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13 results for “scrubland”
Figures 15–18. Big Bend desert scrubland habitat. 15 in The dung beetle fauna of the Big Bend region of Texas (Coleoptera: Scarabaeidae: Scarabaeinae)
Figures 15–18. Big Bend desert scrubland habitat. 15) Rocky hillside, Pinto Canyon (Presidio Co.). 16) Rio Grande valley, southeast corner of Presidio Co. (Mexico to the left; United States to the right). 17) Scrub hillside, south Brewster Co. 18) Creek bed, Chinati Hot Springs (Presidio Co.).
Meteorological and Ecosystem Flux Data for: Climate Change Impacts on Net Ecosystem Productivity in a Subtropical Scrubland of Northwestern México
<p>This dataset accompains the paper: Climate Change Impacts on Net Ecosystem Productivity in a Subtropical Scrubland of Northwestern México which is submitted for publication at the Journal of Geophysical Research - Biogeosciences </p> <p>With this data set, we calibrate and validate an ecohydrological and a soil carbon model to assess climate change impacts in a subtropical scrubland located in northwest México. Model calibration and validation is performed using five continuous years of water, energy and carbon flux measurements from an eddy covariance tower and remotely-sensed vegetation indices. </p>
Data from: Microclimate and seed bank under Pithecellobium keyense (Fabaceae) in a coastal scrubland
<p><span>This study was conducted on a sandy beach of Yucatán, Mexico. We collected soil samples and measured microclimatic variables under 30 adult individuals of the shrub <em>Pithecellobium</em> <em>keyense</em> at three different positions under the canopy of every studied individual: "Open" or completely sunny, "Half shaded", placed at the border of the canopy and "Fully shaded" placed under the canopy, next to the stem of the shrub. Seeds in the soil samples were collected, counted and tested for viablity. <span>The shade of <em>Pithecellobium</em> <em>keyense</em> buffers for extreme values of environmental variables such as noon temperature, PPFD (Photosynthetic Photon Flux Density) and air relative humidity, this effect is stronger in the dry season. </span></span><span>During the dry season, the probability of seed viability decreased with increasing PPFD. </span>During the rainy season, the probability of seed viability was larger in the Half shade position and lower in Full shade and in the Open (high light) positions. The seed bank was larger during the dry season than during the rainy season.</p>
Data from: Microclimate and seed bank under Pithecellobium keyense (Fabaceae) in a coastal scrubland
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Data from: Intraspecific interactions affect the spatial pattern of a dominant shrub in a semi-arid scrubland: a prospective approach
Dispersal, physical conditions and biotic interactions contribute to determine the spatial distribution of individuals in plant populations. Much of what we know has been learned from studies that retrospectively posit mechanisms presumed to have generated the observed spatial patterns. Here we present a prospective approach. We start by measuring spatial demographic effects and evaluate if they can generate observed spatial patterns. We evaluated the influence of interactions among conspecifics on vital rates, demography and spatial distribution of Croton aff. wagneri, a dominant shrub in dry Andean ecosystems. Recruitment, survival and growth varied in relation with distance to conspecifics neighbors and with their summed cover. We built a spatial individual-based model and simulated its population dynamics in 30 × 30 m plots for a 30 year periods. We compared the predicted spatial pattern from these demographic models with that observed among plants in sixteen independent plots with the same area. Simulated populations mimicked observed spatial patterns, although in plots at high elevations the simulated populations did not reproduce the observed inhibition at small scales. Observed and simulated patterns indicated differences between elevations in maximum aggregation and location of the distances with higher aggregation. We discuss how consideration of critical seed and juvenile stages and interspecific interactions could further improve our understanding of spatial pattern and recommend that these factors be considered in future models.
Subspecies and Distribution. P. g. gymnocercus Fischer, 1814 — subtropical grasslands of NE Argentina, SE Brazil, Paraguay, and Uruguay. Pg. antiquus Ameghino, 1889 — Pampas grasslands, monte scrublands, and open woodlands of C Argentina. P. g. lordi Massoia, 1982 — Chaco-montane tropical forest ecotone in NW Argentina (Salta & Jujuy Provinces). The subspecific status of the Pampas Fox from Entre Rios Province in Argentina remains unclear, and there are no data regarding the taxonomic position of Bolivian foxes. in Canidae
Subspecies and Distribution. P. g. gymnocercus Fischer, 1814 — subtropical grasslands of NE Argentina, SE Brazil, Paraguay, and Uruguay. Pg. antiquus Ameghino, 1889 — Pampas grasslands, monte scrublands, and open woodlands of C Argentina. P. g. lordi Massoia, 1982 — Chaco-montane tropical forest ecotone in NW Argentina (Salta & Jujuy Provinces). The subspecific status of the Pampas Fox from Entre Rios Province in Argentina remains unclear, and there are no data regarding the taxonomic position of Bolivian foxes.
FIGURE. Four endemic taxa of the Bermejense sector: A. Centaurea haenseleri (slopes in the north face of Mountain Cerro del Duque); B. Galium boissieranum (scrublands in the Mountain Sierra del Real); C. Armeria colorata (shady rocks in the north face of Abanto peak); D. Staehelina baetica (thermophilic scrublands in the Mountain Sierra Palmitera). (Photos by authors). in Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain)
FIGURE. Four endemic taxa of the Bermejense sector: A. Centaurea haenseleri (slopes in the north face of Mountain Cerro del Duque); B. Galium boissieranum (scrublands in the Mountain Sierra del Real); C. Armeria colorata (shady rocks in the north face of Abanto peak); D. Staehelina baetica (thermophilic scrublands in the Mountain Sierra Palmitera). (Photos by authors).
FIGURE. Four endemic taxa of the Rondeño sector: A. Astragalus nevadensis subsp. andres-molinae (high mountain cushion scrublands in the plateau of Quejigal de Tolox); B. Teucrium teresianum (thermophilic scrublands in the south face of Mount Torrecilla); C. Cytisus fontanesii subsp. plumosus (grazed scrublands in La Nava polje); D. Armeria villosa subsp. villosa (vertical cliffs in the north face of Fatalandar peak). (Photos by authors). in Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain)
FIGURE. Four endemic taxa of the Rondeño sector: A. Astragalus nevadensis subsp. andres-molinae (high mountain cushion scrublands in the plateau of Quejigal de Tolox); B. Teucrium teresianum (thermophilic scrublands in the south face of Mount Torrecilla); C. Cytisus fontanesii subsp. plumosus (grazed scrublands in La Nava polje); D. Armeria villosa subsp. villosa (vertical cliffs in the north face of Fatalandar peak). (Photos by authors).
FIGURE. Spring view of the open forests of Quercus faginea subsp. alpestris in a matrix of oromediterranean cushion endemic scrublands dominated by Astragalus nevadensis subsp. andres-molinae and Bupleurum spinosum. (Photo authors). in Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain)
FIGURE. Spring view of the open forests of Quercus faginea subsp. alpestris in a matrix of oromediterranean cushion endemic scrublands dominated by Astragalus nevadensis subsp. andres-molinae and Bupleurum spinosum. (Photo authors).
FIGURE. Landscape in the Bermejense biogeographical sector. Shrublands dominated by Juniperus oxycedrus subsp. oxycedrus and serpentine endemic scrublands in the Cerro Corona (1,299 m). (Photo authors). in Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain)
FIGURE. Landscape in the Bermejense biogeographical sector. Shrublands dominated by Juniperus oxycedrus subsp. oxycedrus and serpentine endemic scrublands in the Cerro Corona (1,299 m). (Photo authors).
FIGURE. In the foreground, Aljíbico sector with Pinus pinaster and Quercus suber, in the centre Bermejense sector with serpentine scrublands and in the background the Rondeño sector with the highest summit of the studied area (La Torrecilla, 1,918 m) oromediterranean bioclimatic belt. (Photo authors) in Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain)
FIGURE. In the foreground, Aljíbico sector with Pinus pinaster and Quercus suber, in the centre Bermejense sector with serpentine scrublands and in the background the Rondeño sector with the highest summit of the studied area (La Torrecilla, 1,918 m) oromediterranean bioclimatic belt. (Photo authors)
Subspecies and Distribution. P. g. gymnocercus Fischer, 1814 — subtropical grasslands of NE Argentina, SE Brazil, Paraguay, and Uruguay. P.g. antiquus Ameghino, 1889 — Pampas grasslands, monte scrublands, and open woodlands of C Argentina. P. g. lordi Massoia, 1982 — Chaco-montane tropical forest ecotone in NW Argentina (Salta & Jujuy Provinces). The subspecific status of the Pampas Fox from Entre Rios Province in Argentina remains unclear, and there are no data regarding the taxonomic position of Bolivian foxes. in Canidae
Subspecies and Distribution. P. g. gymnocercus Fischer, 1814 — subtropical grasslands of NE Argentina, SE Brazil, Paraguay, and Uruguay. P.g. antiquus Ameghino, 1889 — Pampas grasslands, monte scrublands, and open woodlands of C Argentina. P. g. lordi Massoia, 1982 — Chaco-montane tropical forest ecotone in NW Argentina (Salta & Jujuy Provinces). The subspecific status of the Pampas Fox from Entre Rios Province in Argentina remains unclear, and there are no data regarding the taxonomic position of Bolivian foxes.
Data from: Intraspecific interactions affect the spatial pattern of a dominant shrub in a semi-arid scrubland: a prospective approach
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