Dictionary definition: abundance

Article: Detection and Monitoring of Invasive Exotic Plants: A Comparison ...
Northeastern Naturalist;  April 1, 2007 ;     700+ words ... ... vegetation change. Four sampling methods (systematic plot ... estimates of species abundances and diversity. An ... one that is rare in abundance compared to other species ... species' relative abundance over time. The goal ... and their relative abundance, with particular interest ...

Article: Sampling methods to estimate foliage and other ...
Ecology;  June 1, 1995 ;     700+ words ... ... trees, is desired. We present two-stage and three-stage sampling methods that unbiasedly estimate this aggregate quantity. The region ... the validity of the underlying model and the quality and abundance of the data to which it is fitted. Moreover, if the model ...

Article: Effectiveness of two sampling methods used for ...
European Journal of Entomology;  October 20, 2008 ;     700+ words ... ... both trapping methods differed, especially in the relative abundance of the most common species. When compiling an inventory of ... paper are (1) to compare the effectiveness, in terms of abundance, species richness and sex ratio, of two traps commonly used ...

Article: Comparing power among three sampling methods for ...
Canadian Journal of Forest Research;  January 1, 2008 ;     700+ words ... ... ability to reliably estimate changes in species richness, plant abundance, and overstory basal area and composition. Methods include ... lacked sufficient enough power to detect a 20% change in the abundance of most individual species. All three methods had high power ...

Article: Population survey sampling methods in a rural ...
Population Health Metrics;  May 20, 2008 ;     700+ words ... ... practice' guidelines as to which survey sampling methods give the most representative samples ... understanding of the implications of sampling methods may be relevant to all survey methods ... necessarily follow, however, that sampling methods are selected to suit the ultimate ...

Article: Surface sampling methods for bacillus anthracis ...
Emerging Infectious Diseases;  October 1, 2002 ;     700+ words ... ... compare the relative effectiveness of sampling methods used for collecting spores from contaminated ... how the different types of surface sampling methods compare, and how effectively the sampling methods collect spores from contaminated surfaces ...

Article: Sampling methods for Myllocerus undecimpustulatus ...
Florida Entomologist;  June 1, 2009 ;     700+ words ... ... captures in the same trees with other sampling methods including beat samples, Lindgren ... used to test the relationships among sampling methods (Proc Corr, SAS Institute 2000 ... was no correlation between these 2 sampling methods (r = 0.11037, n = 165, P = 0 ...