Linking ecosystem resistance, resilience, and stability in steppes of North Patagonia

López, Diana María; Brizuela, M. A.; Willems, Priscila; Aguiar, Martı́n R.; Siffredi, Guillermo Lorenzo; Bran, Donaldo

doi:10.1016/j.ecolind.2012.05.014

Cited by 84 publications

(95 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This type of response between functional indexes in relation to SDI was used for grasslands steppe in North Patagonia indicating that the overgrazing decreased the recruitment process of foundational or key species, and it could be associated with a loss of the ecosystem functional integrity (López et al 2013). Similarly, this approach allowed differentiation in the successional phases with high-and low-risk of degradation in recovery postfire of North Patagonia forests .…”

Section: Discussionmentioning

confidence: 99%

“…In this context, we recognize that the models (the METs in general and SFSTM in particular) represent a simplification of complex reality. Therefore, our approach aims to differentiate states of the forest with different resilience determined by their structure-functional integrity that needs different management practices (Briske et al 2005(Briske et al , 2006(Briske et al , 2008López et al 2011López et al , 2013 landscape level) if forests are dominated by highly (e.g. S-IV to S-VII) or less (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…A SDI was generated to establish the degree of structural forest degradation (López et al 2011(López et al , 2013. We used a matrix containing all the structural vegetation and soil variables (López et al 2011;Briske et al 2006) and calculated the Mahalanobis distance (MD) between plant community assessed (state and/or phase) (Legendre & Legendre 1998).…”

Section: Structural Degradation Index (Sdi)mentioning

confidence: 99%

“…A key property related to that objective is ecosystem resilience (Convention on Biological Diversity 2008). In this management context, tools that enable to identify thresholds associated with the loss of resilience and to determine the degree of vulnerability of an ecosystem to be degraded are needed (Briske et al 2006(Briske et al , 2008López et al 2013).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

State and transition model approach in native forests of Southern Patagonia (Argentina): linking ecosystem services, thresholds and resilience

Peri

López²,

Rusch

et al. 2017

International Journal of Biodiversity Science, Ecosystem Servic

Self Cite

View full text Add to dashboard Cite

The sustainable use of ñire forests requires knowledge of its dynamics and management to maintain long-term main forest ecosystem services. The aim of this work was to develop a structural-functional state and transition model for ñire forests in southern Patagonia. For this, provincial inventory information was analyzed together with information from permanent PEBANPA plots (plots of Ecology and Biodiversity, natural environments in Southern Patagonia) and studies of ecology and eco-physiology in ñire forests. This allowed the description of plant communities on these ecological sites and the history of natural disturbances. Seven states and 10 negative transitions were described, as well the factors that trigger transitions (levels of grazing, fire and intense logging). Mature forests with low grazing, no extractive activity and complete canopy cover (>70%) correspond to the reference state or condition of greater integrity, and grassland or murtillar (dominance of Empetrum rubrum) with forest loss is considered the most degraded state. Negative transitions determine the threshold crossings associated with the reduction or loss of resilience to the previous or original state. The development of state and transition models allows for early warnings of deterioration and is a tool to achieve more productive and environmental value. ARTICLE HISTORY

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Structural Degradation Index (Sdi)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

State and transition model approach in native forests of Southern Patagonia (Argentina): linking ecosystem services, thresholds and resilience

Peri

López²,

Rusch

et al. 2017

International Journal of Biodiversity Science, Ecosystem Servic

Self Cite

View full text Add to dashboard Cite

show abstract

“…Ecosystems are continually interfered by the external environment, either naturally or artificially. The stress-resilience capacity of the ecosystem was termed as resilience (López, D. R et al, 2013). In detail, it indicates the ability of an ecosystem to maintain its structure, function, and service after some interferences.…”

Section: （2）mentioning

confidence: 99%

Ecosystem Health Assessment of Mining Cities Based On Landscape Pattern

Liu

Lin

et al. 2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Ecosystem health assessment (EHA) is one of the most important aspects in ecosystem management. Nowadays, ecological environment of mining cities is facing various problems. In this study, through ecosystem health theory and remote sensing images in 2005, 2009 and 2013, landscape pattern analysis and Vigor-Organization-Resilience (VOR) model were applied to set up an evaluation index system of ecosystem health of mining city to assess the healthy level of ecosystem in Panji District Huainan city. Results showed a temporal stable but high spatial heterogeneity landscape pattern during [2005][2006][2007][2008][2009][2010][2011][2012][2013]. According to the regional ecosystem health index, it experienced a rapid decline after a slight increase, and finally it maintained at an ordinary level. Among these areas, a significant distinction was presented in different towns. It indicates that the ecosystem health of Tianjijiedao town, the regional administrative centre, descended rapidly during the study period, and turned into the worst level in the study area. While the Hetuan Town, located in the northwestern suburb area of Panji District, stayed on a relatively better level than other towns. The impacts of coal mining collapse area, land reclamation on the landscape pattern and ecosystem health status of mining cities were also discussed. As a result of underground coal mining, land subsidence has become an inevitable problem in the study area. In addition, the coal mining subsidence area has brought about the destruction of the farmland, construction land and water bodies, which causing the change of the regional landscape pattern and making the evaluation of ecosystem health in mining area more difficult. Therefore, this study provided an ecosystem health approach for relevant departments to make scientific decisions.

show abstract

Revision of a state‐and‐transition model to include descriptions of state functional attributes

et al. 2018

View full text Add to dashboard Cite

Abstract. Successful conservation of ecosystems and ecosystem services requires understanding the structural-functional relationships underlying resilience to disturbance pressures. State-and-transition models (STMs) are box-and-arrow diagrams conceptualizing system resilience, but many STMs lack functional descriptions. For a cattle-grazed sagebrush steppe ecosystem in northwestern Colorado, we aimed to update an existing STM by incorporating functional descriptions of the states to inform future hypotheses. In this STM, a diverse set of native perennial understory plants define a Diverse state, but long-term exclusion of disturbances to sagebrush results in a shift to a Depauperate state with increased bare ground interspaces and sagebrush dominance. We hypothesized that herbaceous species were inferior competitors to sagebrush over the long term for soil nitrogen. To examine evidence for this hypothesis, develop functional descriptions of the Diverse and Depauperate states, and identify more specific hypotheses for future studies, we measured the following: the mass, C:N, and distribution of the litter layer; nitrogen mineralization rates; nitrate pools; and soil attributes on plots classified as Diverse (n = 5) or Depauperate (n = 5). Plots in the Depauperate state had~20% higher soil bulk density, half the clay and soil moisture concentrations, and 30% lower percent soil nitrogen compared to Diverse state plots; litter layer patchiness was nearly three times greater on the Depauperate plots than on the Diverse plots, but there was no significant difference between states in mean litter layer mass or C:N. We detected no significant differences between states in nitrogen mineralization rates or nitrate pools. This may be due to our sampling design, which examined nitrogen transformation at the plot level rather than at microsites within the plots, or it may be that another resource such as soil moisture is more limiting than nitrogen. Differences in soil texture between plots in the Diverse and Depauperate states may indirectly influence the competitive interactions between sagebrush and native herbaceous understory by controlling available soil resources. These results suggest that the vulnerability of sagebrush steppe ecosystems to state changes may be dependent on soil texture, which is highly variable across this broadly distributed ecosystem. Based on these insights, we present a revised STM and propose future work.

show abstract

Linking ecosystem resistance, resilience, and stability in steppes of North Patagonia

Cited by 84 publications

References 52 publications

State and transition model approach in native forests of Southern Patagonia (Argentina): linking ecosystem services, thresholds and resilience

State and transition model approach in native forests of Southern Patagonia (Argentina): linking ecosystem services, thresholds and resilience

Ecosystem Health Assessment of Mining Cities Based On Landscape Pattern

Revision of a state‐and‐transition model to include descriptions of state functional attributes

Contact Info

Product

Resources

About