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221 results for “tropical spiders”
Fig. 7 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 7. Ariamnes columnaceus sp. nov., holotype male. A. Pedipalpus, prolateral view; B. Pedipalpus, retrolateral view. Scale bar = 0.10 mm.
Fig. 2 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 2. Allothymoites repandus sp. nov., holotype male. A. Pedipalpus, ventral view; B. Conductor, ventral view; C. TTA, ventral view; D. Embolus, ventral view. Scale bars = 0.05 mm.
Fig. 6 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 6. Allothymoites sculptilis sp. nov., holotype male. A. Pedipalpus (cymbium removed), ventral view; B. Pedipalpus, ventral view; C. Pedipalpus, prolateral view; D. Pedipalpus, retrolateral view. Scale bars = 0.05 mm.
Fig. 5 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 5. Allothymoites sculptilis sp. nov., holotype male. A. Pedipalpus, ventral view; B. MA and conductor, ventral view; C. Embolus, ventral view. Scale bars = 0.10 mm.
Fig. 1 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 1. Allothymoites repandus sp. nov., holotype male. A. Pedipalpus, prolateral view; B. Pedipalpus, retrolateral view; Scale bar = 0.05 mm.
Fig. 13 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 13. Carniella foliosa sp. nov., holotype male. A. Pedipalpus, prolateral view; B. Pedipalpus, retrolateral view. Scale bar = 0.10 mm.
Fig. 9 in Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China
Fig. 9. Ariamnes columnaceus sp. nov., holotype male. A. Pedipalpus (cymbium removed), ventral view; B. Pedipalpus, ventral view; C. Pedipalpus, prolateral view; D. Pedipalpus, retrolateral view. Scale bars = 0.10 mm.
Data from: Ecological trait divergence over evolutionary time underlies the origin and maintenance of tropical spider diversity
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Tropical niche conservatism explains the Eocene migration from India to Southeast Asia in Ochyroceratid spiders
<p><span>Biological migrations between India and Southeast (SE) Asia provide an ideal system for exploring the effects of geology and climate on species ranges. Geologists have confirmed that the direct collision between India and Eurasia occurred in the Early Eocene, but most migrations occurred between the Indian subcontinent and SE Asia rather than the former and the southern margin of Eurasia. To explain this seemingly paradoxical disconnect between the routes of plate movement and biological migration, we studied the evolutionary history of the tropical spider family Ochyroceratidae based on 101 globally distributed species. We infer a robust dated phylogeny using both transcriptomic data and a dataset of classical markers and relate these to biogeographic and climatic analyses. Our results indicate that the monophyly of Ochyroceratidae is strongly supported, and the divergence times suggest a Cretaceous Gondwanan origin of the family. Reconstructed biogeographic histories support a dispersal event from the Indian subcontinent to islands of SE Asia 55–38 million years ago. Climatic analyses and the fossil record reveal that ochyroceratids are characterized by a high degree of tropical niche conservatism, and that the ancestor of the Indian and SE Asian clades originated in very warm, wet environments. Early Eocene tropical, perhumid climates in India and SE Asia may have facilitated ochyroceratid migration, whereas the dry or seasonal climate extending from the eastern coast of China to Central Asia may have acted as a barrier, preventing dispersal. Our analyses suggest that climate plays a more important role than geology in biological migration from the Indian subcontinent to SE Asia, providing new insights into the Indian–Asian biogeographic link.</span></p>
Figure 5. A in Defensive behaviour of a moth (Crambidae: Eoophyla sp.) that mimics jumping spiders (Araneae: Salticidae) in tropical India
Figure 5. A, Composite image showing four successive positions (1-4) occupied by a female Plexippus paykulli on a vertical wall, near a stationary Eoophyla that was displaying its hindwings. Initially (1-2) this spider fed on a captured moth, but about 2 minutes later (3-4) it approached the Eoophyla from above. B, Detail of inset from (a).
Figure 3. A in Defensive behaviour of a moth (Crambidae: Eoophyla sp.) that mimics jumping spiders (Araneae: Salticidae) in tropical India
Figure 3. A spider' view of a Eoophyla with elevated hindwings, from the front (A), and from a more lateral position (B-C). BC, Note that, with more direct illumination (C), reflection in the "eyes" of the salticid image on the hindwing can be seen.
Figure 2 in Defensive behaviour of a moth (Crambidae: Eoophyla sp.) that mimics jumping spiders (Araneae: Salticidae) in tropical India
Figure 2. Eoophyla before (A) and after (B) raising its hindwings to display the image of a salticid in two directions, on a vertical wall.
Figure 6. Adult male Viciria pavesii, Singapore. 4 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 6. Adult male Viciria pavesii, Singapore. 4, Note the anterolateral extension of each paturon, far beyond the articulation of the respective fang. Photo credits: 1-3, © Nicky Bay, used with permission; 4-6, © Yongi Ng, used with permission.
Figure 2 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 2. Photographs of a male (1-4) and a female (5-7) Viciria praemandibularis from Mulu National Park, Sarawak (Maddison 2022). 3-4, Lateral (3) and ventral (4) views of left pedipalp of preserved specimen. 7, Ventral view of epigynum of preserved specimen. Compare with drawings of the V. pavesii lectotypes in Figure 3:4-5. Photographs © W. Maddison, used under a CC-BY 3.0 license.
Figure 1 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 1. Localties reported for Viciria pavesii (1-2) and V. praemandibularis (all other records). Numbered localities correspond to records listed in Table 1. Small dots represent additional records posted as photographs on iNaturalist (2022). One iNaturalist record (from the Philippines) that clearly did not represent this species in not shown. The distribution of these Viciria is Sundan, with some representation, including the type for V. pavesii (1) in Wallacea.
Figure 9 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 9. Female Viciria pavesii with their respective broods on the underside of leaves, Singapore. 1-3, Females with broods that have just hatched. 4-6, Females with broods that are beginning to move beyond the nest. Photographs © Nicky Bay, used with permission.
Figure 5 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 5. Adult male (1-4) and adult female (5-6) Viciria pavesii photographed in Singapore. Pigmentation of legs II
Figure 8 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 8. Four different female Viciria pavesii, tending their broods on the underside of a leaf. 1-3, Recently deposited eggs held by a thin silk mesh, with the female in a characteristic guardian position. 4, Female guarding a brood that is beginning to hatch. Photo credits (all modified): 1, © Albert Kang; 2, © Lim Hong Yao; 3, © Cheong Weei Gan; 4, © Goh C. Y. Richard; all posted on iNaturalist, used under a CC BY-NC 4.0 license.
Figure 7. Adult male Viciria pavesii. 1 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 7. Adult male Viciria pavesii. 1, Note the crest behind the posterior eye row. This character is variable. 2, Note
Figure 3 in Tropical Asian jumping spiders of the genus Viciria (Araneae: Salticidae: Viciriini)
Figure 3. Published figures depicting Viciria praemandibularis (1-3) and V. pavesii (4-5), with attribution. No drawings are available for the type of V. praemandibularis, and (3) represents a male specimen that is similar to V. pavesii. The lateral extension of the paturon of the male, beyond the articulation of the fang (2-e, 5-fig. 9) is a distinctive character of both "species," and the description of the female V. pavesii clearly agrees with the (now) well-known, but undescribed, female of V. praemandibularis. Figures 3-5 © J. Pro;szyn;ski, used with permission, with modified captions.
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Allen Brain Atlas
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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.