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566 results for “Western Mexico.”
Fig. 2 in Hybridization Between the Endangered Unisexual Gray-Checkered Whiptail Lizard (Aspidoscelis dixoni) and the Bisexual Western Whiptail Lizard (Aspidoscelis tigris) in Southwestern New Mexico
Fig. 2. Cherry array with drift fence and pitfall traps, where one of the hybrids was found, Antelope Pass, Peloncillo Mountains, Hidalgo County, New Mexico. Photo by C.J.C., June 8, 1990.
Fig. 8 in Hybridization Between the Endangered Unisexual Gray-Checkered Whiptail Lizard (Aspidoscelis dixoni) and the Bisexual Western Whiptail Lizard (Aspidoscelis tigris) in Southwestern New Mexico
Fig. 8. Pattern of morphological distinctiveness expressed by the distribution of canonical variate scores derived from a canonical variate analysis of five meristic characters of 30 specimens of Aspidoscelis from Antelope Pass, Hidalgo County, New Mexico. The specimens include representatives of two species (A. dixoni C and A. t. punctilinealis) and hybrids between them. Note that the three hybrids cluster most closely to their maternal parent.
Stand inventory data (overstory and understory) in northern New Mexico forests affected by western spruce budworm (Choristoneura freemani Razowski) defoliation, 2012-2013
Stand Selection Stands were selected based on data provided by the United States Forest Service insect and disease aerial survey maps. The following criteria was used for stand selection: 1. At least 50% of pre-2000 species composition comprised of the same host tree; 2. No forest treatments within previous 20 years; and 3. Similar slope, aspect, vegetation association and elevation. Stands ranged from west-central New Mexico to north-central New Mexico. Sampling was completed in the summers of 2012 and 2013 in the Mount Taylor stands and the summer of 2013 for the remainder of the stands. Plots A randomized, systematic grid of ten clusters of two 0.02 ha plots were established using GIS software and exported to a handheld GPS. One plot of each cluster was located on the intersection of the grid (‘grid plots’) and the second located 50m at a random azimuth from the established grid plot (‘cluster plots’). This methodology was shown to improve sampling efficiency for stand characteristics pertaining to western spruce budworm within a set allowable error (Lynch 2003). Five 0.001 ha nested regeneration plots were also established (described below). Plot Characteristics Vegetation association was assessed using the Plant Associations of Arizona and New Mexico habitat typing guide. Canopy cover was recorded using a GRS densiometer in 1m increments on two 15.96 m transects bisecting plot center running north to south and east to west. Measurements will begin at 1m and extend to 15m totaling 15 measurements on the north to south transect. The east to west transect will exclude the measurement at 8m to avoid repeated measurements. Canopy cover was calculated by the number of canopy “hits” divided by the total number of measurements taken Overstory Measurements Species and diameter at breast height (DBH) was measured for all trees greater than 12.7 cm in diameter occurring in plot. DBH was considered to be 1.37 meters above ground. The height and canopy base height of each t
Stingless bees (Apidae: Meliponini) at risk in western Mexico
<p>The current global pollinator crisis highlights the need to investigate the diversity and distribution of ecologically and socially relevant taxa such as tropical stingless bees. We analyzed the diversity and composition of stingless bee (Meliponini) communities at a regional scale in west-central Mexico using an extensive direct search along an altitudinal gradient encompassing different climate and vegetation types. Our hypothesis was that meliponine bee diversity would be greater in tropical warmer. We found a total of 14 meliponine bee species, including two new records for the region. We identified three types of bee assemblages: one in hot lowland climates with tropical dry forest vegetation, one in temperate highland climates with mixed oak-pine forest vegetation, and one in the warm ecotone with mixed subdeciduous forest vegetation between the hot and temperate zones. As expected, the lowland assemblage in the tropical dry forest vegetation had the greatest diversity (11 species). In the warm ecotone, meliponine species from temperate highlands and hot lowland habitats converged; this region should therefore be considered a high conservation priority area. Fifty percent of the meliponine bees found are endemic and have a very low incidence, suggesting that their populations may be endangered. Given the extensive and ongoing change of land use to avocado plantations in the warm ecotone and temperate highlands with mixed oak-pine forest vegetation cover, specific conservation plans should be generated to conserve the natural ecosystems and this important native pollinator group.This data set provides the information about Melliponin sampling in Michoacan, Mexico during 2018-2019. It provides the locality name, altitude, vegetation type and climate per sampling site.</p>
Fig. 1 in Association of bat flies (Diptera: Streblidae) and bats: Richness and host specificity in Western Mexico
Fig. 1. Location of the streblid collection sites between 2012 and 2022.
Fig. 35 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones
Fig. 35. Ventral views of the same lizards arranged in the same sequence as in figure 34.
Fig. 3. The contact region. Numbers designate collecting sites. Compare with figure 49 in Hybridization Among Western Whiptail Lizards (Cnemidophorus Tigris) In Southwestern New Mexico: Population Genetics, Morphology, And Ecology In Three Contact Zones
Fig. 3. The contact region. Numbers designate collecting sites. Compare with figure 49.
Fig. 9 in Hybridization Between the Endangered Unisexual Gray-Checkered Whiptail Lizard (Aspidoscelis dixoni) and the Bisexual Western Whiptail Lizard (Aspidoscelis tigris) in Southwestern New Mexico
Fig. 9. Antelope Pass, Peloncillo Mountains, Hidalgo County, New Mexico. Photo by C.W.P., April 1,
Data from: Two new species of Eleutherodactylus from Western and Central Mexico (Eleutherodactylus jamesdixoni sp. nov., Eleutherodactylus humboldti sp. nov.)
<p>Here, we provide 1) raw and edited recordings of male advertisement calls from two new species of <em>Eleutherodactylus</em> (<em>Syrrhophus</em>) and their sister species, including R scripts used to analyze the data, and 2) photos of preserved specimens from which morphological measurements were collected.</p>
Abundance and occupancy of the western yellow-billed cuckoo (Coccyzus americanus) in Sonora, Mexico
<p><span>Unveiling factors that determine abundance and distribution of endangered wildlife species has relevant implications in their conservation across international boundaries.</span><span> For instance, the Western Distinct Population (as defined by the U.S. Fish and Wildlife Service) of the yellow-billed cuckoo <em>Coccyzus americanus</em> (Linnaeus, 1758) has disappeared in most of the species' range </span><span>across the western United States and southwestern Canada, but little is known about the conservation status at the southern edge of its breeding distribution in Mexico. To fill this information gap, we estimated abundance and occupancy rates of yellow-billed cuckoos using a standard broadcast call survey protocol. We used Bayesian spatial count models to estimate cuckoo population density at survey sites. We used Bayesian hierarchical models to estimate the effects of geography, climate, and vegetation on occupancy rates while accounting for imperfect detection. Mean cuckoo count per transect for all sites was <em>C</em></span><span> = 9.00 </span><span>±</span><span> 0.45 cuckoos. Overall cuckoo density was <em>D</em> </span><span> = 13.18 cuckoos/km<sup>2</sup> (SD(<em>D</em></span><span> </span><span>) = 5.61 cuckoos/km<sup>2</sup>). Overall cuckoo occupancy in Sonora was <em>φ</em></span><span> = 0.538 (95%CrI(</span><em>φ</em><span>) = 0.544–0.600) but showed strong geographic variation. Relatively high occupancy levels suggest yellow-billed cuckoo populations in Sonora may be robust, but they are largely reliant on declining high-tree cover.</span></p>
Stingless bees (Apidae: Meliponini) at risk in western Mexico
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Abundance and occupancy of the western yellow-billed cuckoo (Coccyzus americanus) in Sonora, Mexico
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Data from: Two new species of Eleutherodactylus from Western and Central Mexico (Eleutherodactylus jamesdixoni sp. nov., Eleutherodactylus humboldti sp. nov.)
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FIGURE 3 in Rediscovery of the deep-water species Ypsilocucumis californiae Massin & Hendrickx, 2011 (Echinodermata; Holothuroidea; Ypsilothuriidae) in western Mexico
FIGURE 3. Ypsilocucumis californiae Massin & Hendrickx, 2011 (A, I: ICML-EMU-11504; A, II: ICML-EMU-11505; B: ICML-EMU-11503). (A, I, II) SEM images of the arrangement of the tables and plates in layers superimposed, and (B) tentacles rods.
FIGURE 2 in Rediscovery of the deep-water species Ypsilocucumis californiae Massin & Hendrickx, 2011 (Echinodermata; Holothuroidea; Ypsilothuriidae) in western Mexico
FIGURE 2. Ypsilocucumis californiae Massin & Hendrickx, 2011 (A: ICML-EMU-11505; B: ICML-EMU-11504). (A) Lat- eral view of the body. (B) SEM images of the ossicles: (B, I–V) perforated tables with an eccentric spire; (C, I–IV) perforated plates without spire. Arrangement of the tables with spire and perforated plates that cover the body (B, III, V), (d=dorsal region, v=ventral region).
FIGURE 2. Localities where S. curvidactyla Chevreux, 1914 in Species of Scina Prestandrea, 1833 (Amphipoda, Hyperiidea, Scinidae) from western Mexico with the description of a new species from the Gulf of California
FIGURE 2. Localities where S. curvidactyla Chevreux, 1914, and S. trispina sp. nov. were captured during this survey.
FIGURE 4. Lithopanopeus truesdalei n. gen., n in A new genus and species of mud crab (Crustacea, Brachyura, Panopeidae) from shoreline waters of the western Gulf of Mexico
FIGURE 4. Lithopanopeus truesdalei n. gen., n. sp. A, male holotype (USNM 1611097 = ULLZ 17919) cw 9.6 mm, northwestern Gulf of Mexico; B, juvenile male paratype (USNM 1541468 = ULLZ 6447) cw 6.3 mm, southwestern Gulf of Mexico.
FIGURE 3. Lithopanopeus truesdalei n. gen., n in A new genus and species of mud crab (Crustacea, Brachyura, Panopeidae) from shoreline waters of the western Gulf of Mexico
FIGURE 3. Lithopanopeus truesdalei n. gen., n. sp., female paratype (USNM 1611099 = ULLZ 18401). A, right side of carapace, dorsal surface (setae not shown); B, major (right) cheliped, supero-internal surface; C, thoracic sternum, pleon lifted away to expose gonopores; D, pleon, external surface. Scale bars = 2.0 mm.
FIGURE 2. Lithopanopeus truesdalei n. gen., n in A new genus and species of mud crab (Crustacea, Brachyura, Panopeidae) from shoreline waters of the western Gulf of Mexico
FIGURE 2. Lithopanopeus truesdalei n. gen., n. sp., male holotype (USNM 1611097 = ULLZ 17919) A–C, E–I; male paratype (USNM 1541468 = ULLZ 6447) D, J. A, right second pereopod, upper surface; B, right third pereopod, lower surface; C, right fourth pereopod, upper surface; D, right fifth pereopod, upper surface; E, pleon, sternum, and pereopod coxae, posteroventral surfaces; F, pleon disarticulated; G, right first gonopod, lateral surface; H, right first gonopod, sternal surface; I, right first gonopod, abdomino-mesial surface; J, right second gonopod, pleonal surface. Scale bar = 3.0 mm (A–C); 2.0 mm (D–F); 1.0 mm (G, J); 0.5 mm (H, I).
FIGURE 1. Lithopanopeus truesdalei n. gen., n in A new genus and species of mud crab (Crustacea, Brachyura, Panopeidae) from shoreline waters of the western Gulf of Mexico
FIGURE 1. Lithopanopeus truesdalei n. gen., n. sp., male holotype (USNM 1611097 = ULLZ 17919) A–F, H; male paratype (USNM 1541468 = ULLZ 6447) G, I. A, right side of carapace, dorsal surface; B, left side of carapace, ventral surface; C, right third maxilliped detached, external surface, (arthrobranch gill pair not shown); D, right third maxilliped detached, internal surface; E., major (left) cheliped, supero-internal surface; F, major (left) chela, external surface; G, major (left) chela fingers, external surface; H, minor (right) cheliped, infero-external surface; I, minor (right) cheliped, supero-internal surface. Scale bars = 2.0 mm.
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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
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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.