Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?

Question: In northwest Patagonia burning of fire-resistant forests creates a community-level positive feedback towards increased fire occurrence because of successional replacement by fire-prone shrublands. We hypothesize that variability in plant traits related to time since last fire and to herbiv...

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Published in:Journal of Vegetation Science
Main Authors: Blackhall, Melisa, Raffaele, Estela, Veblen, Thomas
Format: Article in Journal/Newspaper
Language:English
Published: Wiley Blackwell Publishing, Inc
Subjects:
Online Access:http://hdl.handle.net/11336/75570
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spelling ftconicet:oai:ri.conicet.gov.ar:11336/75570 2023-10-09T21:45:19+02:00 Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina? Blackhall, Melisa Raffaele, Estela Veblen, Thomas application/pdf http://hdl.handle.net/11336/75570 eng eng Wiley Blackwell Publishing, Inc info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1654-1103.2012.01405.x info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1654-1103.2012.01405.x http://hdl.handle.net/11336/75570 Blackhall, Melisa; Raffaele, Estela; Veblen, Thomas; Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?; Wiley Blackwell Publishing, Inc; Journal of Vegetation Science; 23; 5; 10-2012; 931-941 1100-9233 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Cattle Herbivory Fire Ecology Fuel Flammability Ignitability Tests Leaf Traits Plant-Herbivore Interactions Resprouting Species https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1111/j.1654-1103.2012.01405.x 2023-09-24T20:02:56Z Question: In northwest Patagonia burning of fire-resistant forests creates a community-level positive feedback towards increased fire occurrence because of successional replacement by fire-prone shrublands. We hypothesize that variability in plant traits related to time since last fire and to herbivory by cattle may affect foliar flammability, thus providing a flammability-promoting mechanism operating at the level of individual plants. We examine how plant foliar traits affecting flammability vary across species and at sites recovering from recent fires (<15 yr) vs sites not affected by fire for > 50 yr, both in the presence and absence of cattle. Location: Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods: We measured four foliar traits expected to affect flammability: leaf moisture, leaf size, specific leaf area and leaf strength, and conducted tests of ignitability (time to ignition and duration of combustion) on leaves of six common tall shrub and small tree species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus and highly palatable Maytenus boaria and Ribes magellanicum. We used ANOVA and PCA to examine potential relationships among species flammability traits, time since fire and presence or absence of cattle. Results: At plant level, variability in flammability-related foliar properties is strongly and consistently related to time since last fire, whereas effects of cattle are more variable across species and treatments. In comparison with unburned forests, the dominant woody species at shrubland sites showed reduced leaf moisture, leaf size and specific leaf area. Under pressure from cattle, N. antarctica, one of the most important woody species in these shrublands, showed changes in some foliar traits expected to enhance flammability (e.g. shorter time to ignition) but overall the influence of cattle on flammability was not consistent. Conclusions: The current study demonstrates that plant foliar traits vary ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Patagonia Argentina Ribes ENVELOPE(-60.633,-60.633,-62.650,-62.650) Journal of Vegetation Science 23 5 931 941
institution Open Polar
collection CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
op_collection_id ftconicet
language English
topic Cattle Herbivory
Fire Ecology
Fuel Flammability
Ignitability Tests
Leaf Traits
Plant-Herbivore Interactions
Resprouting Species
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
spellingShingle Cattle Herbivory
Fire Ecology
Fuel Flammability
Ignitability Tests
Leaf Traits
Plant-Herbivore Interactions
Resprouting Species
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
Blackhall, Melisa
Raffaele, Estela
Veblen, Thomas
Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
topic_facet Cattle Herbivory
Fire Ecology
Fuel Flammability
Ignitability Tests
Leaf Traits
Plant-Herbivore Interactions
Resprouting Species
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description Question: In northwest Patagonia burning of fire-resistant forests creates a community-level positive feedback towards increased fire occurrence because of successional replacement by fire-prone shrublands. We hypothesize that variability in plant traits related to time since last fire and to herbivory by cattle may affect foliar flammability, thus providing a flammability-promoting mechanism operating at the level of individual plants. We examine how plant foliar traits affecting flammability vary across species and at sites recovering from recent fires (<15 yr) vs sites not affected by fire for > 50 yr, both in the presence and absence of cattle. Location: Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods: We measured four foliar traits expected to affect flammability: leaf moisture, leaf size, specific leaf area and leaf strength, and conducted tests of ignitability (time to ignition and duration of combustion) on leaves of six common tall shrub and small tree species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus and highly palatable Maytenus boaria and Ribes magellanicum. We used ANOVA and PCA to examine potential relationships among species flammability traits, time since fire and presence or absence of cattle. Results: At plant level, variability in flammability-related foliar properties is strongly and consistently related to time since last fire, whereas effects of cattle are more variable across species and treatments. In comparison with unburned forests, the dominant woody species at shrubland sites showed reduced leaf moisture, leaf size and specific leaf area. Under pressure from cattle, N. antarctica, one of the most important woody species in these shrublands, showed changes in some foliar traits expected to enhance flammability (e.g. shorter time to ignition) but overall the influence of cattle on flammability was not consistent. Conclusions: The current study demonstrates that plant foliar traits vary ...
format Article in Journal/Newspaper
author Blackhall, Melisa
Raffaele, Estela
Veblen, Thomas
author_facet Blackhall, Melisa
Raffaele, Estela
Veblen, Thomas
author_sort Blackhall, Melisa
title Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
title_short Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
title_full Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
title_fullStr Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
title_full_unstemmed Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?
title_sort is foliar flammability of woody species related to time since fire and herbivory in northwest patagonia, argentina?
publisher Wiley Blackwell Publishing, Inc
url http://hdl.handle.net/11336/75570
long_lat ENVELOPE(-60.633,-60.633,-62.650,-62.650)
geographic Patagonia
Argentina
Ribes
geographic_facet Patagonia
Argentina
Ribes
genre Antarc*
Antarctica
genre_facet Antarc*
Antarctica
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1654-1103.2012.01405.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1654-1103.2012.01405.x
http://hdl.handle.net/11336/75570
Blackhall, Melisa; Raffaele, Estela; Veblen, Thomas; Is foliar flammability of woody species related to time since fire and herbivory in northwest Patagonia, Argentina?; Wiley Blackwell Publishing, Inc; Journal of Vegetation Science; 23; 5; 10-2012; 931-941
1100-9233
CONICET Digital
CONICET
op_rights info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
op_doi https://doi.org/10.1111/j.1654-1103.2012.01405.x
container_title Journal of Vegetation Science
container_volume 23
container_issue 5
container_start_page 931
op_container_end_page 941
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