e liberados no mesmo espaço do Parque Estadual da Pedra Branca, Rio de Janeiro, 96 marsupiais e 64 roedores. Neles foram recolhidos manualmente 105 carrapatos, de 10 espécies em duas famílias. A espécie de carrapato dominante entre os roedores foi Amblyomma longirostre e entre os marsupiais foi Ixodes loricatus. Houve correlação direta significativa entre a temperatura e a intensidade de parasitismo por carrapatos. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ixodidae; Didelphimorphia; Rodentia; Mata Atlântica. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000401097 |
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| Freudenthal, M.; Martín-Suárez, E.. |
| Reconstructing the body mass of a fossil animal is an essential step toward understanding its palaeoecological role. Length × width (L×W) of the first lower molar (m1) is frequently used as a proxy for body mass in fossil mammals. However, among rodents, Muroidea have no premolar and an elongated m1, whereas other groups have a premolar and a m1 that is not elongated. This leads to an overestimation of body mass in muroids and/or an underestimation in other rodents. To solve this problem we assembled data of upper and lower tooth row length and body mass in extant rodents, and calculated regression equations for all rodents, rodents with premolars, rodents without premolars and for taxonomic groups at superfamily or family level. Data for complete tooth... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Rodentia; Body mass; 42.84; 38.22. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/469427 |
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| Freudenthal, M.; Martín-Suárez, E.. |
| We present estimates for head and body length (HBL) of fossil rodents. We assembled HBL data and tooth row length data (LTR, UTR) for a large number of extant rodents, and calculated regression lines of HBL on LTR and UTR for all rodents together (all-rodents equation), and for separate taxonomic groups (family equations). In fossil rodents, data for complete tooth rows are scarce, therefore we use the sum of the lengths of the teeth (LRsum, URsum) as a surrogate for tooth row length. The relation between this parameter and real tooth row length (LTR, UTR) is calculated on the basis of a number of populations for which both parameters are available. We estimate HBL of fossil rodents, using LRsum and URsum and the regression lines of extant rodents, and we... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Rodentia; Body mass; Teeth; Tooth row length. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/607530 |
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| Bordignon,Marcelo; Margarido,Teresa Cristina C; Lange,Rogério R. |
| In this work was identifyed the diferents opening forms of the palm nuts Syagrus romanzoffiana by brazilian squirrel Sciurus ingrami in four diferents points of Curitiba, Paraná, Brazil. Was caracterized tive basic forms of opening, in acording with the number of incisions and opening aspects. The form with lower number of incisions (two) was also the greather frequently in the four points sampled (66,25%; N = 5194) well as registred the lower opening time (7,2 ± 1,7 min) in relationship with other forms (9,2 ± 2,3 min). To explicate the diferences in the frequences of forms discovered, is proposed "apprenticeship's hypothesis" which the young squirrels of the population, along the opening nuts apprenticeship, to passing of the forms with larger number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rodentia; Sciuridae; Seed predation; Squirrel behavior; Palm nuts. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400002 |
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| Paresque,Roberta; Silva,Maria José de Jesus; Yonenaga-Yassuda,Yatiyo; Fagundes,Valéria. |
| The karyotypes of 85 specimens of Oligoryzomys nigripes (Rodentia, Sigmodontinae) collected in the Cerrado and Atlantic Forest of seven states of Brazil were analyzed. Eighty four specimens presented a karyotype with 2n = 62 and one individual had 2n = 61 due to a monosomy of the X chromosome. High levels of intra- and inter-population karyotypic variability, due to sex chromosomes heteromorphisms and pericentric inversions in four autosomes (pairs 2, 3, 4 and 8), led to a variation of the autosomal arm numbers (fundamental number, FN) from 78 to 82. Synaptonemal complex analyses revealed normal meiosis in males heterozygous for pericentric inversions. We found 39 different cytotypes, 27 of which are herein described for the first time. A literature survey... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pericentric inversion; Oryzomyini; Oligoryzomys nigripes; Rodentia; Clinal variation. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100010 |
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| Autino,Analía G.; Nava,Santiago; Venzal,José M.; Mangold,Atilio J.; Guglielmone,Alberto A.. |
| El análisis de una colección de garrapatas de mamíferos del noroeste argentino, depositados en la Colección de Anexos de la Colección Mamíferos Lillo (CML) de la Universidad Nacional de Tucumán, permitió ampliar el área de distribución de Ixodes luciae Sénevet, a las provincias de Salta y Tucumán e incrementar su rango de huéspedes al roedor sigmodontino Calomys callosus (Rengger) y a los marsupiales de la familia Didelphidae Micoureus constantiae (Thomas), Thylamys cinderella Thomas y Thylamys venustus (Thomas). Se registró a C . callosus y Oligoryzomys destructor (Tschudi) como nuevos huéspedes de Ixodes pararicinus Keirans & Clifford, y a los Carnivora Lycalopex gymnocercus (Fischer) y Oncifelis geoffroyi (d´Orbigny & Gervais)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amblyomma; Carnivora; Didelphimorphia; Ixodes; Rodentia. |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802006000100003 |
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| FALCÓN-ORDAZ,JORGE; FERNÁNDEZ,JESÚS A; GARCÍA-PRIETO,LUIS. |
| On the basis of the revision of the type material of Aspiculuris ackerti Kruidenier & Mehra, 1959, and new specimens collected from Neotoma nelsoni Goldman, 1905 (Rodentia: Cricetidae), in Veracruz, Mexico, we herein to which A. ackerti is transferred as Lamotheoxyuris ackerti This new genus differs from all other genera included in 1) mouth surrounded by six lips; 2) extension of lateral alae describe a new genus (Lamotheoxyuris n. gen.), (Kruidener & Mehra, 1959) n. gen., n. comb. Heteroxynematinae by the following main traits: reduced; and 3) lack of caudal alae. |
| Tipo: Journal article |
Palavras-chave: Aspiculuris ackerti; Mexico; Nematoda; Rodentia; USA. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000200007 |
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| DRUMOND, P. M.; SILVA, F. P. C. da; ROSAS, G. K. C.; GAIA, C.. |
| Entre os anos de 2004 e 2008, sete inventários de mamíferos foram realizados em quatro áreas sob manejo florestal madeireiro e não madeireiro localizadas ao sul do Estado do Acre. A partir de transectos lineares instalados nas áreas, foi possível identificar 32 espécies pertencentes às ordens Artiodactyla, Perissodactyla, Carnivora, Primates, Rodentia e Xenarthra, que incluíram as espécies ameaçadas de extinção, de distribuição geográfica restrita ou pouco conhecidas. Entre os animais observados destaca-se a predominância dos primatas nas quatro áreas estudadas. Nesse caso, especula-se sobre a possibilidade desse grupo taxonômico ser utilizado como bioindicador da qualidade ambiental das áreas de manejo florestal no Estado do Acre. |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Western Amazon; Amazonia Occidental; Manejo florestal; RESEX Chico Mendes; Acre; Amazônia Ocidental; Relaciones entre el hombre y la vida salvaje; Mamíferos; Manejo de vida silvestre; Manejo forestal; Xenarthra.; Comunidades rurales; Administração florestal; Propriedade rural; Inventário.; Assentamento; Fauna silvestre; Mamífero; Rodentia; Forest management; Rural communities; Human-wildlife relations; Wildlife management; Mammals; Artiodactyla; Perissodactyla; Carnivora; Primates.. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/951784 |
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| PARÉS-CASANOVA,PERE MIQUEL. |
| ABSTRACT The mammalian masticatory apparatus is a highly plastic region of the skull and thus subjected to singular ontogenetic trajectories. Here we present the first descriptive allometric pattern study of mandible among the capybara (Hydrochoerus hydrochaeris), based on the study of 37 specimens. Allometric changes in shape were analyzed using geometric morphometrics techniques and the pattern of allometry was visualized. A multivariate regression of the shape component on size, estimated by the logarithm of centroid size, appeared as highly significant. Therefore, a major component of shape variation in these mandibles is related to the attainment of adult size (i.e., growth). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capybara; Jaw; Ontogeny; Rodentia; Scaling. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017003500451 |
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| Registros recuperados: 47 | |
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