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Topic: Edaphic

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	Edaphic - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-15)
		Edaphic conditions and plant-soil relationships on roadsides in Denmark (Dansk botanisk arkiv ; bd.
		Reproductive biology and edaphic characteristics of a rare saxifrage: Saxifraga bryphora var.
		Edaphic factors in the distribution of aquatic plants in the English lakes,
	encyclopedia.worldsearch.com /edaphic.htm (161 words)

	Ecology: Edaphic Factors And The Landscape-Scale Distributions Of Tropical Rain Forest Trees
		For a variety of reasons, including issues relating to sample size and adequate edaphic characterization of landscapes, we suggest that the -30% of species shown to be edaphically biased in this study is an underestimate of the true degree of edaphically related distributional biases.
		If edaphic distributional biases are shown to be common, this suggests that edaphically linked processes leading to differential recruitment are similarly common.
		We found that edaphically biased distributions were common.
	www.findarticles.com /p/articles/mi_m2120/is_8_80/ai_58517878 (1439 words)

	ebcc
		Inconsistency of results may indicate that other factors may predominate over those analyzed, such as, the ability to tolerate shade or sunlight, density-dependent susceptibility to herbivores or pathogens, pollinators or seed dispersers, physical disturbance, etc. The understanding of species distribution is a first step towards a further development in population, community and ecosystem ecology.
		Edaphic and human effects on landscape-scale distributions of tropical rain forest palms.
		Edaphic variation and the mesoscale distribution of tree species in a neotropical rain forest.
	www.duke.edu /~manu/Projects/julissa.htm (1169 words)

	fairy rings and turfgrass damage
		Edaphic fairy rings are produced by fungi that primarily colonize the soil, while lectophilic fairy rings are produced by fungi that primarily colonize the thatch and leaf litter.
		Edaphic fairy rings are more common on lawns and pastures, while lectophilic fairy rings are more likely to develop on golf course putting greens and other closely mowed, high-maintenance turf.
		Any decision regarding a fairy ring control strategy depends on whether the fungus is edaphic (soil-inhabiting) or lectophilic (thatch-inhabiting), the level of turf maintenance (lawn, park, putting green or fairway) and the degree to which the symptoms (Type I, II or III) are expressed.
	grounds-mag.com /mag/grounds_maintenance_figuring_fairy_rings (1749 words)

	Searching Dataset GLOBAL
		Tree species diversity and mesoscale edaphic heterogeneity in a lowland tropical rain forest.
		Edaphic factors and the landscape-scale distributions of tropical rain forest trees.
		Edaphic, topographic, and human effects on palm species distributions in a neotropical rain forest.
	www.ots.ac.cr /rdmcnfs/datasets/exsrch.phtml?ds=global&qbe=3633 (3811 words)

	Focus on Rarities: Endemism II (Site not responding. Last check: 2007-10-15)
		Excluded taxa are those that lack the ability to become established on a particular soil due to mineral deficiencies or toxicities and/or peculiar physical properties.
		Edaphic endemism, on the other hand, is the result of specific physiologic requirements of a taxon being met by a particular geologic formation (Kruckeberg 1984).
		Mason, H.L. The edaphic factor in narrow endemism.
	www.cnps-yerbabuena.org /rare_endemism2.html (667 words)

	MITES - MITE CLASSIFICATION AND HABITS (Site not responding. Last check: 2007-10-15)
		Ascidae are mostly predators in edaphic, subcortical, arboreal, nidicolous and subaquatic habitats.
		Predaceous and saprophagous members of 4 families of tortoise mites occur commonly in edaphic, nidicolous and decaying wood habitats in the Mixedwood Plains (Fig.M-5).
		Species of 4 families are among the most conspicuous mites in litter and edaphic habitats in the Mixedwood Plains (Fig.M-26).
	www.naturewatch.ca /mixedwood/mites/mites2.htm (5177 words)

	Ecology: Edaphic and human effects on landscape-scale distributions of tropical rain forest palms
		Ecology: Edaphic and human effects on landscape-scale distributions of tropical rain forest palms
		Although these ideas are generally recognized by most ecologists, current ecological studies often lack the underpinnings of a clear understanding of the important scales of spatial variation within study sites.
		In the wet tropics a growing number of studies at small-to-large scales within old-growth forest have demonstrated strong effects of edaphic heterogeneity on floristic composition (Ashton 1969, Newbery and Proctor 1984 and cited references, Lescure and Boulet 1985, Lieberman et al.
	www.findarticles.com /p/articles/mi_m2120/is_n8_v76/ai_17848341 (1491 words)

	Helyar--Edaphic constraints to perennial grasses
		Edaphic constraints to perennial grasses: change the plant to suit the soil or vice versa?
		Abstract This paper outlines the main edaphic constraints to the growth of perennial grasses that are likely to be encountered in temperate Australia.
		It is argued that soil management is often the appropriate means of minimising constraints such as nutrient deficiencies.
	www.rsnz.org /publish/nzjar/1994/42.php (280 words)

	3. FOREST RESOURCES
		In percentage terms the reduction in forest area over the last 20 years has been about 0.5 percent per year which is one-half the 1.0 percent per year average of countries of the sub-region during the same period.
		Changes in forest cover that have occurred over the last 20 years are shown in Table 1.2 by forest type.
		Some forest types, such as the edaphic, are in particular danger.
	www.fao.org /DOCREP/W7710E/w7710e04.htm (845 words)

	Tropical Savannas
		Tropical savannas or grasslands are associated with the tropical wet and dry climate type (Koeppen's Aw), but they are not generally considered to be a climatic climax.
		Instead, savannas develop in regions where the climax community should be some form of seasonal forest or woodland, but edaphic conditions or disturbances prevent the establishment of those species of trees associated with the climax community.
		Seasonal forests of the tropics are also widespread and vary along a latitudinal/moisture gradient between the tropical broadleaf evergreen forest of the equatorial zone and the deserts of the subtropics.
	www.runet.edu /~swoodwar/CLASSES/GEOG235/biomes/savanna/savanna.html (1185 words)

	A New High-Resolution National Map of Multivariate Vegetation Ecoregions
		A parallel supercomputer was used to divide the conterminous 48 states of the United States into 1000, 2000, 3000, 5000, and 7000 ecoregions with relatively homogeneous values of elevation, edaphic, and climatic variables using an iterative multivariate clustering technique.
		The resultant national maps objectively capture the ecological patterns of spatial variance in physical, edaphic, and climatic factors relevant for the distribution and growth of plants and animals.
		Assignment of red, green, and blue colors according to the principal component scores associated with the ranges of the nine variables defining each cluster results in a map where the ecological similarity of adjacent cluster regions is readily apparent.
	research.esd.ornl.gov /~hnw/esri98 (3118 words)

	Tropical Resources Institute Home (Site not responding. Last check: 2007-10-15)
		In dry tropical forests, light and soil moisture are thought to act in tandem to regulate seed germination, seedling establishment and survival (Ray and Brown 1995; Gerhardt 1996).
		Further, abrupt discontinuities in edaphic conditions are known to occur in tropical landscapes, influencing local environmental conditions.
		However, there exists little information on the effects of edaphic and topographic factors on plant species’ distributions where the gradient is less extreme.
	www.yale.edu /tri/Fellow2004/Central_America.htm (1135 words)

	FIBRE
		Clarifying the geological history of Amazonia will provide a basis both for understanding the edaphic differences among areas, and for understanding the past and present biogeographical barriers that may have affected speciation processes and species distribution patterns.
		The already analysed part of those data clearly show that different geological formations have different edaphic profiles (thicknesses vary from 3 to 20 m).These edaphic imprints of different formations may in the future be used to explain the paleogeography of certain edaphically specialised plant groups.
		Soil samples were collected to analyse their edaphic patterns within and among them.
	fibre.utu.fi /projects/230.html (1081 words)

	NORSØK - Projects - Biodiversity (Site not responding. Last check: 2007-10-15)
		Biological diversity is on the agenda in several connections, but little has been done in Norway on the diversity of invertebrates in cultivated fields.
		In the development of organic agriculture and in adaptations for sustainable use of biological diversity, a knowledge base must be developed on the epigeic and edaphic invertebrate fauna in Norway.
		The goal of a future project is to document the partly unknown biological values (for Norwegian conditions), increase knowledge about epigeic and edaphic inververtebrates in Norwegian production systems, and to look at the effects of various agricultural practices and management intensities on selected faunal groups (spiders and springtails).
	www.norsok.no /prosjekter/biodiversity.htm (274 words)

	Tundra
		Snowfall is actually advantageous to plant and animal life as it provides an insulating layer on the ground surface.
		Edaphic controls: Permafrost, not cold temperatures per se, is generally believed to be what prevents tree growth.
		Furthermore, freeze-thaw activity, a thin active layer, and solifluction during the warmer months contribute to strong controls on vegetation patterns and create a mosaic of microhabitats and plant communities.
	www.runet.edu /~swoodwar/CLASSES/GEOG235/biomes/tundra/tundra.html (829 words)

	SD : Environment : FAO Land Cover Classification: A Dichotomous, Modular-Hierarchical Approach
		This class is determined by the absence of vegetation, cover, time factor and edaphic condition.
		This class is determined by vegetation, cover, time factor, edaphic condition and artificiality of vegetative cover.
		This class is determined by absence of vegetation, cover, time factor, edaphic condition and artificiality of cover.
	www.fao.org /WAICENT/FAOINFO/SUSTDEV/EIdirect/EIre0019.htm (4781 words)

	UBC BEATY BIODIVERSITY RESEARCH CENTRE - Publications
		WHITTON (2004) Trends in the evolution of edaphic specialists with an example of parallel evolution in the Lasthenia californica complex.
		Rajakaruna, N., G.E. Bradfield, B.A. Bohm and J. (2003) Adaptive differentiation in response to water stress by edaphic races of Lasthenia californica (Asteraceae).
		Rajakaruna, N., B.G. Baldwin, R. Chan, A.M. Desrochers, B.A. Bohm and J. (2003) Edaphic races and phylogenetic taxa in the Lasthenia californica complex (Asteraceae: Heliantheae): an hypothesis of parallel evolution.
	www.zoology.ubc.ca /biodiversity/publications.htm (975 words)

	MSN Encarta - Search Results - edaphic climax
		Climax, arrangement of words, clauses, or sentences in the order of their importance, the least forcible coming first and the others rising in power...
		Although irrigated farming, livestock ranching, and lumbering offer limited economic opportunities within the region, the two major commercial...
		Exclusively for MSN Encarta Premium Subscribers--quickly search thousands of articles from magazines such as Time, Newsweek, The Atlantic Monthly, and Smithsonian.
	encarta.msn.com /edaphic+climax.html (113 words)

	RIVA : Answer to the queries received
		GROWING CORN The main factors which can influence corn development are the following: - External means: climate and edaphic factors.
		EDAPHIC FACTORS Corn can adapt itself to a wide range of edaphic conditions, but it prefers deep soils, of a medium consistency, with a good level of organic matter, well drained but with a good capacity to retain water.
		FODDER Machines are required to simultaneously cut and chop the plants into pieces, and throw them on a hopper.
	www.delariva.com /ing/queries/007.htm (1867 words)

	IngentaConnect The Edaphic Factor in the Origin of Plant Species (Site not responding. Last check: 2007-10-15)
		The study of such edaphically differentiated plants has provided valuable insight to the role of natural selection in evolution.
		This paper discusses several key studies that have appeared in the literature in the last half century emphasizing the role unusual soil conditions—such as those found on serpentinite outcrops, mine tailings, guano deposits, and salt flats—can play in the diversification of plant species.
		Many of these studies have not only shown adaptive differentiation in response to various edaphic features, but have also attempted to examine the link between adaptive traits and traits that are directly responsible for reproductive isolation between the divergent taxa.
	ingentaconnect.com /content/bell/igr/2004/00000046/00000005/art00006 (284 words)

	Influence of cultural practices on edaphic factors related to root disease in Pinus nursery seedlings
		Influence of cultural practices on edaphic factors related to root disease in Pinus nursery seedlings
		Publication: Juzwik, J.; Gust, K.M.; Allmaras, R.R. Influence of cultural practices on edaphic factors related to root disease in Pinus nursery seedlings.
		Abstract: Conifer seedlings grown in bare-root nurseries are frequently damaged and destroyed by soil-borne pathogenic fungi that cause root rot.
	www.ncrs.fs.fed.us /pubs/viewpub.asp?key=2761 (410 words)

	OhioLINK ETD: ATHY, ERIN
		This study was designed to determine survival of various tree seedlings and effects of different mulch types and depths on edaphic properties, germination, and herb emergence on a closed landfill.
		In spring of 2002, five species of hardwood tree seedlings were planted in clustered plots, which received a mulch treatment.
		Leaf mulch (15 cm deep) increased organic matter and modified various edaphic properties after the second growing season.
	rave.ohiolink.edu /etdc/view?acc_num=miami1070486322 (169 words)

	CIHEAM (Site not responding. Last check: 2007-10-15)
		Seed yield is a must for annual self-reseeding legumes to ensure reliable pasture regeneration from year to year.
		In subterranean clover, production of seed is expected to be influenced by the edaphic conditions, also in consideration of the particular morphophysiology of seed set.
		In this study, the effect of the edaphic environment on seed yield and the possible interaction between soil and genotype were assessed by growing a range of genotypes in two soil environments of distinct physical features, i.e., a clay loam and a coarse sandy loam soil.
	www.ciheam.org /util/search/detail_article.php?id=00600222&langue=en (234 words)

	The edaphic factor and patterns of variation in Lasthenia californica (Asteraceae) -- Rajakaruna and Bohm 86 (11): 1576 ...
		The edaphic factor and patterns of variation in Lasthenia californica (Asteraceae) -- Rajakaruna and Bohm 86 (11): 1576 -- American Journal of Botany
		Fiedler, P. 1985 Heavy metal accumulation and the nature of edaphic endemism in the genus Calochortus (Liliaceae).
		Mason, H. 1946a The edaphic factor in narrow endemism.
	www.amjbot.org /cgi/content/full/86/11/1576 (8244 words)

	MONNET ET AL., August 2000 (Site not responding. Last check: 2007-10-15)
		Connoisseurs are able to identify the origin of a certain number of cheeses, which raises the question of whether one can speak of georegions (terroirs) or specific geographical areas as in the case of wine.
		A sensory analysis of 106 cheeses from these 20 cooperatives (summer or winter cheese with 3 or 6 mo of ripening) has demonstrated Comté georegions corresponding to 85% of the edaphic sectors.
		Thus, these sectors are equivalent to cheese georegions that are natural entities represented synthetically by agro-pedological units that have their own vegetation and their own specific type of Comté cheese.
	www.adsa.org /jds/abs/2000/aug1692.htm (235 words)

	Edaphology (Site not responding. Last check: 2007-10-15)
		Edaphology is the science that deals with the influence of soil and other media on the growth of plants.
		The edaphic environment of a turfgrass community may be composed of synthetic materials, native soil, organic residues, or any combination thereof.
		Where combined, these media may form a uniform mixture or occur as distinct layers within the turf-soil profile.
	www.cas.psu.edu /docs/casdept/Turf/Education/Turgeon/Modules/04_Environment/Thatch/IVC_text01.html (58 words)

	Field, Pine and Hardwood (Site not responding. Last check: 2007-10-15)
		Control of Net Ecosystem exchange at an old field, a Pine plantation, and a Hardwood forest under identical climatic and edaphic conditions
		These and additional eco-physiological measurements will be used to parameterize a modified CANVEG model, and a model that deconvolve the sources of respiration, both of which have been tested and performed well in the pine plantation.
		In addition to delivering continuous flux and ancillary data from three vegetation types to CDIAC, we will quantify the response of the three vegetation types to temporal variation in climate and edaphic conditions.
	c-h2oecology.env.duke.edu /Duke-FACE/projpage.cfm?id=32 (228 words)

	Vegetable-growing Principles: Physiographic& Edaphic Factors (Site not responding. Last check: 2007-10-15)
		Mountain summits, slopes, valleys each have different climates and they can differ in a short distance
		Edaphic - soil environment, atmosphere, physical and chemical properties and organisms.
		The soil edaphic factors are altered or manipulated by cultivation, fertilization, irrigation, drainage, and cropping.
	www.lsu.edu /horticulture/4083/class3b/sld024.htm (51 words)

	Yahoo! (Site not responding. Last check: 2007-10-15)
		Zou, C. Methods of predicting sheet and rill erosion on forest land.
		BARNES, P.W., S.R. Edaphic influences on woody plant facilitation and competition in a subtropical savanna
		MCMURTRY, C.R., S.R. and C.B. Structure and distribution of shrub patches in a savanna parkland upland is influenced by argillic horizon development.
	www.geocities.com /chriszou1965/publications.htm (526 words)

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