Results 91 to 100 of about 137,514 (210)

Exposure to creosote bush phenolic resin causes avoidance in the leaf-cutting ant Acromyrmex lobicornis (Formicidae: Attini) La exposición a la resina fenólica de jarilla causa deterrencia en la hormiga cortadora de hojas Acromyrmex lobicornis (Formicidae: Attini)

open access: yesRevista Chilena de Historia Natural, 2012
We focused our study on the effects of Larrea cuneifolia phenolic resin on leaf-cutting ants from two populations (Sierra de las Quijadas National Park and San Roque) of Acromyrmex lobicornis in San Luis, Argentina.
ANA I MEDINA   +2 more
doaj  

Southern Arizona riparian habitat: Spatial distribution and analysis [PDF]

open access: yes
The objectives of this study were centered around the demonstration of remote sensing as an inventory tool and researching the multiple uses of riparian vegetation.
Foster, K. E.   +2 more
core   +1 more source

Shifts in Vegetation Cover of Southern California Deserts in Response to Recent Climate Variations [PDF]

open access: yes
In the deserts of Southern California, air temperatures have been rising and precipitation variability has been increasing over the past several decades.
Potter, Christopher
core   +1 more source

Bioactive Terpenoids from Desert Shrubs for Durable Wood Protection: Chemistry, Delivery Systems, and Circular Bioresource Integration

open access: yesBioResources
The demand for low-toxicity wood protectants is accelerating the search for plant-derived alternatives. Terpenoids from desert-adapted shrubs combine antimicrobial, insecticidal, hydrophobic, and photoprotective functions yet remain underused in wood ...
Queen Aguma   +6 more
doaj  

Effects of natural phenolic compounds from a desert dominant shrub Larrea divaricata Cav. on toxicity and survival in mice Efectos de los compuestos fenólicos naturales de un arbusto dominante del desierto, Larrea divaricata Cav. sobre la toxicidad y sobrevida en ratones

open access: yesRevista Chilena de Historia Natural, 2008
It is known that generalist herbivores may circumvent intoxication by ingesting small quantities from a mixture of plant secondary metabolites. However a single chemical, a highly toxic one or the most abundant in the mixture could cause toxicity ...
J.M. RÍOS, A.M. MANGIONE, J.C. GIANELLO
doaj  

Large scale 20mm photography for range resources analysis in the Western United States [PDF]

open access: yes
Large scale 70mm aerial photography is a valuable supplementary tool for rangeland studies. A wide assortment of applications were developed varying from vegetation mapping to assessing environmental impact on rangelands.
Tueller, P. T.
core   +1 more source

Pesticide Use on Fruit and Vegetable Crops in Ohio 1990 [PDF]

open access: yes, 1992
PDF pages ...
Etzkorn, David S.   +2 more
core  

Effect of extraction solvents on the content of bioactivecompounds from Larrea tridentata leaves [PDF]

open access: yes, 2011
Three organic solvents (methanol, ethanol, and acetone) at four different concentrations (90, 70, 50, and 30% v/v) were used for extraction of hormone-like phenolic compounds (phytoestrogens) from Larrea tridentata leaves, namely ...
Aguilar, Cristóbal N.   +3 more
core  

The feasibility of inventorying native vegetation and related resources form space photography [PDF]

open access: yes
Photointerpretation of Gemini 4 photographs for inventorying native ...
Garcia-Moya, E.   +2 more
core   +1 more source

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