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87 results for “Sonoran desert”
FIGURE 1 in Volvopluteus canalipes comb. nov. (Pluteaceae) from the Sonoran Desert of Mexico
FIGURE 1. Phylogenetic tree from the nuc rDNA ITS-LSU analysis by Maximum Likelihood of members of the Pluteaceae. Bootstrap scores (only values ≥ 70) / Bayesian Posterior Probabilities (only values ≥ 0.90) are indicated in the branches.
FIG. 3 in Feral Burros and Other Influences on Desert Tortoise Presence in the Western Sonoran Desert
FIG. 3.—Predictive surface for probability of presence of Agassiz̕s Desert Tortoises (Gopherus agassizii) in the Chemehuevi Valley, Sonoran Desert, California, USA. The probability of tortoise presence (based on all sign: live and dead tortoises, burrows, scats, drinking sites, and tracks) was derived from model averages for each of the 200 1-ha plots surveyed during 2009.
FIG. 2 in Feral Burros and Other Influences on Desert Tortoise Presence in the Western Sonoran Desert
FIG. 2.—Distribution of Brittlebush (Encelia farinosa), Rhatany (Krameria erecta, Krameria bicolor), and White Bursage (Ambrosia dumosa) vegetation associations in the study area in the Chemehuevi Valley, Sonoran Desert, California, USA.
FIG. 4 in Feral Burros and Other Influences on Desert Tortoise Presence in the Western Sonoran Desert
FIG. 4.—Path diagram for Spearman correlations (P <0.05, j rj> 0.4) between anthropogenic variables in habitat for Agassiz̕s Desert Tortoises (Gopherus agassizii) in the Chemehuevi Valley, Sonoran Desert, California, USA. Variables were rank transformed. Vegetation association was coded as a categorical variable for variable importance and as an ordinal variable in order of increasing mean elevation (1 ¼ White Bursage [Ambrosia dumosa], 2 ¼ Rhatany [Krameria erecta, Krameria bicolor], and 3 ¼ Brittlebush [Encelia farinosa]) for rank correlation. Wash ¼ Chemehuevi Wash; river ¼ Colorado River; and road ¼ paved and dirt roads. Solid, bold dark arrows show positive relationships and bold dotted arrows display negative relationships. Variables with similar subjects (e.g., burro scat, burro trails) were grouped together with solid or dotted lines. Variables grouped with fine lines either had one or no variables with correlations of significance (P <0.05, j rj> 0.4). Individual variables with fine lines had low correlations.
Data from: Shaping species with ephemeral boundaries: the distribution and genetic structure of the desert tortoise (Gopherus morafkai) in the Sonoran Desert region
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Data from: Ecological co-associations influence species’ responses to past climatic change: an example from a Sonoran Desert bark beetle
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Data for: Human food use increases plant geographic ranges in the Sonoran Desert
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How surface rock cover affects water and nutrient availability of Sonoran Desert annual plants -- Honors Thesis
Water and nutrient availability are the primary and secondary drivers of net primary productivity (NPP) in arid ecosystems. Although precipitation regulates water inputs, soil properties influence water availability for plant growth. Aridland soils are often covered with surface rocks, which can increase or decrease water availability by modifying evaporation, infiltration, light levels, and temperature. Due to the complexity of these direct and indirect mechanisms, the relationship between rock cover and NPP is not well understood. In this research we explore the relationship between rock cover, soil nutrient availability, and aboveground growth of desert annual plants over four years across a long-term nutrient enrichment experiment in the Sonoran Desert. We surveyed surface rock cover at fifteen sites in central Arizona that have been fertilized with nitrogen (N) and phosphorus (P), alone and in combination, for seven years. Using ANCOVA, we then explored the relative importance of rock cover, precipitation, and nutrient treatment on peak aboveground biomass of spring herbaceous annual plants that were collected in 2008, 2009, 2010, and 2013. We expected surface rocks to strengthen the positive relationship between precipitation, nutrient additions, and annual plant growth. Precipitation, nutrient additions, and surface rock cover together significantly influence growth of Sonoran Desert annual plants. As expected, nutrients and precipitation were the strongest drivers of annual plant biomass. Plant growth was positively related to N additions across all four years (ANCOVA, p <0.01); P in 2008 and 2010 years (p = 0.01 and 0.005, respectively);and precipitation in three of the four years (p < 0.05). Precipitation was the primary driver of plant biomass in the two driest years, 2009 and 2013 (partial eta2 = 0.51 and 0.52, respectively). Gravel (2-64 mm diameter) was only rock size class that was significantly related to annual plant biomass. Contrary to our expecta
Estimating social-ecological resilience: fire management futures in the Sonoran Desert
Resilience quantifies the ability of a system to remain in or return to its current state following disturbance. Due to inconsistent terminology and usage of resilience frameworks, quantitative resilience studies are challenging, and resilience is often treated as an abstract concept rather than a measurable system characteristic. We used a novel, spatially-explicit stakeholder engagement process to quantify social-ecological resilience to fire, in light of modeled social-ecological fire risk, across the non-fire-adapted Sonoran Desert Ecosystem in Arizona, USA. Depending on its severity and the characteristics of the ecosystem, fire as a disturbance has the potential to drive ecological state change. As a result, fire regime change is of increasing concern as global change and management legacies alter the distribution and flammability of fuels. Because management and use decisions impact resources and ecological processes, social and ecological factors must be evaluated together to predict resilience to fire. We found highest fire risk in the central and eastern portions of the study area, where flammable fuels occur with greater density and frequency and managers reported fewer management resources than in other locations. We found lowest fire resilience in the southeastern portion of the study area, where combined ecological and social factors, including abundant fuels, few management resources, and little evidence of past institutional adaptability, indicated that sites were least likely to retain their current characteristics and permit achievement of current management objectives. Analyzing ecological and social characteristics together permits regional managers to predict the effects of changing fire regimes across large, multi-jurisdictional landscapes and to consider where to direct resources. This study brought social and ecological factors together into a common spatial framework to produce vulnerability maps; our methods may inform researchers and managers in other systems facing novel disturbance and spatially-variable resilience.
Figure 5 from: Coelho JR, Hastings JM, Holliday CW (2020) Nesting ecology of the Pacific cicada killer, Sphecius convallis Patton (Hymenoptera, Crabronidae), in the Sonoran Desert. Journal of Hymenoptera Research 80: 177-191. https://doi.org/10.3897/jhr.80.59206
Figure 5 Sphecius convallis feeding on sap at a willow tree, along with several flies. Note the foam in the wound in the tree's bark, probably made by yeast sugar fermentation.
Figure 2 from: Coelho JR, Hastings JM, Holliday CW (2020) Nesting ecology of the Pacific cicada killer, Sphecius convallis Patton (Hymenoptera, Crabronidae), in the Sonoran Desert. Journal of Hymenoptera Research 80: 177-191. https://doi.org/10.3897/jhr.80.59206
Figure 2 Screen tent used in estimating male cicada killer population size. Field of mine tailings in the background.
Distribution. NW Mexico (Sonoran Desert of S Sonora, W Chihuahua, and N Sinaloa). in Heteromyidae
Distribution. NW Mexico (Sonoran Desert of S Sonora, W Chihuahua, and N Sinaloa).
Fig. 21. Carcinops wenzeli morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 21. Carcinops wenzeli morphology. A) Dorsal view, B) Ventral view. Photographs by A. Swanson.
Fig. 14. Carcinops papagoanus morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 14. Carcinops papagoanus morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
Fig. 17. Carcinops rugulus morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 17. Carcinops rugulus morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
Fig. 22 in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 22. COI gene tree constructed from sequences from this study and Pfeiler et al. (2013).
Fig. 11. Carcinops consors morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 11. Carcinops consors morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
Fig. 16. Carcinops curtus morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 16. Carcinops curtus morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
Fig. 20. Carcinops kumeyaay morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 20. Carcinops kumeyaay morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
Fig. 19. Carcinops yaqui morphology. A in A Review of the CactophilicCarcinopsMarseul (Coleoptera: Histeridae) of the Sonoran Desert Region, with Descriptions of Six New Species
Fig. 19. Carcinops yaqui morphology. A) Dorsal view, B) Ventral view. Photographs by E. Reese.
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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.