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288 results for “Sigmodontinae”
FIGURE 3 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species
FIGURE 3. Phylogenetic relationships of cytochrome b haplotypes of species of Delomys with their respective karyotypes and geographic distributions of clades identified in the phylogeny. Haplotypes in bold occur sympatrically at the type locality of D. d. collinus. Numbers next to nodes refer to their bootstrap support values and posterior probabilities estimated in the maximumlikelihood and Bayesian phylogenetic analyses.
FIGURE 1 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species
FIGURE 1. Collecting localities for specimens of Delomys sp. nov. (triangles) and D. dorsalis (circles) examined in this study. Localities from Mt. Itatiaia are highlighted in the inset. Acronyms refer to the Brazilian states of (ES) Espírito Santo, (MG) Minas Gerais, (RJ) Rio de Janeiro, (SP) São Paulo, (PR) Paraná, (SC) Santa Catarina and (RS) Rio Grande do Sul, and to the Argentinean province of Misiones (MI). All localities are listed in the Appendix.
FIGURE 13 in An integrative appraisal of the diversification in the Atlantic forest genus Delomys (Rodentia: Cricetidae: Sigmodontinae) with the description of a new species
FIGURE 13. Distribution of (a) the intraspecific mitochondrial clades and (b) geographic variation in the number of mammae in Delomys dorsalis (white circles ─ 6 mammae; black circles ─ 8 mammae). The inset (c) shows the pectoral mammary pair variation mapped on the molecular phylogeny of Delomys.
Does stress mess with rodents’ heads? Influence of habitat availability and genetic factors in mandible fluctuating asymmetry (FA) in South American water rats (Nectomys squamipes, Sigmodontinae) from Brazilian Atlantic rainforest remnants
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Data from: Local persistence of Mann’s soft-haired mouse Abrothrix manni (Rodentia, Sigmodontinae) during Quaternary glaciations in southern Chile
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Tempo and mode of evolution of Oryzomyine rodents (Rodentia, Cricetidae, Sigmodontinae): a phylogenomic approach
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FIGURE 13 in The Akodon boliviensis species group (Rodentia: Cricetidae: Sigmodontinae) in Argentina: species limits and distribution, with the description of a new entity
FIGURE 13. Akodon polopi, new species (holotype MACN 23486): live trapped specimen.
Figure 9 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species
Figure 9. Cranium and mandible of Oligoryzomys victus (NHM 97.12.26.1). Scale bar: 5 mm.
Figure 4 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species
Figure 4. Plantar view of left hindfoot of Megalomys desmarestii (NHM 50.11.30.6). Scale bar: 1 cm.
Figure 1 from: Gonzalez-Ittig RE, Kandel NP, Bonvicino CR, Salazar-Bravo J (2019) Does the widely distributed rodent Calomys tener (Cricetidae: Sigmodontinae) constitute a single evolutionary unit? Zoologia 36: 1-11. https://doi.org/10.3897/zoologia.36.e30354
Figure 1 Geographical locations of individuals listed in Table 1. Vegetation formations are represented by ecoregions like Cerrado, Humid Chaco, Rainforests (including the phytogeographic regions Alto Paraná Atlantic forest + Araucaria moist forest + Serra do Mar coastal forest), Dry Forests (Mato Grosso seasonal forest + Atlantic dry forest) and Savannas (Southern cone Mesopotamian savanna + Uruguayan savanna). The star indicates the type locality of Calomys tener: Lagoa Santa in the state of Minas Gerais corresponding to the Cerrado ecoregion. This map was designed using free spatial data of QGIS (Quantum GIS Development Team, 2018), available at: http://qgis.osgeo.org.
Figure 4 from: Gonzalez-Ittig RE, Kandel NP, Bonvicino CR, Salazar-Bravo J (2019) Does the widely distributed rodent Calomys tener (Cricetidae: Sigmodontinae) constitute a single evolutionary unit? Zoologia 36: 1-11. https://doi.org/10.3897/zoologia.36.e30354
Figure 4 Phylogram of the Bayesian consensus tree obtained from COI data set for species of Calomys with emphasis in Calomystener. The order of the support values in the nodes is as follows: Bayesian posterior probabilities/maximum likelihood bootstrap/maximum parsimony bootstrap. Sequences from GenBank are indicated with their accession number and the species names. In the clade corresponding to C.tener the haplotype letter, the specimen having each haplotype and the sampling locality is indicated.
Figure 3 from: Gonzalez-Ittig RE, Kandel NP, Bonvicino CR, Salazar-Bravo J (2019) Does the widely distributed rodent Calomys tener (Cricetidae: Sigmodontinae) constitute a single evolutionary unit? Zoologia 36: 1-11. https://doi.org/10.3897/zoologia.36.e30354
Figure 3 Median-joining network showing the relationships and relative abundance of the 28 haplotypes (indicated by a number) detected in Calomystener. The different colors indicate the country where each haplotype was detected. Each bar through the solid line represents one nucleotide difference between haplotypes. The black circle (mv1) represents a median vector.
Figure 2 from: Gonzalez-Ittig RE, Kandel NP, Bonvicino CR, Salazar-Bravo J (2019) Does the widely distributed rodent Calomys tener (Cricetidae: Sigmodontinae) constitute a single evolutionary unit? Zoologia 36: 1-11. https://doi.org/10.3897/zoologia.36.e30354
Figure 2 Phylogram of the Bayesian consensus tree obtained from Cyt-b data set for species of Calomys with emphasis in Calomystener. The order of the support values in the nodes is as follows: Bayesian posterior probabilities/maximum likelihood bootstrap/maximum parsimony bootstrap. Sequences from GenBank are indicated with their accession number and the species names. In the clade corresponding to C.tener the haplotype number, the specimen having each haplotype and the sampling locality is indicated. The vertical bars represent associations also observed in the network of Fig. 3, although with no statistical support. The intraspecific relationships recovered with the different phylogenetic methods are indicated.
Figure 1 in Necromys lasiurus (Cricetidae: Sigmodontinae) from open areas of the Atlantic Forest of Rio de Janeiro: Population structure and implications for the monitoring of hantaviruses
Figure 1. Distribution of Necromys lasiurus sample groups by ecoregion. The points are color-coded by ecoregion and sample group. Insert map shows the Brazilian biomes.
FIGURE 3 in Ontogenetic And Sexual Variation In Cranial Characters Of Aegialomys Xanthaeolus (Thomas, 1894) (Cricetidae: Sigmodontinae) From Ecuador And Peru
FIGURE 3: Clusters tested in this study.
FIGURE 2 in Ontogenetic And Sexual Variation In Cranial Characters Of Aegialomys Xanthaeolus (Thomas, 1894) (Cricetidae: Sigmodontinae) From Ecuador And Peru
FIGURE 2: Detail of map showing known collection localities for Aegialomys xanthaeolus.
Table 2 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species
<p><b>Table 2.</b> Condition of morphological characters for West Indian rice rat taxa</p><table><tbody><tr><th>Character trait</th><th><i>Pennatomys</i></th><th><i>Megalomys</i></th><th><i>Oligoryzomys</i></th></tr></tbody><tbody><tr><th>Size</th><td>Medium</td><td>Large</td><td>Small</td></tr><tr><th>Pedal plantar pads</th><td>Unknown</td><td>Hypothenar absent or vestigial, digitals large</td><td>Hypothenar present, digitals small</td></tr><tr><th>Nasals posterior extension</th><td>Even with maxillary–frontal– lacrimal suture</td><td>Posterior to maxillary–frontal– lacrimal suture</td><td>Even with maxillary–frontal– lacrimal suture</td></tr><tr><th>Lacrimal articulation</th><td>Equal maxillary and frontal</td><td>Primarily with maxillary</td><td>Equal maxillary and frontal</td></tr><tr><th>Supraorbital shape</th><td>Slightly convergent anteriorly with weak crest</td><td>Convergent anteriorly with well-developed crest</td><td>Squared, smooth margins</td></tr><tr><th>Posterior margin of zygomatic plate</th><td>Slightly anterior to M1 alveolus</td><td>Approximately even with M1 alveolus</td><td>Anterior to M1 alveolus</td></tr><tr><th>Carotid circulation pattern</th><td>Unknown</td><td>III*</td><td>II*</td></tr><tr><th>Anterior section of masseteric crests in ramus</th><td>Joined</td><td>Separated</td><td>Separated</td></tr><tr><th>Labial accessory root on M1</th><td>Absent</td><td>Present</td><td>Unknown†</td></tr><tr><th>Roots on m2</th><td>3</td><td>3</td><td>Unknown†</td></tr><tr><th>Roots on m3</th><td>2</td><td>3</td><td>Unknown†</td></tr><tr><th>Anteromedian flexus on M1</th><td>Absent</td><td>Present, shallow</td><td>Present, deep</td></tr><tr><th>Mesofossette on M2</th><td>Single</td><td>Single</td><td>Double</td></tr><tr><th>Posteroloph on M3</th><td>Absent</td><td>Present</td><td>Present</td></tr><tr><th>Anterolophid on m2 and m3</th><td>Present</td><td>Present</td><td>Absent</td></tr></tbody></table><p><i>Megalomys</i> characters are based on <i>Megalomys luciae</i> and <i>Megalomys desmarestii</i> only.</p><p>*Pattern II, stapedial foramen present, sphenofrontal foramen absent; pattern III, stapedial foramen and sphenofrontal foramen absent.</p><p>†Other species of <i>Oligoryzomys</i> do not have a labial accessory root on M1, and have only two roots on m2 and m3.</p>
Table 1 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species
<p><b>Table 1.</b> Measurement data for <i>Megalomys desmarestii</i>, <i>Megalomys luciae</i>, and <i>Oligoryzomys victus</i> (mm)</p><table><tbody><tr><th><i>Measurement</i></th><th><i>M. desmarestii</i></th><th><i>M. desmarestii</i></th><th><i>M. luciae</i></th><th><i>O. victus</i></th></tr><tr><th>(NHM 50.11.30.5-6)</th><th>(NHM 55.12.24.201)</th><th>(NHM 53.12.16.2)</th><th>(NHM 97.12.26.1)</th></tr></tbody><tbody><tr><th>Greatest skull length</th><td>55.2</td><td>–</td><td>–</td><td>–</td></tr><tr><th>Condylo-incisive length</th><td>53.6</td><td>–</td><td>47.5</td><td>–</td></tr><tr><th>Breadth of occipital condyles</th><td>9.6</td><td>–</td><td>9.8</td><td>–</td></tr><tr><th>Length of diastema</th><td>17.8</td><td>16.9</td><td>15.6</td><td>7.8</td></tr><tr><th>Palatal bridge</th><td>14.0</td><td>12.8</td><td>13.0</td><td>6.2</td></tr><tr><th>Length of incisive foramen</th><td>9.4</td><td>8.3</td><td>7.8</td><td>5.4</td></tr><tr><th>Breadth of incisive foramen</th><td>3.3</td><td>3.1</td><td>2.7</td><td>2.1</td></tr><tr><th>Length of maxillary molars</th><td>8.2</td><td>9.4</td><td>7.7</td><td>4.5</td></tr><tr><th>Breadth of first maxillary molar</th><td>2.5</td><td>2.6</td><td>2.5</td><td>1.4</td></tr><tr><th>External alveolar breadth</th><td>10.7</td><td>10.5</td><td>10.4</td><td>5.6</td></tr><tr><th>Cranial height</th><td>15.7</td><td>14.6</td><td>13.7</td><td>9.3</td></tr><tr><th>Rostrum length</th><td>21.0</td><td>–</td><td>–</td><td>11.2</td></tr><tr><th>Rostrum breadth</th><td>11.4</td><td>10.6</td><td>9.0</td><td>6.1</td></tr><tr><th>Least interorbital breadth</th><td>9.1</td><td>9.7</td><td>9.4</td><td>5.1</td></tr><tr><th>Orbital length</th><td>17.4</td><td>17.5</td><td>15.6</td><td>11.0</td></tr><tr><th>Zygomatic breadth</th><td>30.6</td><td>–</td><td>26.9</td><td>16.7</td></tr><tr><th>Breadth of braincase</th><td>16.9</td><td>–</td><td>15.1</td><td>11.4</td></tr><tr><th>Breadth of zygomatic plate</th><td>7.8</td><td>6.1</td><td>6.1</td><td>3.9</td></tr><tr><th>Head–body length</th><td>257</td><td>312</td><td>261</td><td>94</td></tr><tr><th>Tail length</th><td>254</td><td>278</td><td>145*</td><td>121</td></tr><tr><th>Hindfoot length (with claw)</th><td>45</td><td>59</td><td>50</td><td>25</td></tr><tr><th>Length of internal side of ear</th><td>18</td><td>20</td><td>18</td><td>14</td></tr></tbody></table><p>*The tail of NHM 53.12.16.2 is incomplete.</p>
Table 3 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species
<p><b>Table 3.</b> Tooth row measurements of Pennatomys nivalis <b>gen. et sp. nov</b>. populations from Nevis, St. Eustatius, and St. Kitts (mm)</p><table><tbody><tr><th></th><th>Nevis</th><th>St. Eustatius</th><th>St. Kitts</th></tr></tbody><tbody><tr><th>Maxillary molar row (occlusal)</th><td>6.12 (5.6–6.4)</td><td>6.39 (6.1–6.7)</td><td>6.57 (6.4–6.7)</td></tr><tr><td>SD = 0.249, <i>n</i> = 14</td><td>SD = 0.188, <i>n</i> = 14</td><td>SD = 0.137, <i>n</i> = 6</td></tr><tr><th>Mandibular molar row (occlusal)</th><td>6.61 (5.9–7.1)</td><td>6.65 (6.4–6.9)</td><td>6.84 (6.4–7.4)</td></tr><tr><td>SD = 0.237, <i>n</i> = 41</td><td>SD = 0.141, <i>n</i> = 22</td><td>SD = 0.240, <i>n</i> = 13</td></tr></tbody></table><p>Size range, standard deviation, and sample size given for each measurement.</p>
Linked collectors and determiners for: Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa.
Natural history specimen data linked to collectors and determiners held within, "Systematic studies of the genus Aegialomys Weksler, Percequillo and Voss, 2006 (Rodentia: Cricetidae: Sigmodontinae): Annotated catalogue of the types of the species-group taxa". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/e7e6ad24-2178-4b57-a87e-a1caacac13ab">https://bionomia.net/dataset/e7e6ad24-2178-4b57-a87e-a1caacac13ab</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/e7e6ad24-2178-4b57-a87e-a1caacac13ab">https://gbif.org/dataset/e7e6ad24-2178-4b57-a87e-a1caacac13ab</a>. Formatted as a Frictionless Data package.
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