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449 results for “relict”
Data from A functional transcriptomics analysis in the relict marsupial Dromiciops gliroides reveals adaptive regulation of protective functions during hibernation
<p>This dataset contains files with the differentially expressed genes, raw counts, DESeq2 analyses and assembled transcriptome of D. gliroides. This information is linked to the manuscript published in Molecular Ecology.</p>
Seasonal high-frequency measurements of discharge, water temperature, and specific conductivity from Harnish Creek Tributary (Relict Channel) at F11, McMurdo Dry Valleys, Antarctica (1996-2020, ongoing)
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. This package contains data pertaining to continuous monitored water quality and quantity parameters measured with automatic recording devices on streams in this region. Specifically, this metadata record describes the hydrology data set for the McMurdo Dry Valleys' Harnish Creek Tributary (Relict Channel) at the F11 streamgage, located in the Fryxell Basin of Taylor Valley. Measurements commenced during the 1996-97 season and are ongoing. This dataset extends through the first half of the 2019-20 field season.
Daily summarized seasonal measurements of discharge, water temperature, and specific conductivity from Harnish Creek Tributary (Relict Channel) at F11, McMurdo Dry Valleys, Antarctica (1996-2020, ongoing)
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor the glacial meltwater streams in that region. This package contains daily summaries derived from 15-minute measurements of water quality and quantity parameters measured with automatic recording devices on streams in this region. Specifically, this metadata record describes the daily hydrological summaries for the McMurdo Dry Valley's Harnish Creek Tributary (Relict Channel) at F11, located in the Fryxell Basin of Taylor Valley. Measurements commenced during the 1996-97 austral summer and are ongoing. This dataset extends through the first half of the 2019-20 field season.
Reconciling supertramps, great speciators and relict species with the taxon cycle stages of a large island radiation (Aves: Campephagidae)
<p><strong>Aim</strong>: The taxon cycle concept provides a geographically explicit and testable set of hypotheses for exploring the evolutionary processes underlying the distribution of species in space and time. Here, we test taxon cycle predictions within a large avian island radiation, the core Campephagidae and explicitly integrate the concepts of 'supertramps', 'great speciators' and relictualization.</p> <p><strong>Location</strong>: The Indo-Pacific, Australia, Asia and Africa.</p> <p><strong>Taxon</strong>: Corvoid passerine birds.</p> <p><strong>Methods</strong>: We constructed a new time-calibrated molecular phylogeny of the core Campephagidae (cuckoo-shrikes, cicadabirds and trillers) using Bayesian phylogenetic methods. Ancestral range estimation methods and diversification rate analyses were used to explore the dispersal and diversification history of the group. We used an extensive dataset on wing morphology and range distributions to test for correlations between evolutionary age of species and dispersal capacity, diversification and distribution, while accounting for phylogenetic non-independence.</p> <p><strong>Results</strong>: The core Campephagidae represents an ecologically homogeneous radiation distributed across the Indo-Pacific, Australia, South-East Asia and Africa. Its members represent a continuum of dispersal abilities; some species are widespread and undifferentiated ('supertramps') or show strong differentiation of local populations ('great speciators'), and a few are endemic to single islands (relicts). We show that older species relative to younger species inhabit fewer and larger islands at higher elevations. The level of intraspecific variation measured as the number of subspecies also decreases with species age, and is highest in 'great speciators' with intermediate levels of dispersal abilities (as per hand-wing index).</p> <p><strong>Main conclusions</strong>: Based on trait correlations with species age, we infer phases of range expansion and contraction over millions of years (taxon cycles), within a single monophyletic group of birds. These observations demonstrate reconciliation of the concepts of 'supertramps', 'great speciators' and relictual paleo-endemics within the temporal stages of the taxon cycle.</p>
Fig. 8 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 8. Currently known extent of occurrence of Vipera walser sp. nov. (in blue) and V. berus (in red) in north western Italy
Fig. 3 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 3. Results of the non-metric multidimensional scaling (nMDS, Bray – Curtis with similarity index), for the females (left) and males (right) conducted separately. The following variables were considered: subcaudals, crown scales, apicals, perioculars, parietals and loreals (only on the right side because V. walser show a much higher degree of asymmetry on loreal scales count, compared to V. berus). The analysis was carried out on V. walser and three groups of V. berus having the same number of samples, in order to evaluate intraspecific variability. V. walser are in red. The graphs show V. walser to be well differentiated in respect to the three groups of V. berus, which are mostly overlapping.
Fig. 10 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 10. Current and projected (2035; CMIP 5 [IPPC Fifth Assessment]) mean annual rainfall and mean minimum temperatures (° C) for the months May – October within the current range of Vipera walser sp. nov.
Fig. 9 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 9. Habitat of Vipera walser sp. nov. Valle Strona at about 1650 m (upper left), Valle Strona at about 1800 m (upper right), Valle Mastallone at 2070 m (bottom left) and Valle della Vecchia at 1830 m (bottom right)
Fig. 7 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 7. Variation in head scalation in adult female (upper four photographs) and adult male (lower four photographs) of Vipera walser sp. nov.
Fig. 4 in A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps
Fig. 4. Discriminant analysis, based on the six meristic variables, correctly classifies 94 % of females (left) and 88 % of males. The strongest discriminatory variables are crown scales and parietals. Blue = V. berus; red = V. walser
Fig. 7. Dordrecht Mountain, where a in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 7. Dordrecht Mountain, where a second population of Neoclita pringlei gen. et sp. nov. was Frst recorded in Dec. 2013 (photo: Lynette Clennell, Dordrecht, 31 Dec. 2015).
Fig. 4 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 4. Neoclita pringlei gen. et sp. nov., ♂, specimen in its natural habitat (photo: Lynette Clennell, Matatiele, 6 Dec. 2018).
Fig. 5 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 5. Neoclita pringlei gen. et sp. nov., ♀, specimen in its natural habitat (photo: Lynette Clennell, Matatiele, 6 Dec. 2018).
Fig. 3 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 3. Neoclita pringlei gen. et sp. nov., paratype, ♀, total length = 16.8 mm. A. Habitus, dorsal view. B. Habitus, ventral view. (South Africa, Eastern Cape Province, Matatiele Nature Reserve, 6 Dec. 2008, R. Perissinotto and L. Clennell leg.)
Fig. 2 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 2. Neoclita pringlei gen. et sp. nov., holotype, ♂. A. Aedeagus, dorsal view. B. Aedeagus, lateral view. (South Africa, Eastern Cape Province, Matatiele Nature Reserve, 6 Dec. 2008, R. Perissinotto and L. Clennell leg.)
Fig. 1 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 1. Neoclita pringlei gen. et sp. nov., holotype, ♂, total length = 16.3 mm. A. Habitus, dorsal view. B. Habitus, ventral view. (South Africa, Eastern Cape Province, Matatiele Nature Reserve, 6 Dec. 2008, R. Perissinotto and L. Clennell leg.)
Fig. 6 in Neoclita pringlei (Scarabaeidae, Cetoniinae), a new relict genus and species from the Drakensberg Range of South Africa
Fig. 6. Matatiele Nature Reserve, showing the mountain summit with the typical habitat of Neoclita pringlei gen. et sp. nov. (photo: Lynette Clennell, Matatiele, 6 Dec. 2008).
Figure 5 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 5. Unrooted COI ML trees for populations of taxon A (three populations, 15 specimens), Adriohydrobia gagatinella (four populations, 40 specimens; adapted from Wilke & Falniowski, 2001), and Peringia ulvae (three populations, 14 specimens; modified from Wilke & Davis, 2000; see text for details). Circle sizes are proportional to the observed number of individuals with each haplotype. Missing haplotypes are indicated by small black circles. All individuals of taxon A are areacoded (Ba = Bambinello Spring, Id = Idume Creek, TC = Torre Castiglione).
Figure 6 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 6. Salenthydrobia ferrerii sp. nov., individuals preserved in ethanol. A, holotype (ANSP, A19754). B-D, paratypes (ANSP, A19755). E, F, paratypes (SMF 323031/2).
Figure 3 in Salenthydrobia gen. nov. (Rissooidea: Hydrobiidae): a potential relict of the Messinian salinity crisis
Figure 3. Maximum likelihood tree for hydrobiine taxa based on 1127 bp of the combined COI and 16S genes. Mercuria similis and Pseudamnicola lucensis were used as outgroups. The scale bar indicates the expected number of substitutions according to the model of sequence evolution applied. For taxon A, individual DNA isolation numbers are given. Bootstrap values (in percentage) are provided (for details see text).
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.