Methods relieving comparison of living and death assemblages
- Author(s)
- Johann Hohenegger, Maria Virgínia Alves Martins, Fabrizio Frontalini
- Abstract
Living (LAs) and death assemblages (DAs) from the same samples (sites) can be compared based on total densities, species densities, species richness and heterogeneity (evenness). Preferably densities (standing crop), obtained by normalization of absolute frequencies to unit sample size, should be used to compare samples, especially for LAs. Combinations of the above four characteristics enable a better insight into the relations between LAs and DAs. The 'IncorporationValue'weighs the proportions of living individuals on total individual numberswith similarities in species composition between both assemblages, yielding the instantaneous integration grade of living individuals into the death assemblage. Diversity diagrams based on species richness (abscissa) and heterogeneities (ordinate), standardized over all investigated samples, simultaneously characterize differences in diversities. The standardized vector between LA andDAin the above-mentioned coordinate system characterizes differences in species richness and heterogeneity in a combinedmanner, where all coefficients of species richness and heterogeneities can be used.
- Organisation(s)
- Department of Palaeontology
- External organisation(s)
- University of Aveiro, Università degli Studi di Urbino "Carlo Bo", Universidade do Estado do Rio de Janeiro
- Journal
- Micropaleontology
- Volume
- 64
- Pages
- 255-267
- No. of pages
- 12
- ISSN
- 0026-2803
- Publication date
- 2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 106026 Ecosystem research, 105118 Palaeontology
- Keywords
- ASJC Scopus subject areas
- Palaeontology
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/555dc008-d9da-4bf7-85c6-228bde9813e4