How do bryophytes govern generative recruitment of vascular plants?

Nadejda A. Soudzilovskaia, Bente J. Graae, Jacob C. Douma, Oriol Grau, Ann Milbau, Anna Shevtsova, Loes Wolters, Johannes H.C. Cornelissen

Research output: Contribution to journalArticleAcademicpeer-review

58 Citations (Scopus)

Abstract

Interactions between vascular plants and bryophytes determine plant community composition in many ecosystems. Yet, little is known about the importance of interspecific differences between bryophytes with respect to their effects on vascular plants. We compared the extent to which species-specific bryophyte effects on vascular plant generative recruitment depend on the following underlying mechanisms: allelopathy, mechanical obstruction, soil moisture and temperature control. We sowed 10 vascular plant species into monospecific mats of six chemically and structurally diverse bryophytes, and examined 1-yr seedling recruitment. Allelopathic effects were also assessed in a laboratory phyto-assay. Although all bryophytes suppressed vascular plant regeneration, there were significant differences between the bryophyte species. The lack of interactions indicated the absence of species-specific adaptations of vascular plants for recruitment in bryophyte mats. Differences between bryophyte species were best explained by alterations in temperature regime under bryophyte mats, mostly by reduced temperature amplitudes during germination. The temperature regime under bryophyte mats was well predicted by species-specific bryophyte cushion thickness. The fitness of established seedlings was not affected by the presence of bryophytes. Our results suggest that climatically or anthropogenically driven changes in the species' composition of bryophyte communities have knock-on effects on vascular plant populations via generative reproduction.

Original languageEnglish
Pages (from-to)1019-1031
JournalNew Phytologist
Volume190
Issue number4
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

Fingerprint

Bryophyta
vascular plants
Blood Vessels
Temperature
Seedlings
Allelopathy
temperature
allelopathy
Germination
soil temperature
Reproduction
Ecosystem
Regeneration

Keywords

  • Allelopathy
  • Bryophyte
  • Generative recruitment
  • Germination
  • Moisture
  • Plant-plant interaction
  • Seedling
  • Temperature

Cite this

Soudzilovskaia, N. A., Graae, B. J., Douma, J. C., Grau, O., Milbau, A., Shevtsova, A., ... Cornelissen, J. H. C. (2011). How do bryophytes govern generative recruitment of vascular plants? New Phytologist, 190(4), 1019-1031. https://doi.org/10.1111/j.1469-8137.2011.03644.x
Soudzilovskaia, Nadejda A. ; Graae, Bente J. ; Douma, Jacob C. ; Grau, Oriol ; Milbau, Ann ; Shevtsova, Anna ; Wolters, Loes ; Cornelissen, Johannes H.C. / How do bryophytes govern generative recruitment of vascular plants?. In: New Phytologist. 2011 ; Vol. 190, No. 4. pp. 1019-1031.
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Soudzilovskaia, NA, Graae, BJ, Douma, JC, Grau, O, Milbau, A, Shevtsova, A, Wolters, L & Cornelissen, JHC 2011, 'How do bryophytes govern generative recruitment of vascular plants?' New Phytologist, vol. 190, no. 4, pp. 1019-1031. https://doi.org/10.1111/j.1469-8137.2011.03644.x

How do bryophytes govern generative recruitment of vascular plants? / Soudzilovskaia, Nadejda A.; Graae, Bente J.; Douma, Jacob C.; Grau, Oriol; Milbau, Ann; Shevtsova, Anna; Wolters, Loes; Cornelissen, Johannes H.C.

In: New Phytologist, Vol. 190, No. 4, 06.2011, p. 1019-1031.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Soudzilovskaia, Nadejda A.

AU - Graae, Bente J.

AU - Douma, Jacob C.

AU - Grau, Oriol

AU - Milbau, Ann

AU - Shevtsova, Anna

AU - Wolters, Loes

AU - Cornelissen, Johannes H.C.

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AB - Interactions between vascular plants and bryophytes determine plant community composition in many ecosystems. Yet, little is known about the importance of interspecific differences between bryophytes with respect to their effects on vascular plants. We compared the extent to which species-specific bryophyte effects on vascular plant generative recruitment depend on the following underlying mechanisms: allelopathy, mechanical obstruction, soil moisture and temperature control. We sowed 10 vascular plant species into monospecific mats of six chemically and structurally diverse bryophytes, and examined 1-yr seedling recruitment. Allelopathic effects were also assessed in a laboratory phyto-assay. Although all bryophytes suppressed vascular plant regeneration, there were significant differences between the bryophyte species. The lack of interactions indicated the absence of species-specific adaptations of vascular plants for recruitment in bryophyte mats. Differences between bryophyte species were best explained by alterations in temperature regime under bryophyte mats, mostly by reduced temperature amplitudes during germination. The temperature regime under bryophyte mats was well predicted by species-specific bryophyte cushion thickness. The fitness of established seedlings was not affected by the presence of bryophytes. Our results suggest that climatically or anthropogenically driven changes in the species' composition of bryophyte communities have knock-on effects on vascular plant populations via generative reproduction.

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KW - Bryophyte

KW - Generative recruitment

KW - Germination

KW - Moisture

KW - Plant-plant interaction

KW - Seedling

KW - Temperature

U2 - 10.1111/j.1469-8137.2011.03644.x

DO - 10.1111/j.1469-8137.2011.03644.x

M3 - Article

VL - 190

SP - 1019

EP - 1031

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 4

ER -

Soudzilovskaia NA, Graae BJ, Douma JC, Grau O, Milbau A, Shevtsova A et al. How do bryophytes govern generative recruitment of vascular plants? New Phytologist. 2011 Jun;190(4):1019-1031. https://doi.org/10.1111/j.1469-8137.2011.03644.x