Water as a resource, stress and disturbance shaping tundra vegetation

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

Water is crucial for plant productivity and survival as a fundamental resource, but water conditions can also cause physiological stress and mechanical disturbance to vegetation. However, these different influences of water on vegetation patterns have not been evaluated simultaneously. Here, we demonstrate the importance of three water aspects (spatial and temporal variation of soil moisture and fluvial disturbance) for three ecologically and evolutionary distinct taxonomical groups (vascular plants, mosses, and lichens) in Fennoscandian mountain tundra. Fine‐scale plant occurrence data for 271 species were collected from 378 x 1 m2 plots sampled over broad environmental gradients (water, temperature, radiation, soil pH, cryogenic processes, and the dominant allelopathic plant species). While controlling all other key environmental variables, water in its different aspects proved to be a crucial environmental driver, acting on individual species and on community characteristics. The inclusion of the water variables significantly improved our models. In this high‐latitude system, the importance of spatial variability of water exceeds the importance of temperature for the fine‐scale distribution of species from the three taxonomical groups. We found differing responses to the three water variables between and within the taxonomical groups. Water as a resource was the most important water‐related variable in species distribution models across all taxonomical groups. Both water resource and disturbance were strongly related to vascular plant species richness, whereas for moss species richness, water resources had the highest influence. For lichen species richness, water disturbance was the most influential water‐related variable. These findings demonstrate that water variables are not only independent properties of tundra hydrology, but also that water is truly a multifaceted driver of vegetation patterns at high‐latitudes.

Alkuperäiskielienglanti
LehtiOikos
Vuosikerta128
Numero6
Sivut811-822
Sivumäärä12
ISSN0030-1299
DOI - pysyväislinkit
TilaJulkaistu - 1 kesäkuuta 2019
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

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  • 1172 Ympäristötiede

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@article{3d107289256c4d118cfd141354b5864f,
title = "Water as a resource, stress and disturbance shaping tundra vegetation",
abstract = "Water is crucial for plant productivity and survival as a fundamental resource, but water conditions can also cause physiological stress and mechanical disturbance to vegetation. However, these different influences of water on vegetation patterns have not been evaluated simultaneously. Here, we demonstrate the importance of three water aspects (spatial and temporal variation of soil moisture and fluvial disturbance) for three ecologically and evolutionary distinct taxonomical groups (vascular plants, mosses and lichens) in Fennoscandian mountain tundra. Fine‐scale plant occurrence data for 271 species were collected from 378 × 1 m2 plots sampled over broad environmental gradients (water, temperature, radiation, soil pH, cryogenic processes and the dominant allelopathic plant species). While controlling all other key environmental variables, water in its different aspects proved to be a crucial environmental driver, acting on individual species and on community characteristics. The inclusion of the water variables significantly improved our models. In this high‐latitude system, the importance of spatial variability of water exceeds the importance of temperature for the fine‐scale distribution of species from the three taxonomical groups. We found differing responses to the three water variables between and within the taxonomical groups. Water as a resource was the most important water‐related variable in species distribution models across all taxonomical groups. Both water resource and disturbance were strongly related to vascular plant species richness, whereas for moss species richness, water resources had the highest influence. For lichen species richness, water disturbance was the most influential water‐related variable. These findings demonstrate that water variables are not only independent properties of tundra hydrology, but also that water is truly a multifaceted driver of vegetation patterns at high‐latitudes.",
keywords = "1172 Environmental sciences, arctic–alpine, soil moisture, species distribution, arctic-alpine, soil moisture, species distribution, SPECIES DISTRIBUTION MODELS, CLIMATE-CHANGE, ARCTIC TUNDRA, PLANT-GROWTH, SHRUB GROWTH, SNOW COVER, RESPONSES, ALPINE, BIODIVERSITY, TEMPERATURE",
author = "Julia Kemppinen and Pekka Niittynen and Juha Aalto and {le Roux}, {Peter C.} and Miska Luoto",
year = "2019",
month = "6",
day = "1",
doi = "10.1111/oik.05764",
language = "English",
volume = "128",
pages = "811--822",
journal = "Oikos",
issn = "0030-1299",
publisher = "Wiley",
number = "6",

}

Water as a resource, stress and disturbance shaping tundra vegetation. / Kemppinen, Julia; Niittynen, Pekka; Aalto, Juha; le Roux, Peter C.; Luoto, Miska.

julkaisussa: Oikos, Vuosikerta 128, Nro 6, 01.06.2019, s. 811-822.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Water as a resource, stress and disturbance shaping tundra vegetation

AU - Kemppinen, Julia

AU - Niittynen, Pekka

AU - Aalto, Juha

AU - le Roux, Peter C.

AU - Luoto, Miska

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Water is crucial for plant productivity and survival as a fundamental resource, but water conditions can also cause physiological stress and mechanical disturbance to vegetation. However, these different influences of water on vegetation patterns have not been evaluated simultaneously. Here, we demonstrate the importance of three water aspects (spatial and temporal variation of soil moisture and fluvial disturbance) for three ecologically and evolutionary distinct taxonomical groups (vascular plants, mosses and lichens) in Fennoscandian mountain tundra. Fine‐scale plant occurrence data for 271 species were collected from 378 × 1 m2 plots sampled over broad environmental gradients (water, temperature, radiation, soil pH, cryogenic processes and the dominant allelopathic plant species). While controlling all other key environmental variables, water in its different aspects proved to be a crucial environmental driver, acting on individual species and on community characteristics. The inclusion of the water variables significantly improved our models. In this high‐latitude system, the importance of spatial variability of water exceeds the importance of temperature for the fine‐scale distribution of species from the three taxonomical groups. We found differing responses to the three water variables between and within the taxonomical groups. Water as a resource was the most important water‐related variable in species distribution models across all taxonomical groups. Both water resource and disturbance were strongly related to vascular plant species richness, whereas for moss species richness, water resources had the highest influence. For lichen species richness, water disturbance was the most influential water‐related variable. These findings demonstrate that water variables are not only independent properties of tundra hydrology, but also that water is truly a multifaceted driver of vegetation patterns at high‐latitudes.

AB - Water is crucial for plant productivity and survival as a fundamental resource, but water conditions can also cause physiological stress and mechanical disturbance to vegetation. However, these different influences of water on vegetation patterns have not been evaluated simultaneously. Here, we demonstrate the importance of three water aspects (spatial and temporal variation of soil moisture and fluvial disturbance) for three ecologically and evolutionary distinct taxonomical groups (vascular plants, mosses and lichens) in Fennoscandian mountain tundra. Fine‐scale plant occurrence data for 271 species were collected from 378 × 1 m2 plots sampled over broad environmental gradients (water, temperature, radiation, soil pH, cryogenic processes and the dominant allelopathic plant species). While controlling all other key environmental variables, water in its different aspects proved to be a crucial environmental driver, acting on individual species and on community characteristics. The inclusion of the water variables significantly improved our models. In this high‐latitude system, the importance of spatial variability of water exceeds the importance of temperature for the fine‐scale distribution of species from the three taxonomical groups. We found differing responses to the three water variables between and within the taxonomical groups. Water as a resource was the most important water‐related variable in species distribution models across all taxonomical groups. Both water resource and disturbance were strongly related to vascular plant species richness, whereas for moss species richness, water resources had the highest influence. For lichen species richness, water disturbance was the most influential water‐related variable. These findings demonstrate that water variables are not only independent properties of tundra hydrology, but also that water is truly a multifaceted driver of vegetation patterns at high‐latitudes.

KW - 1172 Environmental sciences

KW - arctic–alpine

KW - soil moisture

KW - species distribution

KW - arctic-alpine

KW - soil moisture

KW - species distribution

KW - SPECIES DISTRIBUTION MODELS

KW - CLIMATE-CHANGE

KW - ARCTIC TUNDRA

KW - PLANT-GROWTH

KW - SHRUB GROWTH

KW - SNOW COVER

KW - RESPONSES

KW - ALPINE

KW - BIODIVERSITY

KW - TEMPERATURE

U2 - 10.1111/oik.05764

DO - 10.1111/oik.05764

M3 - Article

VL - 128

SP - 811

EP - 822

JO - Oikos

JF - Oikos

SN - 0030-1299

IS - 6

ER -