About: Plant trait characteristics vary with size and eutrophication in European lowland streams

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About: Plant trait characteristics vary with size and eutrophication in European lowland streams Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Plant trait characteristics vary with size and eutrophication in European lowland streams
Creator	Birk, Sebastian Friberg, Nikolai Larsen, Søren Riis, Tenna Baattrup-Pedersen, Annette G€ Othe, Emma O'hare, Matthew
Source	PMC
abstract	1. Previous studies investigating community‐level relationships between plant functional trait characteristics and stream environmental characteristics remain scarce. Here, we used community‐weighted means to identify how plant traits link to lowland stream typology and how agricultural intensity in the catchment affects trait composition. 2. We analysed plant trait characteristics in 772 European lowland streams to test the following two hypotheses: (i) trait characteristics differ between plant communities in small and medium‐sized streams, reflecting adaptations to different habitat characteristics, and (ii) trait characteristics vary with the intensity of agricultural land use in the stream catchment, mediated either directly by an increase in productive species or indirectly by an increase in species that efficiently intercept and utilize light. 3. We found that the communities in small streams were characterized by a higher abundance of light‐demanding species growing from single apical meristems, reproducing by seeds and rooted to the bottom with floating and/or heterophyllous leaves, whereas the community in medium‐sized streams was characterized by a higher abundance of productive species growing from multi‐apical and basal growth meristems forming large canopies. 4. We also found indications that community trait characteristics were affected by eutrophication. We did not find enhanced abundance of productive species with an increasing proportion of agriculture in the catchments. Instead, we found an increase in the abundance of species growing from apical and multi‐apical growth meristems as well as in the abundance of species tolerant of low light availability. The increase in the abundance of species possessing these traits likely reflects different strategies to obtain greater efficiency in light interception and utilization in nutrient‐enriched environments. 5. Synthesis and applications. Our findings challenge the general assumption of the EU Water Framework Directive compliant assessment systems that plant community patterns in streams reflect the nutrient preference of the community. Instead, light availability and the ability to improve interception and utilization appeared to be of key importance for community composition in agricultural lowland streams. We therefore suggest moving from existing approaches building on species‐specific preference values for nutrients to determine the level of nutrient impairment to trait‐based approaches that provide insight into the biological mechanisms underlying the changes. We recommend that existing systems are critically appraised in the context of the findings of this study.
has issue date	2015-08-21(xsd:dateTime)
bibo:doi	10.1111/1365-2664.12509
has license	no-cc
sha1sum (hex)	b6a4e717f7accc1cbf1005f8d25bbb4df66c47cb
schema:url	https://doi.org/10.1111/1365-2664.12509
resource representing a document's title	Plant trait characteristics vary with size and eutrophication in European lowland streams
has PubMed Central identifier	PMC7166906
schema:publication	J Appl Ecol
resource representing a document's body	covid:b6a4e717f7accc1cbf1005f8d25bbb4df66c47cb#body_text
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