Impacts of domestic cattle on forest and woody ecosystems in southern South America

Mazzini, Flávia; Relva, María Andrea; Malizia, Lucio R.

doi:10.1007/s11258-018-0846-y

Cited by 44 publications

(41 citation statements)

References 75 publications

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“…. Increase of invasive species biomass was reported by two studies (Smale et al, 2008;, while the opposite effect was reported by three studies Mazzini et al, 2018). Habitat heterogeneity, canopy species composition, invasive species or bryophytes were less studied (e.g.…”

Section: Overview Of the Impacts Of Grazing On Composition And Richnementioning

confidence: 93%

“…To our knowledge, there are only early or regional (Belsky and Blumenthal, 1997 -USA, the Interior West;Mazzini et al, 2018 -South America) reviews available on the vegetation impacts of livestock alone in temperate forests. We lack studies and understanding of the complex mechanisms (the impacts of different grazing regimes and interacting effects of grazing, trampling, manuring and forest history) that can give rise to different outcomes Kirby et al, 1994;Bernes et al, 2018;Mazzini et al, 2018). Such an understanding would help in planning and conducting targeted grazing for conservation management.…”

Section: Graphical Abstractmentioning

confidence: 99%

“… Future research needs to move on from simple comparisons of grazing vs. non-grazing situations (Kirby et al, 1994;Hester et al, 1996), to comparative, controlled and quantitative studies Mazzini et al, 2018;Fig. 3).…”

Section: Improving the Research And Practice Of Livestock Grazing In mentioning

confidence: 99%

See 2 more Smart Citations

Beyond the obvious impact of domestic livestock grazing on temperate forest vegetation – A global review

Öllerer

Varga

Kirby

et al. 2019

Biological Conservation

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Section: Overview Of the Impacts Of Grazing On Composition And Richnementioning

confidence: 93%

Section: Graphical Abstractmentioning

confidence: 99%

See 1 more Smart Citation

Beyond the obvious impact of domestic livestock grazing on temperate forest vegetation – A global review

Öllerer

Varga

Kirby

et al. 2019

Biological Conservation

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“…The smaller heights recorded for HS could be explained by the nutrient losses from annual burning. Besides, some species are sensitive to cattle trampling [43,44], e.g., HS evidenced a predominance of Paspalum parviflorum and Trachypogon vestitus more than LS (Table S2). This result indicates that cattle trampling by Bos indicus (~300 kg) had more significant impact reduction than fire on some graminoids of erect growth in dense tufts.…”

Section: The Effects Of Burning and Previous Grazing Intensity On Vegetation Composition And Structurementioning

confidence: 99%

Changes in Vegetation of Flooded Savannas Subject to Cattle Grazing and Fire in Plains of Colombia

Herrera

Ballera

Manríquez

et al. 2021

Land

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Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning. Regarding grazing, we classified the area according to the cattle stocking rate (Bos indicus ~300 kg): NG = non-grazed, LS = low stocking rate (0.5 ind ha−1 yr−1), and HS = high stocking rate (1.0 ind ha−1 yr−1). Controlled artificial burning was applied in all the area at the beginning of the study, and surveys were conducted in the same plots at pre-burn (t0) and four post-burn times (t1, t2, t3, t4), at 15, 45, 75 and 105 days after burning. Vegetation composition (species list, life-form, palatability) and structure (bare soil and vascular plant ground covers, species height and richness) were recorded at each sampling. Data were compared through ANOVAs and multivariate analyses. We found 53 species in total: 26 in the pre-burn treatment and 44 in the post-burn treatments, detecting an increase of 18 species considering all treatments. Seven natives and two exotic species represented the dominant cover (>50%). LS and HS had the highest number of palatable species in t0 (seven species) compared with NG (two species), but this became similar after burning (14 species in NG, 12 in LS, and 11 in HS). ANOVAs and multivariate analyses showed that plant assemblages were significantly different according to the grazing treatment, and more homogeneous in pre-burn than in post-burn periods. Cattle grazing favored higher covers of dominant palatable species (e.g., Axonopus purpusii) compared with NG, but many native species with high palatability only recovered within the system after burning. In the context of the current management proposals, the search for new alternatives other than intensive cattle grazing and burning is needed to reconcile human production activities, international commitments against climate change and biodiversity conservation in the savanna landscapes.

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“…altitudinal) conditioning the outcome of the competition–facilitation trajectory. Furthermore, livestock rearing may alter resource availability by defecation, create small‐scale physical disturbances by trampling and relax competition according to animals' foraging preferences (Mazzini, Relva, & Malizia, ; Mortensen et al, ). Finally, the effects of microsite conditions can be highly complex and the suitability of particular microsites for regeneration not only depends on their very nature (i.e.…”

Section: Introductionmentioning

confidence: 99%

Effects of altitude, land use and microsites on early life performance of a high mountain tree: Insights from an in situ sowing experiment

Cáceres

Schrieber

Lachmuth

et al. 2019

Diversity and Distributions

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Aim: Understanding the forces that drive range shifts in forest landscapes is imperative for predicting species distributions under anthropogenic climate and land use change. However, empirical studies exploring how these components jointly influence critical early life stages of mountain tree species across environmental gradients are scarce. We used the high mountain tree Polylepis australis as model species to investigate the relative importance of altitude and associated climatic conditions, land use for livestock and microsite characteristics on early life performance.Location: Córdoba Sierras, central Argentina. Methods:We set up an extensive in situ sowing experiment with a robust split-plot design that integrated spatial scales ranging from 0.4 m 2 subplots at the microsite level (associated with vegetative and microtopographic structures), to livestock exclosure and enclosure plots of several hectares, to an altitudinal gradient of 1,000 m.Components of early life performance were monitored across two subsequent growing seasons. Results: Microsite characteristics played a fundamental role in P. australis establishment, whereby interactions with altitude and/or land use suggested alternate mechanisms: facilitation (likely reduced desiccation) dominated at low altitude while at high altitude, abiotic stress (likely intensive frost and radiation) overruled any microsite effects. At mid-altitude, benefits of competition release prevailed over facilitation and microsite effects gained importance under livestock presence. Inconsistencies between pre-and post-emergence responses illustrated potential trade-offs between beneficial and detrimental effects of microsite conditions upon performance throughout early life: a favourable location for seeds may abruptly turn adverse for seedlings. Main conclusions:We unravel how changes in altitude, anthropogenic disturbances and microsite characteristics jointly modulate P. australis performance across stages of early establishment. Such information is fundamental when categorizing specific

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Impacts of domestic cattle on forest and woody ecosystems in southern South America

Cited by 44 publications

References 75 publications

Beyond the obvious impact of domestic livestock grazing on temperate forest vegetation – A global review

Beyond the obvious impact of domestic livestock grazing on temperate forest vegetation – A global review

Changes in Vegetation of Flooded Savannas Subject to Cattle Grazing and Fire in Plains of Colombia

Effects of altitude, land use and microsites on early life performance of a high mountain tree: Insights from an in situ sowing experiment

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