Conservación de un área protegida con uso recreativo: ¿Se puede lograr que los visitantes dejen menos basura?

Cingolani, Ana M.; Barberá, Iván; Renison, Daniel; Barri, Fernando R.

doi:10.25260/ea.15.25.1.0.51

Cited by 7 publications

(16 citation statements)

References 25 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In southern Patagonia, land subdivision at the end of the XIX century and subsequently paddock layout were based on geometric principles rather than ecological considerations, and landscape heterogeneity was ignored in the process (Ormaechea, Peri, Cipriotti, & Distel, 2019). Due to livestock concentration in the most preferred places, paddocks often show a combination of highly degraded and sub‐utilized areas (Cingolani, Noy Meir, Renison, & Cabido, 2008; Valentine, 1947). Distribution of water sources and paddock size is typical determinants of domestic grazing heterogeneity (Oñatibia & Aguiar, 2018).…”

Section: Guanaco Distribution Livestock Grazing Heterogeneity and For...mentioning

confidence: 99%

Wild guanacos as scapegoat for continued overgrazing by livestock across southern Patagonia

Marino

Rodríguez

Schroeder

2020

Journal of Applied Ecology

View full text Add to dashboard Cite

1. In a recently published paper, Oliva et al. concluded that domestic grazing pressure across Patagonian rangelands approached carrying capacity due to decades of stock adjustment, but that guanaco overpopulation may have altered that balance. The authors argued that unless guanaco numbers are controlled, they will reduce forage available for domestic stock and will negatively affect rangelands. We consider that the herbivore-stock analysis presented is inaccurate and deserves revision, and that the stated conclusions lack empirical support. 2. When the spatial distribution of herbivores is accounted for in the Oliva et al. analysis, domestic stock is far above carrying capacity, indicating that domestic overgrazing continues. 3. Theoretical and empirical evidence on bottom-up regulation and competitive exclusion challenges the supposed guanaco overpopulation and the hypothetical reduction of forage available for livestock. 4. Even if guanaco numbers are reduced, grassland degradation and production losses will continue because their main drivers, domestic overstock and heterogeneous grazing, are still operating. 5. Synthesis and applications. Oversimplified models with poor ecological insight can lead to erroneous conclusions and misguide management decisions. The incorrect inference that Patagonian domestic stock is adjusted to carrying capacity could help to consolidate current domestic overgrazing by reducing incentives to improve livestock management practices. Regarding guanacos, a controversial species in an unfavourable context, control-oriented harvest without a clear justification threatens populations' viability and genuine attempts of productive diversification. Addressing relevant ecological processes, such as niche partitioning, competitive exclusion and population regulation, is essential to correctly assess joint carrying capacity in multi-herbivore systems, as well as to identify the true factors driving degradation processes and to optimize rangeland use on a sustainable basis.

show abstract

Section: Guanaco Distribution Livestock Grazing Heterogeneity and For...mentioning

confidence: 99%

Wild guanacos as scapegoat for continued overgrazing by livestock across southern Patagonia

Marino

Rodríguez

Schroeder

2020

Journal of Applied Ecology

View full text Add to dashboard Cite

show abstract

“…Livestock grazing may be necessary to maintain rangeland ecosystem structure and function when native wild herbivore populations are decimated or extinct, or if livestock presence is ancient in the ecosystem (Perevolotsky and Seligman, 1998;Cingolani et al, 2005aCingolani et al, , 2008a. In productive grasslands, the absence of grazing disturbance can lead to the dominance of a few large and competitive plant species, reducing alpha diversity (Milchunas et al, 1988;Osem et al, 2002;Cingolani et al, 2005aCingolani et al, , 2008aAltesor et al, 2006). Additionally, the accumulation of standing and dead biomass may alter fire regimes in undesired ways (Hobbs et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the accumulation of standing and dead biomass may alter fire regimes in undesired ways (Hobbs et al, 1991). Conversely, intense trampling by livestock, uneven animal distribution and excessive plant consumption can produce irreversible ecosystem degradation, even in productive ecosystems (Mwendera et al, 1997;Cingolani et al, 2005aCingolani et al, , 2008a. If not evolved under heavy grazing of large herbivores, productive ecosystems may collapse under livestock maintained at commercially optimal stocking rates (Diamond, 2005;Cingolani et al, 2005aCingolani et al, , 2008aLunt et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Since these findings reveal negative effects on ecosystem properties driven either by livestock exclusion or by high stocking rates, we surmised that the system is adapted to low or moderate grazing pressure, but not to the high grazing pressures exerted by livestock in large portions of the area (Cingolani et al, 2008b). Therefore, we hypothesized that low or moderate livestock grazing pressures can mimic the pre-hispanic herbivore grazing, preserving the mosaic of physiognomic types necessary to sustain landscape plant diversity and wildlife (Cingolani et al, 2008a(Cingolani et al, , 2010. We tested this hypothesis by tracking physiognomic changes under different livestock grazing pressures for five years.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Can livestock grazing maintain landscape diversity and stability in an ecosystem that evolved with wild herbivores?

Cingolani

Vaieretti

Giorgis

et al. 2014

Perspectives in Plant Ecology, Evolution and Systematics

View full text Add to dashboard Cite

“…Firstly, grazing pressure may be moderated enough not to modify vegetation structure and functionality [5,[33][34][35]. Secondly, given that Puna environments have evolved under a long grazing history [36], it is expected that vegetation diversity is not drastically altered by grazing pressure and that livestock grazing is compatible with biodiversity conservation [32,[37][38][39][40]. Moreover, arid and semi-arid sites often exhibit minimal responses to herbivory pressure, possibly because the vegetation has evolved traits to escape drought that are often similar to traits that avoid grazing [23,41].…”

Section: Plant Functional Types and Grazing Pressure Indexmentioning

confidence: 99%

Grazing Pressure and Plant Functional Types in Puna Highlands, Northwestern Argentina

Mariana,

Andrés

2024

Phyton

View full text Add to dashboard Cite

The Puna grasslands support grazing systems that produce meat and wool in multi-species herds, especially from llama (Lama glama) and sheep. However, it is yet unknown whether grazing pressure can modify grassland structure and Plant Functional Types diversity and cover in Puna grasslands. We analyzed the relationship between grazing pressure and Plant Functional Types by comparing transects located near stockyards (high grazing pressure) and far from them (low pressure) and by evaluating the relationship between the Plant Functional Types cover to a Grazing Pressure Index (GPI). This index incorporates the heterogeneity of traditional pastoral management. At two ecological sites (Ciénego and Tolar), we sampled paired transects (near-far). Plots near and far from corrals were similar in all the variables measured except for plots in Tolar, which tend to have higher total cover, possibly due to fecal fertilization near stockyards. Furthermore, we recorded an increase in total cover and grass cover at higher GPI in Ciénego, while in Tolar we found lower values of total cover and herbaceous dicotyledonous cover at intermediate intensities of GPI. The only negative relationship found was the cover of clonal and non-clonal shrubs, possibly explained by the greater use of these shrubs as firewood near stockyards. In summary, our study does not show important changes in Plant Functional Types as a function of grazing pressure in the studied grasslands probably because grazing pressure is diluted or diminished when livestock rotates in different areas and grazing durations vary. Finally, the long grazing history with which the Puna has evolved could also contribute to the co-structuration between native vegetation and livestock farming.

show abstract

Conservación de un área protegida con uso recreativo: ¿Se puede lograr que los visitantes dejen menos basura?

Cited by 7 publications

References 25 publications

Wild guanacos as scapegoat for continued overgrazing by livestock across southern Patagonia

Wild guanacos as scapegoat for continued overgrazing by livestock across southern Patagonia

Can livestock grazing maintain landscape diversity and stability in an ecosystem that evolved with wild herbivores?

Grazing Pressure and Plant Functional Types in Puna Highlands, Northwestern Argentina

Contact Info

Product

Resources

About