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58 results for “Chrysomela”
Figure 20 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 20. Courtship display by a male M. chrysomelas from Cape Le Grand near Esperance, WA. Selected, sequential frames from a 25 fps video are shown. Movement of the legs (bilateral waving) and pedipalps (raising and lowering), limited rotation of the elevated fan, and side-stepping are highlighted with arrows. There was little independent movement of the fan.
Figure 18 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 18. Four different male Maratus nigromaculatus (1, 2-4, 5, 6-7), recently rediscovered in the vicinity of Brisbane. Keyserling (1883) also described this spider from 'Rockhampton', but no other localities are known. The spiders shown here (and in Figures 21-23) were either collected at Nudgee Beach Reserve in Brisbane, or reared from eggs produced by females collected at that site. This appears to be a coastal species, living amongst grass or pig face plants (Carpobrotus) along the borders of estuaries.
Figure 17 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 17. Courtship display by two male Maratus chrysomelas from Western Australia. The opisthosoma of the male from Cape Le Grand near Esperance (5-7) on the southwestern coast was wider than that of the male from Warwick Open Reserve near Perth (1-4; 31.837 S, 115.8163 E). Note the expansion of the elevated and flattened opisthosoma to reveal a fringe that is much narrower than that of male M. nigromaculatus (Figure 18). As in the latter species, the bright white pedipalps were held apart to reveal the dark, glabrous chelicerae during display.
Figure 16 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 16. Distribution of Maratus fimbriatus in New South Wales. 2, Detail of inset in (1). See Table 1 for description of numbered localities. Background images courtesy of the NASA Visible Earth project.
Figure 15 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 15. Views of the type locality near Nyngan, New South Wales, featuring a riverine plain woodland (NSW 2016c).
Figure 19 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 19. Fourteen different male Maratus photographed in their natural habitat, a grassy patch in Emerald, Queensland. Several males in this group (1-2) look like typical M. chrysomelas, while others exhibit the wider fringes and dark spots or (at the posterior) dashes on the dorsal plate characteristic of M. nigromaculatus, or something intermediate between the two species. This may represent gene introgression from that closely-related species into a nearby population of M. chrysomelas. Photographs copyright © Laurence Sanders, used with permission.
Figure 23. Male M in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 23. Male M. nigromaculatus displaying in place directly in front of a female at a distance of ~1 cm. Consecutive frames from a 25 fps video are shown. Some bilateral waving of legs I (5-6), and very limited up and down movement of the pedipalps (38) can be seen. The main movement was side-to-side rotation of the elevated and expanded fan cycling at a rate of ~2/s.
Figure 13 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 13. Photographs of courtship display by the holotype (1-3) and paratype (4-9) male Maratus fimbriatus. 7-8, Note the distinct separation of the 'pom pom' distal pedipalps from the dark, glabrous proximal pedipalps and chelicerae. The anterior surface of femora I is glabrous and light brown or dark olive in colour dorsally.
Figure 9 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 9. Frames from video (25 fps) recordings of male-female interaction in Maratus fimbriatus. 1-3, Sequential frames showing a female raise her legs I during a male approach (2), and then return to a less defensive position as the male backed off (3). Subsequently this female jumped at the male. 4, This female (at left) also watched and then jumped at the male.
Figure 11 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 11. Display by a male M. fimbriatus while side-stepping in front of a female (sequential 25 fps video). Arrows indicate direction of stepping, movement of the fan, and (15-17) limited movement of the pedipalps relative to the previous frame.
Figure 8. Three sequential photographs showing a in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 8. Three sequential photographs showing a male Maratus fimbriatus moving from side to side and approaching an attentive female (out of focus, at left). This and subsequent videos and photographs of male-female interaction were recorded in the laboratory in a naturalistic setting.
Figure 14 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 14. More photographs of courtship display by the paratype (♂ #2) male Maratus fimbriatus. 1-3, From the side, the anterior orientation of the partly extended fringe can be seen clearly. 8-9, In nature, reflections off of the shiny black posterior portion of the dorsal plate may appear as a very bright pair of vertical lines, contributing to the visual effect of the vertical white stripes of the fan.
Figure 7 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 7. Views of female Maratus fimbriatus in ethanol. The epigynum is figured for two female specimens from the Australian Museum (8, 9), as well as the two paratype females (10-12). The smaller pair of posterior spermathecae in each example is somewhat separate from the large anterior (toward the top as shown here) 'windows' (fenestrae or fossae) of the epigynum. Prominent ducts of variable sclerotization proceed toward the anterior from these spermathecae.
Figure 6 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 6. Views of the two female types (1-8, 9-13) for Maratus fimbriatus. These have a fairly uniform 'salt and pepper' colouration. On the anterodorsal midline is a black figure in the shape of a two-headed arrow, and behind this on either side is a lighter coloured triangular spot (9). These may assist in the field identification of this species.
Figure 2 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 2. Dorsal opisthosoma of 15 male Maratus fimbriatus from the collection of the Australian Museum, Sydney. The catalog number of each specimen is shown at the upper right of each photograph (Table 1). The width and distance between the two white stripes varies. In some specimens these stripes converge to either the front (e.g., 11) or the rear (e.g., 14); in other examples (e.g., 1) they are nearly parallel. In most cases (e.g., 13, arrows) a fine posterior-lateral notch interrupts each stripe. This feature may also be observed in the male types (Figure 1).
Figure 4 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 4. Male types for Maratus fimbriatus (1-6, 7-10) in ethanol. In (6), reflections on the posterior dorsal plate appear to extend the two stripes of the dorsal opisthosoma toward the rear.
Figure 12 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 12. Display by a stationary (not stepping) male M. fimbriatus directly in front of a female (sequential 25 fps video). The fan was rotated from side-to-side (~2/s cycles), and the pedipalps were alternately moved apart and then brought together.
Figure 1 in Maratus fimbriatus, a new peacock spider from the Darling Riverine Plains of New South Wales, with a review of the Maratus chrysomelas group (Araneae: Salticidae: Euophryini)
Figure 1. Views of holotype (1-6) and paratype (7-12) male Maratus fimbriatus. When retracted, the fringes join to form a sharp white tip at the end of the opisthosoma (10). When expanded during courtship display (11, 12), the light blue, iridescent colour of these fringes is revealed to the female.
Santa Barbara Coastal site, station Arroyo Burro Reef, Santa Barbara Channel, study of animal density of Sebastes chrysomelas in units of numberPerMeterSquared on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Santa Barbara Coastal (SBC) contains animal density of Sebastes chrysomelas measurements in numberPerMeterSquared units and were aggregated to a yearly timescale.
Santa Barbara Coastal site, station Arroyo Quemado Reef, Santa Barbara Channel, study of animal density of Sebastes chrysomelas in units of numberPerMeterSquared on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Santa Barbara Coastal (SBC) contains animal density of Sebastes chrysomelas measurements in numberPerMeterSquared units and were aggregated to a yearly timescale.
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