Organic matter accumulation following<i>Pinus mugo</i>Turra establishment in subalpine pastures

Dirnböck, Thomas; Dullinger, Stefan; Kock, R.A.

doi:10.1080/17550870802260715

Cited by 7 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, few studies have analysed mountain pine growth dynamics of the sub‐alpine belt and, again, all were conducted in the alpine environment (Dirnböck et al. ; Lingua et al. ), in particular for geomorphological studies (Santilli & Pelfini ; Pelfini et al.…”

Section: Discussionmentioning

confidence: 99%

Warming‐related growth responses at the southern limit distribution of mountain pine (Pinus mugo Turra subsp. mugo)

Palombo

Battipaglia

Cherubini

et al. 2013

J Vegetation Science

View full text Add to dashboard Cite

Questions: Could mountain pine (Pinus mugo Turra subsp. mugo) located above the timberline and at the southern limit of its potential geographic distribution be a promising species to monitor climatic change in specific environments such as the Mediterranean mountains? Does mountain pine krummholz upward expansion result from current climate change? Has the relationship between climate and tree ring growth of mountain pine changed? To what extent does climatic variability affect tree ring growth? Could mountain pine upward expansion contribute to loss of biodiversity in the undisturbed tree line ecotone on the Majella massif? Location:Methods: Dendroclimatological analysis was performed to examine the relationship between tree rings of mountain pine and climatic parameters at the tree line. Climate-growth relationships were analysed using correlation function (CF) analysis and moving CF (MCF). Results:In the Majella massif, climate variables affected mountain pine tree growth at the tree line ecotone. Significant correlations were found with spring temperatures and summer precipitation. Essentially, three months played a key role in mountain pine growth: April and May of the current year and October of the previous year. MCF showed that mountain pine is a sensitive species, in terms of tree ring growth. Conclusions: Growing above the limit of tree vegetation, mountain pine proved to be a promising species for monitoring climate-and land use-driven influences over tree ring growth at high elevations. Our results show that mountain pine is particularly sensitive to climate at the beginning and at the end of the growing season.

show abstract

Section: Discussionmentioning

confidence: 99%

Warming‐related growth responses at the southern limit distribution of mountain pine (Pinus mugo Turra subsp. mugo)

Palombo

Battipaglia

Cherubini

et al. 2013

J Vegetation Science

View full text Add to dashboard Cite

show abstract

“…populations have started expanding into higher elevations in response to decreased grazing pressures and climate warming (Ozenda, 1988; Camarero et al. , 2005; Dirnböck et al. , 2008).…”

Section: Introductionmentioning

confidence: 99%

“…In the last few decades, P. mugo s.l. populations have started expanding into higher elevations in response to decreased grazing pressures and climate warming (Ozenda, 1988;Camarero et al, 2005;Dirnböck et al, 2008). Upslope migration is also observed in species that occur in the subalpine vegetation belt below, and occasionally in sympatry with P. mugo s.l., such as P. sylvestris and the more shade-tolerant Picea abies (Ozenda, 1988;Camarero et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Geography determines genetic relationships between species of mountain pine (Pinus mugo complex) in western Europe

Heuertz

Teufel

González‐Martínez³

et al. 2010

Journal of Biogeography

View full text Add to dashboard Cite

Aim Our aims were to test whether morphological species of mountain pines were genetically supported in the western part of the distribution range of the Pinus mugo species complex (Pinus mugo Turra sensu lato), to resolve genetically homogeneous clusters of populations, to determine historical demographic processes, and to assess the potential hybridization of mountain pines with Scots pine, Pinus sylvestris L.Location Populations were sampled in the Iberian System, the Pyrenees, the French Mont Ventoux, Vosges and Jura mountains, the Germán Black Forest and throughout the Alps. This corresponded to a range-wide sampling for mountain pine sensu stricto (Pinus uncinata Ram.) and to a sampling of the western parts of the ranges of dwarf mountain pine (Pinus mugo Turra sensu stricto) and bog pine/peatbog pine [Pinus rotundata Lmk/Pinus X pseudopumilio (Willk.) Beck].Methods In total, 786 individuáis of P. mugo sensu lato from 29 natural populations, and 85 individuáis of P. sylvestris from four natural populations were genotyped at three chloroplast microsatellites (cpSSRs). Populations were characterized for standard genetic diversity statistics and signs of demographic expansión. Genetic structure was explored using analysis of molecular variance, differentiation statistics and Bayesian analysis of population structure (BAPS).ResuIts One hundred haplotypes were identified in P. mugo sensu lato. There was a strongerdifferentiationbetweengeographicalregionsthanbetweenmorphologically identified taxa (P. mugo sensu stricto, P. uncinata and P. rotundata/P. X pseudopumilio). Overall genetic differentiation was weak (G S T = 0.070) and displayed a clear phylogeographic structure [N S r = 0.263, N S r > N S r (permuted), P < 0.001 ]. BAPS identified a Pyrenean and an Alpine gene pool, along with several smaller genetic clusters corresponding to peripheral populations. Main conclusionsThe core regions of the Pyrenees and Alps were probably recolonized, respectivelybyP. uncinata and P. uncinatalP. mugo sensu stricto, from múltiple glacial refugia that were well connected by pollen flow within the mountain chains. Pinus rotundata/P. X pseudopumilio populations from the Black Forest, Vosges and Jura mountains were probably recolonized from various glacial populations that kept their genetic distinctiveness despite late glacial and early Holocene expansión. Marginal P. uncinata populations from the Iberian System are compatible with elevational shifts and long-term isolation. The causes of haplotype sharing between P. mugo sensu lato and P. sylvestris require further research.

show abstract

“…Decreasing management intensity causes spatial variation in the soil chemical properties accompanied by vegetation succession [2]. Plant succession first involves early annual plants which are then replaced by perennial communities including shrubs [3,4]. Plant communities dominated by single or a few species may be formed due to changes in resource availability [5].…”

Section: Introductionmentioning

confidence: 99%

Shift of Dominant Species in Plant Community and Soil Chemical Properties Shape Soil Bacterial Community Characteristics and Putative Functions: A Case Study on Topographic Variation in a Mountain Pasture

Kim

et al. 2021

Microorganisms

View full text Add to dashboard Cite

Reducing management intensity according to the topography of pastures can change the dominant plant species from sown forages to weeds. It is unclear how changes in species dominance in plant community drive spatial variation in soil bacterial community characteristics and functions in association with edaphic condition. Analysing separately the effects of both plant communities and soil chemical properties on bacterial community is crucial for understanding the biogeographic process at a small scale. In this paper, we investigated soil bacterial responses in five plant communities (two forage and three weed), where >65% of the coverage was by one or two species. The structure and composition of the bacterial communities in the different microbiome were analysed using sequencing and their characteristics were assessed using the Functional Annotation of Prokaryotic Taxa (FAPROTAX) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Firmicutes and Planctomycetes responded only to one specific plant community, and each plant community harboured unique operational taxonomic units (OTUs) at the species level. There were a large percentage of uniquely absent OTUs for specific plant communities, suggesting that a negative effect is critical in the relationship between plants and bacteria. Bacterial diversity indices were influenced more by soil chemical properties than by plant communities. Some putative functions related to C and N recycling including nitrogen fixation were correlated with pH, electrical conductivity (EC) and nutrient levels, and this also implied that some biological functions, such as ureolysis and carbon metabolism, may decline when fertilisation intensity is reduced. Taken together, these results suggest that a shift of dominant species in plant community exerts individual effects on the bacterial community composition, which is different from the effect of soil chemical properties.

show abstract

Organic matter accumulation followingPinus mugoTurra establishment in subalpine pastures

Cited by 7 publications

References 18 publications

Warming‐related growth responses at the southern limit distribution of mountain pine (Pinus mugo Turra subsp. mugo)

Warming‐related growth responses at the southern limit distribution of mountain pine (Pinus mugo Turra subsp. mugo)

Geography determines genetic relationships between species of mountain pine (Pinus mugo complex) in western Europe

Shift of Dominant Species in Plant Community and Soil Chemical Properties Shape Soil Bacterial Community Characteristics and Putative Functions: A Case Study on Topographic Variation in a Mountain Pasture

Contact Info

Product

Resources

About