Standard

Hydrology, shore morphology and species traits affect seed dispersal, germination and community assembly in shoreline plant communities. / Van Leeuwen, C.H.A.; Sarneel, J.M.; van Paassen, José; Rip, W.J.; Bakker, E.S.

In: Journal of Ecology, Vol. 102, No. 4, 2014, p. 998-1007.

Research output: Contribution to journal/periodicalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

BibTeX

@article{5f0279a442244aaba58757a2e04f7f03,
title = "Hydrology, shore morphology and species traits affect seed dispersal, germination and community assembly in shoreline plant communities",
abstract = "Summary 1.Seed dispersal and germination are two primary processes influencing plant community assembly. On freshwater shores, water levels regulate both processes. However, it is still unclear how water levels, shore morphology and species traits interactively affect seed dispersal and germination, and how these interactions determine plant community assembly. We hypothesize that a drawdown water regime enhances seed establishment compared to a year-round stable water level, that this increases species richness and diversity, and that this is modulated by species traits and shore morphology. 2.Germination of 20 wetland plant species with different dispersal capacities (floating capacity expressed as seed floatation half-time) and soil moisture preferences for germination (Ellenberg F) was tested on artificial shores in 24 outdoor ponds in two complementary experiments over 8 weeks. The ‘dispersal experiment’ tested the effect of water regime on recruitment of hydrochorously dispersing seeds. The ‘seed bank experiment’ tested the effect of water regime on germination from a sown seed bank, on steep and gradual shores. 3.In the dispersal experiment, the drawdown regime increased recruitment and species richness. Longer floating species colonized a larger shoreline section. Soil moisture preference for germination did not determine colonization patterns. 4.In the seed bank experiment, the drawdown regime increased the number of seedlings on gradual sloping shores, but not on steep shores. The number of germinating seedlings corresponded to the area subjected to the drawdown regime in both shore types. Species richness was not affected by water regime or shore morphology, and species traits did not determine shoreline colonization. Most seeds germinated in moist soil conditions for all species. 5.Synthesis. A spring drawdown instead of stable water regime stimulates establishment of hydrochorously dispersing seeds in temperate wetlands, leading to higher species richness and diversity. Germination from the seed bank is more affected by water regime and shore surface than by the tested species traits. Species traits, water levels and shore morphology together determine wetland plant community assembly, with dispersal as the main driver of seedling community diversity. Water-level regulations and shore morphology can be used to influence plant communities in wetland restoration.",
keywords = "national",
author = "{Van Leeuwen}, C.H.A. and J.M. Sarneel and {van Paassen}, Jos{\'e} and W.J. Rip and E.S. Bakker",
note = "Reporting year: 2014 Metis note: 5595, AqE Data archiving: data archived at Dryad",
year = "2014",
doi = "10.1111/1365-2745.12250",
language = "English",
volume = "102",
pages = "998--1007",
journal = "Journal of Ecology",
issn = "0022-0477",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Hydrology, shore morphology and species traits affect seed dispersal, germination and community assembly in shoreline plant communities

AU - Van Leeuwen, C.H.A.

AU - Sarneel, J.M.

AU - van Paassen, José

AU - Rip, W.J.

AU - Bakker, E.S.

N1 - Reporting year: 2014 Metis note: 5595, AqE Data archiving: data archived at Dryad

PY - 2014

Y1 - 2014

N2 - Summary 1.Seed dispersal and germination are two primary processes influencing plant community assembly. On freshwater shores, water levels regulate both processes. However, it is still unclear how water levels, shore morphology and species traits interactively affect seed dispersal and germination, and how these interactions determine plant community assembly. We hypothesize that a drawdown water regime enhances seed establishment compared to a year-round stable water level, that this increases species richness and diversity, and that this is modulated by species traits and shore morphology. 2.Germination of 20 wetland plant species with different dispersal capacities (floating capacity expressed as seed floatation half-time) and soil moisture preferences for germination (Ellenberg F) was tested on artificial shores in 24 outdoor ponds in two complementary experiments over 8 weeks. The ‘dispersal experiment’ tested the effect of water regime on recruitment of hydrochorously dispersing seeds. The ‘seed bank experiment’ tested the effect of water regime on germination from a sown seed bank, on steep and gradual shores. 3.In the dispersal experiment, the drawdown regime increased recruitment and species richness. Longer floating species colonized a larger shoreline section. Soil moisture preference for germination did not determine colonization patterns. 4.In the seed bank experiment, the drawdown regime increased the number of seedlings on gradual sloping shores, but not on steep shores. The number of germinating seedlings corresponded to the area subjected to the drawdown regime in both shore types. Species richness was not affected by water regime or shore morphology, and species traits did not determine shoreline colonization. Most seeds germinated in moist soil conditions for all species. 5.Synthesis. A spring drawdown instead of stable water regime stimulates establishment of hydrochorously dispersing seeds in temperate wetlands, leading to higher species richness and diversity. Germination from the seed bank is more affected by water regime and shore surface than by the tested species traits. Species traits, water levels and shore morphology together determine wetland plant community assembly, with dispersal as the main driver of seedling community diversity. Water-level regulations and shore morphology can be used to influence plant communities in wetland restoration.

AB - Summary 1.Seed dispersal and germination are two primary processes influencing plant community assembly. On freshwater shores, water levels regulate both processes. However, it is still unclear how water levels, shore morphology and species traits interactively affect seed dispersal and germination, and how these interactions determine plant community assembly. We hypothesize that a drawdown water regime enhances seed establishment compared to a year-round stable water level, that this increases species richness and diversity, and that this is modulated by species traits and shore morphology. 2.Germination of 20 wetland plant species with different dispersal capacities (floating capacity expressed as seed floatation half-time) and soil moisture preferences for germination (Ellenberg F) was tested on artificial shores in 24 outdoor ponds in two complementary experiments over 8 weeks. The ‘dispersal experiment’ tested the effect of water regime on recruitment of hydrochorously dispersing seeds. The ‘seed bank experiment’ tested the effect of water regime on germination from a sown seed bank, on steep and gradual shores. 3.In the dispersal experiment, the drawdown regime increased recruitment and species richness. Longer floating species colonized a larger shoreline section. Soil moisture preference for germination did not determine colonization patterns. 4.In the seed bank experiment, the drawdown regime increased the number of seedlings on gradual sloping shores, but not on steep shores. The number of germinating seedlings corresponded to the area subjected to the drawdown regime in both shore types. Species richness was not affected by water regime or shore morphology, and species traits did not determine shoreline colonization. Most seeds germinated in moist soil conditions for all species. 5.Synthesis. A spring drawdown instead of stable water regime stimulates establishment of hydrochorously dispersing seeds in temperate wetlands, leading to higher species richness and diversity. Germination from the seed bank is more affected by water regime and shore surface than by the tested species traits. Species traits, water levels and shore morphology together determine wetland plant community assembly, with dispersal as the main driver of seedling community diversity. Water-level regulations and shore morphology can be used to influence plant communities in wetland restoration.

KW - national

U2 - 10.1111/1365-2745.12250

DO - 10.1111/1365-2745.12250

M3 - Article

VL - 102

SP - 998

EP - 1007

JO - Journal of Ecology

JF - Journal of Ecology

SN - 0022-0477

IS - 4

ER -

ID: 331079