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33 results for “mammal carnivores”
Figure 2 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 2. Mandible shape variation along the first four relative warps (RW). A, relative warp 1 versus 2, showing the distribution of diet classes; B, relative warp 3 versus 4, showing the distribution of diet classes; C, relative warp 1 versus 2, showing the distribution of taxonomic groups; D, relative warp 3 versus 4, showing the distribution of taxonomic groups. Shape reconstructions show the extreme shape of each RW in black lines against the consensus shape in grey lines.
Figure 1 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 1. Lateral view of a Canis lupus mandible showing the landmarks and semilandmarks used. Squares, landmarks; X, semilandmarks; 1, caudal extreme of the condyle; 2, most concave point of the mandibular notch; 3, dorso-caudal angle of the coronoid process; 4–11, semilandmarks; 12, distal extreme of the lower carnassial; 13, distal border of the protoconid projected to the base of the crown; 14, mesial border of the lower carnassial; 15, distal extreme of the c1; 16, mesial extreme of the c1; 17–28, semilandmarks; 29, anterior border of the masseteric fosa.
Figure 5 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 5. Canonical analysis of variance of taxonomic groups and diet classes. A, dietary discrimination in marsupials (factor 1 versus 2); B, discrimination of main Carnivora clades (factor 1 versus 2); C, discrimination of main Caniformia clades (factor 1 versus 2); D, discrimination of main Feliformia clades (factor 1 versus 2). Shape reconstructions show the extreme shape of each RW in black lines against the consensus shape in grey lines.
Figure 7 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 7. Allometric relationship between mandible shape and size. Consensus configuration is in the middle, shape of the largest species (Ursus arctos) to the left, and shape of the smallest species (Planigale maculate) to the right.
Figure 6 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 6. Canonical analysis of variance of taxonomic groups. A, Methateria (light grey) versus Carnivora (dark grey); B, Caniformia (dark grey) versus Feliformia (light grey).
Figure 4 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 4. Canonical analysis of variance of diet classes. A, factor 1 versus 2; B: factor 1 versus 3. Shape reconstructions show the extreme shape of each RW in black lines against the consensus shape in grey lines.
Data from: Homogenisation of carnivorous mammal ensembles caused by global range reductions of large-bodied hypercarnivores during the late Quaternary
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Data from: Endozoochorous dispersal of forest seeds by carnivorous mammals in Sierra Fría, Aguascalientes, Mexico.
<p>Some carnivorous mammals ingest fruit and disperse seeds of forest plant species capable of colonizing disturbed areas in ecosystems. The objective of the study was to evaluate the dissemination of <i>Arctostaphylos pungens</i> and <i>Juniperus deppeana</i> seeds by the grey fox (<i>Urocyon cinereoargenteus</i>), coyote (<i>Canis latrans</i>) and other carnivores in the Protected Natural Area Sierra Fría, in Aguascalientes, Mexico. Scat collection was undertaken via transects using the direct search method. The dataset contains the geographical coordinates in UTM format of the location of each of the mammalian scats found. During the study, it was possible to find scats of four species of mammals: grey fox, coyote, ringtail (<i>Bassariscus astutus</i>) and bobcat (<i>Lynx rufus</i>), therefore, for each species, a different Excel file containing the coordinates of each scat found is presented separately. It is worth mentioning that each coordinate corresponds to each scat, so some coordinates are repeated, because several scats were found in the same site forming latrines.</p>
CarniDIET 1.0: A database of terrestrial, carnivorous mammal diets
<p>Motivation: A species' diet is central to understanding many aspects of its biology, including its behaviour, movement, and ecological niche. The diets of terrestrial carnivorous mammals, defined here as species primarily consuming other mammals (hereafter, mammal-consumers), have been extensively studied and can vary in the proportion of different food types, and species, consumed across their geographic ranges. Accessibility to data capturing such variation in diets of mammal-consumers across the variety of ecosystems they occur in would provide valuable information for conservation, and open research avenues for macroevolution and macroecology. However, data on mammal-consumer diets across their geographic ranges have not been systematically collated. Here, we present CarniDIET (Version 1.0), an open-access database containing quantitative data on the diets of terrestrial mammal-consumers collated from the literature.<br> <br> Main types of variable contained: Diet records capturing the percentage of mammalian prey, to the highest taxonomic resolution available, and non-mammalian food types (e.g. birds, invertebrates) in the diets of mammal-consumers at specific sites and times. Associated data with each diet record includes, where available, age and sex of mammal-consumer, sample size, sample origin, and quantification method as well as spatial and temporal variables including dates, season, study site, altitude and coordinates.<br> <br> Spatial location and grain: Global, terrestrial. The spatial grain varies among sites from 0.03km2 to 100000km2, with a median of 170km2. Study centroids are provided as latitude-longitude coordinates.<br> <br> Time period and grain: Original diet samples were collected between 1933 and 2017, with half of studies collected between 1994 and 2008. Studies summarise diets from one month to 66 years, with a median of one year.<br> <br> Major taxa and level of measurement: Terrestrial carnivorous mammals that primarily consume other mammals (103 species). Studies generally represent species' population averages, although can include demographic breakdowns.</p>
Figure 8 in Mandible shape in marsupial and placental carnivorous mammals: a morphological comparative study using geometric morphometrics
Figure 8. Simplified phylogeny showing the optimization of mandible shape on the main clades.
CarniDIET 1.0: A database of terrestrial, carnivorous mammal diets
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Data from: Endozoochorous dispersal of forest seeds by carnivorous mammals in Sierra Fría, Aguascalientes, Mexico.
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Data from: Predator size and prey size-gut capacity ratios determine kill frequency and carcass production in terrestrial carnivorous mammals
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