Results 21 to 30 of about 1,567,635 (316)
Assemblages of herb-dwelling spiders (Araneae) of various steppe types in Ukraine and the Central Chernozem region of Russia [PDF]
A total of 107 spider species from 15 families were recorded in the herbaceous vegetation of the steppe ecosystems of Ukraine and the Central Chernozem region of Russia. Araneidae, Thomisidae, Salticidae and Theridiidae were the most species-rich.
Polchaninova, Nina Y.
core +2 more sources
Defoliation-induced changes in foliage quality may trigger broad-scale insect outbreaks
Progression of a spruce budworm outbreak over seven years is associated with increased soil nutrient fluxes and availability and improved foliage quality in surviving host trees. This could create a bottom-up feedback that sustains an insect outbreak.
Louis De Grandpré +9 more
doaj +1 more source
The endemic pine, Pinus canariensis, forms one of the main forest ecosystems in the Canary Islands. In this archipelago, pine forest is a mosaic of natural stands (remnants of past forest overexploitation) and artificial stands planted from the 1940's ...
Adams +34 more
core +4 more sources
Horizontal structure of forest stands largely affects the competitive relationships between tree individuals and plays a significant role in the stand dynamics.
D. Bulušek +5 more
doaj +1 more source
LAND USE CHANGES AND FLORAL DIVERSITY IN KENYA’S MT. ELGON FOREST ECOSYSTEM
Background. Montane forests encompass spectacular landscapes, a wide variety of ecosystems, a great diversity of species, and distinctive human communities. Mountain forests support about one quarter of world’s terrestrial biodiversity and include nearly
Nelly Nambande Masayi +2 more
doaj +1 more source
Age and sex-selective predation moderate the overall impact of predators [PDF]
© 2014 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. Acknowledgements: Thanks to J. Reid, S. Redpath, A.
Davison, Martin +6 more
core +5 more sources
Felling technique in logging operation affect both quantity and quality of logs produced. Improperfelling operation may damage the wood in various ways such as splitting, splintering, and breakage. It leaves more wood wastes in the forest.
Wesman Endom
doaj +1 more source
Spiders from Heading Bluegrass (POA Prantensis L.) in Roseau County, Minnesota [PDF]
Northwestern Minnesota is one of the principal producers of Kentucky bluegrass (Poa pratensis L.) seed in the United States. Extensive areas of cropland in Roseau County are devoted to this seed production.
Cutler, Bruce
core +3 more sources
Vegetation Dynamics in Ecuador [PDF]
Global forest cover has suffered a dramatic reduction during recent decades, especially in tropical regions, which is mainly due to human activities caused by enhanced population pressures.
González-Jaramillo, Víctor Hugo
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A comparison of presettlement and modern forest composition along an elevation gradient in central New Hampshire [PDF]
Tree species composition is influenced not only by edaphic and climatic factors but also by natural and human-caused disturbances. To understand interactions among these influences, we compared forest species composition data from the time of European ...
Cogbill, Charles V. +3 more
core +3 more sources

