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dc.contributor.author
López, Dardo Rubén
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dc.contributor.author
Cavallero, Laura
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dc.contributor.author
Willems, Priscila
dc.contributor.author
Bestelmeyer, Brandon T.
dc.contributor.author
Brizuela, Miguel Angel
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dc.date.available
2023-06-16T17:19:53Z
dc.date.issued
2022-07
dc.identifier.citation
López, Dardo Rubén; Cavallero, Laura; Willems, Priscila; Bestelmeyer, Brandon T.; Brizuela, Miguel Angel; Degradation influences equilibrium and non-equilibrium dynamics in rangelands: implications in resilience and stability; Wiley Blackwell Publishing, Inc; Applied Vegetation Science; 25; 3; 7-2022; 1-19
dc.identifier.issn
1402-2001
dc.identifier.uri
http://hdl.handle.net/11336/200869
dc.description.abstract
Plant communities are structured by both equilibrium and non-equilibrium dynamics, which interact at different spatiotemporal scales. The influence of external factors on internal regulation processes might depend on ecological state, and thus, on system resilience. We asked if well-conserved (reference) states have higher resilience to external factors than degraded states, considering the greater capacity for self-regulation expected of reference states.Location: Graminous–subshrubby steppes of northern Patagonia, Argentina.Methods: During four years, we assessed the influence of an external factor (rainfall variability) on internal regulation processes (seedling recruitment, growth of main perennial species, and three resilience proxies) in two alternative states (one reference and another degraded) of graminous–subshrubby steppes of northern Patagonia (Argentina). Specifically, we assessed the response of alternative states to simulated high rainfall events (irrigation). The degraded state was more sensitive to rainfall variability than the reference state. Specifically, in the degraded state the density of surviving seedlings, the growth of shrubs and Papostipa speciosa’s relative tiller production and cover increased in response to irrigation; whereas seedling emergence and survival, and grass growth were low or even null without irrigation. Finally, resistance and elasticity were lower whereas malleability was greater in degraded than in reference states.Conclusions: The degraded state was less resilient (low resistance and elasticity; high malleability) to stochastic weather events (in response to either increases or decreases in water availability. In contrast, the reference state had a great capacity to respond to rainfall variability. However, demographic processes such as seedling recruitment and vegetative growth were compensated by competition and mortality, suggesting a lower sensitivity to external drivers, and thus, a greater stability. By influencing the balance between equilibrium and non-equilibrium dynamics, degradation might affect the resilience and stability of the ecosystem. Thus, to prevent rangeland degradation, management plans should anticipate climatically favorable and unfavorable periods.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALTERNATIVE STATES
dc.subject
AMPLITUDE
dc.subject
ELASTICITY
dc.subject
GRAZING
dc.subject
MALLEABILITY
dc.subject
RAINFALL EVENTS
dc.subject
RESISTANCE
dc.subject
STATES AND TRANSITIONS MODEL
dc.subject
THRESHOLDS
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Degradation influences equilibrium and non-equilibrium dynamics in rangelands: implications in resilience and stability
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-06-15T18:04:55Z
dc.journal.volume
25
dc.journal.number
3
dc.journal.pagination
1-19
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: López, Dardo Rubén. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi. Estación Forestal Villa Dolores; Argentina
dc.description.fil
Fil: Cavallero, Laura. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi. Estación Forestal Villa Dolores; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Willems, Priscila. Instituto Nacional de Tecnología Agropecuaria; Argentina
dc.description.fil
Fil: Bestelmeyer, Brandon T.. United States Department of Agriculture; Estados Unidos
dc.description.fil
Fil: Brizuela, Miguel Angel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
dc.journal.title
Applied Vegetation Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/avsc.12670
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/avsc.12670
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