Home-range and space use by Didelphis albiventris (Lund 1840) (Marsupialia, Didelphidae) in Mutum Island, Paraná river, Brazil

Sanches, Vitor Quadros Altomare; Gomes, Mariuciy Menezes de Arruda; Passos, Fernando C.; Graciolli, Gustavo; Ribas, Augusto Cesar de Aquino

doi:10.1590/s1676-06032012000400004

Cited by 14 publications

(6 citation statements)

References 34 publications

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“…The infected opossums were all captured on pig and dairy farms and one D. albiventris was found inside a food storage shed of a dairy farm with high human activity. Since these opossums have home ranges that exceeded the farm limits, with moving areas around the nesting place of 7.04 ha for D. albiventris (Sanches Quadros Altomare et al, 2012) and 0.95 ha for L. crassicaudata (Cajal, 1981), they could use the surrounding rural habitats of the farms. Also, individuals of Norway rat (Rattus norvegicus), black rat (R. rattus), and house mouse (Mus musculus) have been previously found infected with T. spiralis on the farms studied in the present survey (Lovera R, unpublished data).…”

Section: Discussionmentioning

confidence: 99%

First report of Trichinella spiralis from the white-eared (Didelphis albiventris) and the thick-tailed opossum (Lutreolina crassicaudata) in central Argentina

et al. 2014

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SummaryTrichinellosis is a zoonotic disease caused by nematodes of the genus Trichinella. Humans, who are the final hosts, acquire the infection by eating raw or undercooked meat of different animal origin. Trichinella spiralis is an encapsulated species that infects mammals and is widely distributed in different continents. In Argentina, this parasite has been reported in the domestic cycle that includes pigs and synanthropic hosts (mainly rats and some carnivores). This is the first report of T. spiralis in the opossums Didelphis albiventris and Lutreolina crassicaudata in Argentina, and the first report in opossums in South America. In this survey, Trichinella larvae were detected by enzymatic digestion in three D. albiventris and one L. crassicaudata captured on pig and dairy farms located in the northeast of Buenos Aires province. The microscopic examination of the 32 larvae isolated presented the diagnostic characteristic of the genus Trichinella. Two larvae isolated from two D. albiventris and one from L. crassicaudata were identified as T. spiralis by nested multiplex PCR and confirmed by sequencing. Further research to determine the burdens of T. spiralis in opossums may contribute to a better understanding of the risk of T. spiralis transmission to the synanthropic populations.

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Section: Discussionmentioning

confidence: 99%

First report of Trichinella spiralis from the white-eared (Didelphis albiventris) and the thick-tailed opossum (Lutreolina crassicaudata) in central Argentina

et al. 2014

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“…aurita 's home range is 11 km and D . albiventris' home range is 6 km, [ 31 , 32 ]). Thus 12 km will assure independent occurrence data for both species.…”

Section: Methodsmentioning

confidence: 99%

Which Factors Determine Spatial Segregation in the South American Opossums (Didelphis aurita and D. albiventris)? An Ecological Niche Modelling and Geometric Morphometrics Approach

et al. 2016

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Didelphis albiventris and D. aurita are Neotropical marsupials that share a unique evolutionary history and both are largely distributed throughout South America, being primarily allopatric throughout their ranges. In the Araucaria moist forest of Southern Brazil these species are sympatric and they might potentially compete having similar ecology. For this reason, they are ideal biological models to address questions about ecological character displacement and how closely related species might share their geographic space. Little is known about how two morphologically similar species of marsupials may affect each other through competition, if by competitive exclusion and competitive release. We combined ecological niche modeling and geometric morphometrics to explore the possible effects of competition on their distributional ranges and skull morphology. Ecological niche modeling was used to predict their potential distribution and this method enabled us to identify a case of biotic exclusion where the habit generalist D. albiventris is excluded by the presence of the specialist D. aurita. The morphometric analyses show that a degree of shape discrimination occurs between the species, strengthened by allometric differences, which possibly allowed them to occupy marginally different feeding niches supplemented by behavioral shift in contact areas. Overlap in skull morphology is shown between sympatric and allopatric specimens and a significant, but weak, shift in shape occurs only in D. aurita in sympatric areas. This could be a residual evidence of a higher past competition between both species, when contact zones were possibly larger than today. Therefore, the specialist D. aurita acts a biotic barrier to D. albiventris when niche diversity is not available for coexistence. On the other hand, when there is niche diversification (e.g. habitat mosaic), both species are capable to coexist with a minimal competitive effect on the morphology of D. aurita.

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“…Due to its generalist habit, D. albiventris is highly flexible in the use of space, exploiting a variety of vertical strata and occupying large home ranges (Almeida et al, 2008;Sanches et al, 2012). The species is widely distributed in deciduous forests, occurring from northeastern and central Brazil to central and southern Uruguay, as well as in Paraguay, Argentina and Bolivia (Cerqueira and Tribe, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Mitochondrial DNA have revealed degree of population structure for many species, being the most used molecular marker for tracing the geographic distribution of genealogical lineages (Avise et al, 1987). Males and females of the D. albiventris present similar patterns of dispersal (Sanches et al, 2012), and the sex of the specimen should be irrelevant to the selection of the molecular marker, consequently the matrilineal inheritance of the mitochondria should not interfere in the analyses. Notably, mitochondrial genes have been used successfully in population-level and phylogenetic studies of small mammals (Carvalho et al, 2011;Agrizzi et al, 2012;Sousa et al, 2012;Muller et al, 2013;Rocha et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability of populations of the white-eared opossum, Didelphis albiventris Lund 1840 (Didelphimorphia; Didelphidae) in Brazil

et al. 2019

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Didelphis albiventris are found throughout Northeast and Central Brazil to central-southern Uruguay and it was subject of few studies in a population level. Given this, the present study investigated the genetic variability of the species using the mitochondrial molecular marker cytochrome oxidase c subunit I. We analyzed samples from the different biomes within three Brazilian regions: Northeast (Caatinga , Cerrado, and Atlantic Forest), Southeast (Cerrado , Atlantic Forest, Cerrado/Atlantic Forest, and Cerrado/Caatinga ecotones) and South (Pampa and Atlantic Forest). Software BAPs retrieved five distinct demes: dm 1, dm 2, and dm 5 that occurs in South, Northeast and Southeast regions respectively and the dm 3 and dm 4 are wide distributed in Northeast and Southeast. Population analysis performed with AMOVA, haplotype network and Mantel test estimated the veracity of the demes. The FST shows structuring for the five demes, with dm 1 (South region) isolated from the others, however the other analysis showed the Northeast/Southeast demes (dm 2-5) united, diagnosing gene flow between them, mainly at the transitional zones, in areas as far away as areas with similar latitude interval (Southeast vs South) that was not detected gene flow. In the haplotype network, the mutational steps was conclusive in split dm1 from dm 2-5 with 15 mutational steps and the Mantel test was moderated, which is explained by genetic similarity despite the great geographic distances (Northeast/Southeast). Thus, our analysis recognized two different lineages (South and Northeast/Southeast) and indicate that the biomes were not decisive in their isolation. The sharing of demes at the transitional zones and in areas with high latitudinal intervals reflects a recent ancestral polymorphism for D. albiventris. The plasticity in the occupation of the space by this species contributes in its wide dispersion capability, that is, geographical distribution. Our results revealed important implications for the management of D. albiventris in these transitional zones areas where demes were shared.

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Home-range and space use by Didelphis albiventris (Lund 1840) (Marsupialia, Didelphidae) in Mutum Island, Paraná river, Brazil

Cited by 14 publications

References 34 publications

First report of Trichinella spiralis from the white-eared (Didelphis albiventris) and the thick-tailed opossum (Lutreolina crassicaudata) in central Argentina

First report of Trichinella spiralis from the white-eared (Didelphis albiventris) and the thick-tailed opossum (Lutreolina crassicaudata) in central Argentina

Which Factors Determine Spatial Segregation in the South American Opossums (Didelphis aurita and D. albiventris)? An Ecological Niche Modelling and Geometric Morphometrics Approach

Genetic variability of populations of the white-eared opossum, Didelphis albiventris Lund 1840 (Didelphimorphia; Didelphidae) in Brazil

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