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73 results for “Sorex”
Рис. 1. Δинамика чисΛенности меΛких мΛекопитающих в Цасучейском бору: 1 — суммарная чисΛенность (особей / 100 циΛинΑро-суток); Αоминирующие виΑы: 2 — забайкаΛьский хомячок, 3 — бурозубка тунΑряная, 4 — бурозубка крошечная, 5 — поΛёвка монгоΛьская, 6 — поΛёвка РаΑΑе, 7 — красная поΛёвка; A — остепнённый сосняк, B — первичная гарь, С — старая гарь, D — повторная гарь; стреΛка указывает время прохожΑения пожара. Ось X — гг., ось Y — чисΛенность Fig. 1. Population dynamics of small mammals in the Tsasucheysky Pine Forest: 1 — total abundance (individuals / 100 cylinder-days); dominant species: 2 — Cricetulus pseudogriseus, 3 — Sorex tundrensis, 4 — S. minutissimus, 5 — Alexandromys mongolicus, 6 — Lasiopodomys raddei, 7 — Myodes rutilus; A — steppe pine forest, B — primary burns site, С — old burns site; D — repeated burns site; the arrow indicates the time of the fire. The X-axis shows years; the Y-axis shows population density in Population dynamics of small mammals after spring fires in steppe pine forest
Рис. 1. Δинамика чисΛенности меΛких мΛекопитающих в Цасучейском бору: 1 — суммарная чисΛенность (особей / 100 циΛинΑро-суток); Αоминирующие виΑы: 2 — забайкаΛьский хомячок, 3 — бурозубка тунΑряная, 4 — бурозубка крошечная, 5 — поΛёвка монгоΛьская, 6 — поΛёвка РаΑΑе, 7 — красная поΛёвка; A — остепнённый сосняк, B — первичная гарь, С — старая гарь, D — повторная гарь; стреΛка указывает время прохожΑения пожара. Ось X — гг., ось Y — чисΛенность Fig. 1. Population dynamics of small mammals in the Tsasucheysky Pine Forest: 1 — total abundance (individuals / 100 cylinder-days); dominant species: 2 — Cricetulus pseudogriseus, 3 — Sorex tundrensis, 4 — S. minutissimus, 5 — Alexandromys mongolicus, 6 — Lasiopodomys raddei, 7 — Myodes rutilus; A — steppe pine forest, B — primary burns site, С — old burns site; D — repeated burns site; the arrow indicates the time of the fire. The X-axis shows years; the Y-axis shows population density
Linked collectors and determiners for: The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America.
Natural history specimen data linked to collectors and determiners held within, "The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/e605eaa7-c942-4658-a155-34c3e93f1e01">https://bionomia.net/dataset/e605eaa7-c942-4658-a155-34c3e93f1e01</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/e605eaa7-c942-4658-a155-34c3e93f1e01">https://gbif.org/dataset/e605eaa7-c942-4658-a155-34c3e93f1e01</a>. Formatted as a Frictionless Data package.
Text-fig. 8. The limited differentiation the schmelzmuster in Allosorex (Allosoricinae) indicates its phylogenetic position in Soricomorpha. The numbers to the right refer to the different types of schmelzmuster found in Soricidae: 1 – Soricella-schmelzmuster, 2 – Anourosorex- schmelzmuster, 3 – Crocidura-schmelzmuster, 4 – Notiosorex-schmelzmuster, 5 – Sorex-schmelzmuster, and 6 – Blarina-schmelzmuster (ex Koenigswald and Reumer 2020). in Allosorex Stenodus Fejfar, 1966 (Eulipotyphla, Soricidae): Re-Description Of Type Material And Re-Interpretation Of Its Fossil Record
Text-fig. 8. The limited differentiation the schmelzmuster in Allosorex (Allosoricinae) indicates its phylogenetic position in Soricomorpha. The numbers to the right refer to the different types of schmelzmuster found in Soricidae: 1 – Soricella-schmelzmuster, 2 – Anourosorex- schmelzmuster, 3 – Crocidura-schmelzmuster, 4 – Notiosorex-schmelzmuster, 5 – Sorex-schmelzmuster, and 6 – Blarina-schmelzmuster (ex Koenigswald and Reumer 2020).
Data from: Seasonal brain regeneration and chromosome instability are linked to selection on DNA repair in Sorex araneus
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FIGURE A6-1 in Morphospace dynamics and intraspecies variety of Sorex araneus and S. tundrensis according to recent and fossil data
FIGURE A6-1. Consensus tree based on the seven concatenated genes data set.
Figure 4. Sorex volnuchini G in Cytogenetic characteristic of the Caucasian pygmy shrew (Sorex volnuchini) and Levant mole (Talpa levantis) (Mammalia: Eulipotyphla) in northern Anatolia, Turkey
Figure 4. Sorex volnuchini G-bands (female).
Figure 3. Male C in Cytogenetic characteristic of the Caucasian pygmy shrew (Sorex volnuchini) and Levant mole (Talpa levantis) (Mammalia: Eulipotyphla) in northern Anatolia, Turkey
Figure 3. Male C-banded karyotype of Talpa levantis (male) from North Anatolia.
Figure 2. Sorex volnuchini C in Cytogenetic characteristic of the Caucasian pygmy shrew (Sorex volnuchini) and Levant mole (Talpa levantis) (Mammalia: Eulipotyphla) in northern Anatolia, Turkey
Figure 2. Sorex volnuchini C-bands (female), negative C-bands (–/–), heteromorphic C bands (–/+).
Figure 1 in Cytogenetic characteristic of the Caucasian pygmy shrew (Sorex volnuchini) and Levant mole (Talpa levantis) (Mammalia: Eulipotyphla) in northern Anatolia, Turkey
Figure 1. Sorex volnuchini standard karyotype (male).
Molecular mechanisms of seasonal brain shrinkage and regrowth in Sorex araneus
<div class="page"> <div class="layoutArea"> <div class="column"> <p>Human brains typically grow through development, then remain the same size in adulthood, and often shrink through age-related degeneration that induces cognitive decline and impaired functionality. In most cases, however, the neural and organismal changes that accompany shrinkage, especially early in the process, remain unknown. Paralleling neurodegenerative phenotypes, the Eurasian common shrew <em>Sorex</em> <em>araneus</em>, shrinks its brain in autumn through winter, but then reverses this process by rapidly regrowing the brain come spring. To identify the molecular underpinnings and parallels to human neurodegeneration of this unique brain size change, we analyzed multi-organ, season-specific transcriptomics and metabolomic data. Simultaneous with brain shrinkage, we discovered system-wide metabolic shifts from lipid to glucose metabolism, as well as neuroprotection of brain metabolic homeostasis through reduced cholesterol efflux. These mechanisms rely on a finely tuned brain-liver crosstalk that results in changes in expression of human markers of aging and neurodegeneration in Parkinson's disease and Huntington's disease. We propose metabolic shifts with signals that cross the brain-blood barrier are central to seasonal brain size changes in <em>S. araneus</em>, with potential implications for therapeutic treatment of human neurodegeneration.</p> </div> </div> </div>
Dynamic metabolic and molecular changes during seasonal shrinking in <em>Sorex araneus</em>
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FIGURE 1 in New records of ectoparasites for Mexico and their prevalence in the montane shrew Sorex monticolus (Eulipotyphla: Soricidae) at Cerro del Mohinora, Sierra Madre Occidental of Chihuahua, Mexico
FIGURE 1. Sampling localities in the Flora and Fauna Protection Area (Área de Protección de Flora y Fauna—ÁPFF) Cerro del Mohinora, Guadalupe y Calvo, Chihuahua, Mexico.
Data from: Chromosomal rearrangements do not seem to affect the gene flow in hybrid zones between karyotypic races of the common shrew (Sorex araneus)
Chromosomal rearrangements are proposed to promote genetic differentiation between chromosomally differentiated taxa and therefore promote speciation. Due to their remarkable karyotypic polymorphism, the shrews of the Sorex araneus group were used to investigate the impact of chromosomal rearrangements on gene flow. Five intraspecific chromosomal hybrid zones characterized by different levels of karyotypic complexity were studied using 16 microsatellites markers. We observed low levels of genetic differentiation even in the hybrid zones with the highest karyotypic complexity. No evidence of restricted gene flow between differently rearranged chromosomes was observed. Contrary to what was observed at the interspecific level, the effect of chromosomal rearrangements on gene flow was undetectable within the S. araneus species.
Data from: Acoustic emissions of Sorex unguiculatus (Mammalia: Soricidae): assessing the echo-based orientation hypothesis
Shrew species have been proposed to utilize an echo-based orientation system to obtain additional acoustic information while surveying their environments. This system has been supported by changes in vocal emission rates when shrews encounter different habitats of varying complexity, although detailed acoustic features in this system have not been reported. In this study, behavioral experiments were conducted using the long-clawed shrew (Sorex unguiculatus) to assess this orientation system. Three experimental conditions were set, two of which contained obstacles. Short-click, noisy, and different types of tonal calls in the audible-to-ultrasonic frequency range were recorded under all experimental conditions. The results indicated that shrews emit calls more frequently when they are facing obstacles or exploring the experimental environment. Shrews emitted clicks and several different types of tonal calls while exploring, and modified the use of different types of calls for varying behavior. Furthermore, shrews modified the dominant frequency and duration of squeak calls for different types of obstacles, i.e., plants and acrylic barriers. The vocalizations emitted at short interpulse intervals could not be observed when shrews approached these obstacles. These results are consistent with the echo-based orientation hypothesis according to which shrews use a simple echo-orientation system to obtain information from their surrounding environments, although further studies are needed to confirm this hypothesis.
FIGURE 6 in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 6. Plot of the Principal Component scores on the first two axes based on 12 log-transformed skull variables on specimens of S. chiapensis and the Sierra Madre of Guatemala.
FIGURE 4 in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 4. Plot of the Principal Component scores on the first two axes based on 12 log-transformed skull variables for specimens identified as Sorex veraepacis species group (see Table 4).
FIGURE 3 in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 3. Plot of Principal Component scores based on 12 log-transformed skull variables for specimens identified as Sorex salvini species group (see Table 3).
FIGURE 5 in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 5. Plot of the Principal Component scores on the first two axes based on 8 log-transformed skull variables for specimens identified as Sorex veraepacis including the type specimen (see Table 5).
FIGURE 2. A in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 2. A Plot of PCA scores on the first two Principal Component axes (see Table 2). Closed circles are specimens that do not possess a postmandibular foramen (the group to the upper right). Specimens possessing a postmandibular foramen are in the lower left of the graph.
FIGURE 1 in The taxonomic status of Long-tailed shrews (Mammalia: genus Sorex) from Nuclear Central America
FIGURE 1. Map of Nuclear Central America (southern Mexico and northern Central America) indicating the sample localities from which specimens of Sorex were examined. Only 36 localities are shown since several of the 53 recorded localities overlap on the map. The 1,000-m contour is shown.
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