An ecological survey of Corsican ants based on presence/absence criterion of 71 species, from 234 samples in 189 localities, gived results as follows: - The calculation of frequency index shows that seventeen species are very common, in particular three epigeic species, Aphaenogaster spinosa, Cre...
OrganizationforEconomicDevelopment.Thesurveyassessedtheliteracy,numeracy(计算 能力), and technological competency of more than 160,000adultsfrom31countries.Anditincluded aquestionabouthow many booksparticipants hadintheirhomesduringadolescence.“Whatwe wereabletomakeclearwasthatpeoplegrowing uparound bookshad bett...
Frederic H. WagnerFrederic H. Wagner is Associate Dean of the College of Natural Resources and Professor of Fisheries and Wildlife at Utah State University. During 1998, he is a Fellow of the National Center for Ecological Analysis and Synthesis at Santa Barbara, California...
The idea is that we are taking more out of what you might call the planet's environmental bank balance than it can sustain; we are living beyond our ecological means. 出自-2016年6月阅读原文 Specify in what way their products are green. 出自-2016年6月阅读原文 So what you need to know ...
What is a reforestation stocking survey? Who is affected by biodiversity loss? What is an epidemiological study? What is zonation in ecology? What is ecological research? Who coined the term biodiversity? Who first coined the term biodiversity? What are ecotones in ecology? What is global ecology...
The ecological process is extended even further through time as trees topple over, decay and provide critical habitat as nurse logs or coarse woody debris. In reference to space, the area of an ecosystem can vary greatly from tiny to vast. For example, a single tree is of smaller ...
Published in Chapter: Ecological Validity in Virtual Reality-Based Neuropsychological Assessment; From: Encyclopedia of Information Science and Technology, Third Edition Full Text Chapter Download: US $37.50 Add to Cart Chapter 15 A computer simulation of a real or imaginary system that enables a ...
📚 第1篇 Is technology making people lazy? Recently, the topic of the impact of technology has been brought into focus. According to a recent survey conducted by CCTV, a high proportion of 84.7 percent of people admitted that...
Stanford’s self-proclaimed ecological purism doesn’t mean he believes we should do away with nonnative species altogether, though. In fact, human interference has helped many species worth keeping around. Hummingbirds, for example, stay in L.A. year-round because ...
While green tech has become increasingly popular in the modern age, elements of these business practices have been in use since the Industrial Revolution. Beginning in the early 19th century, scientists began to observe the ecological impacts of coal-burning industrial plants, and manufacturers have ...