ecological ranges

Listing 1 - 10 from 43 for ecological ranges

ETHNOBOTANY OF WILD PLANT FOODS
... archaeobotany, as suggested by its (largely) American synonym, 'palaeoethnobotany'. As an area with ecological and floristic similarities to Europe, North America is a particularly useful source of ... . The US Govt.'s Agricultural Research Service has five searchable databases, on plant ecological ranges, worldwide plant uses, Native American food plants, medicinal plants of Native America, and ...
www.ucl.ac.uk

Lab VIII - Medullosans and Cycads (3)
... . Virtually all extant genera have restricted geographical ranges, which reflect both relict and endemic distributions. Cycads have a variety of ecological ranges; they occur as understory plants in tropical and subtropical rain forests, or thrive in dry, low nutrient regions. Yet despite their broad geographic and ecological ranges, it ...
www.ucmp.berkeley.edu

EXTOXNET PIP - 2,4-D
... is of slight to moderate toxicity. The oral LD50 of 2,4-D ranges from 375 to 666 mg/kg in the rat, 370 mg/kg in ... birth to maturity had very low levels of the compound in eggs [7]. Ecological Effects: Effects on birds: 2,4-D is slightly toxic to wildfowl and ... highly toxic to fish while others are less so. For example, the LC50 ranges between 1.0 and 100 mg/L in cutthroat trout, depending on the ...
extoxnet.orst.edu

EXTOXNET PIP - 4-AMINOPYRIDINE
... . Birds killed with Aritrol are not poisonous to predators [8,30]. Ecological Effects: Effects on birds: 4-Aminopyridine is highly toxic to birds. ... fish. Fish become increasingly sensitive with increased exposure [167]. The LC50 ranges from 4 mg/L (in soft water) to 2.43 mg/L ... [167]. The half-life of 4-aminopyridine in soil with oxygen ranges from 3 months in clay soil to 32 months in sandy-loam ...
extoxnet.orst.edu More from this site

FLORA OF NORTH AMERICA - Volume 1, Chapter 1
... effects of these factors on plant distribution are described in ecological and biogeographical treatises (e.g., S.Tuhkanen 1980; E.O ... cool summers and mild winters, characterized by small annual ranges in temperature and adequate precipitation. Such climates, which are ... precipitations on the windward side of the ranges, most notably the Coastal Ranges, and leaves a rain shadow on the leeward ...
hua.huh.harvard.edu

Loxogrammaceae [First Draft]
... America, one in Pacific Islands, 4 in Africa. 12 in China, south of the Tsinling ranges. Epiphytic or epilithic in wet forests, Holttum (1955) suggests the lack of articulation causes the ... -500 m. Similar to L. chinensis in characters of scales and spores, might be an ecological form of the latter. SE. Yunnan, S. Guizhou [N. Vietnam].      ...
hua.huh.harvard.edu More from this site

FPHG -
... material. Accurate species identification is essential because of differences in nematode life habits, host ranges, and pathogenic effects on various host plants. Distribution data are also important for determining ... exists, control measures will be easier to execute. The biology of the nematode, its ecological relationships, its methods of spread, the value of the host crop, and the cultural ...
ssfruit.cas.psu.edu

Jepson Herbarium: Obituary of Willis Linn Jepson (1867-1946)
... owes its great merit to the wealth of field observation, ecological and geographical data, profuse illustration, and careful documentation of observations and ranges by citation of specimens, as well as to the ...
ucjeps.berkeley.edu

Stinking Flowers
... are pollinated by fungus gnats. A Dutchman's pipe (Aristolochia californica) native to the Coast Ranges of Central and Northern California, and the foothills of the Sierra Nevada. The bizarre ... Indonesia and Malaysia have begun to recognize the marketable curiosity value of this plant and ecological preserves are being established. See A Tetrastigma Vine Naturalized In The Hawaiian Islands The ...
waynesword.palomar.edu

Learn- Kids
... a special emphasis on environmentally sustainable gardening practices. Its target audience ranges from gardening enthusiasts to horticulture students to professional landscape designers. ... American Horticulturist, Better Homes & Gardens, Biodiversity & Conservation, Carolina Gardener, Community Gardener, Ecological Landscaper, Gardener for the Prairies, Journal of Environmental Horticulture, Journal ...
www.alaskabg.org

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