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48 results for “Mustela”
Camera trap image of Mustela putorius (2018-12-02T18:25:28Z)
Camera Trap Image taken in <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Camera trap image of Mustela putorius (2018-08-19T06:55:02Z)
Camera Trap Image taken in <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Camera trap image of Mustela putorius (2018-08-20T10:00:28Z)
Camera Trap Image taken in <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Data from: Whole-genome analysis of Mustela erminea finds that pulsed hybridization impacts evolution at high-latitudes
At high-latitude, climatic shifts hypothetically drove episodes of divergence during isolation in glacial refugia, or ice-free pockets of land that enabled terrestrial species persistence. Upon glacial recession, populations can expand and often come into contact, resulting in admixture between previously isolated groups. To understand how recurrent periods of isolation and contact have impacted evolution at high latitudes, we investigated introgression in the stoat (Mustela erminea), a Holarctic mammalian carnivore, using whole-genome sequences. We identify two temporally isolated introgression events coincident with large-scale climatic shifts: contemporary introgression in a mainland contact zone and ancient contact ~ 200 km south along North America's North Pacific Coast. Repeated episodes of gene flow highlight the central role of cyclic climates in structuring high-latitude diversity, through refugial divergence and subsequent introgressive hybridization. Introgression followed by allopatry (e.g., insularization) may contribute to expedited divergence of island taxa experiencing substantial glacial flux.
Data from: Whole-genome analysis of Mustela erminea finds that pulsed hybridization impacts evolution at high-latitudes
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Data from: Environmental and genetic influences on body mass and resting metabolic rates (RMR) in a natural population of weasel Mustela nivalis
Body mass (BM) and resting metabolic rates (RMR) are two inexorably linked traits strongly related to mammalian life histories. Yet, there have been no studies attempting to estimate heritable variation and covariation of BM and RMR in natural populations. We used a marker-based approach to construct a pedigree and then the 'animal model' to estimate narrow sense heritability (h^2) of these traits in a free-living population of weasels Mustela nivalis – a small carnivore characterised by a wide range of BM and extremely high RMR. The most important factors affecting BM of weasels were sex and habitat type, whereas RMR was significantly affected only by seasonal variation of this trait. All environmental factors had only small effect on estimates of additive genetic variance of both BM and RMR. The amount of additive genetic variance associated with BM and estimates of heritability were high and significant in males (h^2 = 0.61), but low and not significant in females (h^2 = 0.32), probably due to small sample size for the latter sex. The results from the two-trait model revealed significant phenotypic (r_P = 0.62) and genetic correlation (r_A = 0.89) between BM and whole body RMR. The estimate of heritability of whole body RMR (0.54) and body mass corrected RMR (0.45) were lower than estimates of heritability for BM. Both phenotypic and genetic correlations between body mass corrected RMR and BM had negative signals (r_P = -0.42 and r_A = -0.58). Our results indicate that total energy expenditures of individuals can quickly evolve through concerted changes in BM and RMR.
FIGURES 73–80. 73–76. Solugamasus mustela Lee, 1973 in Catalogue of the family Ologamasidae Ryke (Acari: Mesostigmata)
FIGURES 73–80. 73–76. Solugamasus mustela Lee, 1973 [adapted from Lee, 1973]. 73. Dorsal idiosoma; 74. Ventral idiosoma; 75. Epistome; 76. Lateral (antiaxial) view of chelicera. 77–80. Gamasellus humosus Ishikawa, 1969 [adapted from Ishikawa, 1969]. 77. Dorsal idiosoma; 78. Ventral idiosoma; 79. Epistome; 80. Lateral (antiaxial) view of chelicera.
FIGURE 1. A in Rediscovery of the holotypes of Mustela africana stolzmanni Taczanowski, 1881 (Carnivora: Mustelidae) and Cuniculus taczanowskii Stolzmann, 1885 (Rodentia: Cuniculidae) at the Museum and Institute of Zoology Polish Academy of Sciences in Warsaw, Poland
FIGURE 1. A) Holotype of Amazon weasel Mustela africana stolzmanni Taczanowski, 1881 (MIZ 83480), B) Jaw and part of skull of holotype specimen of Amazon weasel (MIZ 79411), C) Holotype of Mountain paca Cuniculus taczanowskii Stolzmann, 1885 (MIZ 77780), D) A label of holotype specimen of Amazon weasel (MIZ 83480), E) A label of holotype specimen of Mountain paca (MIZ 77780).
On following pages: 42. Steppe Polecat (Mustela eversmanii); 43. Colombian Weasel (Mustela felipei); 44. Long-tailed Weasel (Mustela frenata); 45. Japanese Weasel (Mustela itatsi); 46. Yellow-bellied Weasel (Mustela kathiah); 47. European Mink (Mustela lutreola); 48. Indonesian Mountain Weasel (Mustela lutreolina); 49. Black-footed Ferret (Mustela nigripes); 50. Least Weasel (Mustela nivalis); 51. Malay Weasel (Mustela nudipes); 52. European Polecat (Mustela putorius); 53. Siberian Weasel (Mustela sibirica); 54. Back-striped Weasel (Mustela strigidorsa); 55. Egyptian Weasel (Mustela subpalmata); 56. American Mink (Neovison vison); 57. Patagonian in Mustelidae
On following pages: 42. Steppe Polecat (Mustela eversmanii); 43. Colombian Weasel (Mustela felipei); 44. Long-tailed Weasel (Mustela frenata); 45. Japanese Weasel (Mustela itatsi); 46. Yellow-bellied Weasel (Mustela kathiah); 47. European Mink (Mustela lutreola); 48. Indonesian Mountain Weasel (Mustela lutreolina); 49. Black-footed Ferret (Mustela nigripes); 50. Least Weasel (Mustela nivalis); 51. Malay Weasel (Mustela nudipes); 52. European Polecat (Mustela putorius); 53. Siberian Weasel (Mustela sibirica); 54. Back-striped Weasel (Mustela strigidorsa); 55. Egyptian Weasel (Mustela subpalmata); 56. American Mink (Neovison vison); 57. Patagonian
On following pages: 42. Steppe Polecat (Mustela eversmanii); 43. Colombian Weasel (Mustela felipei); 44. Long-tailed Weasel (Mustela frenata); 45. Japanese Weasel (Mustela itatsi); 46. Yellow-bellied Weasel (Mustela kathiah); 47. European Mink (Mustela lutreola); 48. Indonesian Mountain Weasel (Mustela lutreolina); 49. Black-footed Ferret (Mustela nigripes); 50. Least Weasel (Mustela nivalis); 51. Malay Weasel (Mustela nudipes); 52. European Polecat (Mustela putorius); 53. Siberian Weasel (Mustela sibirica); 54. Back-striped Weasel (Mustela strigidorsa); 55. Egyptian Weasel (Mustela subpalmata); 56. American Mink (Neovison vison); 57. Patagonian Weasel (Lyncodon patagonicus). in Mustelidae
On following pages: 42. Steppe Polecat (Mustela eversmanii); 43. Colombian Weasel (Mustela felipei); 44. Long-tailed Weasel (Mustela frenata); 45. Japanese Weasel (Mustela itatsi); 46. Yellow-bellied Weasel (Mustela kathiah); 47. European Mink (Mustela lutreola); 48. Indonesian Mountain Weasel (Mustela lutreolina); 49. Black-footed Ferret (Mustela nigripes); 50. Least Weasel (Mustela nivalis); 51. Malay Weasel (Mustela nudipes); 52. European Polecat (Mustela putorius); 53. Siberian Weasel (Mustela sibirica); 54. Back-striped Weasel (Mustela strigidorsa); 55. Egyptian Weasel (Mustela subpalmata); 56. American Mink (Neovison vison); 57. Patagonian Weasel (Lyncodon patagonicus).
Figure 1 in Widespread population of invasive ferrets Mustela furo (Carnivora: Mustelidae) on the island of Madeira, Macaronesia
Figure 1: Distribution of the observations of Mustela furo in Madeira island, Portugal. Coordinates and year of observation are provided in Supplementary Table S1.
Figure 2 in Widespread population of invasive ferrets Mustela furo (Carnivora: Mustelidae) on the island of Madeira, Macaronesia
Figure 2: Examples of Mustela furo observations in Madeira island. Ferret predation on (A) IUCN endangered Zino's petrel (Pterodroma madeira), (B) juvenile of Cory's shearwater (Calonectris diomedea) and (C) rodent (Rattus spp.). Photos (D) and (E) were captured during camera-trap surveys conducted in 2021 and 2023 in the Ecological Park of Funchal, respectively. Photo (F) depicts a road-killed individual.
Data from: Bayesian analysis of hybridization and introgression between the endangered european mink (Mustela lutreola) and the polecat (Mustela putorius)
Human-mediated global change will probably increase the rates of natural hybridization and genetic introgression between closely related species, and this will have major implications for conservation of the taxa involved. In this study, we analyse both mitochondrial and nuclear data to characterize ongoing hybridization and genetic introgression between two sympatric sister species of mustelids, the endangered European mink (Mustela lutreola) and the more abundant polecat (M. putorius). A total of 317 European mink, 114 polecats and 15 putative hybrid individuals were collected from different localities in Europe and genotyped with 13 microsatellite nuclear markers. Recently developed Bayesian methods for assigning individuals to populations and identifying admixture proportions were applied to the genetic data. To identify the direction of hybridization, we additionally sequenced mtDNA and Y chromosomes from 78 individuals and 29 males respectively. We found that both hybridization and genetic introgression occurred at low levels (3% and 0.9% respectively) and indicated that hybridization is asymmetric, as only pure polecat males mate with pure European mink females. Furthermore, backcrossing and genetic introgression was detected only from female first-generation (F1) hybrids of European mink to polecats. This latter result implies that Haldane's rule may apply. Our results suggest that hybridization and genetic introgression between the two species should be considered a rather uncommon event. However, the current low densities of European mink might be changing this trend.
Twenty-five metagenome assembled genomes recovered from the gut microbiome of the domestic ferret, Mustela putorius
<p>This is metadata provided in a single excel file for 25 unique metagenome assembled genomes (MAGs) recovered from the gut microbiome of three domestic ferrets (<em>Mustela putorius</em>). Details on both MAG and host ferret metadata, as well as information on sample collection, DNA sequencing, and bioinformatic processing can be found here, in association with the American Society for Microbiology Resource Announcement by Amundson et al. (in prep). </p>
Figure 3. Bayesian phylogenetic reconstruction for MHC class II in Diversity of MHC class II DRB alleles in the Eurasian population of the least weasel, Mustela nivalis (Mustelidae: Mammalia)
Figure 3. Bayesian phylogenetic reconstruction for MHC class II DRB alleles from Mustela nivalis and other species in Mustelidae, Felidae, and Canidae. Numbers near nodes are posterior probability values. Sequences from M. nivalis obtained in this study are in bold. GenBank accession numbers of previously published nucleotide sequences are in parentheses. Clades in Mustelidae are indicated by capital letters (A–G) to the right of the tree. The scale bar at the bottom shows branch length in substitutions per site. Abbreviations for species names are as follows: Cafa, Canis familiaris; Cala, Canis latrans; Calu, Canis lupus; Enlu, Enhydra lutris; Febi, Felis silvestris bieti; Feca, Felis catus; Fesi, Felis silvestris; Gugu, Gulo gulo; Meme, Meles meles; Muit, Mustela itatsi; Mulu, Mustela lutreola; Musi, Mustela sibirica; Nevi, Neovison vison; Tata, Taxidea taxus; Zaca, Zalophus californianus.
Figure 2 in Diversity of MHC class II DRB alleles in the Eurasian population of the least weasel, Mustela nivalis (Mustelidae: Mammalia)
Figure 2. Amino acid sequences deduced from the nucleotide sequences of part of Mustela nivalis MHC class II DRB exon 2. Identity with allele Muni-DRB*01 is indicated by dots. Numbers above the top sequence indicate codon positions in the β1-domain. Grey shading shows the antigen-binding site (ABS) predicted from data on the human gene HLA-DR1 (Brown et al., 1993). Asterisks indicate codons corresponding to sites under positive selection calculated from the mixed-effects model evolution (MEME) analysis. A triangle shows the recombination break point with the single break point recombination (SBP) method (see the text).
Figure 1 in Diversity of MHC class II DRB alleles in the Eurasian population of the least weasel, Mustela nivalis (Mustelidae: Mammalia)
Figure 1. Map of Eurasia showing collecting localities (black circles) for 35 specimens of Mustela nivalis in this study. The sample size at each locality is indicated in parentheses.
Data from: Environmental and genetic influences on body mass and resting metabolic rates (RMR) in a natural population of weasel Mustela nivalis
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Data from: Bayesian analysis of hybridization and introgression between the endangered european mink (Mustela lutreola) and the polecat (Mustela putorius)
Open the record for dataset details and reuse information.
Data from: Pulse of inflammatory proteins in the pregnant uterus of European polecats (Mustela putorius) leading to the time of implantation
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