Herbaceous species diversity in relation to fire severity in Zagros oak forests, Iran

Pourreza, Morteza; Hosseini, Seyed Mohsen; Sinegani, Ali Akbar Safari; Matinizadeh, Mohammad; Alavai, Seyed Jalil

doi:10.1007/s11676-014-0436-3

Cited by 20 publications

(9 citation statements)

References 41 publications

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“…Increasing the proportion of low-to moderate-severity fire on the landscape is likely also beneficial for soils (Certini, 2005), plants (Pourreza et al, 2014;Richter et al, 2019), trees (Dunn et al, 2020), and other wildlife (Furnas et al, 2022;Kramer et al, 2021;Taillie et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†

Tarbill,

White,

Sollmann

2023

Ecology and Evolution

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Many fire‐prone forests are experiencing wildfires that burn outside the historical range of variation in extent and severity. These fires impact pollinators and the ecosystem services they provide, but how the effects of fire are mediated by burn severity in different habitats is not well understood. We used generalized linear mixed models in a Bayesian framework to model the abundance of pollinators as a function of burn severity, habitat, and floral resources in post‐fire, mid‐elevation, conifer forest, and meadow in the Sierra Nevada, California. Although most species‐level effects were not significant, we found highly consistent negative impacts of burn severity in meadows where pollinators were most abundant, with only hummingbirds and some butterfly families responding positively to burn severity in meadows. Moderate‐severity fire tended to increase the abundance of most pollinator taxa in upland forest habitat, indicating that even in large fires that burn primarily at high‐ and moderate‐severity patches may be associated with improved habitat conditions for pollinator species in upland forest. Nearly all pollinator taxa responded positively to floral richness but not necessarily to floral abundance. Given that much of the Sierra Nevada is predicted to burn at high severity, limiting high‐severity effects in meadow and upland habitats may help conserve pollinator communities whereas low‐ to moderate‐severity fire may be needed in both systems.

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Section: Discussionmentioning

confidence: 99%

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†

Tarbill,

White,

Sollmann

2023

Ecology and Evolution

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“…Long-term attraction of herbivores could also relate to changes in forage composition after fire. Fire may facilitate the growth of palatable species (Greene et al 2012) or increase species diversity (Savadogo et al 2007) by creating open microsites for plant establishment (Morgan 1998;Pourreza et al 2014), altering the soil environment (Marion et al 1991;Neff et al 2005) and triggering germination of seed-banking species (Keeley 1991;Brown and van Staden 1997;Crosti et al 2006). This increase in floristic diversity may result in higher density and diversity of faunal assemblage (Elliott et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Spatial scales influence long-term response of herbivores to prescribed burning in a savanna ecosystem

Kimuyu

Sensenig

Chira

et al. 2017

Int. J. Wildland Fire

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Both wild and prescribed fire in savanna ecosystems influence habitat use by herbivores by creating or maintaining spatial and temporal heterogeneity in forage quality and vegetation cover. Yet little is known about how spatial scales influence long-term persistence of fire effects. We examined changes over a 6-year period in herbivore preference for experimentally burned patches that varied in spatial extent and grain. Avoidance for the burns by elephants and preference for the burns by impala and Grant’s gazelle decreased significantly. For the rest of the species (zebra, eland, oryx, hartebeest, warthog and hare), there were no significant changes in preference for the burns. Changes in preference for the burned areas depended on the spatial extent and grain of the burn, with intermediate-size (9-ha) burns and large (8-ha) patchy burns being more preferred 6–7 years after fire. Grain, but not the spatial extent of the burned area, influenced changes in grass height. Fire resulted in a delayed reduced tree density irrespective of the spatial scale of the burn. Results of this study indicate that, depending on the scale of fire prescription, the impacts of fire on herbivores may last longer than previous studies suggest.

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“…Низовые пожары разной интенсивности влияют на растительность неодинаково (Pourreza et al, 2014;Иванова и др., 2018). Выделяют пожары низкой, средней и высокой интенсивности -они отличаются степенью прогорания подстилки и почвы.…”

Section: /76unclassified

Wildfires as a Factor of the Loss of Biodiversity and Functions of Forest Ecosystems

Geraskina¹,

Тебенькова²,

Ershov³

et al. 2021

FSI

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Due to ever-increasing anthropogenic impact and global climate change, wildfires are becoming more frequent and intense all over the world. The wildfire factor is turning into an acute problem for forested countries that requires prompt solutions as the areas of forest ecosystems are reducing catastrophically, which results in an irreparable loss of biodiversity that provides all ecosystem functions and forest services. Many biologists consider wildfires a factor destructive to biota that results in permanent loss of some species and groups of living organisms; even if it is possible for them to recover after a wildfire, they may need a lot of time to do so. However, some studies argue that not only do wildfires reduce the biodiversity in forest ecosystems, but they also increase it, thus contributing to species conservation and sustainable functioning of forests. This article is aimed at analyzing the works that study how wildfires impact the main components, biodiversity, and functions of forest ecosystems. The authors answer the question why wildfires, while being an obvious destruction factor, are sometimes considered a factor for increase in biodiversity. The “positive” influence wildfires have on biodiversity can mostly be reduced to mosaic patterns, that is, forest canopy gaps that occur after a wildfire. However, reference analysis shows that the persistent opinion found in a number of works that a certain frequency of wildfires is necessary to maintain forest communities may be associated with ignored or misunderstood importance of biotic factors in the functioning of forests. In contemporary forest ecosystems, populations of key large mammal species disappeared or are greatly reduced; therefore, there are no microsites they usually form, including large forest canopy leaps (gaps, glades) that provide both opportunities for photophilous flora and pollinating insects to develop and generally sufficient conditions for multi-aged polydominant forest ecosystems with high biodiversity. In the forestry practice, measures are known to maintain mosaics. They include special types of felling, supporting populations of key animal species, etc., and are both significantly less catastrophic in comparison with the wildfire factor and substantiated biologically. The authors provide recommendations for the conservation and maintenance of biodiversity and ecosystem functions in contemporary forests.

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Herbaceous species diversity in relation to fire severity in Zagros oak forests, Iran

Cited by 20 publications

References 41 publications

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†

Spatial scales influence long-term response of herbivores to prescribed burning in a savanna ecosystem

Wildfires as a Factor of the Loss of Biodiversity and Functions of Forest Ecosystems

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Herbaceous species diversity in relation to fire severity in Zagros oak forests, Iran

Cited by 20 publications

References 41 publications

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness†

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness†

Spatial scales influence long-term response of herbivores to prescribed burning in a savanna ecosystem

Wildfires as a Factor of the Loss of Biodiversity and Functions of Forest Ecosystems

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Product

Resources

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Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness^†