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1,024 results for “ground spider”
Map 22 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Map 22. Records of Trachycosmus allyn, new species (circles) and T. cockatoo, new species (stars).
Map 21 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Map 21. Records of Trachycosmus sculptilis Simon.
Map 30 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Map 30. Records of Morebilus nipping, new species (squares) and M. diversus (L. Koch) (circles).
Fig. 1. Character matrix for 42 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Fig. 1. Character matrix for 42 genera; see text for character descriptions.
Figs. 53–56. Meedo houstoni Main. 53. Left male palp, ventral view. 54 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Figs. 53–56. Meedo houstoni Main. 53. Left male palp, ventral view. 54. Same, retrolateral view.
Fig. 2. Preferred cladogram for 42 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Fig. 2. Preferred cladogram for 42 genera; see text for discussion.
Map 6 in A Revision Of The Australasian Ground Spiders Of The Families Ammoxenidae, Cithaeronidae, Gallieniellidae, And Trochanteriidae (Araneae: Gnaphosoidea)
Map 6. Records of Meedo booti, new species (squares) and M. gympie, new species (circles).
Plant-animal interactions between carnivorous plants, sheet-web spiders, and ground-running spiders as guild predators in a wet meadow community
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Data from: Ten-year responses of ground-dwelling spiders to retention harvest in the boreal forest
The Ecosystem Management Emulating Natural Disturbances (EMEND) project tests the hypothesis that varying levels of green tree retention maintain and retain forest biodiversity better than conventional clear-cutting. We studied epigaeic spiders to assess biodiversity changes two, five and ten years following a range of partial retention harvests (clear-cut, 10-75% retention) and unharvested controls in four boreal mixedwood cover-types. A total of 56, 371 adult spiders representing 220 species was collected using pitfall traps. Lasting effects on forest structure were proportional to harvest intensity. These changes strongly influenced spider richness, abundance and species composition, as well as assemblage recovery. Distinctive assemblages were associated with disturbance level, especially with partial harvests (≤50% retention), and these were dominated by open-habitat species even ten years after harvest. Assemblages were more similar to those of controls in the highest (75%) retention treatment, but significant recovery toward the structure of pre-disturbance assemblages was not detected for any prescription in any cover-type. Although early responses to retention harvest suggested positive effects on spider assemblages, these are better explained as lag effects after harvest because assemblages were less similar to those of unharvested controls five years post-harvest, and only minor recovery was observed ten years following harvest. Retention of forest biodiversity decreased over time, especially in conifer stands and the lower (10-50%) retention treatments. Overall, retention harvests retained biodiversity and promoted landscape heterogeneity somewhat better than clear-cutting; however, there was a clear gradient of response and no retention 'threshold' for conservation can be recommended on the basis of our data. Furthermore, results suggest that retention harvest prescriptions should be adjusted for cover-type. We show that low retention ameliorated impacts in broadleaved forests characteristic of earlier stages in mixedwood succession, but only higher retention was associated with less impact in successionally older conifer forests. Although these short-term responses (10 years) of spider assemblages support use of retention harvests, understanding the true conservation merit of these practices, relative to conventional approaches, requires evaluation over longer time scales, with work more focused on recovery of biodiversity than on its preservation after harvest.
Data from: Small- to large-scale patterns of ground-dwelling spider (Araneae) diversity across northern Canada
We examined how Arctic spider (Araneae) biodiversity is distributed at multiple spatial scales in Northern Canada using a standardized hierarchical sampling design. We investigated which drivers, environmental or spatial, influence the patterns observed. Spatial patterns of species richness and composition of Arctic spiders were assessed in 12 sites located in Arctic, Subarctic, and North-Boreal regions, across 30 degrees of latitude and 80 degrees of longitude. Variation of diversity was partitioned in relation to multiple environmental and spatial drivers of diversity patterns. Over 23, 000 adult spiders, representing 306 species in 14 families, were collected in Northern Canada, with 107 species (35% of the total species collected) representing new Territorial or Provincial records. Spider diversity was structured at the regional scale across ecoclimatic regions but not with latitude. Longitudinal patterns of spider diversity across Canada may be explained by post-glacial dispersal. At local scales, diversity was non-randomly distributed, and possibly limited by biotic interactions. We recommend the use of ecoclimatic regions as a framework for conservation of biodiversity in Northern Canada and spiders as useful bioindicators which can help us understand the effects of climate change across ecoclimatic regions of northern Canada.
FIGURES 91, 92. Zelotes paradderet n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 91, 92. Zelotes paradderet n. sp. ♂, holotype, left palpus. 91.Ventral view. 92. Retrolateral view (L = lamina).
FIGURES 87, 88. Zelotes sumchi Levy, 1998 in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 87, 88. Zelotes sumchi Levy, 1998, Ψ. 87. Epigynum, ventral view. 88. Spermathecae, dorsal (inner) view.
FIGURES 81, 82. Zelotes golanensis n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 81, 82. Zelotes golanensis n. sp. Ψ, holotype. 81. Epigynum, ventral view. 82. Spermathecae, dorsal (inner) view.
FIGURES 83, 84. Zelotes shaked Levy, 1998 in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 83, 84. Zelotes shaked Levy, 1998, Ψ. 83. Epigynum, ventral view. 84. Spermathecae, dorsal (inner) view.
FIGURES 79, 80. Zelotes lehavim n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 79, 80. Zelotes lehavim n. sp. ♂, holotype, left palpus. 79. Mesal, partly ventral view. 80. Ventral, partly lateral view.
FIGURES 77, 78. Zelotes geshur n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 77, 78. Zelotes geshur n. sp. ♂, holotype, left palpus. 77.Ventral view. 78. Retrolateral view.
FIGURES 73, 74. Zelotes harmeron n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 73, 74. Zelotes harmeron n. sp. ♂, holotype, left palpus. 73.Ventral view. 74. Retrolateral view.
FIGURES 75, 76. Zelotes harmeron n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 75, 76. Zelotes harmeron n. sp. Ψ, from Rodos. 75. Epigynum, ventral view.76. Spermathecae, dorsal (inner) view.
FIGURES 69, 70. Zelotes baram n in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 69, 70. Zelotes baram n. sp. Ψ. 69. Epigynum, ventral view. 70. Spermathecae, dorsal (inner) view.
FIGURES 71, 72. Zelotes meronensis Levy, 1998 in New ground-spider genera and species with annexed checklist of the Gnaphosidae (Araneae) of Israel
FIGURES 71, 72. Zelotes meronensis Levy, 1998, Ψ. 71. Epigynum, ventral view. 72. Spermathecae, dorsal (inner) 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.