Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia

Autores
Oliva, Gabriel Esteban; Paredes, Paula Natalia; Ferrante, Daniela; Cepeda, Carla Tamara; Rabinovich, Jorge Eduardo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
1.Carrying capacity is the maximum animal density an area can sustain without deterioration of its resources. Overgrazing has degraded Patagonia, but sheep stocks decreased and gave way to mixed systems with cattle, goats and guanacos (native wild camelids). 2.The objective of this paper was to develop a method to estimate carrying capacity based on remotely sensed data, and to assess wild and domestic herbivore numbers in order to establish if grazing stocks have evolved to balance with carrying capacity. 3.Net Primary Productivity (NPP) MOD17/A3 images and field Aerial Net Primary Productivity (ANPP) data of 66 sites were linearly regressed (R2= 0.83, P<0.01), and the slope 0.236 used to convert MOD17/A3 NPP to ANPP. Harvest index (proportion of ANPP that may be sustainably consumed) was estimated as a function of ANPP and carrying capacity as a consumable forage/ estimated annual consumption, set at 500 (sheep and goats), 3200 (cattle) and 750 kg Dry Matter.head−1.year−1 (guanacos). 4.Regional ANPP±SD (2000‐2015) was 758±52 kg Dry Matter ha−1.yr−1 and Harvest index 13.7±0.6%. Regional carrying capacity was 14.8±1.6 M sheep or goats, 2.3±0.3 M cattle or 9.9±1.2 M guanacos. 5.Domestic stock was high from 1920 to 1980, but declined thereafter and remained mostly within 1SD of mean 2000‐2015 carrying capacity. In this century annual provincial stocks and carrying capacity correlated well (R²= 0.94, p<0.01) with a slope close to 1. 6.Guanacos increased from 0.5 M to 2 M between 2000‐2015, driving linearly combined grazing pressures 36 and 62% above carrying capacity in southern Patagonia provinces in 2015. 7.Synthesis and applications. From the year 2000, after decades of sheep overstocking, domestic stock have shown a regional trend towards a grazing equilibrium, but growth of guanacos might have upset that trend. Participation of guanacos as a critical excess in total grazing pressure is debatable, but management of these populations is necessary and may be increasingly attractive if combined production systems are developed to incorporate wild meat and fibre. Our method,MOD17/A3 enables a carrying capacity evaluation and stock adjustment in these unique mixed grazing systems, preventing further rangeland degradation and loss of ecosystem services.
EEA Santa Cruz
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Cepeda, Carla Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina
Fil: Rabinovich, Jorge Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Centro de Estudios Parasitologicos y de Vectores. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
Fuente
Journal of applied ecology (29 April 2019)
Materia
Rangelands
Harvest Index
Ecosystem Services
Carrying Capacity
Mixed Grazing
Tierras de Pastos
Indice de Cosecha
Guanaco
Servicios de los Ecosistemas
Capacidad de Carga
Pastoreo Mixto
MOD17/A3
Herbivore Destocking
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/5142
Acceder
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oai_identifier_str oai:localhost:20.500.12123/5142
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing PatagoniaOliva, Gabriel EstebanParedes, Paula NataliaFerrante, DanielaCepeda, Carla TamaraRabinovich, Jorge EduardoRangelandsHarvest IndexEcosystem ServicesCarrying CapacityMixed GrazingTierras de PastosIndice de CosechaGuanacoServicios de los EcosistemasCapacidad de CargaPastoreo MixtoMOD17/A3Herbivore Destocking1.Carrying capacity is the maximum animal density an area can sustain without deterioration of its resources. Overgrazing has degraded Patagonia, but sheep stocks decreased and gave way to mixed systems with cattle, goats and guanacos (native wild camelids). 2.The objective of this paper was to develop a method to estimate carrying capacity based on remotely sensed data, and to assess wild and domestic herbivore numbers in order to establish if grazing stocks have evolved to balance with carrying capacity. 3.Net Primary Productivity (NPP) MOD17/A3 images and field Aerial Net Primary Productivity (ANPP) data of 66 sites were linearly regressed (R2= 0.83, P<0.01), and the slope 0.236 used to convert MOD17/A3 NPP to ANPP. Harvest index (proportion of ANPP that may be sustainably consumed) was estimated as a function of ANPP and carrying capacity as a consumable forage/ estimated annual consumption, set at 500 (sheep and goats), 3200 (cattle) and 750 kg Dry Matter.head−1.year−1 (guanacos). 4.Regional ANPP±SD (2000‐2015) was 758±52 kg Dry Matter ha−1.yr−1 and Harvest index 13.7±0.6%. Regional carrying capacity was 14.8±1.6 M sheep or goats, 2.3±0.3 M cattle or 9.9±1.2 M guanacos. 5.Domestic stock was high from 1920 to 1980, but declined thereafter and remained mostly within 1SD of mean 2000‐2015 carrying capacity. In this century annual provincial stocks and carrying capacity correlated well (R²= 0.94, p<0.01) with a slope close to 1. 6.Guanacos increased from 0.5 M to 2 M between 2000‐2015, driving linearly combined grazing pressures 36 and 62% above carrying capacity in southern Patagonia provinces in 2015. 7.Synthesis and applications. From the year 2000, after decades of sheep overstocking, domestic stock have shown a regional trend towards a grazing equilibrium, but growth of guanacos might have upset that trend. Participation of guanacos as a critical excess in total grazing pressure is debatable, but management of these populations is necessary and may be increasingly attractive if combined production systems are developed to incorporate wild meat and fibre. Our method,MOD17/A3 enables a carrying capacity evaluation and stock adjustment in these unique mixed grazing systems, preventing further rangeland degradation and loss of ecosystem services.EEA Santa CruzFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Cepeda, Carla Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; ArgentinaFil: Rabinovich, Jorge Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Centro de Estudios Parasitologicos y de Vectores. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaWiley; British Ecological Society2019-05-17T14:02:48Z2019-05-17T14:02:48Z2019-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/5142https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.134081365-2664https://doi.org/10.1111/1365-2664.13408Journal of applied ecology (29 April 2019)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:16:57Zoai:localhost:20.500.12123/5142instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:16:57.391INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
title Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
spellingShingle Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
Oliva, Gabriel Esteban
Rangelands
Harvest Index
Ecosystem Services
Carrying Capacity
Mixed Grazing
Tierras de Pastos
Indice de Cosecha
Guanaco
Servicios de los Ecosistemas
Capacidad de Carga
Pastoreo Mixto
MOD17/A3
Herbivore Destocking
title_short Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
title_full Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
title_fullStr Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
title_full_unstemmed Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
title_sort Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
dc.creator.none.fl_str_mv Oliva, Gabriel Esteban
Paredes, Paula Natalia
Ferrante, Daniela
Cepeda, Carla Tamara
Rabinovich, Jorge Eduardo
author Oliva, Gabriel Esteban
author_facet Oliva, Gabriel Esteban
Paredes, Paula Natalia
Ferrante, Daniela
Cepeda, Carla Tamara
Rabinovich, Jorge Eduardo
author_role author
author2 Paredes, Paula Natalia
Ferrante, Daniela
Cepeda, Carla Tamara
Rabinovich, Jorge Eduardo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Rangelands
Harvest Index
Ecosystem Services
Carrying Capacity
Mixed Grazing
Tierras de Pastos
Indice de Cosecha
Guanaco
Servicios de los Ecosistemas
Capacidad de Carga
Pastoreo Mixto
MOD17/A3
Herbivore Destocking
topic Rangelands
Harvest Index
Ecosystem Services
Carrying Capacity
Mixed Grazing
Tierras de Pastos
Indice de Cosecha
Guanaco
Servicios de los Ecosistemas
Capacidad de Carga
Pastoreo Mixto
MOD17/A3
Herbivore Destocking
dc.description.none.fl_txt_mv 1.Carrying capacity is the maximum animal density an area can sustain without deterioration of its resources. Overgrazing has degraded Patagonia, but sheep stocks decreased and gave way to mixed systems with cattle, goats and guanacos (native wild camelids). 2.The objective of this paper was to develop a method to estimate carrying capacity based on remotely sensed data, and to assess wild and domestic herbivore numbers in order to establish if grazing stocks have evolved to balance with carrying capacity. 3.Net Primary Productivity (NPP) MOD17/A3 images and field Aerial Net Primary Productivity (ANPP) data of 66 sites were linearly regressed (R2= 0.83, P<0.01), and the slope 0.236 used to convert MOD17/A3 NPP to ANPP. Harvest index (proportion of ANPP that may be sustainably consumed) was estimated as a function of ANPP and carrying capacity as a consumable forage/ estimated annual consumption, set at 500 (sheep and goats), 3200 (cattle) and 750 kg Dry Matter.head−1.year−1 (guanacos). 4.Regional ANPP±SD (2000‐2015) was 758±52 kg Dry Matter ha−1.yr−1 and Harvest index 13.7±0.6%. Regional carrying capacity was 14.8±1.6 M sheep or goats, 2.3±0.3 M cattle or 9.9±1.2 M guanacos. 5.Domestic stock was high from 1920 to 1980, but declined thereafter and remained mostly within 1SD of mean 2000‐2015 carrying capacity. In this century annual provincial stocks and carrying capacity correlated well (R²= 0.94, p<0.01) with a slope close to 1. 6.Guanacos increased from 0.5 M to 2 M between 2000‐2015, driving linearly combined grazing pressures 36 and 62% above carrying capacity in southern Patagonia provinces in 2015. 7.Synthesis and applications. From the year 2000, after decades of sheep overstocking, domestic stock have shown a regional trend towards a grazing equilibrium, but growth of guanacos might have upset that trend. Participation of guanacos as a critical excess in total grazing pressure is debatable, but management of these populations is necessary and may be increasingly attractive if combined production systems are developed to incorporate wild meat and fibre. Our method,MOD17/A3 enables a carrying capacity evaluation and stock adjustment in these unique mixed grazing systems, preventing further rangeland degradation and loss of ecosystem services.
EEA Santa Cruz
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Paredes, Paula Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Cepeda, Carla Tamara. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina
Fil: Rabinovich, Jorge Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Centro de Estudios Parasitologicos y de Vectores. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; Argentina
description 1.Carrying capacity is the maximum animal density an area can sustain without deterioration of its resources. Overgrazing has degraded Patagonia, but sheep stocks decreased and gave way to mixed systems with cattle, goats and guanacos (native wild camelids). 2.The objective of this paper was to develop a method to estimate carrying capacity based on remotely sensed data, and to assess wild and domestic herbivore numbers in order to establish if grazing stocks have evolved to balance with carrying capacity. 3.Net Primary Productivity (NPP) MOD17/A3 images and field Aerial Net Primary Productivity (ANPP) data of 66 sites were linearly regressed (R2= 0.83, P<0.01), and the slope 0.236 used to convert MOD17/A3 NPP to ANPP. Harvest index (proportion of ANPP that may be sustainably consumed) was estimated as a function of ANPP and carrying capacity as a consumable forage/ estimated annual consumption, set at 500 (sheep and goats), 3200 (cattle) and 750 kg Dry Matter.head−1.year−1 (guanacos). 4.Regional ANPP±SD (2000‐2015) was 758±52 kg Dry Matter ha−1.yr−1 and Harvest index 13.7±0.6%. Regional carrying capacity was 14.8±1.6 M sheep or goats, 2.3±0.3 M cattle or 9.9±1.2 M guanacos. 5.Domestic stock was high from 1920 to 1980, but declined thereafter and remained mostly within 1SD of mean 2000‐2015 carrying capacity. In this century annual provincial stocks and carrying capacity correlated well (R²= 0.94, p<0.01) with a slope close to 1. 6.Guanacos increased from 0.5 M to 2 M between 2000‐2015, driving linearly combined grazing pressures 36 and 62% above carrying capacity in southern Patagonia provinces in 2015. 7.Synthesis and applications. From the year 2000, after decades of sheep overstocking, domestic stock have shown a regional trend towards a grazing equilibrium, but growth of guanacos might have upset that trend. Participation of guanacos as a critical excess in total grazing pressure is debatable, but management of these populations is necessary and may be increasingly attractive if combined production systems are developed to incorporate wild meat and fibre. Our method,MOD17/A3 enables a carrying capacity evaluation and stock adjustment in these unique mixed grazing systems, preventing further rangeland degradation and loss of ecosystem services.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-17T14:02:48Z
2019-05-17T14:02:48Z
2019-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/5142
https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.13408
1365-2664
https://doi.org/10.1111/1365-2664.13408
url http://hdl.handle.net/20.500.12123/5142
https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.13408
https://doi.org/10.1111/1365-2664.13408
identifier_str_mv 1365-2664
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley; British Ecological Society
publisher.none.fl_str_mv Wiley; British Ecological Society
dc.source.none.fl_str_mv Journal of applied ecology (29 April 2019)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.982451

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