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Titolo:
GEOMETRIC APPROXIMATION OF THE INFESTATION OF HONEY-BEE BROOD CELLS BY VARROA-JACOBSONI AND IMPLICATIONS FOR THE ESTIMATION OF BROOD INFESTATION, FOR POPULATION-MODELS AND FOR THE PROPORTION OF NON-SIBLING MATINGS
Autore:
REICH SE; FUCHS S; SCHULZ A; URFER W;
Indirizzi:
UNIV DORTMUND,FACHBEREICH STAT D-44221 DORTMUND GERMANY UNIV FRANKFURT,FACHBEREICH BIOL,INST BIENENKUNDE POLYTECH GESELL D-61440 OBERURSEL GERMANY LANDESANSTALT BIENENZUCHT MAYEN D-56727 MAYEN GERMANY
Titolo Testata:
Journal of Apicultural Research
fascicolo: 2, volume: 37, anno: 1998,
pagine: 115 - 123
SICI:
0021-8839(1998)37:2<115:GAOTIO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
OUD; COLONIES;
Keywords:
VARROA JACOBSONI; MITES; GEOMETRIC DISTRIBUTION; POPULATION DYNAMICS; PROPORTION OF NON-SIBLING MATINGS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
S.E. Reich et al., "GEOMETRIC APPROXIMATION OF THE INFESTATION OF HONEY-BEE BROOD CELLS BY VARROA-JACOBSONI AND IMPLICATIONS FOR THE ESTIMATION OF BROOD INFESTATION, FOR POPULATION-MODELS AND FOR THE PROPORTION OF NON-SIBLING MATINGS", Journal of Apicultural Research, 37(2), 1998, pp. 115-123

Abstract

The parasitic mite Varroa jacobsoni infests the brood cells of its host Apis mellifera and reproduces in them. The distribution of the mites in the brood cells is an important aspect of the parasite's biology,with implications for the estimation of the bee brood infestation andpossible damage to the brood, for models of the dynamics of population growth, and for the degree of outbreeding. We describe a method for estimating the distribution of varroa per cell, i.e. the percentages of brood cells with 0, 1, 2,... mites, by the geometric distribution. Three estimates are presented, each referring to a different sampling method. One is given in detail, the other two just mentioned. We found that the geometric distribution model is applicable to worker brood aswell as the usually more highly infested drone brood, and results in a good fit of the natural distribution of varroa per cell. Based on this estimation, we provide a method to assess the degree of outbreedingby calculating the probabilities of non-sibling matings.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 08:10:29