No evidence for a role of competitive capabilities of adults in causing habitat segregation of diploid and hexaploid Senecio carniolicus (Asteracaeae)

Hexaploid individuals of Senecio carniolicus (Asteraceae) predominantly occur in dense swards while diploids prevail in open vegetation. We test whether this habitat segregation is due to differential responses to competition. Linear regression models were used to relate biomass and maximum leaf length of adults to vegetation cover within radii of 20 cm around target individuals. Biomass differed between ploidy levels, but was independent from vegetation cover in both cytotypes. Maximum leaf length of diploids increased with vegetation cover, but remained constant in hexaploids. This suggests that at the adult stage diploids respond to increasing competition by changes in plant architecture rather than changes in resource utilization, while hexaploids are unaffected by competition. Consequently, other factors, such as competitive interactions at earlier life stages, likely are responsible for habitat segregation of diploid and hexaploid S. carniolicus.

• Publication year

  2011

• Venue

  Alpine Botany

• Publication date

  2011-08-04

• Fields of study

  Biology, Medicine, Environmental Science

• Identifiers
  DOI 10.1007/s00035-011-0091-7PMID 24348456PMCID 3859894
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• Adult competitive differences are unlikely to explain the habitat segregation of diploid and hexaploid Senecio carniolicus; factors acting earlier in life are a more likely cause.

  Confidence 0.92

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• Adult diploids appear to adjust plant architecture under increasing competition, whereas hexaploids show little adult competitive response.

  Confidence 0.88

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• Maximum leaf length increased with vegetation cover in diploids but stayed constant in hexaploids.

  Confidence 0.99

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• Biomass differed between diploid and hexaploid individuals, but showed no association with vegetation cover in either cytotype.

  Confidence 0.98

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review

• biomass

  trait, measurement

  The mass of adult plants used as a measure of plant size.

  Aliases: plant biomass

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• competition

  ecological interaction, process

  Biotic interaction pressure from neighboring vegetation in the local plant community.

  Aliases: competitive interactions

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• diploid cytotype

  cytotype

  The diploid ploidy level of Senecio carniolicus individuals.

  Aliases: diploids, diploid individuals

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• early life stages

  life stage, developmental stage

  Seedling and juvenile phases that occur before adulthood.

  Aliases: juvenile stages, seedling stages

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• habitat segregation

  ecological pattern

  The contrasting occurrence of diploid and hexaploid individuals in open vegetation and dense swards.

  Aliases: habitat partitioning

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• hexaploid cytotype

  cytotype

  The hexaploid ploidy level of Senecio carniolicus individuals.

  Aliases: hexaploids, hexaploid individuals

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• maximum leaf length

  morphological trait, measurement

  The length of the longest leaf on an adult plant.

  Aliases: leaf length

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• plant architecture

  morphology, trait

  The structural arrangement of leaves and shoots that describes adult plant form.

  Aliases: growth form

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• senecio carniolicus

  species

  The alpine Senecio species examined across diploid and hexaploid individuals.

  Aliases: S. carniolicus

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review
• vegetation cover

  environmental variable, observation

  The proportion of ground covered by surrounding vegetation within a 20 cm radius of target plants.

  Aliases: local vegetation cover, cover

  박진우 (dztg5apj7m) extractionB (s683577b42) reviewJake Seo (Twitter) (bmuzj8twwb) reviewAnonymous (n259mg7uxy) review

• Polyploidy and ecological adaptation in wild yarrow

  2011cited by this paper
• Effects of snowmelt timing and competition on the performance of alpine snowbed plants

  2011cited by this paper
• Experimental Evaluation of Seed Limitation in Alpine Snowbed Plants

  2011cited by this paper
• Bridging global and microregional scales: ploidy distribution in Pilosella echioides (Asteraceae) in central Europe.

  2011cited by this paper
• Counterbalancing effects of competition for resources and facilitation against grazing in alpine snowbed communities

  2010influential reference
• Complex distribution patterns, ecology and coexistence of ploidy levels of Allium oleraceum (Alliaceae) in the Czech Republic.

  2010cited by this paper
• Grassland root communities: species distributions and how they are linked to aboveground abundance.

  2010cited by this paper
• Species recruitment in alpine plant communities: the role of species interactions and productivity

  2010cited by this paper
• Distribution and habitat segregation on different spatial scales among diploid, tetraploid and hexaploid cytotypes of Senecio carniolicus (Asteraceae) in the Eastern Alps

  2010cited by this paper
• Evolutionary consequences of autopolyploidy.

  2010cited by this paper
• Morphologische Differenzierung der sympatrischen de-, tetra- und hexaploiden Zytotypen von Senecio carniolicus s.l. (syn. Jacobaea carniolica, Asteraceae)

  2010cited by this paper
• Postzygotic isolation in the polyploid complexof a high mountain plant (Senecio carniolicus, Asteraceae)

  2010cited by this paper
• Experimental comparison of competition and facilitation in alpine communities varying in productivity

  2009cited by this paper
• Above- and belowground biomass allocation in Tibetan grasslands.

  2009influential reference
• Plants and Vegetation: Origins, Processes, Consequences

  2009cited by this paper
• Polyploidy and angiosperm diversification.

  2009cited by this paper
• The role of hybridization in plant speciation.

  2009cited by this paper
• Habitat differentiation, hybridization and gene flow patterns in mixed populations of diploid and autotetraploid Dactylorhiza maculata s.l. (Orchidaceae)

  2009influential reference
• Ecological segregation drives fine-scale cytotype distribution of Senecio carniolicus in the Eastern Alps.

  2009cited by this paper
• Genomic clues to the evolutionary success of polyploid plants.

  2008cited by this paper
• Effects of climate change on phenology, frost damage, and floral abundance of montane wildflowers.

  2008cited by this paper
• Balance between facilitation and resource competition determines biomass-density relationships in plant populations.

  2008cited by this paper
• Sympatric diploid and hexaploid cytotypes of Senecio carniolicus (Asteraceae) in the Eastern Alps are separated along an altitudinal gradient

  2007cited by this paper
• Plant Speciation

  2007cited by this paper
• Water and nitrogen addition differentially impact plant competition in a native rough fescue grassland

  2007cited by this paper
• The evolutionary consequences of polyploidy.

  2007cited by this paper
• Complex distribution patterns of di-, tetra-, and hexaploid cytotypes in the European high mountain plant Senecio carniolicus (Asteraceae).

  2007cited by this paper
• ECOLOGICAL DIFFERENTIATION AND DIPLOID SUPERIORITY ACROSS A MOVING PLOIDY CONTACT ZONE

  2007cited by this paper
• No effect of ploidy level in plant response to competition in a common garden experiment

  2007influential reference
• Species richness of vascular plants, bryophytes and lichens in dry grasslands: The effects of environment, landscape structure and competition

  2006cited by this paper
• Germination characteristics of native Japanese dandelion autopolyploids and their putative diploid parent species

  2006cited by this paper
• ECOLOGICAL FACTORS INFLUENCING TETRAPLOID SPECIATION IN SNOW BUTTERCUPS (RANUNCULUS ADONEUS): NICHE DIFFERENTIATION AND TETRAPLOID ESTABLISHMENT

  2005cited by this paper
• Reproductive isolation between autotetraploids and their diploid progenitors in fireweed, Chamerion angustifolium (Onagraceae).

  2003cited by this paper
• Positive interactions among alpine plants increase with stress

  2002cited by this paper
• FACILITATION AND COMPETITION ON GRADIENTS IN ALPINE PLANT COMMUNITIES

  2001cited by this paper
• Speciation by postzygotic isolation: forces, genes and molecules

  2000cited by this paper
• Ecological, morphological and allozymic differentiation between diploid and tetraploid knapweeds (Centaurea jacea) from a contact zone in the Belgian Ardennes.

  2000cited by this paper
• Ecological mechanisms of reproductive isolation between diploid and tetraploid Chamerion angustifolium

  2000cited by this paper
• The ecological and evolutionary significance of frost in the context of climate change.

  2000cited by this paper
• Alpine Plant Life

  1999cited by this paper
• Evolutionary consequences of diploid-polyploid hybrid zones in wild species.

  1999cited by this paper
• Variation in phenotypic response to light availability between diploid and tetraploid populations of the perennial grass Arrhenatherum elatius from open and woodland sites

  1997cited by this paper
• The threatened status of marine fishes.

  1996cited by this paper
• Experimental evaluation

  1995cited by this paper
• Positive interactions in communities.

  1994cited by this paper
• Competition between diploid and derivative autotetraploid Dactylis glomerata L. from Galicia. Implications for the establishment of novel polyploid populations.

  1993cited by this paper
• Positive Plant Interactions in Tundra Vegetation and the Importance of Shelter

  1991cited by this paper
• Asymmetric competition in plant populations.

  1990influential reference
• Polyploidy and habitat differentiation in Dactylis glomerata L. from Galicia (Spain)

  1987cited by this paper
• Obere grenzen von flora und vegetation in der nivalstufe der zentralen ötztaler alpen (tirol)

  1958cited by this paper
• Obere grenzen von flora und vegetation in der nivalstufe der zentralen tztaler alpen (tirol): mit 1 karte, 17 tabellen und 9 abbildungen

  1958cited by this paper
• POSTZYGOTIC ISOLATION IN THE POLYPLOID COMPLEX OF A HIGH MOUNTAIN PLANT (SENECIO CARNIOLICUS, ASTERACEAE)

  year unknowncited by this paper

• Functional traits and soil water availability shape competitive interactions in a diploid-polyploid complex

  2024cites this paper
• Competitive ability, neopolyploid establishment and current distribution of a diploid–tetraploid plant complex

  2023cites this paper
• Impact of genome duplications in drought tolerance and distribution of the diploid-tetraploid Jasione maritima

  2023cites this paper
• Enough space in a warmer world? Microhabitat diversity and small‐scale distribution of alpine plants on mountain summits

  2018cites this paper
• Physiological and fitness differences between cytotypes vary with stress in a grassland perennial herb

  2017cites this paper
• Conditions in Home and Transplant Soils Have Differential Effects on the Performance of Diploid and Allotetraploid Anthericum Species

  2015cites this paper
• Ecological differentiation, lack of hybrids involving diploids, and asymmetric gene flow between polyploids in narrow contact zones of Senecio carniolicus (syn. Jacobaea carniolica, Asteraceae)

  2015cites this paper
• Response to competition of bulbous geophyte Allium oleraceum differing in ploidy level.

  2014cites this paper
• Evolutionary Consequences, Constraints and Potential of Polyploidy in Plants

  2013cites this paper
• Anthropogenic disturbance as a driver of microspatial and microhabitat segregation of cytotypes of Centaurea stoebe and cytotype interactions in secondary contact zones.

  2012cites this paper