Results 141 to 150 of about 89,281 (353)
Cellulase and Chitinase of Earthworms
LITTLE is known of the digestive enzymes of the earthworm. The presence of protease, amylase and lipase has been reported in the gut contents in isolated instances. Since up to 10 per cent of the top four inches of soil in grassland may pass through the intestines of worms in a year1, their digestive abilities are of a relevance to transformation of ...
openaire +3 more sources
ABSTRACT Butylparaben (BuP) recurrently contaminates soils worldwide, mainly by incorporating sewage sludge into cultivated areas, using wastewater in irrigation, and leaching contaminated soils. However, there are few studies on the ecotoxicological effects of this paraben on edaphic organisms.
Lorena Maihury Santos Tsubouchi +13 more
wiley +1 more source
Do Wolves Protect Forests? Investigating the Link Between Wolf Density, Deer Browse, and Plant Recovery. [PDF]
We planted white oak (Quercus alba), red oak (Quercus rubra), and zigzag goldenrod (Solidago flexicaulis) seedlings across a gradient of wolf density and residence time in northern Wisconsin and recorded deer browse and frequency of 11 common understory plants at each site.
Brice EM +3 more
europepmc +2 more sources
The free energy of biomembrane and nerve excitation and the role of anesthetics
In the electromechanical theory of nerve stimulation, the nerve impulse consists of a traveling region of solid membrane in a liquid environment. Therefore, the free energy necessary to stimulate a pulse is directly related to the free energy difference ...
Heimburg, Thomas +3 more
core +1 more source
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo +6 more
wiley +1 more source
Promotion of leaf degradation by earthworms under laboratory conditions [PDF]
Organic materials were applied to leaves from organic apple trees. Then, leaves were fed to earthworms in a laboratory culture. The objective was to select materials which promote leaf degradation by earthworms and consequently reduce the inoculum ...
de Jager, Anton +2 more
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PurposeThe purpose of the study is to evaluate the effect of different animal product wastes and plant compost on survival and growth of earthworm (Eisenia fetida).MethodsThe study is realized in a vermibin for a duration of 90 days.
D. S. J. V. Vodounnou +4 more
semanticscholar +1 more source
Raccoon dogs Nyctereutes procyonoides are on the List of National Key Protected Wild Animals as Grade II in China; research on their wild populations is limited despite their conservation significance. In this context, we focused on seasonal activity changes from autumn to winter and their relationship to environmental and mammalian factors.
Keisuke Miyamoto +2 more
wiley +1 more source
Complex taxonomy and global phylogeography of the well-known tropical earthworm Pontoscolex corethrurus [PDF]
Few earthworm species are peregrine and among them, Pontoscolex corethrurus is the most well-known. Probably native from the Guyana shield, this earthworm is nowadays distributed worldwide, in the tropical and sub-tropical zones.
Anderson, F. +19 more
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