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442 results for “desert species”
Cover and frequency of biological soil crust community types, moss species, vascular plants, and abiotic land surface features, on gypsum & non-gypsum soils from the Chihuahuan and Mojave Deserts in 2023
This dataset contains raw and calculated percent cover and frequency data for biological soil crust (hereafter biocrust) functional groups, vascular plant functional groups, and abiotic land surface features on and off gypsum soils in the northern Chihuahuan and eastern Mojave Deserts. Abundance data were obtained from 20 study sites total, 10 located on soils derived from gypsum parent material and 10 located on soils derived from non-gypsum parent materials. Sites were grouped into 10 pairs, in which every gypsum site was partnered with a non-gypsum site located in the same region. Apart from soil type, partnered-site characteristics (topography, climate, elevation, slope, aspect, and presence of biocrusts) were held relatively constant. At each site, cover and frequency assessments were made using the line-point intercept method (LPI) and frequency quadrats (1.0 m^2), respectively. Biocrust functional groups included the following crusts: lichen, moss, incipient algal, light algal, dark algal, unknown photosynthetic crust, and vagrant cyanobacteria. Vascular plant categories included: perennial forbs, perennial graminoids, annual forbs, annual graminoids, subshrub, shrub, Yucca, and cacti. Abiotic land surface features included: woody litter, herbaceous litter, bare soil, rock, bedrock, and animal feces. Moss crusts identified within cover and frequency analyses were sampled, and classified to species level via microscopy. The resulting percent cover and frequency data was used to understand differences in biocrust and moss species abundance and diversity on and off gypsum soils; furthermore, how biocrust and moss species abundance was associated with the measured environmental variables. Soil physical and chemical data from this study can be accessed at knb-lter-jrn.210616002. This study and dataset are complete.
2003 Prescribed Burn Effect on Chihuahuan Desert Grasses and Shrubs at the Sevilleta National Wildlife Refuge, New Mexico: Species Composition Study (2004-2018)
Disturbance from fire can affect the abundance and distribution of shrubs and grasses in arid ecosystems. In particular, fire may increase grass and forb production while hindering shrub encroachment. Therefore, prescribed fires are a common management tool for maintaining grassland habitats in the southwest. However, Bouteloua eriopoda (black grama), a dominant species in Chihuahuan Desert grassland, is highly susceptible to fire resulting in death followed by slow recovery rates. A prescribed fire on the Sevilleta National Wildlife refuge in central New Mexico in 2003 provided the opportunity to study the effects of infrequent fires on vegetation in this region. This study was conducted along a transition zone where creosote bushes (Larrea tridentata) are encroaching on a black grama grassland. Before and after the fire, above ground plant productivity and composition were monitored from 2003 to present. Following the prescribed fire, there were fewer individual grass clumps and less above ground grass cover in burned areas compared to unburned areas. This decrease in productivity was primarily from a loss of B. eriopoda. Specifically, B. eriopoda density and cover were significantly lower following the fire with a slow recovery rate in the five years following the fire. Other grasses showed no such adverse response to burning. Data were collected from 2004-2013 and 2018. Data were not collected for 2014-2017.
Fig. 3 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 3. Loxosceles diaguita sp. nov. A–B. ♂, holotype (MNHNCL 7946). A. Habitus, dorsal. B. Carapace, dorsal. C–D. ♀, paratype (MACN-Ar 30185). C. Carapace, dorsal. D. Left palp, prolateral.
Fig. 2. Loxosceles coquimbo Gertsch, 1967 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 2. Loxosceles coquimbo Gertsch, 1967, ♂, Los Choros, La Higuera, Elqui (LEULS). A. Palp, prolateral. B. Bulb, prolateral.
Fig. 8 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 8. Spermathecae, dorsal view (except D, ventral), cleared. A. Loxosceles surca Gertsch, 1967, ♀, Zapahuira, Parinacota, Tarapacá (AMNH). B. Loxosceles coquimbo Gertsch, 1967, ♀, Lomas de Peñuelas, Coquimbo (AMNH). C. Loxosceles pallalla sp. nov., ♀, 6 km S of Cruz Grande, Elqui (AMNH). D. Loxosceles diaguita sp. nov., ♀, paratype (MACN-Ar 30185). E. Loxosceles vallenar sp. nov., ♀, holotype (AMNH). Scale bars = 0.5 mm.
Fig. 9 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 9. Scanning electron microscopy, ♂ metatarsus I. A. Loxosceles laeta (Nicolet, 1849), ♂, Antofagasta, Antofagasta (IBSP 4663). B. Loxosceles surca Gertsch, 1967, ♂, Parinacota, 24 km S of Zapahuira (AMNH). C–D. Loxosceles diaguita sp. nov., ♂, Taltal, 4 km E of Paposo, Antofagasta (AMNH).
Fig. 1. Male palps, prolateral. A in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 1. Male palps, prolateral. A. Loxosceles laeta (Nicolet, 1849), ♂, Antofagasta, Antofagasta (IBSP 4663). B–D. Loxosceles surca Gertsch, 1967. B. ♂, Chusmiza, Huara, Tamarugal, Tarapacá (AMNH). C. Same, bulb, prolateral. D. Same, palp, prolateral. Scale bars A–B = 1 mm.
Fig. 7 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 7. Loxosceles pallalla sp. nov., ♂, holotype, La Herradura, Elqui, IV Región de Coquimbo, Chile (AMNH). A. Palp, prolateral. B. Palp, retrolateral. C. Bulb, prolateral. D. Bulb, subventral.
Fig. 6 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 6. Loxosceles diaguita sp. nov., ♂, Taltal, 4 km E of Paposo, Antofagasta (AMNH), SEM. A–D. Left palp. A. Prolateral. B. Detail of embolus, prolateral. C. Bulb, retrolateral. D. Cymbium, retrolateral.
Fig. 4 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 4. Loxosceles diaguita sp. nov., ♂, holotype (MNHNCL 7946). A–D. Left palp. A. Prolateral. B. Dorsal. C. Bulb, prolateral. D. Bulb, retrolateral.
Fig. 10 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 10. Geographic distribution records of species of Loxosceles in Chile. Records of L. laeta (Nicolet, 1849) are based on the material examined in this study and on Gertsch (1967). Stars under L. surca Gertsch, 1967 and L. coquimbo Gertsch, 1967 are records from Gertsch (1967).
Fig. 5 in On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts
Fig. 5. Loxosceles diaguita sp. nov., ♀, paratype (MACN-Ar 30185). A–B. Spermathecae. A. Dorsal. B. Ventral.
Fig. 2 in The great gerbil (RhombomYS opimUS) as a host for tick species in Gurbantunggut Desert
Fig. 2 Maximum likelihood phylogenic tree inferred from the COI sequences of the ticks (A Ixodes acuminatus, B Hyalomma asiaticum, Rhipicephalus turanicus and Haemaphysalis erinacei, C Ornithodoros tartakovskyi) sampled from wildlife and pastured sheep in Gurbantunggut Desert, northwestern China. The new sequences provided by the present study are indicated by black circle/diamond/inverted triangle/square/triangle
Figure 4 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 4. Hellinsia haverineni Ustjuzhanin, Kovtunovich & Pototski sp. nov. Adult, male, holotype.
Figure 3 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 3. Lioptilodes karinupponeni Ustjuzhanin, Kovtunovich & Pototski sp. nov. Female genitalia, paratype (IZBE gen.pr. Nr. 3042359).
Figure 6 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 6. Type locality. Huasco River valley by Huasco Bajo vill. 31.i.2017 (photo by R. Haverinen).
Figure 2 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 2. Lioptilodes karinupponeni Ustjuzhanin, Kovtunovich & Pototski sp. nov. Male genitalia, holotype (IZBE gen.pr. Nr. 3042358).
Figure 1 in Two new species of plume moths (Lepidoptera: Pterophoridae) from Atacama Desert (Chile)
Figure 1. Lioptilodes karinupponeni Ustjuzhanin, Kovtunovich & Pototski sp. nov. Adult, male, holotype.
Fig. 9 in Some color in the desert: description of a new species of Liolaemus (Iguania: Liolaemidae) from southern Peru, and its conservation status
Fig. 9. Plot of principal component scores for continuous characters for L. balagueri (yellow stars, n = 12), L. chiribaya (purple circles, n = 10), L. insolitus (red triangles, n = 15), L. nazca (sky blue triangle, n = 7), and L. anqapuka sp. nov. (green squares, n = 7). Eigenvectors, eigenvalues, and percent of variation explained for the first two principal components are summarized in Table 5.
Fig. 7 in Some color in the desert: description of a new species of Liolaemus (Iguania: Liolaemidae) from southern Peru, and its conservation status
Fig. 7. Habitat of Liolaemus anqapuka sp. nov. in (A) dry season and (B) wet season. Photos by A. Quiroz (A), C.S. Abdala (B).
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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)
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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.