Search Results - (Author, Cooperation:D. Ratkowsky)
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1Latest Papers from Table of Contents or Articles in PressL. Tedersoo ; M. Bahram ; S. Polme ; U. Koljalg ; N. S. Yorou ; R. Wijesundera ; L. Villarreal Ruiz ; A. M. Vasco-Palacios ; P. Q. Thu ; A. Suija ; M. E. Smith ; C. Sharp ; E. Saluveer ; A. Saitta ; M. Rosas ; T. Riit ; D. Ratkowsky ; K. Pritsch ; K. Poldmaa ; M. Piepenbring ; C. Phosri ; M. Peterson ; K. Parts ; K. Partel ; E. Otsing ; E. Nouhra ; A. L. Njouonkou ; R. H. Nilsson ; L. N. Morgado ; J. Mayor ; T. W. May ; L. Majuakim ; D. J. Lodge ; S. S. Lee ; K. H. Larsson ; P. Kohout ; K. Hosaka ; I. Hiiesalu ; T. W. Henkel ; H. Harend ; L. D. Guo ; A. Greslebin ; G. Grelet ; J. Geml ; G. Gates ; W. Dunstan ; C. Dunk ; R. Drenkhan ; J. Dearnaley ; A. De Kesel ; T. Dang ; X. Chen ; F. Buegger ; F. Q. Brearley ; G. Bonito ; S. Anslan ; S. Abell ; K. Abarenkov
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-11-29Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: DNA Barcoding, Taxonomic ; Forests ; Fungi/*classification/genetics/*physiology ; Geography ; Grassland ; *Soil ; *Soil Microbiology ; TundraPublished by: -
2Articles: DFG German National LicensesJohnson, C. R. ; Ratkowsky, D. A. ; White, R. W. G.
Oxford, UK : Blackwell Publishing Ltd
Published 1983Staff ViewISSN: 1095-8649Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: The 10 species of Galaxias in Tasmania, G. olidus from mainland Australia and the four species of Paragalaxias were studied using principal co-ordinates analysis (PCOA) and cluster analysis of a standardized Euclidean distance matrix based upon variate means, and by canonical variate analysis (CVA) conducted as a stepwise multiple discriminant analysis. Thirty-five variables comprising 30 morphometric and five meristic characters were analysed. The meristic characters were not included in the CVA. Excellent separation of the two genera was achieved in all analyses. The multivariate analyses were repeated on each genus separately to see if relationships suggested by the overall analysis remain stable. When the resultant groupings of species are compared for the different analyses, no consistent, distinct groupings of species within each genus are apparent. Despite the absence of distinct groupings, some trends in the affinities of some species are evident. In particular, species affinities as indicated by the CVA are more consistent with established opinions of species relationships. From the results of the study it is suggested that caution be exercised in the application of multivariate statistical analyses of morphological data to ichthyological systematics and phylogeny.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 1572-8412Source: Springer Online Journal Archives 1860-2000Topics: Computer ScienceMedia Resources and Communication Sciences, JournalismType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesBeadle, C. L. ; McLeod, D. E. ; Turnbull, C. R. A. ; Ratkowsky, D. A. ; McLeod, R.
Springer
Published 1989Staff ViewISSN: 1432-2285Keywords: Canopy structure ; Growth ; HeteroblastySource: Springer Online Journal Archives 1860-2000Topics: BiologyAgriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Summary Individual trees and stands of two provenances of Eucalyptus nitens which have marked differences in retention of juvenile foliage were studied in four plantations at different elevations. The proportion of juvenile to total foliage and growth was measured at the end of the 2nd, 3rd and 4th year from establishment. Between the ages of 2 and 4 years annual stem volume increment increased in proportion to the amount of juvenile foliage retained. By age 4 years, stem volume of trees of the juvenile persistent form was significantly larger than that of the early adult form. Increasing differences in height growth with age between provenances, which were highly significant across sites by age 4, contributed to these differences in performance. There was some evidence that the largest trees of the juvenile-persistent form were those which combined mature foliage above juvenile foliage for the longest period during the transition from juvenile to mature foliage. In the early-adult form the largest trees were those which completed the transition to mature foliage rapidly. There was no difference in the ratio of foliage mass to basal area between the two forms. It is suggested that the faster growth of the juvenile-persistent form is related to higher leaf area index and not to foliage type. A provenance of E. globulus which had a higher retention of juvenile foliage at age 4 than a second provenance had a lower stem volume, thus indicating that in this species early growth rate is not determined by foliage type.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesBeadle, C. L. ; McLeod, D. E. ; Turnbull, C. R. A. ; Ratkowsky, D. A. ; McLeod, R.
Springer
Published 1989Staff ViewISSN: 1432-2285Keywords: Canopy structure ; Growth ; HeteroblastySource: Springer Online Journal Archives 1860-2000Topics: BiologyAgriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Summary Individual trees and stands of two provenances ofEucalyptus nitens which have marked differences in retention of juvenile foliage were studied in four plantations at different elevations. The proportion of juvenile to total foliage and growth was measured at the end of the 2nd, 3rd and 4th year from establishment. Between the ages of 2 and 4 years annual stem volume increment increased in proportion to the amount of juvenile foliage retained. By age 4 years, stem volume of trees of the juvenile persistent form was significantly larger than that of the early adult form. Increasing differences in height growth with age between provenances, which were highly significant across sites by age 4, contributed to these differences in performance. There was some evidence that the largest trees of the juvenile-persistent form were those which combined mature foliage above juvenile foliage for the longest period during the transition from juvenile to mature foliage. In the early-adult form the largest trees were those which completed the transition to mature foliage rapidly. There was no difference in the ratio of foliage mass to basal area between the two forms. It is suggested that the faster growth of the juvenile-persistent form is related to higher leaf area index and not to foliage type. A provenance ofE. globulus which had a higher retention of juvenile foliage at age 4 than a second provenance had a lower stem volume, thus indicating that in this species early growth rate is not determined by foliage type.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0001-1541Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyProcess Engineering, Biotechnology, Nutrition TechnologyAdditional Material: 3 Ill.Type of Medium: Electronic ResourceURL: