Dispersal in house mice

Pocock, Michael J. O.; Hauffe, Heidi C.; Searle, Jeremy B.

doi:10.1111/j.1095-8312.2005.00455.x

Cited by 150 publications

(168 citation statements)

References 106 publications

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“…In poultry farms, however, it reaches high densities and causes many economic losses (Acha & Szyfres, 1992). If along with an increase in the area covered by its favorable habitat and a decrease in the distances that this species needs to travel among different farms, there is a decrease in abundance of native species because of habitat changes, it is likely that M. musculus also becomes a pest species in crop fields, as in Australia and New Zealand, where it is considered one of the most important pests of agriculture (Jacob, Nolte, Hartono, Subagja, & Sudarmaji, 2003;Pocock, Hauffe, & Searle, 2005).…”

Section: Discussionmentioning

confidence: 99%

Role of Landscape Scale in the Distribution of Rodents in an Agroecosystem of Argentina

Fraschina¹,

León²,

Busch³

2014

JAS

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The goal of this study was to assess the effect of the different habitats on rodent diversity, and to estimate the effect of changes in land use on the rodent abundance through different possible scenarios. We sampled poultry farms, human houses, riparian habitats, railway embankments, woodlots, pasture, crop fields and their borders. The habitats with highest frequency of captures were poultry farms and crop field borders, mainly because of Mus musculus and Akodon azarae captures, respectively. All rodent species were found in at least six of the nine habitats sampled, but in some of them with low frequency. The different habitats differed in their contribution to the abundance of each species. Crop fields and pasture borders contributed more than 40% to the abundance of A. azarae, Oxymycterus rufus, Oligoryzomys flavescens and Calomys musculinus, while poultry farms had higher abundance of M. musculus. Woodlots and railway embankments showed a high contribution to O. flavescens abundance. The increase in the area covered by crop fields and human habitats led to an increase in the abundance of M. musculus and Calomys spp. and to a decrease in the relative abundance of other species. Considering the role of habitat diversity in rodent diversity, our results suggest that none of the species studied, except M. musculus, which is highly dependent on farms, depends on a single habitat and that their abundance is supported by a variety of less perturbed habitats. The current changes in land use would generate an increase in M. musculus abundance in detriment of wildlife species which are associated with undisturbed habitats.

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Section: Discussionmentioning

confidence: 99%

Role of Landscape Scale in the Distribution of Rodents in an Agroecosystem of Argentina

Fraschina¹,

León²,

Busch³

2014

JAS

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“…This model is clearly overly simplistic. For example, there is some evidence of male-biased dispersal in this system (Pocock et al 2005). However, these rough calculations suggest that differences in N e alone cannot account for the greater differentiation seen on the X chromosome.…”

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confidence: 90%

Genome-Wide Patterns of Differentiation Among House Mouse Subspecies

2014

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One approach to understanding the genetic basis of speciation is to scan the genomes of recently diverged taxa to identify highly differentiated regions. The house mouse, Mus musculus, provides a useful system for the study of speciation. Three subspecies (M. m. castaneus, M. m. domesticus, and M. m. musculus) diverged 350 KYA, are distributed parapatrically, show varying degrees of reproductive isolation in laboratory crosses, and hybridize in nature. We sequenced the testes transcriptomes of multiple wild-derived inbred lines from each subspecies to identify highly differentiated regions of the genome, to identify genes showing high expression divergence, and to compare patterns of differentiation among subspecies that have different demographic histories and exhibit different levels of reproductive isolation. Using a sliding-window approach, we found many genomic regions with high levels of sequence differentiation in each of the pairwise comparisons among subspecies. In all comparisons, the X chromosome was more highly differentiated than the autosomes. Sequence differentiation and expression divergence were greater in the M. m. domesticus-M. m. musculus comparison than in either pairwise comparison with M. m. castaneus, which is consistent with laboratory crosses that show the greatest reproductive isolation between M. m. domesticus and M. m. musculus. Coalescent simulations suggest that differences in estimates of effective population size can account for many of the observed patterns. However, there was an excess of highly differentiated regions relative to simulated distributions under a wide range of demographic scenarios. Overlap of some highly differentiated regions with previous results from QTL mapping and hybrid zone studies points to promising candidate regions for reproductive isolation. U NDERSTANDING the genetic basis of speciation is a fundamental goal of evolutionary biology. This problem has primarily been approached in two ways: through laboratory studies using crosses and through studies of genetic variation in natural populations. Laboratory studies control for genetic background and environment, and they make it possible to connect genotype and phenotype. These types of studies have produced some spectacular successes including the identification of individual genes underlying postzygotic isolation in Drosophila (e.g., Ting et al. 1998;Presgraves et al. 2003;Brideau et al. 2006;Masly et al. 2006), Arabidopsis (Bomblies et al. 2007;Bikard et al. 2009), Mus (Mihola et al. 2009), and others (reviewed in Presgraves 2010 and Nosil and Schluter 2011).Studies of natural populations rely on the idea that regions of the genome that are important in reproductive isolation may be more differentiated than other regions of the genome. Therefore, by studying patterns of differentiation, one may gain insight into the genomic regions that underlie isolation. The idea that the genomes of closely related species are mosaics of differentiated and less differentiated regions is not new and first e...

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“…6 in Berry and Bronson, 1992;Berdoy and Drickamer, 2007), although for wild house mice in the laboratory the earliest age was 52 days for males (mean: 80 days) and 56 for females (mean: 86 days; Gerlach, 1996). Furthermore, some young wild house mice, especially females, do not leave the mother at all, but stay in the natal territory long into adulthood (Gerlach, 1990(Gerlach, , 1996Pocock et al, 2005). Mouse development is very plastic (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Coinciding with the decline of suckling, young house mice begin to leave with their siblings on short exploratory trips outside of the nest, running back to the safety of the nest between each progressively longer trip (Crowcroft, 1966;Pocock et al, 2005). These 'excursions', or temporary ventures away from the home site, are a type of 'quasi dispersal' (Pocock et al, 2005), and precede complete dispersal (the one-way movement of an individual to a new, non-overlapping home range: Stenseth and Lidicker, 1992). We therefore expected short visits away to the DC to occur in mice in their fourth week of age, with these visits gradually increasing in number and length as pups matured.…”

Section: Introductionmentioning

confidence: 99%

Leaving home: A study of laboratory mouse pup independence

Bechard

Mason

2010

Applied Animal Behaviour Science

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a b s t r a c tJuvenile wild house mice leave their mothers at 8 weeks (+). In contrast, laboratory strains of mice (lab mice) are typically 'weaned' at postnatal day (PND) 21. Lab mice might mature faster than their wild forebears; but if they do not, standard laboratory weaning likely involves maternal deprivation. We therefore investigated when lab mice voluntarily leave their mothers. C57BL/6J families were housed in home cages (HC) each attached via a tunnel to an identical 'dispersal cage' (DC); tunnel-widths allowed pups but not dams to pass. For generality, we used two common cage-types: Ancare 'shoe-boxes' (28 cm × 19 cm × 13 cm) and Thoren 'duplexes' (30 cm × 14 cm × 14 cm). Measures of pup independence were recorded PND 16-35. Pups first visited the DC at PND 21.5 ± 0.35; utilised its food/nesting material at PND 22.6 ± 1.5; and DC-use increased up to PND 35. However, maternal care continued and even at PND 35, pups spent at least 50% of their time with mothers. This differed between cage-types: 'shoe-box' mice matured faster (P < 0.01), becoming indifferent between the HC and DC by PND 35; while same aged 'duplex' mice preferred the HC, and received more maternal care (perhaps because they weighed less). Thus, similar to wild house mice, lab mouse independence occurs weeks after PND 21; independence is also plastic, affected by the local environment. 'Weaning' lab mouse pups at PND 21 therefore deprives them of maternal care, to an extent varying between different widely used cage-types. The impact this has on stress, abnormal behaviour, brain development, and inter-lab variation now needs investigating.

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Dispersal in house mice

Cited by 150 publications

References 106 publications

Role of Landscape Scale in the Distribution of Rodents in an Agroecosystem of Argentina

Role of Landscape Scale in the Distribution of Rodents in an Agroecosystem of Argentina

Genome-Wide Patterns of Differentiation Among House Mouse Subspecies

Leaving home: A study of laboratory mouse pup independence

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