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Species richness and composition differ in response to landscape and biogeography

Aggemyr, Elsa and Auffret, Alistair G. and Jädergård, Love and Cousins, Sarah A.O. (2018). Species richness and composition differ in response to landscape and biogeography. Landscape ecology. 33 , 2273-2284
[Journal article]

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Abstract

ContextUnderstanding how landscape patterns affect species diversity is of great importance in the fields of biogeography, landscape ecology and conservation planning, but despite the rapid advance in biodiversity analysis, investigations of spatial effects on biodiversity are still largely focused on species richness.ObjectivesWe wanted to know if and how species richness and species composition are differentially driven by the spatial measures dominating studies in landscape ecology and biogeography. As both measures require the same limited presence/absence information, it is important to choose an appropriate diversity measure, as differing results could have important consequences for interpreting ecological processes.MethodsWe recorded plant occurrences on 112 islands in the Baltic archipelago. Species richness and composition were calculated for each island, and the explanatory power of island area and habitat heterogeneity, distance to mainland and structural connectivity at three different landscape sizes were examined.ResultsA total of 354 different plant species were recorded. The influence of landscape variables differed depending on which diversity measure was used. Island area and structural connectivity determined plant species richness, while species composition revealed a more complex pattern, being influenced by island area, habitat heterogeneity and structural connectivity.ConclusionsAlthough both measures require the same basic input data, species composition can reveal more about the ecological processes affecting plant communities in fragmented landscapes than species richness alone. Therefore, we recommend that species community composition should be used as an additional standard measure of diversity for biogeography, landscape ecology and conservation planning.

Authors/Creators:Aggemyr, Elsa and Auffret, Alistair G. and Jädergård, Love and Cousins, Sarah A.O.
Title:Species richness and composition differ in response to landscape and biogeography
Series/Journal:Landscape ecology (0921-2973)
Year of publishing :2018
Volume:33
Page range:2273-2284
Number of Pages:12
Publisher:Springer
ISSN:0921-2973
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Physical Geography
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Archipelago, Baltic Sea, Diversity measure, Island biogeography, Landscape variables, Plants, Species-area relationship, Species composition, Species richness, Structural connectivity
URN:NBN:urn:nbn:se:slu:epsilon-e-5179
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5179
Additional ID:
Type of IDID
DOI10.1007/s10980-018-0742-9
Web of Science (WoS)000451749800015
ID Code:15842
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:18 Jan 2019 11:12
Metadata Last Modified:17 Aug 2020 21:06

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