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Topic: Creosotebush

	Creosotebush (Site not responding. Last check: 2007-10-14)
		Creosotebush is found on alluvial plains, hillsides, mesas, and in deserts in the southwestern corner of Utah.
		Creosotebush invades desert grasslands, and its habitat has increased over 70 times the size it was in the 1930's.
		Creosotebush is host to an insect, Tachardiella larreae, which produces lac and deposits it on the stems of creosotebush.
	extension.usu.edu /rangeplants/Woody/creosotebush.htm (459 words)

	Species: Larrea tridentata
		In the Sonoran Desert, creosotebush commonly occurs in the creosotebush-triangle bursage (Ambrosia deltoidea) [7], creosotebush-white bursage [91], and Sonoran Desert scrub [54] associations.
		The densities of creosotebush in the subdivisions of the Sonoran Desert are 448 plants per hectare in the Lower Colorado River Valley, 437.7 plants per hectare in the Arizona Upland Subdivision, and 1.1 plants per hectare on the Central Gulf Coast [67].
		Creosotebush dominated the diet of desert woodrats in the Mojave Desert of California; the desert woodrats strongly preferred creosotebush foliage of relatively low resin content [74].
	www.fs.fed.us /database/feis/plants/shrub/lartri/all.html (5840 words)

	The Functional Ecology of Creosotebush, Larrea tridentata
		Creosotebush is a C3 evergreen shrub with a flexible rooting pattern and variable morphology.
		The canopy morphology of creosotebush shrubs is a determinant of soil organic matter content and nitrogen content of the sub-canopy soils.
		While desert tortoises may not eat creosotebush foliage, the functional ecology of this shrub is an important determinant of habitat suitability for tortoises.
	www.deserttortoise.org /abstract/abstracts1998/abs47.html (420 words)

	Creosote bush
		Creosotebush also occurs in the Mojave Desert scrub association with desertholly (Atriplex hymenelytra), shadscale (A. confertifolia), white burrobrush (Hymenoclea salsola), flbrush (Coleogyne ramosissima), Joshua tree, desertsenna (Cassia armata), and Nevada ephedra (Ephedra nevadensis).
		Creosotebush dominated the diet of desert woodrats in the Mojave Desert of California; the desert woodrats strongly preferred creosotebush foliage of relatively low resin content.
		Creosotebush is known to attain ages of several thousand years; some creosotebush clones may be the earth's oldest living organisms.
	mojavedesert.net /plants/shrubs/creosote.html (1859 words)

	AllRefer - Species: Creosotebush \| Larrea tridentata > Botanical and ecological characteristics
		Creosotebush seeds are primarily adapted for tumbling rather than for animal dispersal or lofting [68].
		Mature creosotebush may be allelopathic to their own seedlings, encouraging an open community structure [71].
		Creosotebush usually flowers in May [1] in the Mojave Desert, but it can flower anytime during the summer if it receives enough rain [1,3,9].
	reference.allrefer.com /wildlife-plants-animals/plants/shrub/lartri/botanical-ecological-characteristics.html (1512 words)

	Southern Desert Shru (Site not responding. Last check: 2007-10-14)
		Creosotebush - bursage -- an extreme desert type, with winter annuals which grow for a few weeks when moisture is available, complete their life cycle, seed, and are seen no more until the following year.
		Major plants are creosotebush, the desert gramas (Bouteloua rothrockii and B. eriopoda) and tobosa.
		Creosotebush - tarbrush (Flourensia cernua) -- same area but where rainfall is about 40 centimeters.
	spuds.agron.ksu.edu /sds.htm (634 words)

	Desert Diary, 22 July 2003--Creosotebush vs. Creosote Grasshopper
		Such is the case with Creosotebush and the Creosote Grasshopper, Bootettix punctatus, which feeds exclusively on that plant.
		Creosotebush leaves are protected by a resinous coating, making them indigestible to most browsers.
		Creosotebush (Larrea tridentata), dinner for the Creosote Grasshopper (Bootettix punctatus).
	museum.utep.edu /archive/biology/DDcreohopper.htm (309 words)

	ARIZ - Tucson Mountains
		On Turner's (1974) vegetation map of the Tucson area, creosotebush and paloverde and saguaro desertscrub, and a woody phase of desert grassland formed the vegetation of the Tucson Mountains.
		The Creosotebush and Bursage association is typically found at 650 to 800 m elevations on fine and grained soils on the least rocky, most level terrain.
		The subshrub layer is often a monotypic stand of triangleleaf bursage, although white bursage is common on sandy soils in the northwestern corner of the study area.
	ag.arizona.edu /herbarium/floras/tucsons/index.html (5266 words)

	Vegetation Studies in Southern New Mexico
		“Creosotebush appears to be well adjusted to the relative availability of water and N in the environment since both resources appear to limit growth.
		Finally, creosotebush is most responsive to increased moisture availability during the seasons of the most reliable precipitation in the northern Chihuahuan Desert, the late summer and fall.
		This facilitates retention and accumulation of litter and nutrient enrichment of soils under the canopy.” On a dry bajada a conical shape enhances stemflow which is channelized to the deep roots.
	lib.nmsu.edu /resources/guides/plants/vegstud.html (7384 words)

	Top-down impacts on creosotebush herbivores in a spatially and temporally complex environment Ecology - Find Articles
		Herbivorous insects on creosotebush live in a heterogeneous environment, in which host plant quality can vary significantly both within and among stands of creosotebush (Lightfoot and Whitford 1987, 1989, 1991).
		Creosotebushes at Sites B and C have been characterized as "poor" and "high" quality, respectively, by Lightfoot and Whitford (1989), based on chemical characterization of creosotebush leaf tissue.
		Creosotebushes at Site A were not studied by Lightfoot and Whitford (1989), but have "high-quality" foliar chemical profiles, similar to the creosotebushes at Site C (J. Schultz and H. Appel, unpublished data).
	www.findarticles.com /p/articles/mi_m2120/is_n5_v77/ai_18601061 (810 words)

	ARS \| Publication request: Loss of Phenolic Compounds from Leaf Litter of Creosotebush [larrea Tridentata (Sess. & Moc. ...
		Losses of organic matter from creosotebush litter during the spring were much greater (75.1 and 33.5% for buried and surface samples, respectively).
		Total phenolic losses after 90 days were 1.6, 4.8, 21.6, 13.5, 87.1, and 43.5% for winter buried creosotebush, winter surface creosotebush, winter buried tarbush, winter surface tarbush, spring buried creosotebush, and spring surface creosotebush litter, respectively, while losses of condensed tannins for the same samples were 45.8, 56.1, -34.0, -41.8, 91.1, and 67.4%.
		Nordihydroguaiaretic acid loss from creosotebush litter was 25.4, 18.3, 95.2, and 66.7% for winter buried, winter surface, spring buried, and spring surface samples, respectively, over the 90-day interval.
	www.ars.usda.gov /research/publications/Publications.htm?seq_no_115=164820&pf=1 (503 words)

	Desert Food Chain Part 7
		The Creosotebush, comparable to the mesquites in aggressiveness, tenacity and range, probably ranks as the shrub most perfectly adapted to the desert environment.
		Heavily branched, the Creosotebush turns the edges instead of the broad surfaces of its leaves toward the sun, further reducing the plant’s exposure to ultraviolet radiation and transpiration.
		Additionally, the Creosotebush’s lateral roots produce clones that grow in rings around the parent plant, creating immediate botanical brethren with direct connections to tissue that may date back thousands of years, to the end of the Ice Ages.
	www.desertusa.com /mag05/aug/food7.html (2470 words)

	Species:
		In the Lower Colorado River Valley, the density of white bursage is 84 plants per hectare and white bursage cover is 0.1 percent [29].
		McAuliffe [31] found that 85.5 percent of all young creosotebush were rooted beneath the canopies of live white bursage or positioned next to dead ones.
		Because of its colonizing ability, white bursage is a common pioneer on disturbed areas in the Mojave Desert [36].
	www.fs.fed.us /database/feis/plants/shrub/ambdum/all.html (3617 words)

	Desert Diary, 11 Sep 2001
		A tiny, scaly insect grew from its branches using the Creosotebush's resin to produce its own covering of lac.
		Paleoecologists confirm that Creosotebush existed near the Little Colorado River more than 17,000 years ago and speculate that it migrated up from South America during the Pleistocene and began to spread as the Ice Age waned.
		To hear the audio from the broadcast, you need to be using Internet Explorer and have RealPlayer, a free download (go to near the bottom of the RealPlayer page and download RealPlayer 8 basic).
	museum.utep.edu /archive/plants/DDcreosote.htm (307 words)

	Search for products to control Creosotebush based upon pesticides registered in various states to control Creosotebush (Site not responding. Last check: 2007-10-14)
		Creosotebush is a 'pest' (an unwanted organism) that can be controlled through the use of pesticides.
		Pesticides, such as products to control Creosotebush, are regulated by State Departments of Agriculture.
		To find all products ever registered at EPA to control Creosotebush: www.kellysolutions.com/epadata (login as username: 'Guest' and password: 'Guest' - your results will be limited to 5 items).
	www.kellysolutions.com /searchpests/Creosotebush.htm (388 words)

	2006 LTER ASM - Interactions between desert seed harvester ants (Pogonomyrmex desertorum) and granivorous kangaroo rats ...
		Interactions between desert seed harvester ants (Pogonomyrmex desertorum) and granivorous kangaroo rats (Dipodomys merriami) in a Sevilleta desert creosotebush (Larrea tridentata) community.
		The interactions between granivorous rodents and ants in Chihuahuan Desert ecosystems have been studied and debated for 30 years, yet no clear demonstration of competitive interactions have been presented.
		Several Pogonomyrmex species were present at the Sevilleta grassland and creosotebush SMES study sites, but only one, P. desertorum, was common enough to assess statistically.
	www.lternet.edu /asm/2006/posters/poster.php?poster_id=391 (443 words)

	Bryan Brandel, Wessman Research Group
		However, given the current uncertainty in estimates of carbon (C) sequestration associated with woody plant encroachment, research directed at assessing the consequences of this conversion is necessary.
		The encroachment of creosotebush (Larrea tridentata), in particular, is not well understood, and yet it is the most broadly distributed shrub in the semiarid regions of the Southwest.
		This research will address the impact of resource islands on the formation of creosotebush patches, the distribution of C and nitrogen (N) resources across the ecotone, and the effects ecotone structure has on resource distributions and aboveground biomass.
	cires.colorado.edu /science/groups/wessman/people/brandel (331 words)

	[No title]
		Populations of grasshoppers were censused 1983-1987 in a degraded grassland dominated by creosotebush. For adults, there were three phenological groups of species: (1) two Trimerotropis spp.
		This is unexpected, since Cibolacris parviceps is closely associated with this shrub and has been found to feed readily upon, and sometimes depend upon Larrea, (Otte and Joern, 1977). Ligurotettix coquilletti, an oligophagous feeder on Larrea, was not present, although it is present 16 km or less to the east.
		The effect of removal of creosotebushes from a Larrea-dominated shrub grassland.
	www.larrea-plot.com /grasshopper/grhp2.html (4923 words)

	Applications of creosotebush in phytoremediation of copper(II) and chromium(VI) ions
		Applications of creosotebush in phytoremediation of copper(II) and chromium(VI) ions
		Larrea tridentata (creosotebush), a common, North American native desert shrub, shows the ability to take up copper(II) and chromium(VI) ions rapidly from solution.
		EPA method 200.3 was followed to digest the plant samples and flame atomic absorption spectroscopy (FAAS) was used to determine-the amount of copper and chromium taken up in different parts of the plant.
	digitalcommons.utep.edu /dissertations/AAI3008207 (401 words)

	Jornada Basin LTER Data Catalog (Site not responding. Last check: 2007-10-14)
		Abstract: A field study was conducted to test the hypothesis that creosotebush (Larrea tridentata) shrubs growing in naturally nutrient-rich sites had better quality foliage and supported greater populations of foliage arthropods than shrubs growing in nutrient-poor sites.
		This is data for foliage arthropods sampled from LVAR creosotebush shrubs.
		Dry weight of total creosotebush and mesquite litterfall collected is recorded as well as leaf, stem, and seed fractions.
	jornada-www.nmsu.edu /datacat.htm (9647 words)

	Genetic diversity in Chihuahuan Desert populations of creosotebush (Zygophyllaceae: Larrea tridentata) -- Duran et al. ...
		Genetic diversity in Chihuahuan Desert populations of creosotebush (Zygophyllaceae: Larrea tridentata)
		F statistics and gene diversity statistics of Larrea tridentata (creosotebush).
		Yang T. 1967 Chromosome numbers in populations of creosotebush (Larrea divaricata) in the Chihuahuan and Sonoran subdivisions of the North American Desert.
	www.amjbot.org /cgi/content/full/92/4/722 (4311 words)

	North American Mammals: Spermophilus tereticaudus
		They dig their burrows in loose soil, often under a shrub.
		Mesquite and creosotebush are typically the dominant plants in their habitat.
		They can stay active on very hot days, and in some areas they are active year-round.
	www.mnh.si.edu /mna/image_info.cfm?species_id=343 (146 words)

	Management of mesquite, creosotebush, and tarbush with herbicides in the northern Chihuahuan Desert (Bulletin / ...
		Management of mesquite, creosotebush, and tarbush with herbicides in the northern Chihuahuan Desert (Bulletin / Agricultural Experiment Station, New Mexico State University)
		Home : Environmental Toxins : Creosote : Bookstore : Management of mesquite, creosotebush, and tarbush with herbicides in the northern Chihuahuan Desert (Bulletin / Agricultural Experiment Station, New Mexico State University)
		Bookstore - Management of mesquite, creosotebush, and tarbush with herbicides in the northern Chihuahuan Desert (Bulletin / Agricultural Experiment Station, New Mexico State University)
	creosote.legalview.com /bookstore/36974 (405 words)

	Fire Temperatures and Their Effects on Annual Plants in Creosotebush Scrub
		Fire Temperatures and Their Effects on Annual Plants in Creosotebush Scrub
		U.S. Geological Survey, Western Ecological Research Center, Las Vegas Field Station, 160 N. Stephanie, Henderson NV 89014
		I also compared temperature patterns with postfire changes in soil properties and annual plant biomass and species richness to infer potential mechanisms by which fires affect annual plants.
	www.deserttortoise.org /abstract/abstracts2003/2003abs14.html (198 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		Mapping scale did not allow for delineation.CD2bCATCLAW ASSOCIATION Primarily an Arizona association which occurs in small amounts around Carlsbad, New Mexico and in Southwestern New Mexico in greater amounts.
		The more common shrubs are tuberaled saltbush, fourwing saltbush, tarbush, and iodinebush.CD4bFOURWING SALTBUSH-TOBOSA ASSOCATION Vegetation consists mainly of alkali sacaton, sand dropseed, gyp dropseed, gyp grama, fluffgrass, coldenia, fourwing saltbush and traces of mesquite, creosotebush and tarbush.GD1aBIG SAGEBRUSH ASSOCIATION The more common grasses are western wheatgrass, galleta, alkali sacaton, blue grama, and sand dropseed.
		In association will be moderate amounts of blue, hairy and sideoats gramas with occasional plants of mesa and sand dropseed.
	www.nm.nrcs.usda.gov /technical/fotg/section-1/maps/legend-pnv.doc (1986 words)

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