Influence of repeated fertilization and cattle grazing on forest ecosystems: Abundance and diversity of forest-floor small mammals

Sullivan, Thomas P.; Sullivan, Druscilla S.; Lindgren, Pontus M.F.

doi:10.1016/j.foreco.2012.03.037

Cited by 11 publications

(5 citation statements)

References 90 publications

(121 reference statements)

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“…In young lodgepole pine stands, Sullivan et al (2012) reported no effect of thinning treatments on herb biomass attributed to relatively open canopy conditions in all stands. In a study of Ponderosa pine ecosystem, Bakker and Moore (2016) reported limited effect of thinning on understory herb biomass attributed to increased woody understory growth following thinning.…”

Section: Understory Productivitymentioning

confidence: 80%

“…With regard to the lack of overstory cover influence on herb biomass in our system, we propose that grazing was responsible for compensating overstory thinning effect on herbaceous understory through increased consumption rate in thinned patches with higher herb productivity (Sullivan et al 2012;Bakker and Moore 2016). In the ungrazed areas, however, it was the accelerated woody understory growth which occurred in thinned areas that compensated for the lower overstory cover, keeping the herbaceous vegetation under strong competitive pressure (Harrington 2011).…”

Section: Understory Productivitymentioning

confidence: 87%

“…In both cases, the minor grazing effect was explained by low grazing pressure. In young lodgepole pine (Pinus contorta) stands in south-central British-Columbia (380-900 mm year −1 ), Sullivan et al (2012) found that cattle grazing exclusion, for 10 years, had no effect on herb biomass in low productivity plots but increased it significantly in fertilized plots. This variation was attributed to differences in grazing intensity, i.e., grazing was more intense in the fertilized plots were herb production was greater.…”

Section: Understory Productivitymentioning

confidence: 99%

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Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations

Osem

Fogel

Moshe

et al. 2017

Annals of Forest Science

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& Key message Cattle grazing and overstory cover restrict understory growth and interact in shaping the understory community structure in Mediterranean conifer plantations. & Context Understanding how silvicultural manipulations drive understory structure and function in Mediterranean pine plantations is essential for their multifunctional management. & Aims This paper aims to study the interactive effects of cattle grazing and overstory thinning on understory structure and function. & Methods Ten plots (0.25 ha) were selected in East M e d i t e r r a n e a n m a t u r e P i n u s b r u t i a p l a n t a t i o n (rainfall = 600 mm year − 1) representing thinned (≈100 trees ha −1 , leaf area index (LAI) ≈ 1.6) and non-thinned (≈230 trees ha −1 , LAI ≈ 3.5) areas. Two subplots (100 m 2) within each plot were fenced in 2000 and 2006 while a third one remained grazed. Understory growth and species composition were measured in 2010. & Results Thinning and grazing exclusion both positively influenced woody growth with their combined effect during 10 years leading to 20-fold increase in vegetation volume. An increase (15-fold) in herbaceous biomass was recorded 4 years after grazing exclusion but disappeared 10 years after exclusion due to increased woody cover. Species richness was not influenced by grazing but was positively affected by thinning. Understory composition was affected by grazing × thinning interaction with herbaceous ephemerals and short woody species being more frequent in grazed, thinned areas while larger woody species were more associated with ungrazed, non-thinned areas. & Conclusion Grazing impacts on forest understories depend on overstory cover. We propose variable grazing-thinning combinations to meet multiple management objectives.

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Section: Understory Productivitymentioning

confidence: 80%

Section: Understory Productivitymentioning

confidence: 87%

Section: Understory Productivitymentioning

confidence: 99%

See 1 more Smart Citation

Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations

Osem

Fogel

Moshe

et al. 2017

Annals of Forest Science

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“…The authors note this result was unexpected, and they suggest that given the motility dynamics of coliform bacteria, it is possible that this response was not fecal coliform from the sheep but rather wild fauna (Boyer & Neel, 2010). It may have been simply a localized response, but changes in wildlife abundance and composition because of altered habitat has been a noted, albeit understudied, effect of silvopasture systems (Sullivan et al., 2012; Tarbox et al., 2018). Additionally, the topography of a silvopasture site has been shown to influence soil nutrient deposition and subsurface water dynamics, which likely impacts the nutrient cycling of the system and subsequent effects on water quality (Adhikari et al., 2018).…”

Section: Urban Livestock Keeping In the United Statesmentioning

confidence: 99%

Small‐scale silvopasture: Addressing urban and peri‐urban livestock challenges in the United States with agroforestry practices

Conway-Anderson

Nieman

2022

Urban Agric & Regnl Food Sys

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The growing urban and peri-urban populations around the world creates strain on food and environmental security. Alleviation of these stressors may be possible by enhancing regional food production and ecosystem services provided by urban and peri-urban agriculture (UPA). Despite the growing popularity of UPA in the United States, incorporating livestock in these settings is challenging. A review of the literature identified three key barriers to adoption of urban and peri-urban livestock keeping that have the potential to be ameliorated using agroforestry practices to facilitate integration: animal feed resources, water quality and nutrient cycling, and use of sites contaminated with heavy metals. A discussion focused on the solutions to those barriers resulted in two theoretical silvopasture systems; we propose one for the urban setting and another for the peri-urban setting. We have determined small-scale livestock keeping provides a potential strategy to meet the demands of growing urban and peri-urban environments, but sustainable and effective integration of livestock under these conditions must be considered to mitigate environmental risks associated with urban livestock keeping. Urban silvopasture has the potential to enhance specialty crop and niche food production in these environments. Future research should seek to better understand small-scale silvopasture at the whole-system level in a variety of resource contexts and with local species and practices.

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“…The number of species, structure and spatial heterogeneity of their communities are those markers that allow us to evaluate the effects of anthropogenic impact on natural complexes by zoological methods [5]. Of particular interest are the responsiveness of rodents to changes in life conditions, manifested particularly in fluctuations in their numbers and the transformation of the hierarchical structure of communities [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Impact of agrocenoses on the populations of small mammals of recreational pine forests in the Tom River Valley

et al. 2020

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The paper is devoted to studying the influence of agricultural land on the formation of small mammal communities in the pine forests of the Tom River Valley. For the analysis, we took sites of natural and artificial pine forests of different areas experiencing various anthropogenic pressures. It was revealed that species composition, species richness and species diversity of small mammalian communities depend on a whole complex of factors. Thus, the population of right-bank forests is largely determined by the influence of mountain-taiga complexes of mammals in the adjacent territories. Cutting down taiga forests and using the vacant spaces for agricultural purposes lead to the introduction of species that prefer open biotopes to the initial community. A correlation was found between the size of the pine forest and its resistance to invasive species. The creation of artificial pine forests in the forest-steppe does not lead to the formation of typical forest communities of small mammals, due to their limited ability to resettle. Quite extensive, but to varying degrees isolated natural and artificial pine forests within the city and along the boundaries of the city are unique ecological “islands” that play a significant role in maintaining the diversity of the urban fauna ofmammals.

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Influence of repeated fertilization and cattle grazing on forest ecosystems: Abundance and diversity of forest-floor small mammals

Cited by 11 publications

References 90 publications

Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations

Understory structure and function following release from cattle grazing and overstory thinning in Mediterranean conifer plantations

Small‐scale silvopasture: Addressing urban and peri‐urban livestock challenges in the United States with agroforestry practices

Impact of agrocenoses on the populations of small mammals of recreational pine forests in the Tom River Valley

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