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2,644 results for “Jumping spiders”
Ultraconserved element data for phylogenomic analysis of Ghatippus paschima jumping spider (Salticidae, Plexippini, Plexippina)
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Data from: Low temperatures impact species distributions of jumping spiders across a desert elevational cline
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Figure 8 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 8. Ventral view of adult male (1-3) and adult female (4-6) Thyene coccineovittata (Figure 2: sites 1-2). 6, Detail of (5), showing only slight sclerotization of the epigynum when viewed from below.
Figure 21 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 21. Two sequences (1-4, 5-10) showing interactions between a male and female Thyene coccineovittata (Figure 2: sites 1-2). Although a complete courtship sequence was not observed, lateral extension of legs II-III (3- 4) with waving of elevated legs I (5-7) appear to represent important features of the male display.
Figure 11 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 11. Right pedipalp of two adult male Thyene coccineovittata (Figure 2: sites 1-2) in 70% ethanol. These images were flipped horizontally (mirrored) to facilitate direct comparison according to our left pedipalp convention. Thus they represent the appearance of the left pedipalp. 7, This detailed view (inset: arrow) shows the position of the small RTA, just above the many coils of the embolus. This can be difficult to observe.
Figure 5 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 5. Detailed views of the adult male Thyene coccineovittata shown in Figure 4. Orange scales surround the ALE and the top half of each AME. The top of the carapace is mostly covered with flat yellow-white scales, as is the broad middorsal band of the opisthosoma. 1-3, Each anterior paturon of the male is reflective, with a variable cover of flat yellow-white scales, and bears many prominent transverse grooves. 8, The middorsal opisthosomal band is flanked by dark stripes, interrupted by light spots or transverse lines toward the rear. In this individual these dark stripes include many scarlet scales.
Figure 2 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 2. Known distribution of Thyene coccineovittata in Brazil based on our study sites (1-2) and other sites (3-8) where this species has been observed (map imaging by USGS Landsat).
Figure 19 in First report of the African jumping spider Thyene coccineovittata (Araneae: Salticidae: Plexippina) in Brazil
Figure 19. Earlier immature Thyene coccineovittata (Figure 2: site 1). At this stage the basic scale pattern of the adult female is already visible.
Figure 19 in New records and updated distribution of the ant-like jumping spider genus Zuniga Peckham & Peckham, 1892 (Salticidae: Salticinae: Sarindini) in the Neotropics
Figure 19. Known distribution of the genus Zuniga in the Americas.
Figure 12 in First report of the Asian jumping spider Menemerus nigli (Araneae: Salticidae: Chrysillini) in Brazil
Figure 12. Adult female (♀ #1) Menemerus nigli from site 1.2 in Rio de Janeiro, Brazil (FEB 2020).
Figure 16 in First report of the Asian jumping spider Menemerus nigli (Araneae: Salticidae: Chrysillini) in Brazil
Figure 16. Detailed views of adult female Menemerus nigli specimens from Rio de Janeiro in alcohol.
Alternative responses by two species of jumping spiders to unpalatability and toxicity in prey
<p>A key challenge for generalist predators is avoiding toxins in prey. Species-specific strategies range from total avoidance of distasteful (and potentially toxic) prey to the use of physiological mechanisms to metabolize toxins after consumption. We compare two species of jumping spiders, <i>Habronattus trimaculatus</i> and <i>Phidippus regius.</i> Based on several anecdotal observations and other aspects of their biology, we hypothesized <i>a priori </i>that <i>H. trimaculatus</i> would be (1) less willing to feed on unpalatable prey and (2) more susceptible to toxins that are consumed compared with <i>P. regius.</i> In Experiment 1, we presented spiders of both species with size-matched quinine-dipped crickets. Consistent with our hypothesis, all <i>H. trimaculatus</i> attacked and rejected them while all <i>P. regius</i> attacked and consumed them. In Experiments 2 and 3 we assigned spiders of both species to experimental feeding treatments with varying levels of toxicity (using toxic springtails, <i>Folsomia candida</i>) and assessed effects on their growth. Spiders of both species readily fed on the springtails. Collectively, results from these two experiments suggest that springtails have negative effects on both species, but that these effects are stronger in <i>H. trimaculatus</i>. <i>Habronattus </i>has a unique red retinal filter pigment (not found in <i>Phidippus) </i>that likely improves their ability to discriminate reds and oranges. The evolution of this unique visual system may have been driven by their heightened susceptibility to prey toxins, and thus the benefits of avoiding prey that advertise toxins with long-wavelength colors. </p>
FIGURES 1–2. 1 in Over 40 years with jumping spiders: on the 70 birthday of Wanda Wesołowska
FIGURES 1–2. 1 Wanda Wesołowska with Euonymus europaeus L.; 2 Wanda and Tomasz Wesołowscy at the gate to the Białowieża National Park.
FIGURES 18–22 in Description of two new species of the jumping spider genus Pancorius Simon 1902 (Araneae: Salticidae) from Southwest China
FIGURES 18–22. Pancorius wesolowskae sp. nov. 18–20 Left male palp in prolateral (18), ventral (19) and retrolateral views (20); 21 Epigyne, ventral view; 22 Vulva, dorsal view. Scale bars = 0.1 mm.
FIGURE 23 in Description of two new species of the jumping spider genus Pancorius Simon 1902 (Araneae: Salticidae) from Southwest China
FIGURE 23. Map of type localities: circle 1 Pancorius candidus sp. nov. circle 2 P. wesolowskae sp. nov.
FIGURES 14–17 in Description of two new species of the jumping spider genus Pancorius Simon 1902 (Araneae: Salticidae) from Southwest China
FIGURES 14–17. Pancorius wesolowskae sp. nov. 14 Male, dorsal view; 15 Same, ventral view; 16 Female, dorsal view; 17 Same, ventral view). Scale bars = 0.5 mm.
FIGURES 5–9 in Description of two new species of the jumping spider genus Pancorius Simon 1902 (Araneae: Salticidae) from Southwest China
FIGURES 5–9. Pancorius candidus sp. nov. 5–7 Left male palp in prolateral (5), ventral (6) and retrolateral views (7); 8 Epigyne, ventral view; 9 Vulva, dorsal view. Scale bars = 0.1 mm.
FIGURES 1–4 in Description of two new species of the jumping spider genus Pancorius Simon 1902 (Araneae: Salticidae) from Southwest China
FIGURES 1–4. Pancorius candidus sp. nov. 1 Male, dorsal view; 2 Same, ventral view; 3 Female, dorsal view; 4 Same, ventral view). Scale bars = 0.5 mm.
Data from: Aggressive jumping spiders make quicker decisions for preferred prey but not at the cost of accuracy
There has been an increasing interest in consistent interindividual differences in behavior (i.e., personality) in recent years. However, consistent interindividual differences in cognitive styles remain largely unexplored. Individual differences in cognitive styles are hypothesized to be functionally related to differences in personality types. It is assumed that proactive individuals make faster decisions at the expense of accuracy (i.e., the speed–accuracy trade-offs hypothesis). Here, we investigated the relationship between personality and speed–accuracy trade-off using Portia labiata, a specialized spider-eating jumping spider that exhibits excellent cognitive ability. We first established consistent individual differences in aggressiveness and decision-making in P. labiata. We then tested whether individual differences in aggressiveness could predict how fast and accurately P. labiata makes a prey-choice decision (a large vs. a small orb-web spider). We demonstrated that P. labiata exhibited individual differences not only in aggressiveness, but also in the speed of prey-choice decisions but not in the choices. Importantly, we found that aggressiveness was not related to the choice of the prey, but it predicted the speed of prey-choice decision: aggressive individuals were faster to make choices than docile ones but both chose large spiders as preferred prey. This suggests a lack of an association between a speed–accuracy trade-off and variation in personality types of P. labiata.
Data from: Jerzego, a new hisponine jumping spider from Borneo (Araneae: Salticidae)
A new genus and species of hisponine jumping spider from Sarawak, Jerzego corticicola Maddison sp. nov. are described, representing one of the few hisponine jumping spiders known from Asia, and the only whose male is known. Although similar to the primarily-Madagascan genus Hispo in having an elongate and flat body, sequences of 28s and 16sND1 genes indicate that Jerzego is most closely related to Massagris and Tomomingi, a result consistent with morphology. Females of Jerzego and other genera of Hisponinae were found to have an unusual double copulatory duct, which appears to be a synapomorphy of the subfamily. Two species are transferred from Hispo, Jerzego bipartitus (Simon) comb. nov. and Jerzego alboguttatus (Simon) comb. nov. Diagnostic illustrations and photographs of living spiders are provided.
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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.