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Two fish in a pod. Data from a self-sampling pilot program to separate between black hake species in W-Africa
<p>Data from self-sampling pilot trial in Senegal and Mauritanian waters where two species of black hake were separated manually onboard fishing vessels and the results then validated by genetic analysis. </p>
Taxonomic studies on Malagasy Dalbergia (Fabaceae). III. Two new species from Southeastern Madagascar and an emended description of the rosewood species D. maritima
<p>The Malagasy rosewood species <em>Dalbergia maritima</em> has a long history of unsustainable exploitation for its beautiful, burgundy-colored heartwood. As currently circumscribed, <em>D. maritima</em> has a wide geographic distribution in eastern Madagascar and exhibits significant morphological, ecological, and genetic variation, suggesting it may comprise more than a single entity. Multivariate analyses of leaf, flower, and inflorescence characters as well as eco-geographic features reveal several morphologically well delimited entities with distinct habitat preferences and/or geographic ranges, which are consistent with results from recent phylogenomic and population genomic studies of Malagasy <em>Dalbergia</em>. Based on these findings, we describe and illustrate two new species from southeastern Madagascar comprising material previously assigned to <em>D. maritima</em>, viz. <strong><em>D. pseudomaritima</em></strong>, characterized by paniculate inflorescences and small, broadly elliptic to orbicular, glabrous leaflets, and <strong><em>D. razakamalalae</em></strong>, distinguished by racemose inflorescences with large flowers, and narrowly ovate to narrowly elliptic, glabrous leaflets. <em>Dalbergia maritima</em> is consequently re-circumscribed to include only populations from east-central Madagascar, within which we recognize two subspecies, <em>D. maritima</em> subsp. <em>maritima</em>, with glabrous leaves, inflorescence axes, and gynoecia, occurring in littoral forest habitats, and <strong><em>D. maritima</em> subsp. <em>pubescens</em></strong>, with indument on these structures, and growing in evergreen humid forest farther inland. Photos are provided for each taxon, along with line drawings for the two new species. Provisional IUCN Red List assessments indicate that all three species are Endangered, <em>D. maritima</em> and <em>D. razakamalalae</em> mainly because of selective logging for trade in their high-quality heartwood, and <em>D. pseudomaritima</em> primarily because of habitat degradation due to land clearing and fire for subsistence agriculture, which has important implications for their conservation and sustainable management.</p>
Datasets for Dynamical Habitability of an Earthlike Planet with Two Giant Companions
<p>Two tables are included in this dataset:</p> <ul> <li>"Stability Results" table has the predicted stability outcomes for 80 Earthlike planets for a grid of parameters associated with two giant companions.</li> <li>"Relative Habitablity" has the calculated relative habitability for each configuration of giant planets. The relative habitability quantifies the predicted habitability for an Earthlike planet in a system with two giant planets compared to a system where the Earthlike planet is the only planet.</li> </ul> <p>See the accompanying readme files for more details on the columns of each table and the paper Bailey & Fabrycky 2022 for more information on how these datasets were created.</p>
Fig. 6. Lasianthus caeruleus Pitard. A. Flowering branchs. B. Stipule. C. Abaxial leaf surfaces. D–E in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 6. Lasianthus caeruleus Pitard. A. Flowering branchs. B. Stipule. C. Abaxial leaf surfaces. D–E. Close-up of calyces, flower buds and young fruits. F. Close-up of inflorescences and flowers. Photos by Van-Son Dang on 26 Jul. 2019.
Fig. 5. Lasianthus sonlangensis V.S in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 5. Lasianthus sonlangensis V.S.Dang, Vuong & Quan sp. nov. A. Branch. B. Abaxial and adaxial leafs surfaces. C. Stipule and flower bud. D. Infructescence. E. Flower view from above. F. Flower in side view. G. Flower in vertical section. H. Stigma. I. Stigma apical portion. Line drawings from the holotype (Dang 465) by Ba-Vuong Truong.
Fig. 4. Lasianthus sonlangensis V.S in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 4. Lasianthus sonlangensis V.S.Dang, Vuong & Quan sp. nov. A. Branch. B. Stipule and flower bud. C. Abaxial leafs surfaces. D–F. Close-up of infructescence. G–J. Close-up of flowers. Photos by Ba-Vuong Truong on 24 Apr. 2021.
Fig. 2. Lasianthus naikii V.S in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 2. Lasianthus naikii V.S.Dang & Vuong sp. nov. A. Branch. B. Abaxial leaf surfaces. C. Stipule. D. Close-up of flower. E. Fruit. Line drawings from the holotype (Dang 453) by Ba-Vuong Truong.
Fig. 3. Lasianthus formosensis Matsumura. A. Fruiting branch. B. Stipule. C. Abaxial leaf surfaces. D in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 3. Lasianthus formosensis Matsumura. A. Fruiting branch. B. Stipule. C. Abaxial leaf surfaces. D. Close-up of inflorescences and flowers. E. Fruits. Photos by Van-Son Dang on 17 Nov. 2018.
Fig. 1. Lasianthus naikii V.S in Two new species of Lasianthus Jack (Rubiaceae) from southern Vietnam
Fig. 1. Lasianthus naikii V.S.Dang & Vuong sp. nov. A. Branch. B. Stipule. C. Abaxial leaf surfaces. D. Calyces. E–F. Close-up of flowers. G–H. Mature fruits. I. Seeds. Photos by Van-Son Dang on 22 Apr. 2021.
Figure 3 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 3 Dorsal and ventral photos of glassfrogs in life. (A) Male of Hyalinobatrachium mashpi sp. nov., CJ11642 (holotype). (B) Gravid female of H. mashpi sp. nov., Mashpi Reserve, Ecuador. (C) Male of H. nouns sp. nov., ZSFQ0537. (D) Male of H. nouns sp. nov., MZUTI3299 (holotype). (E) Male of H. aureoguttatum, Ecuador. (F) Gravid female of H. aureoguttatum, Ecuador. Photos by Jaime Culebras (A, B, D, E, F) and Ross Maynard (C). Full-size DOI: 10.7717/peerj.13109/fig-3
Figure 7 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 7 Discriminant analysis of principal components (DAPC) of glassfrog species' calls. Variables analyzed include: peak frequency, maximum frequency, minimum frequency, call duration, and inter-call duration. Sample size as follows: H. adespinosai one individual, 10 calls; H. aureoguttatum six individuals, 24 calls; H. mashpi sp. nov. two individuals, 12 calls; H. pellucidum one individual, 41 calls; H. tatayoi four individuals, 26 calls; H. valerioi three individuals, 70 calls. Full-size DOI: 10.7717/peerj.13109/fig-7
Figure 10 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 10 Distribution of Hyalinobatrachium mashpi sp. nov. and H. nouns sp. nov. in Ecuador. Note that localities of the two new taxa are separated by the Intag-Guayllabamba valley. Full-size DOI: 10.7717/peerj.13109/fig-10
Figure 2 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 2 Phylogenetic position of Hyalinobatrachium mashpi sp. nov. and H. nouns sp. nov. Phy- logenetic relationships of Hyalinobatrachium inferred from the 16S mitochondrial gene under ML cri- terion. All sequences were downloaded from GenBank, except those in red (Material S2). Genbank codes are listed next to each terminal. Associated locality data is available at Genbank, as well as in Guayasamin et al. (2008, 2020), Castroviejo-Fisher et al. (2014), and Twomey, Delia & Castroviejo-Fisher (2014). Full-size DOI: 10.7717/peerj.13109/fig-2
Figure 6 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 6 Visual representation of Hyalinobatrachium mashpi sp. nov. advertisement call, with comparisons of two similar species, H. aureoguttatum and H. valerioi. The call of each species is depicted in three forms: (Top) oscillograms, waveforms representing amplitude changes over time; (Middle) spectrograms, plots of frequency over time, with higher amplitudes represented by brighter colors; and (Bottom) power spectra, representing the relative amplitude of each frequency. Full-size DOI: 10.7717/peerj.13109/fig-6
Figure 9 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 9 Habitat of Hyalinobatrachium mashpi sp. nov. (A) Tributary of the Mashpi River, Tayra Reserve, Pichincha Province, Ecuador. (B) Mashpi Reserve, Pichincha Province, Ecuador. (C) Tayra Reserve, Pichincha Province, Ecuador. (D) Habitat loss in the vicinity of Tayra Reserve, Pichincha Province, Ecuador. Photos by Jaime Culebras. Full-size DOI: 10.7717/peerj.13109/fig-9
Figure 1 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 1 Morphological measurements as obtained in this study. Measurements are described in the text. SVL, Snout–vent length; HW, Head width; IOD, Interorbital distance. Ilustrations by Valentina Nieto Fernández. Full-size DOI: 10.7717/peerj.13109/fig-1
Figure 5 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 5 Dorsal patterns of glassfrogs in life. (A) Hyalinobatrachium mashpi sp. nov., CJ11642 (holotype). (B) H. nouns sp. nov., ZSFQ0537. (C) H. aureoguttatum, SC 435. (D) H. talamancae, Costa Rica. (E) H. vireovittatum, Costa Rica. (F) H. valerioi, Costa Rica.Photos by Jaime Culebras (A, D, E, F), Jose Vieira (B) and Luis Coloma (C). Full-size DOI: 10.7717/peerj.13109/fig-5
Figure 8 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 8 Parental care in Hyalinobatrachium mashpi sp. nov. (A) Male calling at San Vicente River, Mashpi Reserve, Pichincha Province, Ecuador. (B) Male at tributary of the Mashpi River, Tayra Reserve, Pichincha Province, Ecuador. Photos by Carlos Morochz (A) and Jaime Culebras (B). Full-size DOI: 10.7717/peerj.13109/fig-8
Figure 11 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 11 Habitat of Hyalinobatrachium nouns sp. nov. (A) Tributary of the Manduriacu River, Río Manduriacu Reserve, Imbabura Province, Ecuador. (B) Tributary of the Manduriacu River, Río Manduriacu Reserve, Imbabura Province, Ecuador. (C) Río Manduriacu Reserve, Imbabura Province, Ecuador. (D) Habitat loss in the vicinity of Los Cedros Reserve, Imbabura Province, Ecuador. Photos by Jaime Culebras. Full-size DOI: 10.7717/peerj.13109/fig-11
Figure 4 in Two new glassfrogs (Centrolenidae: Hyalinobatrachium) from Ecuador, with comments on the endangered biodiversity of the Andes
Figure 4 Dorsal and ventral photos of glassfrogs in life. (A, B) Male of Hyalinobatrachium vireovittatum, Costa Rica. (C, D) Male of H. talamancae, Costa Rica. (E, F) Male of H. valerioi, Costa Rica. Photos by Jaime Culebras (A, C, D, E, F) and Josué Alberto Vargas (B). Full-size DOI: 10.7717/peerj.13109/fig-4
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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.