Partial congruence in habitat patterns for taxonomic and functional diversity of fish assemblages in seagrass ecosystems

doi:10.1007/s00227-019-3488-2

	Partial congruence in habitat patterns for taxonomic and functional diversity of fish assemblages in seagrass ecosystems
	Wong, Melisa C.; Kay, Lauren M.
刊名	MARINE BIOLOGY
	2019-04
卷号	166 期号:4
ISSN号	0025-3162
DOI	10.1007/s00227-019-3488-2
英文摘要	Marine conservation aims to maintain ecological functioning through the protection of biodiversity, frequently relying on habitat categories as representative surrogates for biodiversity. Habitat biodiversity surrogates typically represent taxonomic diversity, despite species functional traits being more directly linked to ecosystem functioning. Here, we evaluate habitat biodiversity surrogates based on taxonomic and functional diversity of fish assemblages in seagrass ecosystems of Nova Scotia, Canada. We do so by assessing congruence in habitat differences (i.e., seagrass vs adjacent bare soft sediment) between biodiversity components across varying environmental conditions, and also by identifying relationships of fish biodiversity with environmental, habitat, and landscape variables. We found only partial agreement in habitat differences for each biodiversity type, that is, habitat differences in taxonomic diversity were only sometimes reflected by functional diversity. In fact, taxonomic diversity was consistently higher in seagrass than bare sediment, while this was not always the case for functional diversity. Similar functional diversity between habitat types resulted from redundancy in functional traits and consistent expression of dominant traits. Regression analyses indicated that taxonomic diversity was determined by habitat complexity (canopy height, sediment organic content), wave exposure, and seagrass bed size (R-2 similar to 0.60). Functional diversity was determined by habitat complexity (shoot density, canopy height, and sediment organic content) and wave exposure (R-2=0.475), suggesting the importance of environmental filtering in selecting a certain set of functional traits. Our study suggests that multiple biodiversity components combined with knowledge of the environmental context are necessary for optimal use of habitat biodiversity surrogates in conservation planning.
WOS关键词	MORPHOLOGICAL PLASTICITY ; ENVIRONMENTAL-CONDITIONS ; BIODIVERSITY ; TRAITS ; FRAMEWORK ; GRADIENTS ; RICHNESS ; FAUNA ; BEDS ; INVERTEBRATES
WOS研究方向	Marine & Freshwater Biology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000460019600001
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24829]
专题	自然资源部第一海洋研究所
通讯作者	Wong, Melisa C.
作者单位	Fisheries & Oceans Canada, Bedford Inst Oceanog, 1 Challenger Dr, Dartmouth, NS B2Y 4A2, Canada
推荐引用方式 GB/T 7714	Wong, Melisa C.,Kay, Lauren M.. Partial congruence in habitat patterns for taxonomic and functional diversity of fish assemblages in seagrass ecosystems[J]. MARINE BIOLOGY,2019,166(4).
APA	Wong, Melisa C.,&Kay, Lauren M..(2019).Partial congruence in habitat patterns for taxonomic and functional diversity of fish assemblages in seagrass ecosystems.MARINE BIOLOGY,166(4).
MLA	Wong, Melisa C.,et al."Partial congruence in habitat patterns for taxonomic and functional diversity of fish assemblages in seagrass ecosystems".MARINE BIOLOGY 166.4(2019).