A comprehensive analysis of the relationship between temperature and species diversity: The case of planktonic foraminifera
The relationship between temperature ( T ) and species diversity is one of the most fundamental issues in marine diversity. Although their relationships have been discussed for many years, how species diversity is related to T remains a controversial question. Previous studies have identified three...
Published in: | Frontiers in Marine Science |
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Main Authors: | , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Frontiers Media SA
2022
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Subjects: | |
Online Access: | http://dx.doi.org/10.3389/fmars.2022.1069276 https://www.frontiersin.org/articles/10.3389/fmars.2022.1069276/full |
Summary: | The relationship between temperature ( T ) and species diversity is one of the most fundamental issues in marine diversity. Although their relationships have been discussed for many years, how species diversity is related to T remains a controversial question. Previous studies have identified three T –diversity relationships: positive, negative, and unimodal. Recently, the unimodal relationship has received great attention. However, these studies may be biased by (1) considering the insufficient T range of database, (2) using a single diversity metric (generally species richness, S ), and (3) rarely considering species abundance distribution (SAD) that can better represent diversity. Here, to seek a more comprehensive understanding of T –diversity relationships, their relationships are evaluated according to a global planktonic foraminifera dataset, which is usually considered as a model dataset for exploring diversity pattern. Species diversity are estimated by four most commonly used metrics and a new SAD parameter ( p ). Results show that S and Shannon’s index support the typical unimodal relationship with T . However, evenness and dominance do not have significant unimodality. Additionally, this study conjectures that the SAD parameter p with increasing T will gradually approach the minimum 1, noting that SAD ( N r / N 1 , where N r and N 1 are the abundance of the r th and the first species in descending order) tends to be 1:1/2:1/3…. This study suggests that the T –diversity relationship cannot be wholly reflected by S and the other aspects of diversity (especially SAD) should be considered. |
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