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Naslov:Patterns of understory community assembly and plant trait-environment relationships in temperate SE European forests
Avtorji:Kermavnar, Janez (Avtor)
Kutnar, Lado (Avtor)
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo SciVie - Gozdarski inštitut Slovenije
Povzetek:We analyzed variation in the functional composition and diversity of understory plant communities across different forest vegetation types in Slovenia. The study area comprises 10 representative forest sites covering broad gradients of environmental conditions (altitude, geology, light availability, soil type and reaction, nutrient availability, soil moisture), stand structural features and community attributes. The mean and variation of the trait values were quantified by community-weighted means and functional dispersion for four key plant functional traits: plant height, seed mass, specific leaf area and leaf dry matter content. At each study site, forest vegetation was surveyed at two different spatial scales (4 and 100 m2 ) in order to infer scale-dependent assembly rules. Patterns of community assembly were tested with a null model approach. We found that both trait means and diversity values responded to conspicuous gradients in environmental conditions and species composition across the studied forests. Our results mainly support the idea of abiotic filtering: more stressful environmental conditions (e.g., high altitude, low soil pH and low nutrient content) were occupied by communities of low functional diversity (trait convergence), which suggests a selective effect for species with traits adapted to such harsh conditions. However, trait convergence was also detected in some more resource-rich forest sites (e.g., low altitude, high soil productivity), most likely due to the presence of competitive understory species with high abundance domination. This could, at least to some extent, indicate the filtering effect of competitive interactions. Overall, we observed weak and inconsistent patterns regarding the impact of spatial scale, suggesting that similar assembly mechanisms are operating at both investigated spatial scales. Our findings contribute to the baseline understanding of the role of both abiotic and biotic constraints in forest community assembly, as evidenced by the non-random patterns in the functional structure of distinct temperate forest understories.
Ključne besede:functional composition, functional diversity, ecological gradients, abiotic filtering, trait convergence, trait divergence, spatial scale, forest ground-layer vegetation, Slovenia
Leto izida:2020
UDK:630*23(045)=111
ISSN pri članku:1424-2818
OceCobissID:517523737 Povezava se odpre v novem oknu
COBISS_ID:5649318 Povezava se odpre v novem oknu
DOI:10.3390/d12030091 Povezava se odpre v novem oknu
Opombe:Nasl. iz nasl. zaslona; Opis vira z dne 26. 3. 2020;
Število ogledov:1107
Število prenosov:750
Datoteke:URL URL - Predstavitvena datoteka, za dostop obiščite https://doi.org/10.3390/d12030091
.pdf PDF - Predstavitvena datoteka, prenos (4,12 MB)
 
Nadgradivo:Diversity
MDPI
 
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je financirano iz projekta

Financer:EC - European Commission
Številka projekta:
Naslov:Forest Focus Programme

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Program financ.:Shema mladega raziskovalca
Številka projekta:10000-18-0404
Naslov:MR

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P4-0107
Naslov:Gozdna biologija, ekologija in tehnologija

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