Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Standard

Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands. / Ahlborn, Julian; Wesche, Karsten; Lang, Birgit et al.
in: Applied Vegetation Science, Jahrgang 24, Nr. 2, e12581, 01.04.2021.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Harvard

Ahlborn, J, Wesche, K, Lang, B, Oyunbileg, M, Oyuntsetseg, B, Römermann, C, French Collier, N & von Wehrden, H 2021, 'Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands', Applied Vegetation Science, Jg. 24, Nr. 2, e12581. https://doi.org/10.1111/avsc.12581

APA

Ahlborn, J., Wesche, K., Lang, B., Oyunbileg, M., Oyuntsetseg, B., Römermann, C., French Collier, N., & von Wehrden, H. (2021). Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands. Applied Vegetation Science, 24(2), Artikel e12581. https://doi.org/10.1111/avsc.12581

Vancouver

Ahlborn J, Wesche K, Lang B, Oyunbileg M, Oyuntsetseg B, Römermann C et al. Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands. Applied Vegetation Science. 2021 Apr 1;24(2):e12581. doi: 10.1111/avsc.12581

Bibtex

@article{bebb45d670574fdeb90ee25e5e9a0adb,
title = "Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands",
abstract = "Questions: Livestock management in rangelands depends on the production of plant biomass. Biomass production is driven by the temporal and spatial variability in precipitation, but our understanding of how precipitation variability mediates grazing effects on biomass production is still fragmented. Along a 600-km precipitation gradient we extracted biomass data to ask the questions: (a) what are the effects of grazing intensity on biomass production; (b) does grazing intensity interact with plant species richness to affect biomass production; and (c) how do plant functional groups respond to grazing and precipitation?. Location: Mongolia. Methods: Biomass was sampled along 15 grazing intensity transects within the precipitation gradient over two consecutive years. We modeled spatial variability in above-ground plant biomass using mixed-effects models. Normalized difference vegetation index (NDVI) data were combined with field-sampled biomass data to correct for inter-annual precipitation variation. The effects of species richness were modeled with respect to possible interactions with grazing intensity, and the composition of plant functional groups was modeled with respect to possible interactions between grazing intensity and precipitation. Results: Biomass was negatively correlated with grazing intensity and this effect increased as precipitation increased. Biomass was positively correlated with species richness in both years, but the strength of this effect and the interaction between species richness and grazing intensity differed between 2014 and 2015 in line with highly variable precipitation between both years. The plant functional groups grasses, sedges, legumes, wormwood and forbs had contrasting responses to grazing and precipitation. Conclusion: Biomass production in drylands is more vulnerable to changes in precipitation variability and grazing intensities in relatively moist and productive rangelands than in dry and unproductive ones. Future rangeland management needs to address potentially increasing precipitation variability in order to promote desired forage plants, and to preserve the positive effects of biodiversity for biomass production.",
keywords = "drylands, grasslands, livestock, NDVI, plant functional groups, precipitation gradient, species richness, Biology, Ecosystems Research",
author = "Julian Ahlborn and Karsten Wesche and Birgit Lang and Munkhzul Oyunbileg and Batlai Oyuntsetseg and Christine R{\"o}mermann and {French Collier}, Neil and {von Wehrden}, Henrik",
year = "2021",
month = apr,
day = "1",
doi = "10.1111/avsc.12581",
language = "English",
volume = "24",
journal = "Applied Vegetation Science",
issn = "1402-2001",
publisher = "Wiley-Blackwell Publishing, Inc.",
number = "2",

}

RIS

TY - JOUR

T1 - Interactions between species richness, herbivory and precipitation affect standing biomass in Mongolian rangelands

AU - Ahlborn, Julian

AU - Wesche, Karsten

AU - Lang, Birgit

AU - Oyunbileg, Munkhzul

AU - Oyuntsetseg, Batlai

AU - Römermann, Christine

AU - French Collier, Neil

AU - von Wehrden, Henrik

PY - 2021/4/1

Y1 - 2021/4/1

N2 - Questions: Livestock management in rangelands depends on the production of plant biomass. Biomass production is driven by the temporal and spatial variability in precipitation, but our understanding of how precipitation variability mediates grazing effects on biomass production is still fragmented. Along a 600-km precipitation gradient we extracted biomass data to ask the questions: (a) what are the effects of grazing intensity on biomass production; (b) does grazing intensity interact with plant species richness to affect biomass production; and (c) how do plant functional groups respond to grazing and precipitation?. Location: Mongolia. Methods: Biomass was sampled along 15 grazing intensity transects within the precipitation gradient over two consecutive years. We modeled spatial variability in above-ground plant biomass using mixed-effects models. Normalized difference vegetation index (NDVI) data were combined with field-sampled biomass data to correct for inter-annual precipitation variation. The effects of species richness were modeled with respect to possible interactions with grazing intensity, and the composition of plant functional groups was modeled with respect to possible interactions between grazing intensity and precipitation. Results: Biomass was negatively correlated with grazing intensity and this effect increased as precipitation increased. Biomass was positively correlated with species richness in both years, but the strength of this effect and the interaction between species richness and grazing intensity differed between 2014 and 2015 in line with highly variable precipitation between both years. The plant functional groups grasses, sedges, legumes, wormwood and forbs had contrasting responses to grazing and precipitation. Conclusion: Biomass production in drylands is more vulnerable to changes in precipitation variability and grazing intensities in relatively moist and productive rangelands than in dry and unproductive ones. Future rangeland management needs to address potentially increasing precipitation variability in order to promote desired forage plants, and to preserve the positive effects of biodiversity for biomass production.

AB - Questions: Livestock management in rangelands depends on the production of plant biomass. Biomass production is driven by the temporal and spatial variability in precipitation, but our understanding of how precipitation variability mediates grazing effects on biomass production is still fragmented. Along a 600-km precipitation gradient we extracted biomass data to ask the questions: (a) what are the effects of grazing intensity on biomass production; (b) does grazing intensity interact with plant species richness to affect biomass production; and (c) how do plant functional groups respond to grazing and precipitation?. Location: Mongolia. Methods: Biomass was sampled along 15 grazing intensity transects within the precipitation gradient over two consecutive years. We modeled spatial variability in above-ground plant biomass using mixed-effects models. Normalized difference vegetation index (NDVI) data were combined with field-sampled biomass data to correct for inter-annual precipitation variation. The effects of species richness were modeled with respect to possible interactions with grazing intensity, and the composition of plant functional groups was modeled with respect to possible interactions between grazing intensity and precipitation. Results: Biomass was negatively correlated with grazing intensity and this effect increased as precipitation increased. Biomass was positively correlated with species richness in both years, but the strength of this effect and the interaction between species richness and grazing intensity differed between 2014 and 2015 in line with highly variable precipitation between both years. The plant functional groups grasses, sedges, legumes, wormwood and forbs had contrasting responses to grazing and precipitation. Conclusion: Biomass production in drylands is more vulnerable to changes in precipitation variability and grazing intensities in relatively moist and productive rangelands than in dry and unproductive ones. Future rangeland management needs to address potentially increasing precipitation variability in order to promote desired forage plants, and to preserve the positive effects of biodiversity for biomass production.

KW - drylands

KW - grasslands

KW - livestock

KW - NDVI

KW - plant functional groups

KW - precipitation gradient

KW - species richness

KW - Biology

KW - Ecosystems Research

UR - http://www.scopus.com/inward/record.url?scp=85104890838&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/d2594785-50fc-30ee-9ced-85d649cd3225/

U2 - 10.1111/avsc.12581

DO - 10.1111/avsc.12581

M3 - Journal articles

AN - SCOPUS:85104890838

VL - 24

JO - Applied Vegetation Science

JF - Applied Vegetation Science

SN - 1402-2001

IS - 2

M1 - e12581

ER -

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