NDLI: Palaeoclimatic applications of large databases: developing and testing methods of palaeotemperature reconstruction using nonmarine ostracods

Content Provider	Springer Nature Link
Author	Horne, David J. Mezquita, Francesc
Copyright Year	2008
Abstract	Non-analogue methods for Quaternary palaeoclimatic reconstruction, such as the coleopteran Mutual Climate Range method and the Mutual Ostracod Temperature Range (MOTR) method, use large geographical databases combined with modern climate datasets to establish the modern climate/temperature ranges of species, which can then be applied to the interpretation of fossil assemblages. Such approaches have been criticized for their lack of attention to variation in the distributions of species within their climate ranges. The MOTR method, for example, assumes that a species has an equal probability of occurring anywhere within its temperature range (e.g. mean July air temperature range), but tests using calculated averages of all records (as opposed to just the two end-points that define the range) show this to be false. The MOTR method remains valid, nevertheless, as long as it is only used to estimate the temperature ranges within which a fossil assemblage could have existed. Analyses of the distributions of 65 species within European climate space show that most are not normal, but often skewed and sometimes polymodal. The factors influencing such variations are discussed and consideration is given to ways of taking them into account in palaeotemperature estimations based on ostracod assemblages. A revised calibration table is presented, showing the modern air temperature ranges of 65 species, for use with the MOTR method.
Starting Page	93
Ending Page	112
Page Count	20
File Format	PDF
ISSN	00372110
Journal	Palaeobiodiversity and Palaeoenvironments
Volume Number	88
Issue Number	1
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Europe nonmarine Ostracoda Geographical Information System palaeoclimate air temperature Paleontology Biodiversity Animal Systematics/Taxonomy/Biogeography Plant Systematics/Taxonomy/Biogeography Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Paleontology

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