Population dynamics along a primary succession gradient: do alpine species fit into demographic succession theory?

Marcante, Silvia; Winkler, E.; Erschbamer, Brigitta

doi:10.1093/aob/mcp047

Cited by 71 publications

(68 citation statements)

References 57 publications

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“…Such patterns are conceivable because opportunistic species may establish at low density in highly disturbed areas (Callaway et al, 2002) (i.e., plots with a high level of surface roughness or higher number of pika burrows), leading to a distinctive small-scale mosaic of species across the disturbance gradient (Marcante et al, 2009). Nevertheless, these results were inconsistent in that neither surface roughness nor pika burrows significantly explained variation in species richness and evenness.…”

Section: Life-form Abundance and Species Compositionmentioning

confidence: 99%

Plant Species Richness, Evenness, and Composition along Environmental Gradients in an Alpine Meadow Grazing Ecosystem in Central Tibet, China

Dorji

Moe

Klein

et al. 2014

Arctic, Antarctic, and Alpine Research

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Section: Life-form Abundance and Species Compositionmentioning

confidence: 99%

Plant Species Richness, Evenness, and Composition along Environmental Gradients in an Alpine Meadow Grazing Ecosystem in Central Tibet, China

Dorji

Moe

Klein

et al. 2014

Arctic, Antarctic, and Alpine Research

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“…Seed production and establishment of seedlings can be a rather risky mode of propagation at high altitudes (Bliss 1972;Billings 1974;Marcante et al 2009), which may be even more risky than establishing from bulbils (Winkler et al 2010). Therefore, the higher percentage of pseudoviviparously reproducing plants from higher altitudes may indicate an adaptation to climatic limitations endangering seed recruitment.…”

Section: Evidence For Adaptation Of Reproductionmentioning

confidence: 99%

Adaptation of Poa alpina to altitude and land use in the Swiss Alps

et al. 2011

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Current land use and climate change are prompting questions about the ability of plants to adapt to such environmental change. Therefore, we experimentally addressed plant performance and quantitative-genetic diversity of the common Alpine Meadow Grass Poa alpina. We asked how land use and altitude affect the occurrence of P. alpina in the field and whether its common-garden performance suggests adaptation to conditions at plant origin and differences in quantitative genetic diversity among plant origins. Among 216 candidate grassland sites of different land use and altitude from 12 villages in the Swiss Alps, P. alpina occurred preferentially in fertilized and grazed sites and at higher elevations. In a common garden at 1,500 m asl, we grew two plants of [600 genotypes representing 78 grassland sites. After 2 years, nearly 90% of all plants had reproduced. In agreement with adaptive advantages of vegetative reproduction at higher altitudes, only 23% of reproductive plants from lower altitudes reproduced via vegetative bulbils, but 55% of plants from higher altitudes. In agreement with adaptive advantages of reproduction in grazed sites, allocation to reproductive biomass was higher in plants from grazed grasslands than from mown ones. For 53 grasslands, we also investigated broad-sense heritability H 2 , which was significant for all studied traits and twice as high for grazed as for mown grasslands. Moreover, possibly associated with their higher landscape diversity, H 2 was higher for sites of villages of Romanic cultural tradition than for those of Germanic and Walser traditions. We suggest promoting diverse land use regimes to conserve not only landscape and plant species diversity, but also adaptive genetic differentiation and heritable genetic variation.

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“…Dwarf shrubs such as Salix polaris had well developed root systems and many of them reaches the age of several decades (Buchwał et al 2013). Marcante et al (2009) points out that survival of adult perennials of this type serves as a buffer against temporal variations. This has particular relevance in disturbed habitats as a factor facilitating stabilisation of populations and their increase in size.…”

Section: Discussion Colonisation Potentialmentioning

confidence: 99%

“…The spatial arrangement of vegetation and its structure depends in Ebba Valley on local chronosequence, but it is mainly a result of ecological limits imposed by local environmental conditions and by the destructive disturbances of the environment. The dispersal of other taxa may be a result of poorer tolerance to environmental stress and limitations or lack of safe, stable places, as they are not crucial for germination but are crucial for establishment (Marcante et al 2009). …”

Section: Discussion Colonisation Potentialmentioning

confidence: 99%

Impacts of Geomorphic Disturbances on Plant Colonization in Ebba Valley, Central Spitsbergen, Svalbard

Stawska

2017

Quaestiones Geographicae

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Global warming observed nowadays causes an increase in geomorphic activity in polar regions. Within the areas influenced by cold climatic conditions, relief dynamics and vegetation development are the main landscape shaping processes. The study is limited to the Ebba Valley (78°43'N; 16°37'E) in central Spitsbergen (Svalbard), where geomorphologic observations and vegetation sampling were conducted in 2007. The valley was divided into three zones differentiated by dominating geomorphic activity and stability of deposits. The settlement and the evolution of plant cover have been documented there. The main factors that control well developed vegetation cover within raised marine terraces are frost heave and solifluction. In deeper parts of the valley, aeolian processes dominate and high differentiation of microsite conditions causes high variability in plant coverage. The area close to the Ebba glacier marginal zone is characterized by initial stages of plant colonisation where disturbance to vegetation is mainly caused by hydrological processes.

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Population dynamics along a primary succession gradient: do alpine species fit into demographic succession theory?

Cited by 71 publications

References 57 publications

Plant Species Richness, Evenness, and Composition along Environmental Gradients in an Alpine Meadow Grazing Ecosystem in Central Tibet, China

Plant Species Richness, Evenness, and Composition along Environmental Gradients in an Alpine Meadow Grazing Ecosystem in Central Tibet, China

Adaptation of Poa alpina to altitude and land use in the Swiss Alps

Impacts of Geomorphic Disturbances on Plant Colonization in Ebba Valley, Central Spitsbergen, Svalbard

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