Risks to pollinators and pollination from invasive alien species

Vanbergen, Adam J.; Espíndola, Anahí; Aizen, Marcelo A.

doi:10.1038/s41559-017-0412-3

Cited by 142 publications

(132 citation statements)

References 130 publications

(200 reference statements)

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“…Although we only provide approximate numbers of visitation rates for crops with contrasting breeding systems, using such numbers through the implementation of flower monitoring programmes will improve management in many aspects, including enhanced quality and quantity of crop yield. In addition, given that in some places pollinators are managed at densities that are higher than optimal, we expect these guidelines to result in a more limited spillover (Garibaldi et al, ) of managed (often exotic) pollinators from crop areas into natural or semi‐natural areas, reducing their many potential negative impacts (Vanbergen, Espíndola, & Aizen, ).…”

Section: Where To Go From Here?mentioning

confidence: 99%

Crop pollination management needs flower‐visitor monitoring and target values

Garibaldi

Sáez

Aizen

et al. 2020

Journal of Applied Ecology

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Despite the crucial importance of biotic pollination for many crops, land managers rarely monitor the levels of crop pollination needed to guide farming decisions. The few existing pollination recommendations focus on a particular number of honeybee or bumblebee hives per crop area, but these guidelines do not accurately predict the actual pollination services that crops receive. We argue that pollination management for pollinator‐dependent crops should be based on direct measures of pollinator activity. We describe a protocol to quickly perform such a task by monitoring flower visitation rates. We provide target values of visitation rates for crop yield maximization for several important crops by considering the number of visits per flower needed to ensure full ovule fertilization. If visitation rates are well below or above these target values, corrective measures should be taken. Detailed additional data on visitation rates for different species, morpho‐species, or groups of species and/or flower‐visitor richness can improve pollination estimates. Synthesis and applications. We present target values of visitation rates for some globally important pollinator‐dependent crops and provide guidance on why monitoring the number and diversity of pollinators is important, and how this information can be used for decision‐making. The implementation of flower monitoring programmes will improve management in many aspects, including enhanced quality and quantity of crop yield and a more limited spillover of managed (often exotic) pollinators from crop areas into native habitats, reducing their many potential negative impacts.

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Section: Where To Go From Here?mentioning

confidence: 99%

Crop pollination management needs flower‐visitor monitoring and target values

Garibaldi

Sáez

Aizen

et al. 2020

Journal of Applied Ecology

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“…Ecosystems assessed as threatened under this criterion should motivate government authorities to respond: i) with investment in scientific research and monitoring of biotic processes to identify the possible causes and mechanisms of degradation, ii) by developing control and eradication plans for invasive species, and by improving the regulations for the importation and quarantine of new species; and iii) by supporting initiatives for restoration in degraded ecosystems (Table 1). For example, the introduction of species for commercial purposes such as bees have altered pollination functions and the community stability, induced virulent diseases and suppressed plant reproduction success (worldwide) (Vanbergen et al 2018). In USA the National Wild Pig Task Force was stablished as a part of the National Feral Swine Damage Management…”

Section: Degradation Of Biotic Interactions (D)mentioning

confidence: 99%

IUCN Red List of Ecosystems: Implications for Public Policy

Alaniz¹,

Jf²,

Galleguillos³

et al. 2018

Preprint

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Threats to natural ecosystems are closely linked to human development, and the lack, insufficiency or inefficiency of public policies are some of the most important drivers of negative effects on the environment. The contribution of the IUCN's Red List of Ecosystems (RLE) to conservation topics has been discussed in previous studies; however, to date its implications for conservation in public policies have not been addressed. This perspective discusses how the RLE may support the improvement and development of these policies, specifically through the implications for public policy of each of the criteria that substantiate the threat status of ecosystems. We aim to provide a plausible baseline to the operationalization of RLE in public and conservation policy, facilitating the work of governments, practitioners and decision makers. Finally, we provide recommendations and examples as to how to proceed in creating and modifying different public policy instruments, such as land-use planning, spatial zoning, tax reduction, compensation schemes, climate change adaptation plans, management of introduced species, development offsets and restoration investment. This perspective contributes to implement RLE into public policy and to improve ecosystem conservation by expanding the current scope of RLE into practical and political dimensions through plausible actions, policies and strategies.Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 12 December 2018 Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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“…, Vanbergen et al. ). Some invasive species also affect ecosystem processes such as primary productivity and nutrient cycling, which influence ecosystem services and stability (Ehrenfeld , Vilà and Hulme ).…”

Section: Introductionmentioning

confidence: 99%

“…Non-native species invasions have altered biotic communities worldwide, leading to native species declines and changes in ecosystem structure (Asner et al 2008a, Doherty et al 2016, Vanbergen et al 2018. Some invasive species also affect ecosystem processes such as primary productivity and nutrient cycling, which influence ecosystem services and stability (Ehrenfeld 2003, Vil a andHulme 2017).…”

Section: Introductionmentioning

confidence: 99%

Invasion of Hawaiian rainforests by an introduced amphibian predator and N₂‐fixing tree increases soil N₂O emissions

2018

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Invasions of introduced species have homogenized ecological communities worldwide, leading to losses of native species and the services they provide. Some of these invaders substantially alter nutrient cycling, which changes conditions for all other organisms, but less is known about the potential influence of these species on nitrogen (N) trace gas emissions that affect atmospheric processes. We used a natural experiment to explore whether the establishment of an introduced nitrogen (N) fixing tree (Falcataria moluccana) and recent invasion of an amphibian predator, the Caribbean tree frog (Eleutherodactylus coqui), into native Hawaiian rainforests have affected soil emissions of nitrous oxide (N2O) and nitric oxide (NO), two atmospherically important trace gases produced by soil microorganisms. Soil N2O and NO emissions and rates of soil N cycling were significantly higher in F. moluccana‐dominated stands compared to native Metrosideros polymorpha (Ohi'a) stands. Additionally, invasion of E. coqui frogs moderately increased soil N2O emissions, primarily in non‐native F. moluccana forests where soil N availability was already elevated. N2O emissions were positively and significantly related to net potential N mineralization, and total N2O+NO fluxes increased with soil nitrate (NO3−) concentration and rates of nitrification. Previous work in these Hawaiian rainforest sites has shown that F. moluccana substantially increases N availability by increasing ecosystem N supply compared to uninvaded stands, and E. coqui accelerates N availability and litter decomposition, although moderately, due to enhanced fluxes of nutrient‐rich waste products. Here, we show that acceleration of nutrient cycling by introduced species can also alter biosphere–atmosphere exchange of N‐oxides.

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Risks to pollinators and pollination from invasive alien species

Cited by 142 publications

References 130 publications

Crop pollination management needs flower‐visitor monitoring and target values

Crop pollination management needs flower‐visitor monitoring and target values

IUCN Red List of Ecosystems: Implications for Public Policy

Invasion of Hawaiian rainforests by an introduced amphibian predator and N₂‐fixing tree increases soil N₂O emissions

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Risks to pollinators and pollination from invasive alien species

Cited by 142 publications

References 130 publications

Crop pollination management needs flower‐visitor monitoring and target values

Crop pollination management needs flower‐visitor monitoring and target values

IUCN Red List of Ecosystems: Implications for Public Policy

Invasion of Hawaiian rainforests by an introduced amphibian predator and N2‐fixing tree increases soil N2O emissions

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Invasion of Hawaiian rainforests by an introduced amphibian predator and N₂‐fixing tree increases soil N₂O emissions