GLMM BACI environmental impact analysis shows coastal dune restoration reduces seed predation on an endangered plant

Pardini, Eleanor A.; Parsons, Lorraine S.; Ștefan, Valentin; Knight, Tiffany M.

doi:10.1111/rec.12678

Cited by 14 publications

(11 citation statements)

References 19 publications

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“…[1,[8][9][10]. Globally this has led to substantial increases in dune fixation (stabilization) and a significant loss of naturally mobile (shifting) dunes [11][12][13][14][15][16]. Restoration strategies for coastal dune systems are complex because sandy dunes are exposed to multiple dynamic processes that operate on different temporal and spatial scales [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Flora and fauna found on mobile dunes are often psammophilic, endemic species, highly adapted to harsh, xeric sandy conditions, and often form unique assemblages [6,[26][27][28][29][30][31]. Several researchers recognize that dune fixation, whether through succession or intentional re-establishment, can result in adverse consequences for mobile dune species [14,24,25,32,33]. In fact, a review of coastal management actions reported that dune fixation always had a negative impact on coastal species diversity, either through species loss or increase (e.g., invasive species), or changes in composition [19].…”

Section: Introductionmentioning

confidence: 99%

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Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?

et al. 2020

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Coastal dune habitats have been declining globally over the last several decades due to rapid urbanization. Within remaining dune systems, dune fixation has resulted in further losses of mobile dunes with negative impacts on their associated species. Some studies suggest vegetation removal can initially promote habitat heterogeneity, and increase availability of suitable habitats for psammophile, xeric and endemic mobile dune species, but longer-term responses are generally unknown. We investigated the temporal trends of four taxonomic groups to determine the effect of vegetation removal on dune assemblages over a 12-year period at an LTER site. Three different forms of removal are investigated here—removal in a grid form on fixed dunes, removal of the wind-facing slope vegetation on semi-fixed dunes and opportunistic off-road driving on disturbed dunes. Results were varied across taxa, highlighting the need for multi-taxa monitoring in conservation and restoration management. Overall, fixed dune treatment had very little effect, while a stronger response was found in semi-fixed treatments in particular for mobile dune indicator species, which showed evidence of recolonization within a few years following treatment. Disturbed dunes were most similar to mobile dunes for animal taxa indicating that pulse removal may not be as effective as continuous press disturbance. Nevertheless, a less destructive form of disturbance such as re-introduction of grazing might be preferable and requires further investigation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?

et al. 2020

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“…It was infeasible to anticipate or enforce sampling quotas across commodities, locations, and time points. Our use of GLMM, a method well-suited to model unbalanced data ( Pardini et al, 2018 ; Pinheiro & Bates, 2001 ), enabled sound inferences to be made despite sampling constraints. Another limitation of this study is that it represents only a single year of observations.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal assessment of post-harvest mycotoxin contamination in rural North Indian food systems

et al. 2021

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The spatiotemporal trends in aflatoxin B1 (AFB1), fumonisin B1 (FB1), and deoxynivalenol (DON) accumulation were analyzed in a range of food commodities (maize, groundnut, pearl millet, rice, and wheat) in village settings in Unnao, Uttar Pradesh, India. Samples (n = 1549) were collected across six communities and six time points spanning a calendar year and were analyzed for mycotoxins using enzyme-linked immunosorbent assays. AFB1 and FB1 were common across surveyed villages, with moderate to high detection rates (45–75%) observed across commodities. AFB1 levels in maize and groundnuts and FB1 levels in maize and pearl millet frequently exceeded regulatory threshold levels of 15 μg/kg (AFB1) and 2 μg/g (FB1). DON was analyzed in wheat, with 3% of samples yielding detectable levels and none exceeding 1 μg/g. In rice, AFB1 levels were highest in the bran and husk and lower in the kernel. Commodity type significantly influenced AFB1 detection status, while commodity type, season, and visual quality influenced samples’ legal status. Storage characteristics and household socioeconomic status indicators did not have significant effects on contamination. No significant effects of any variables on FB1 detection or legal status were observed. Data on mycotoxin contamination, combined with data on local dietary intake, were used to estimate spatiotemporal mycotoxin exposure profiles. Estimated seasonal per capita exposure levels for AFB1 (5.4–39.3 ng/kg body weight/day) and FB1 (~0–2.4 μg/kg body weight/day) exceeded provisional maximum tolerable daily intake levels (1 ng/kg body weight/day for AFB1 and 2 μg/kg body weight/day for FB1) in some seasons and locations. This study demonstrates substantial dietary mycotoxin exposure risk in Unnao food systems and serves as an evidentiary foundation for participatory food safety intervention in the region.

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“…Establishing an adequate control treatment is necessary to perform Before‐After‐Control‐Impact analyses (i.e. BACI, BACIPS, or RCT study designs; Thiault et al 2017; Pardini et al 2018; Chevalier et al 2019). There was no reference ecosystem on Bagaud Island that was adequate for the duration of the study.…”

Section: Discussionmentioning

confidence: 99%

Beetle assemblage dynamics after invasive ice plant (Carpobrotus) removal on a small Mediterranean island

Braschi

Torres

Fadda

et al. 2021

Restoration Ecology

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Invasive plant species, such as Carpobrotus species, threaten the biodiversity of Mediterranean islands. Ecological restoration can include the control of invasive plants, but the effect of Carpobrotus removal on arthropods is understudied. Here, we evaluated the influence of Carpobrotus removal on beetle assemblages, on a Mediterranean island. Between November 2011 and February 2012, we manually removed Carpobrotus and its litter. A site composed of native shrubland vegetation located in the vicinity was studied to estimate the beetle assemblage natural variations. Two years before removal (2010)(2011), and every 2 years following removal (2013, 2015, 2017, 2019), we sampled beetles with pitfall traps. Vegetation did not change at the shrubland site and beetle assemblages stayed relatively stable. After the removal of Carpobrotus at the Carpobrotus site, a diverse halophilic grassland vegetation colonized as well as some chamaephytes. The taxonomic and functional richness of beetle species increased significantly following removal. Assemblage composition changed significantly between preand post-removal years with a high taxonomic turnover rate. Predators (e.g. Staphylinidae, Carabidae) and detritivores (Tenebrionidae) most likely benefited from the vegetation opening, while the diversification of microhabitats led to the availability of a wider variety of prey. Large floricolous beetles (Scarabaeidae) were the most reduced by Carpobrotus removal along with small non-flying beetles. This rapid change in beetle assemblages occurred within 7 years. Future studies should be carried out in areas where reference ecosystems are available to meet the requirements of a Before-After-Control-Impact approach.

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GLMM BACI environmental impact analysis shows coastal dune restoration reduces seed predation on an endangered plant

Cited by 14 publications

References 19 publications

Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?

Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?

Spatiotemporal assessment of post-harvest mycotoxin contamination in rural North Indian food systems

Beetle assemblage dynamics after invasive ice plant (Carpobrotus) removal on a small Mediterranean island

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