EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
6/08/2017 | 2:30 PM - 2:45 PM | THE INDEPENDENT AND INTERACTIVE ROLES OF FUNCTIONAL AND PHYLOGENETIC DIVERSITY ON LEAF LITTER BREAKDOWN IN STREAMS | 302C
THE INDEPENDENT AND INTERACTIVE ROLES OF FUNCTIONAL AND PHYLOGENETIC DIVERSITY ON LEAF LITTER BREAKDOWN IN STREAMS
Leaf litter derived from riparian vegetation is a significant resource to aquatic ecosystems and the structure of these communities can greatly influence decomposition in streams. Functional diversity (FD), which defines the distribution of functional traits in a community, has been shown to effectively predict ecosystem function. Phylogenetic diversity (PD), which accounts for evolutionary distinctiveness between species, is understudied in the context of carbon processing. Here using a regional species pool, riparian tree communities were randomly generated and a subset was then chosen reflecting high/low levels of both FD/PD. Leaf litter assemblages were created to reflect species composition in chosen communities and were exposed to three headwater streams in Patapsco State Park (Maryland, USA). Breakdown rates were estimated and then related to FD and PD. Our analysis revealed that breakdown of multi-species assemblages is significantly related to both FD and PD. When the traits known to govern decomposition are integrated, the direction and magnitude of diversity effects can be predicted. Furthermore, these results suggest that the unknown interactions and traits that are encompassed in a dimension such as PD may play an important role in regulating carbon processing in aquatic habitats.
- C31 Organic Matter Processing
- S13 Freshwater protected areas: optimizing conservation of functional and taxonomic biodiversity
- C18 Biodiversity
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Presenters/Authors
April Sparkman
(), University of Maryland, Baltimore Country , asparkm1@umbc.edu;
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Christopher Swan
(), University of Maryland Baltimore County, cmswan@umbc.edu;
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