Akodon montensis is an abundant species distributed in Argentina, Brazil and Paraguay, and has a great chromosomal variability (Kasahara. J Parasitol. Apr;83(2) Besnoitia sp. (Protozoa:Toxoplasmatinae) from Akodon montensis (Rodentia:Cricetidae) in Santa Catarina State, Brazil. Range Description. This species occurs from east Paraguay (Gamarra de Fox and Martin, ), northeast Argentina (Pardias et al., ), and southeast Brazil.
|Published (Last):||25 June 2016|
|PDF File Size:||8.85 Mb|
|ePub File Size:||5.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
Reproductive efforts of male Akodon montensis occurs via a four-stage process. The studied populations of Akodon montensis from Brazil showed high chromosome variability Kasahara and Yonenaga-Yassuda ; Fagundes et al. Studies indicate that A.
Montane grass mouse
Significance montdnsis are indicated by asterisks: Comparative Cytogenetics 10 1: Data collection consisted of 2 components: This article has been cited by other articles in PMC. Reproductive behavior of Akodon montensis has not been extensively studied, and the mating system that best characterizes this species is currently unknown.
Akodon montensis preys on a variety of small insects including beetlesmothsfliesand other arthropods. Alternative explanations of these results are reduced trappability of males or increased trappability of females or both during the transitional season, rather than fluctuation montenss the actual sex ratio.
Open in a separate window. The X was a medium-sized chromosome and showed two morphological variants: Although we are unable from our data to discern specific habitat parameters involved, the highest average seroprevalence levels were found in the locale with the most recent and extensive disturbance R3Bconsistent with conclusions reached in Goodin et al.
Author information Article notes Copyright and License information Disclaimer. F- values with d. Results of selected 2-way ANOVAs for population abundance and density of Akodon montensis across years and montenais locales and sex ratio and seroprevalence across seasons and locales, and 1-way ANOVAs of seroprevalence across seasons for each locale separately. Conservation status, demographic features, and habitat preference of the endemic tawny deer mouse Peromyscus akoddon.
Access to the inner core area is limited, and forest montejsis does not occur in this area due to its protected status. Traps were baited each evening with a mixture of rolled oats and peanut butter.
Estimation of Monetnsis montensis population and individual parameters. Akodon montensis is an abundant species distributed in Argentina, Brazil and Paraguay, and has a great chromosomal variability Kasahara ajodon Yonenaga-Yassuda ; Musser and Carleton Movement distances of five rodent and two marsupial species in forest fragments of the coastal Atlantic rainforest, Brazil. Additionally, two-way ANOVAs were conducted to evaluate interaction effects between serostatus and other variables, and between sex and other variables.
A total of 31 specimens of Akodon montensis 18 females and 13 males were collected from five localities of Misiones Province, Argentina Fig.
Seasonal variation in prevalence of antibody to hantaviruses in rodents from southern Argentina. Summary of the vegetation characteristics and sampling dates of the 3 mark-recapture sampling sites. Sex chromosomes of several rodents showed variation in the amount and distribution of heterochromatin Patton and Sherwood In our study population density varied considerably among our 3 sampling locales and between our 2 sampling years.
These locales were chosen to represent a cross-section of potential micro-habitat types representing a continuum of human disturbance. In contrast to the studies of Anyamba et al. For each test, F- values on the basis of ranked home-range values are shown for sex, serostatus, and interaction effect. ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe.
ADW: Akodon montensis: INFORMATION
The secret life of possums: The genus Akodon Meyen, is one of the most species-rich among sigmodontine rodents and has great chromosome variability. It is nocturnal and spends much of its time in leaf litter, where it creates tunnels to travel through and nest in.
No information is available concerning time to independence. Longevity in months was estimated for each individual at the time of each trapping session as the minimum time that the animal was known to have been alive. Stepwise regression indicated that none of the tested variables was a significant predictor of sex ratio. Experimental Cell Research