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Titolo:
AUTOMATIC COUNTING OF COLLEMBOLANS FOR LABORATORY EXPERIMENTS
Autore:
KROGH PH; JOHANSEN K; HOLMSTRUP M;
Indirizzi:
DANISH NATL ENVIRONM RES INST,DEPT TERR ECOL,POB 314,VEJLSOVEJ 25 DK-8600 SILKEBORG DENMARK ROSKILDE LUFTHAVN DK-4000 ROSKILDE DENMARK
Titolo Testata:
Agriculture, ecosystems & environment. Applied soil ecology
fascicolo: 2, volume: 7, anno: 1998,
pagine: 201 - 205
SICI:
0929-1393(1998)7:2<201:ACOCFL>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
IMAGE-ANALYSIS;
Keywords:
DIGITAL IMAGE PROCESSING; IMAGE ANALYSIS; LABORATORY TESTS; REPRODUCTION; COLLEMBOLA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
P.H. Krogh et al., "AUTOMATIC COUNTING OF COLLEMBOLANS FOR LABORATORY EXPERIMENTS", Agriculture, ecosystems & environment. Applied soil ecology, 7(2), 1998, pp. 201-205

Abstract

A new procedure involving digital image processing and image analysisfor determination of the number of individuals and size distribution of a collembolan population is presented. It is applicable to experiments conducted with a single species either on plaster or in soil. Collembolans are transferred to an even, black surface and immobilised by anaesthetisation with carbon dioxide. By scanning the surface with thecollembolans, the number and size of individuals are quantified. In subsequent data treatment steps, adults and clutches of juveniles can be discriminated using an ordination or clustering technique. The method is illustrated by the weekly population development of Folsomia candida Willem in the laboratory. (C) 1998 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:34:14