Legacies of afforestation on soil nematode community composition, structure, and diversity in a northern Canadian prairie

Coffey, Victory; Otfinowski, Rafael

doi:10.1007/s11104-018-03906-w

Cited by 14 publications

(5 citation statements)

References 52 publications

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“…Many studies have explored the responses of biodiversity to tree plantations based on both field experiments and meta‐analysis (Bohada‐Murillo et al, 2019; Coffey & Otfinowski, 2018; Ren et al., 2017; Spake et al., 2019; Veldman et al., 2015). Three aspects of our study distinguish it from previous syntheses.…”

Section: Discussionmentioning

confidence: 99%

A global meta‐analysis of the impacts of tree plantations on biodiversity

Wang

Zhang

et al. 2021

Global Ecol Biogeogr

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Aim Planted forests are becoming increasingly common world‐wide for a variety of reasons, including water conservation and carbon sequestration, although the effects of tree plantations on biodiversity are unclear with respect to whether planted ecosystems are “green deserts” or valuable habitats for biodiversity. Location Global. Time period 1980–2020. Taxa studied Flora, fauna and microorganisms. Methods By conducting a meta‐analysis of 361 observations from 138 sites world‐wide, we explored the global patterns and associated drivers of biodiversity responding to tree plantations by comparing biodiversity levels in plantations and adjacent habitats (primary or secondary forests). Results Overall, the biodiversity (species richness) and abundance across multitrophic levels in tree plantations were lower than those in primary forests, reached similar values to secondary succession, but varied with plantation and management regimes. Specifically, the biodiversity across multitrophic levels in reforestation was higher than that in afforestation; the biodiversity in mixed, native species and unmanaged plantations was higher than that in monoculture, exotic species and managed plantations. The diversity of vertebrates, invertebrates and plants in reforestation was lower than that in primary forests, whereas belowground biodiversity in reforestation showed no difference from primary forests. Invertebrate diversity in reforestation was lower than that in secondary succession, whereas plant diversity was higher than that in secondary succession. Moreover, the biodiversity in reforestation increased with reforestation age. Furthermore, structural equation models showed that aboveground faunal diversity in reforestation was driven by canopy coverage and plant diversity and that reforestation affected belowground biodiversity mainly by changing soil organic carbon. Main conclusions Our findings suggest that reforestation by planting mixed native species will be more beneficial to biodiversity. We reveal that biodiversity in intensively managed plantations is significantly lower than that in restoration‐oriented plantations. We highlight that primary forests are not replaceable, but that planted forests might be a reliable way to restore biodiversity rapidly.

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Section: Discussionmentioning

confidence: 99%

A global meta‐analysis of the impacts of tree plantations on biodiversity

Wang

Zhang

et al. 2021

Global Ecol Biogeogr

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“…In addition, another indicator taxa from uninvaded plots was the fungal feeder Doryllium. Uninvaded plots, compared to invaded and afforested areas, tend to have a higher proportion of fungal feeders [24,50,58], which leads to slower decomposition rates compared to bacterial dominated systems [59,60].…”

Section: Discussionmentioning

confidence: 99%

Community- and trophic-level responses of soil nematodes to removal of a non-native tree at different stages of invasion

et al. 2020

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Success of invasive non-native plant species management is usually measured as changes in the abundance of the invasive plant species or native plant species following invader management, but more complex trophic responses to invader removal are often ignored or assumed. Moreover, the effects of invader removal at different stages of the invasion process is rarely evaluated, despite a growing recognition that invader impacts are density or stage-dependent. Therefore, the effectiveness of invasive species management for restoring community structure and function across trophic levels remains poorly understood. We determined how soil nematode diversity and community composition respond to removal of the globally invasive tree species Pinus contorta at different stages of invasion by reanalysing and expanding an earlier study including uninvaded vegetation (seedlings removed continuously), early invader removal (saplings removed), late removal (trees removed), and no removal (invaded). These treatments allowed us to evaluate the stage-dependent belowground trophic responses to biological invasion and removal. We found that invaded plots had half the nematode taxa richness compared to uninvaded plots, and that tree invasion altered the overall composition of the nematode community. Differences in nematode community composition between uninvaded nematode communities and those under the tree removal strategy tended to dilute higher up the food chain, whereas the composition of uninvaded vs. sapling removal strategies did not differ significantly. Conversely, the composition of invaded compared to uninvaded nematode communities differed across all trophic levels, altering the community structure and function. Specifically, invaded communities were structurally simplified compared to uninvaded communities, and had a higher proportion of short life cycle nematodes, characteristic of disturbed environments. We demonstrate that a shift in management strategies for a globally invasive tree species from removing trees to earlier removal of saplings is needed for maintaining the composition and structure of soil nematode communities to resemble uninvaded conditions.

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“…In PD forest and MS grassland, the alterations in soil nematode communities were not significantly related to changes in soil properties but rather highly dependent on the outbreak of a particular genus that feeds on roots (or root symbiotic fungi). The planting of P. davidiana induced a substantial increase in the Pratylenchus genus and thus led to a dominance of plant-feeding nematodes, which negatively affected the structure and functioning of the soil food web and resulted in poor restoration of the soil ecosystem [27,83]. In MS grassland, abundant fungivorous nematodes, specifically Tylencholaimus, were potentially associated with the widespread symbiosis of M. sativa grass with AMF [77,79].…”

Section: Driving Forces Of Soil Nematode Communities Under Different ...mentioning

confidence: 99%

“…To date, numerous studies have addressed the effects of revegetation on soil nematode communities [24][25][26]. Previous results showed that soil nematode communities typically varied by the specific revegetation approach [25,[27][28][29], and their characteristics provide a critical assessment of restoration in plant communities and soil food webs [21,30].…”

Section: Introductionmentioning

confidence: 99%

Nematode Community Characteristics Indicate Soil Restoration under Different Revegetation Approaches in the Semiarid Area of the Chinese Loess Plateau

Huang,

Chen

et al. 2023

Forests

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Soil nematode communities can offer valuable indicators for monitoring the status of soil ecosystems. However, their potential for assessing soil restoration under revegetation has been neglected in temperate arid and semiarid areas. This study examined the characteristics of soil nematode communities and their relationships with soil physicochemical properties under five typical revegetation approaches in the semiarid Loess Plateau of China. The results showed that planting an artificial Caragana korshinskii forest led to the recovery of the soil food web, which significantly increased soil nematode abundance (138.10 ± 11.60 inds./100 g dry soil) and community diversity (Shannon-Wiener diversity: 2.48 ± 0.13; trophic diversity: 3.08 ± 0.02), associated with the high contents of SOC and NH4+-N. However, establishing an artificial Prunus sibirica forest improved neither soil properties nor nematode community characteristics, reflecting poor soil ecosystem restoration. After establishing an artificial Prunus davidiana forest (PD) and an artificial Medicago sativa grassland (MS), substantial increases in herbivorous and fungivorous nematodes were observed, respectively, likely due to the accumulation of particular genera that fed on roots (e.g., Pratylenchus) or their symbiotic fungi (e.g., Tylencholaimus), which might result in the deterioration (in MS) or restoration (in PD) of the soil food webs. Natural grassland restoration greatly improved soil properties (i.e., SOC, NH4+-N, microbial biomass carbon) but did not change the nematode community obviously, probably due to top-down predation in natural habitats. In conclusion, the characteristics of nematode communities can effectively indicate the restoration of soil food webs and identify their possible driving forces under revegetation, which have important implications for vegetation restoration in arid and semiarid regions.

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Legacies of afforestation on soil nematode community composition, structure, and diversity in a northern Canadian prairie

Cited by 14 publications

References 52 publications

A global meta‐analysis of the impacts of tree plantations on biodiversity

A global meta‐analysis of the impacts of tree plantations on biodiversity

Community- and trophic-level responses of soil nematodes to removal of a non-native tree at different stages of invasion

Nematode Community Characteristics Indicate Soil Restoration under Different Revegetation Approaches in the Semiarid Area of the Chinese Loess Plateau

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