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365 results for “Anisoptera”
Occurrences and R code for: Dynamic distribution modeling of the Swamp Tigertail dragonfly Synthemis eustalacta (Odonata: Anisoptera: Synthemistidae) over a 20-year bushfire regime
<p>Intensity and severity of bushfires in Australia have increased over the past few decades due to climate change, threatening habitat loss for numerous species. Although the impact of bushfires on vertebrates is well-documented, the corresponding effects on insect taxa are rarely examined, although they are responsible for key ecosystem functions and services. Understanding the effects of bushfire seasons on insect distributions could elucidate long-term impacts and patterns of ecosystem recovery. Here, we investigated the effects of recent bushfires, land-cover change, and climatic variables on the distribution of a common and endemic dragonfly, the swamp tigertail (<em>Synthemis</em> <em>eustalacta</em> (Burmeister, 1839)), which inhabits forests that have recently undergone severe burning. We used a temporally dynamic species distribution modeling approach that incorporated 20 years of community-science data on dragonfly occurrence and predictors based on fire, land cover, and climate to make yearly predictions of suitability. We also compared this to an approach that combines multiple temporally static models that use annual data. We found that for both approaches, fire-specific variables had negligible importance for the models, while percent of tree and non-vegetative cover were the most important. We also found that the dynamic model outperformed the static ones when evaluated with cross-validation. Model predictions indicated temporal variation in area and spatial arrangement of suitable habitat but no patterns of habitat expansion, contraction, or shifting. These results highlight not only the efficacy of dynamic modeling to capture spatiotemporal variables, such as vegetation cover for an endemic insect species, but also provide a novel approach to mapping species distributions with sparse locality records.</p>
Linked collectors and determiners for: The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae).
Natural history specimen data linked to collectors and determiners held within, "The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c84de1cc-eca9-487e-aa1f-58e33c72c775">https://bionomia.net/dataset/c84de1cc-eca9-487e-aa1f-58e33c72c775</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c84de1cc-eca9-487e-aa1f-58e33c72c775">https://gbif.org/dataset/c84de1cc-eca9-487e-aa1f-58e33c72c775</a>. Formatted as a Frictionless Data package.
Occurrences and R code for: Dynamic distribution modeling of the Swamp Tigertail dragonfly Synthemis eustalacta (Odonata: Anisoptera: Synthemistidae) over a 20-year bushfire regime
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The mechanistic origin of amber pigmentation of Perithemis tenera (Say, 1840) wings (Anisoptera: Libellulidae)
<p>Animal coloration serves various signaling and non-signaling functions. In damselflies and dragonflies (Odonata), such colors may not only play photoprotective and/or thermoregulatory roles but also serve as visual signals during courtship and/or agonistic interactions. Here, we analyzed the coloration of <em>Perithemis tenera</em> wings, a potential secondary sexual ornament, applying spectrophotometry and visual modeling to gain a deeper understanding of their color mechanisms and functions. The amber coloration of the <em>P. tenera</em> wings results from the interaction of light with both the melanized chitin matrix and possibly ommochrome pigments. This coloration stands out significantly against the dry Brazilian savannah, the natural habitat of <em>P. tenera</em>, making it easily detectable by conspecifics. Additionally, by fitting the absorbance curve of <em>P. tenera</em> wings to the extinction coefficient of different melanins, we deduced that pheomelanin is likely the pigment embedded in the wing’s chitinous matrix. If the presence of pheomelanin is confirmed, a pigment predominantly found in vertebrates and known to be associated with an increased risk of melanoma and Parkinson’s disease, <em>P. tenera</em> could become a valuable species for studying these diseases and their potential links to pigmentation, as well as its roles in insects’ immune systems and cuticle sclerotization.</p>
Systematic and taxonomic revision of Emerald and Tigertail dragonflies (Anisoptera: Synthemistidae & Corduliidae)
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Systematics and biogeography of the Holarctic dragonfly genus Somatochlora (Anisoptera: Corduliidae)
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FIGURE 2 in A new species of Micrathyria Kirby, 1889 from México and Central America (Anisoptera: Libellulidae), with a key to Mexican species
FIGURE 2. Micrathyria paulsoni sp. nov., male paratype: a) pterothorax, b) hamuli lateral view, c) hamuli ventral view, d) cerci, lateral view, e) cerci, dorsal view, f) epiproct.
FIGURE 1 in A new species of Micrathyria Kirby, 1889 from México and Central America (Anisoptera: Libellulidae), with a key to Mexican species
FIGURE 1. Micrathyria paulsoni sp. nov., male and female in tandem, Parque Javier Clavijero, Xalapa.
FIGURES 40–42 in Stylogomphus thongphaphumensis (Odonata: Anisoptera: Gomphidae), a new gomphid dragonfly and the first record of S. malayanus Sasamoto, 2001 from Thailand
FIGURES 40–42. Male anal appendages of Stylogomphus malayanus from Thailand, (40) dorsal view; (41) lateral view; (42) ventral view. Scale =1 mm.
FIGURES 8–9 in Stylogomphus thongphaphumensis (Odonata: Anisoptera: Gomphidae), a new gomphid dragonfly and the first record of S. malayanus Sasamoto, 2001 from Thailand
FIGURES 8–9. Stylogomphus thongphaphumensis sp. nov., holotype male, (8) right-forewing; (9) right-hindwing. Scale = 5 mm.
FIGURE 36 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 36. Key structures of males of Gynacantha species. (a, c, e) S2 and S3, ventral, (b, d, f) anal appendages, dorsal: (a, b) G. rosenbergi; (c, d) G. dobsoni; (e, f) G. apiaensis; (g, i) part of hindwing, (h, j) S2 and S3, dorsal: (g, h) G. amphora; (i, j) G. dobsoni; (k, l) head: (k) G. apiaensis; (l) G. cf. stevensoni; (m–p) genital fossa, (q–t) anal appendages: (m, q) G. vanuatua; (n, r) G. vitiana; (o, s) G. koroana; (p, t) G. sp. cf. stevensoni.
FIGURE 34 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 34. Gynacantha sp. with superior anal appendages sharply pointed: (a) G. dobsoni from Australia; (b) G. dobsoni from New Caledonia, Lifou; (c, d) G. vanuatua; (e) G. vitiana; (f) G. koroana; (g) G. sp. cf stevensoni.
FIGURE 33 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 33. Gynacantha sp. with superior anal appendages not sharply pointed: (a) G. rosenbergi; (b) G. amphora; (c) G. apiaensis.
FIGURE 32 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 32. Gynacantha sp. cf stevensoni, male, habitus; insert: S2, ventral; anal appendages, dorsal.
FIGURES 12–21 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURES 12–21. Gynacantha species, male anal appendages dorsal (to show differences between width of S10 and length of superior anal appendages): (12) G. rosenbergi; (13) G. dobsoni; (14) G. amphora; (15, 16) G. vanuatua; (17) G. vitiana; (18) G. koroana; (19) G. stevensoni; (20) G. cf stevensoni; (21) G. apiaensis.
FIGURES 3–11. Gynacantha species, male S2 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURES 3–11. Gynacantha species, male S2, ventral (to show arrangement of denticles along genital fossa): (3) G. rosenbergi; (4) G. dobsoni; (5) G. amphora; (6) G. vanuatua; (7) G. vitiana; (8) G. koroana; (9) G. stevensoni; (10) Gynacantha cf stevensoni; (11) G. apiaensis.
FIGURE 2 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 2. Gynacantha apiaensis, male, Holotype; insert: S2, ventral; S2–3, ventral; anal appendages, dorsal.
FIGURE 1 in The genus Gynacantha Rambur, 1842 in the South Pacific (Odonata: Anisoptera: Aeshnidae)
FIGURE 1. Gynacantha rosenbergi, male, Lectotype; insert male: S2, ventral; S2–3, ventral; anal appendages, dorsal.
FIGURE 11. Map depicting localities where B in Description of Bradinopyga konkanensis sp. nov. (Odonata: Anisoptera Libellulidae) from the coastal region of Maharashtra, India
FIGURE 11. Map depicting localities where B. konkanensis has been observed so far, which includes: type locality, two localities where paratype males were collected, & additional seven localities where this species has been photographed.
FIGURE 9 in Description of Bradinopyga konkanensis sp. nov. (Odonata: Anisoptera Libellulidae) from the coastal region of Maharashtra, India
FIGURE 9. Compilation of B. konkanensis and morphologically similar species. (a-b) B. konkanensis; male: Vijaydurg (not collected), female: Devgad, (c-d) B. geminata; male: Devgad, female: Talebazar, Sindhudurg District, (e-f) Indothemis carnatica; male and female: Devgad, and (g) I. limbata sita; male: Dhamapur, Sindhudurg District, Maharashtra (Photo: Parag Rangnekar), & (h) I. limbata limbata female: Thailand (Photo: Dennis Farrell).
ScienceDex guides
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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.