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553 results for “damselflies”
FIGURE 3 in The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
FIGURE 3. Megaloprepus latipennis color patterns: (a) lateral view of prothorax, pterothorax including mesostigmal plates, wing base and coxa; (b) dorsal view of prothorax. al: prothorax anterior lobe. pl: prothorax posterior lobe. mp: mesostigmal plates. cx1–3: coxae.
FIGURE 1 in The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
FIGURE 1. Geographic origin of the material included in this study. Each species is displayed using different colorations.
FIGURE 9 in The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
FIGURE 9. Megaloprepus caerulatus in copulation wheel on Barro Colorado Island (Panama) highlighting the sexual dimorphism.
FIGURE 5 in The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
FIGURE 5. Megaloprepus caerulatus color patterns: (a) lateral view of prothorax, pterothorax including mesostigmal plates, wing base and coxa; (b) dorsal view of prothorax. al: prothorax anterior lobe. pl: prothorax posterior lobe. mp: mesostigmal plates. cx1–3: coxae.
FIGURE 4 in The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species
FIGURE 4. Megaloprepus brevistigma color patterns: (a) lateral view of prothorax, pterothorax including mesostigmal plates, wing base and coxa; (b) dorsal view of prothorax. al: prothorax anterior lobe. pl: prothorax posterior lobe. mp: mesostigmal plates. cx1–3: coxae.
FIGURE 2 in A new calopterygid damselfly (Odonata, Zygoptera) from the Oligocene Ningming Basin, Guangxi, South China
FIGURE 2. Guangxicalopteryx huashanensis gen. et sp. nov., holotype NIGP179898, photographs. A, Counterpart (NIGP179898b). B, Counterpart under alcohol. C, Part (NIGP179898a), covered with a carbonaceous film. Scale bars = 5 mm.
FIGURE 3 in A new calopterygid damselfly (Odonata, Zygoptera) from the Oligocene Ningming Basin, Guangxi, South China
FIGURE 3. Guangxicalopteryx huashanensis gen. et sp. nov., holotype NIGP179898, photographs showing details. A, Wing base. B, Pterostigma in counterpart. C, Pterostigma in part. Scale bars = 2 mm in A, 1 mm in B and C.
Sexual conflict does not maintain female colour polymorphism in a territorial damselfly
<div> <div> <div> <div> <p>Female-limited dimorphism is commonly hypothesized to be an adaptation resulting from male harassment or sexual conflict over female mating rate. We examined whether males discriminate be- tween female colour morphs of the beautiful Hawaiian damselfly, Megalagrion calliphya, in order to evaluate whether male harassment could explain the existence and/or maintenance of this dimorphism. Previous studies of this species suggest that spatially varying ecological selection maintains the dimorphism, but these hypotheses are not mutually exclusive. Here, we used a common method of measuring male behaviour towards secured females at mating sites under naturally occurring conditions, using five populations that range in male-like female morph frequency from 0 to 0.86. We found very low rates of interaction in a total of 64 one-hour trials, and male behaviour towards females did not differ significantly between colour morphs. By comparing the populations that vary in female morph fre- quency, we found no evidence of frequency-dependent sexual selection on colour, suggesting that this polymorphism is maintained by selective forces other than sexual conflict.</p> </div> </div> </div> </div>
Latitudinal variation in behaviour in a damselfly
<p>We studied behavioural traits and behavioural correlations in larvae of a univoltine damselfly, <i>Lestes sponsa,</i> along its latitudinal distribution, spreading over 3300 km. We compared behavioural profiles among larvae grown either in native temperatures and photoperiods or averaged constant temperatures and photoperiods. We expected latitudinal differences in behavioural traits regardless of the conditions in which larvae were grown, with northern populations expressing higher activity, boldness and foraging efficiency.</p> <p>When grown in native conditions, northern larvae were bolder more active and more effective in prey capture than central and low latitude populations, respectively, as well as showed the strongest behavioural syndromes. In contrast, larvae reared in constant common-garden conditions showed no differences between regions in both individual traits and syndromes.</p>
FIGURE 24 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 24. Idiocnemis lakekamuensis sp. nov., ♀, Lakekamu, terminal abdominal segments in dorsal view.
FIGURE 2 in Two new damselflies from the Eocene Green River Formation (Odonata, Zygoptera, Dysagrionidae, Thaumatoneuridae)
FIGURE 2. Petrolestes inexpectatus sp. nov., holotype IP.359116. Photographs under alcohol of wing. A, part; B, counterpart. Scale bars = 5 mm.
FIGURE 1 in Two new damselflies from the Eocene Green River Formation (Odonata, Zygoptera, Dysagrionidae, Thaumatoneuridae)
FIGURE 1. Gusagrion coloratum gen. et sp. nov., holotype IP.358925. Photographs under alcohol of wing. A, part; B, xounterpart. Scale bars = 5 mm.
Figs 2–3 in First records of remarkable damselfly species Nehalennia speciosa (Odonata: Coenagrionidae) from the Republic of Karelia (Russia)
Figs 2–3. Nehalennia speciosa: 2 — male; 3 — pair in copula. Рис. 2–3. Nehalennia speciosa: 2 — самец; 3 — тандем.
Fig. 4 in First records of remarkable damselfly species Nehalennia speciosa (Odonata: Coenagrionidae) from the Republic of Karelia (Russia)
Fig. 4. Occurrences of N. speciosa in north Europe before 2005 and from 2005 onwards [from GBIF.org, 2020]. Рис. 4: Распространение N. speciosa в Северной Европе до 2005 года и после 2005 года [по: GBIF.org, 2020].
Fig. 1 in First records of remarkable damselfly species Nehalennia speciosa (Odonata: Coenagrionidae) from the Republic of Karelia (Russia)
Fig. 1. Collecting localities of N. speciosa in Karelia in 2017– 2019: 1 — Dolgiy Isl.; 2 — 2 km SE of Tereki; 3 — the mouth of Chernaya Rechka R.; 4 — Besov Nos; 5 — Mikhailovets Isl.; 6 — Cherny Cape; 7 — Bolshoy Golets Isl.; 8 — Sosnovets Isl.; 9 — 1.5 km E of Muromskiy monastery. Рис. 1. МестонахождениЯ N. speciosa в Карелии в 2017–2019 гг.: 1 — о. Долгий; 2 — 2 км юго-восточнее д. Тереки; 3 — устье р. ЧёрнаЯ речка; 4 — д. Бесов Нос; 5 — о. Михайловец; 6 — мыс Чёрный; 7 — о. Большой Голец; 8 — о. Сосновец; 9 — 1,5 км к востоку от Муромского монастырЯ.
FIGURE 27 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 27. Idiocnemis milou sp. nov., ♂, detail, Gulf Province, Papua New Guinea. Photo: Stephen J. Richards.
FIGURE 21 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 21. Idiocnemis lakekamuenis sp. nov., ♀, Lakekamu, posterior pronotal lobe in dorsal view, SEM.
FIGURE 13 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 13. Idiocnemis milou sp. nov., Lakekamu: right superior appendage in dorso-lateral view, SEM.
FIGURE 10 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 10. Idiocnemis milou sp. nov., holotype ♂, Lakekamu: right superior appendage in dorso-lateral view.
FIGURE 9 in Two new damselflies of the genus Idiocnemis Selys from Gulf Province, Papua New Guinea (Odonata: Platycnemididae)
FIGURE 9. Idiocnemis lakekamuensis sp. nov., holotype ♂, Lakekamu: right superior appendage in dorso-lateral view.
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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.