Assessment of the minimum sample size required to characterize site-scale airborne pollen

Many palynological investigations require the comparison of large collections of samples and here the optimization of the effort is crucial. A method to determine the pollen sum according to the intrinsic characteristics of the site pollen composition is proposed. Different variables such as pollen...

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Detalles Bibliográficos
Autores principales:	Madanes, Nora, Dadon, José Roberto
Publicado:	1998
Materias:	methodology pollen sampling Bacteria (microorganisms)
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00173134_v37_n4_p239_Madanes http://hdl.handle.net/20.500.12110/paper_00173134_v37_n4_p239_Madanes
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00173134_v37_n4_p239_Madanes
record_format	dspace
spelling	paper:paper_00173134_v37_n4_p239_Madanes2023-06-08T14:39:02Z Assessment of the minimum sample size required to characterize site-scale airborne pollen Madanes, Nora Dadon, José Roberto methodology pollen sampling Bacteria (microorganisms) Many palynological investigations require the comparison of large collections of samples and here the optimization of the effort is crucial. A method to determine the pollen sum according to the intrinsic characteristics of the site pollen composition is proposed. Different variables such as pollen spectra, typological lists, richness, diversity, intra- and inter-sites affinities, are alternatively analyzed in order to determine the minimum sample size and the results are compared. An example of this methodology is developed for the airborne pollen from an agroecosystem in the Pampean grasslands. Increasing pollen counts from 150 to above 2700 does not yield different results among the dominant and subdominant types, which account for 70%-80% of the pollen sum. Both diversity estimates and similarity among sites are not significantly affected when quantitative coefficients are employed. As pollen counts increase, there is an increment in the number of types, but the types added with counts over 150 are always rare, their overall relative frequency never exceeding 6%. The minimum sample size obtained as shown here provides the necessary information to reconstruct the major pollen fraction of the site and it provides reliable estimates of the typologie diversity and the affinities among sites. © 1998 Taylor & Francis Group, LLC. Fil:Madanes, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dadon, J.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1998 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00173134_v37_n4_p239_Madanes http://hdl.handle.net/20.500.12110/paper_00173134_v37_n4_p239_Madanes
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	methodology pollen sampling Bacteria (microorganisms)
spellingShingle	methodology pollen sampling Bacteria (microorganisms) Madanes, Nora Dadon, José Roberto Assessment of the minimum sample size required to characterize site-scale airborne pollen
topic_facet	methodology pollen sampling Bacteria (microorganisms)
description	Many palynological investigations require the comparison of large collections of samples and here the optimization of the effort is crucial. A method to determine the pollen sum according to the intrinsic characteristics of the site pollen composition is proposed. Different variables such as pollen spectra, typological lists, richness, diversity, intra- and inter-sites affinities, are alternatively analyzed in order to determine the minimum sample size and the results are compared. An example of this methodology is developed for the airborne pollen from an agroecosystem in the Pampean grasslands. Increasing pollen counts from 150 to above 2700 does not yield different results among the dominant and subdominant types, which account for 70%-80% of the pollen sum. Both diversity estimates and similarity among sites are not significantly affected when quantitative coefficients are employed. As pollen counts increase, there is an increment in the number of types, but the types added with counts over 150 are always rare, their overall relative frequency never exceeding 6%. The minimum sample size obtained as shown here provides the necessary information to reconstruct the major pollen fraction of the site and it provides reliable estimates of the typologie diversity and the affinities among sites. © 1998 Taylor & Francis Group, LLC.
author	Madanes, Nora Dadon, José Roberto
author_facet	Madanes, Nora Dadon, José Roberto
author_sort	Madanes, Nora
title	Assessment of the minimum sample size required to characterize site-scale airborne pollen
title_short	Assessment of the minimum sample size required to characterize site-scale airborne pollen
title_full	Assessment of the minimum sample size required to characterize site-scale airborne pollen
title_fullStr	Assessment of the minimum sample size required to characterize site-scale airborne pollen
title_full_unstemmed	Assessment of the minimum sample size required to characterize site-scale airborne pollen
title_sort	assessment of the minimum sample size required to characterize site-scale airborne pollen
publishDate	1998
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00173134_v37_n4_p239_Madanes http://hdl.handle.net/20.500.12110/paper_00173134_v37_n4_p239_Madanes
work_keys_str_mv	AT madanesnora assessmentoftheminimumsamplesizerequiredtocharacterizesitescaleairbornepollen AT dadonjoseroberto assessmentoftheminimumsamplesizerequiredtocharacterizesitescaleairbornepollen
_version_	1768545768950464512

Assessment of the minimum sample size required to characterize site-scale airborne pollen

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