The exotic shrub Rosa rubiginosa as a nurse plant: Implications for the restoration of disturbed temperate forests in Patagonia

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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The exotic shrub Rosa rubiginosa as a nurse plant: Implications for the restoration of disturbed temperate forests in Patagonia. / Svriz, Maya ; Damascos, Maria; Zimmermann, Heike et al.
in: Forest Ecology and Management, Jahrgang 289, Nr. Februar, 01.02.2013, S. 234-242.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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@article{3a25a67e52dc4aaf951c6a0f299e7254,
title = "The exotic shrub Rosa rubiginosa as a nurse plant: Implications for the restoration of disturbed temperate forests in Patagonia",
abstract = "Facilitation of forest native species under exotic nurse plants may differ between climatic regions and microsites. Recruitment of other exotic species should be taken into account when areas invaded by exotic shrubs are considered for forest restoration. Natural regeneration of native and exotic species and survival of planted native saplings under the deciduous exotic Rosa rubiginosa (shrub microsite = SM) and in open microsites (OM) were studied in preexisting shrublands of mesic and wet regions in North Patagonia. Light levels, soil chemical composition and seasonal variation of soil moisture were analyzed in SM and OM and the content of N and C was compared between mature and senescent R. rubiginosa leaves. In the SM, native species received less light and soils had higher C:N rate and moisture in spring than in the OM. R. rubiginosa reabsorbs this nutrient before leaves fall. Natural native forest species recruitment occurred only in the SM. In shrublands of the mesic region native species richness and abundance increased under bigger nurse plants. In the wet region, where herbivory was higher, moderate climatic conditions allowed greater species richness and abundance than in the mesic region, independently of the nurse plant volume. The height of the exotic shrub and the protected species showed a positive and negative relationship in the mesic and wet region, respectively. Exotic species grew under 5–15% of the nurse plants (n = 60). Survival of planted saplings, shoot resprouting and herbivore-related mortality were highest in the SM and in wet regions. Sapling mortality due to drying out was highest in the OM of the mesic region. It is possible for forest restoration in areas previously invaded by R. rubiginosa to achieve highly positive results in mesic regions where plants are protected from desiccation. In areas with moderate climatic conditions, facilitation against herbivores has beneficial initial effects, but as the nurse plant competes with taller native individuals, forest restoration would depend on effective control of the nurse plant biomass. In both areas other exotic species would be well represented in the long term.",
keywords = "Environmental planning, Exotic plant, Facilitation, Forest restauration, Austrocedrus chilensis, Nothofagus dombeyi",
author = "Maya Svriz and Maria Damascos and Heike Zimmermann and Isabell Hensen",
year = "2013",
month = feb,
day = "1",
doi = "10.1016/j.foreco.2012.09.037",
language = "English",
volume = "289",
pages = "234--242",
journal = "Forest Ecology and Management",
issn = "0378-1127",
publisher = "Elsevier B.V.",
number = "Februar",

}

RIS

TY - JOUR

T1 - The exotic shrub Rosa rubiginosa as a nurse plant

T2 - Implications for the restoration of disturbed temperate forests in Patagonia

AU - Svriz, Maya

AU - Damascos, Maria

AU - Zimmermann, Heike

AU - Hensen, Isabell

PY - 2013/2/1

Y1 - 2013/2/1

N2 - Facilitation of forest native species under exotic nurse plants may differ between climatic regions and microsites. Recruitment of other exotic species should be taken into account when areas invaded by exotic shrubs are considered for forest restoration. Natural regeneration of native and exotic species and survival of planted native saplings under the deciduous exotic Rosa rubiginosa (shrub microsite = SM) and in open microsites (OM) were studied in preexisting shrublands of mesic and wet regions in North Patagonia. Light levels, soil chemical composition and seasonal variation of soil moisture were analyzed in SM and OM and the content of N and C was compared between mature and senescent R. rubiginosa leaves. In the SM, native species received less light and soils had higher C:N rate and moisture in spring than in the OM. R. rubiginosa reabsorbs this nutrient before leaves fall. Natural native forest species recruitment occurred only in the SM. In shrublands of the mesic region native species richness and abundance increased under bigger nurse plants. In the wet region, where herbivory was higher, moderate climatic conditions allowed greater species richness and abundance than in the mesic region, independently of the nurse plant volume. The height of the exotic shrub and the protected species showed a positive and negative relationship in the mesic and wet region, respectively. Exotic species grew under 5–15% of the nurse plants (n = 60). Survival of planted saplings, shoot resprouting and herbivore-related mortality were highest in the SM and in wet regions. Sapling mortality due to drying out was highest in the OM of the mesic region. It is possible for forest restoration in areas previously invaded by R. rubiginosa to achieve highly positive results in mesic regions where plants are protected from desiccation. In areas with moderate climatic conditions, facilitation against herbivores has beneficial initial effects, but as the nurse plant competes with taller native individuals, forest restoration would depend on effective control of the nurse plant biomass. In both areas other exotic species would be well represented in the long term.

AB - Facilitation of forest native species under exotic nurse plants may differ between climatic regions and microsites. Recruitment of other exotic species should be taken into account when areas invaded by exotic shrubs are considered for forest restoration. Natural regeneration of native and exotic species and survival of planted native saplings under the deciduous exotic Rosa rubiginosa (shrub microsite = SM) and in open microsites (OM) were studied in preexisting shrublands of mesic and wet regions in North Patagonia. Light levels, soil chemical composition and seasonal variation of soil moisture were analyzed in SM and OM and the content of N and C was compared between mature and senescent R. rubiginosa leaves. In the SM, native species received less light and soils had higher C:N rate and moisture in spring than in the OM. R. rubiginosa reabsorbs this nutrient before leaves fall. Natural native forest species recruitment occurred only in the SM. In shrublands of the mesic region native species richness and abundance increased under bigger nurse plants. In the wet region, where herbivory was higher, moderate climatic conditions allowed greater species richness and abundance than in the mesic region, independently of the nurse plant volume. The height of the exotic shrub and the protected species showed a positive and negative relationship in the mesic and wet region, respectively. Exotic species grew under 5–15% of the nurse plants (n = 60). Survival of planted saplings, shoot resprouting and herbivore-related mortality were highest in the SM and in wet regions. Sapling mortality due to drying out was highest in the OM of the mesic region. It is possible for forest restoration in areas previously invaded by R. rubiginosa to achieve highly positive results in mesic regions where plants are protected from desiccation. In areas with moderate climatic conditions, facilitation against herbivores has beneficial initial effects, but as the nurse plant competes with taller native individuals, forest restoration would depend on effective control of the nurse plant biomass. In both areas other exotic species would be well represented in the long term.

KW - Environmental planning

KW - Exotic plant

KW - Facilitation

KW - Forest restauration

KW - Austrocedrus chilensis

KW - Nothofagus dombeyi

UR - http://www.scopus.com/inward/record.url?scp=84870174687&partnerID=8YFLogxK

U2 - 10.1016/j.foreco.2012.09.037

DO - 10.1016/j.foreco.2012.09.037

M3 - Journal articles

VL - 289

SP - 234

EP - 242

JO - Forest Ecology and Management

JF - Forest Ecology and Management

SN - 0378-1127

IS - Februar

ER -

DOI

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