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3,370 results for “jumping”
Figures 73-74 in Four new species of jumping spider (Araneae: Salticidae: Aelurillinae) with the description of a new genus from South India
Figures 73-74. Stenaelurillus sarojinae (♂ #2, Paratype NCBS-AL055). 73, Dorsal view. 74. Ventral view. Scale bars 1 mm.
Figures 53-56 in Four new species of jumping spider (Araneae: Salticidae: Aelurillinae) with the description of a new genus from South India
Figures 53-56. Left male palp, Phlegra prasanna sp.nov. 53, Ventral view. 54, Retrolateral view. 55, Ventral view. 56, Retrolateral view. Scale bars 0.1 mm.
Figures 57-61. Male Stenaelurillus sarojinae. 57 in Four new species of jumping spider (Araneae: Salticidae: Aelurillinae) with the description of a new genus from South India
Figures 57-61. Male Stenaelurillus sarojinae. 57, Front view (♂ #1). 58, Lateral view (♂ #2). 59, Dorsal view (♂ #2). 60-61, Dorsal view (♂ #1).
Figures 22-25 in Four new species of jumping spider (Araneae: Salticidae: Aelurillinae) with the description of a new genus from South India
Figures 22-25. Left male palp, Mashonarus davidi sp.nov. 22, Ventral view. 23, Retrolateral view. 24, Ventral view. 25, Retrolateral view. Scale bars 0.1 mm.
Figures 1―5 in First record of the jumping spider Eustiromastix falcatus (Araneae: Salticidae) in Brazil
Figures 1―5. Eustiromastix falcatus Galiano male from Monte Alegre, Pará, Brazil. 1, Left palp proventral view. 2, Left palp retrolateral view. 3, Left palp ventral view. 4, Habitus dorsal view. 5, Habitus ventral view. Scale, figs. 1-3: 0.5 mm, figs. 4-5: 1.0 mm.
Figure 3 in Population dynamics, age structure and sex ratio of the bromeliad-dwelling jumping spider, Psecas chapoda (Salticidae)
Figure 3. Climatic data from Itauna farm (5 km from the study site), from May 1998 to April 2000.
Figure 9 in Complex display behaviour during the intraspecific interactions of myrmecomorphic jumping spiders (Araneae, Salticidae)
Figure 9. Myrmarachne bakeri female (facing to left) posturing (erect legs in Position 2).
Figure 5 in Complex display behaviour during the intraspecific interactions of myrmecomorphic jumping spiders (Araneae, Salticidae)
Figure 5. Myrmarachne assimilis male (on right) opening door to nest. Palps arched.
Figure 17 in Jumping plant-lice of the family Phacopteronidae (Hemiptera: Psylloidea) from Cameroon
Figure 17. Pseudophacopteron electum, fifth instar larva: left dorsal and right ventral surfaces.
Figure 14 in Jumping plant-lice of the family Phacopteronidae (Hemiptera: Psylloidea) from Cameroon
Figure 14. Pseudophacopteron cuniculus, fifth instar larva: left dorsal and right ventral surfaces.
Figure 18 in Jumping plant-lice of the family Phacopteronidae (Hemiptera: Psylloidea) from Cameroon
Figure 18. Pseudophacopteron morion, fifth instar larva: left dorsal and right ventral surfaces.
FIG. 1 in Jumping spiders (Arachnida, Araneae, Salticidae) from the Nimba Mountains in Guinea
FIG. 1. — Location of the Nimba Mountains.
MAP 20 in Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae)
MAP 20. Distribution map of Orchestina MI038.
MAP 17 in Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae)
MAP 17. Distribution map of Orchestina MI024, MI025, and MI036.
MAP 14 in Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae)
MAP 14. Distribution map of Orchestina tzantza.
MAP 11 in Taxonomic Revision Of The Jumping Goblin Spiders Of The Genus Orchestina Simon, 1882, In The Americas (Araneae: Oonopidae)
MAP 11. Distribution map of Orchestina goblin.
Figure 6 in Taxonomic revision and phylogenetic hypothesis for the jumping spider subfamily Ballinae (Araneae, Salticidae)
Figure 6. Baviola braueri (MRAC 143.138). Epigynum, ventral view. Scale bar = 0.2 mm.
Evolutionary allometry of sexual dimorphism of jumping performance in anurans
<p>Sexual dimorphism is a common feature in animals, yet the degree of sexual dimorphism is not constant across taxa. Sometimes the magnitude of sexual dimorphism varies systematically with body size, resulting in evolutionary allometry of sexual dimorphism. While such patterns are commonly investigated for traits such as overall size, allometric variation in sexual dimorphism of other traits remains underexplored. Here, we characterize the evolutionary allometry of sexual dimorphism in a functional phenotypic trait (jumping performance) in anurans. Using morphology and anatomical approximations of jumping performance across 146 species, we test for evidence of the correlated selection model of sexual dimorphism evolution. We analyze patterns of evolutionary allometry of sexual dimorphism in key phenotypic traits, including: body size (snout-vent length and mass), relative leg length, relative leg muscle volume, mass-specific peak jumping energy, and peak jumping velocity. We find that as previously reported, sexual size dimorphism scales isometrically between species and is independent of sexual dimorphism in jumping performance. Notably, however, we found significant trends in the evolutionary allometry of sexual dimorphism in relative limb length, and in two components of jumping performance. Additionally, we found greater rates of evolution for females versus males in relative limb length, but not jumping performance. We also observed that the allometric trends in limb length dimorphism were related to performance allometry. Sexual dimorphism in jumping performance increased in species with high performance while females in high performance species displayed increased relative limb length. Thus, we hypothesize that selection acting on functional performance explains allometric patterns of sexual dimorphism in morphology. We discuss biological implications of our findings in relation to natural and sexual selection. This study highlights the types of insights one may gain by studying the allometry of sexual dimorphism from a functional perspective to learn about both patterns and processes in evolution.</p>
Static visual predator recognition in jumping spiders
<p>Visually detecting, recognizing, and responding appropriately to predators increases survival. Failure to detect a predator or long decision times carry high and potentially fatal costs. Consequently, many animals show general anti-predatory responses toward threatening stimuli, e.g., looming objects. However, in the context of lurking or stalking ambush predators, visual recognition is based on static visual cues, making this task computationally demanding.</p> <p>Jumping spiders (Salticidae) have superb vision and are excellent ambush predators but they can equally fall prey to other jumping spiders. In a hierarchical decision-making setup, we tested whether the common zebra jumping spider (<em>Salticus scenicus</em>) can visually recognize stationary predators. We measured the spiders’ behavioural responses towards predator (naturally co-occurring, non-co-occurring and artificial) and non-predator objects as well as towards objects with modified features.</p> <p>Our experiments show that salticids demonstrate a robust, fast, and repeatable “freeze and retreat” behaviour when presented with stationary predators, but not similarly sized non-predator objects. Anti-predator responses were triggered by co-occurring and non-co-occurring salticid predators, as well as by 3D-printed salticid models (based on micro-CT scans), suggesting a generalized predator detection/classification. Using modified 3D-printed models, we found evidence that eyes act as an important cue. However, eyes alone did not explain the responses, suggesting that underlying processes rely on multiple rather than single features.</p> <p>To address the role of learning and memory, we tested newly emerged spiderlings and found the same behavioural responses towards predator objects suggesting an innate response. The ability of jumping spiders to innately recognize a non-moving threat is surprising in terms of underlying cognitive processes and the evolution thereof.</p> <p>Escaping from a predator before an attack has been launched likely carries sufficient selective benefits. From a cognitive perspective, the overlap of static visual characteristics between salticid predators, prey, and conspecifics invites further questions considering the mechanisms of such nuanced visual discrimination and categorization in animals with complex vision but relatively small nervous systems.</p>
Figure 64. Naphrys. 1, Male N in Jumping spider scales (Araneae: Salticidae)
Figure 64. Naphrys. 1, Male N. pulex from Greenville County, South Carolina, 12 MAY 2022. 2, Female N. pulex from Greenville County, South Carolina, 4 JUN 2021. 3-4, Scales from carapace (3) and opisthosoma (4) of a female N. pulex. 5-8, Camera lucida drawings of scales from the opisthosoma of three Naphrys species. Attribution and ©: 3-4, Dimitri V. Logunov.
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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.