Control or eradication: problems in the management of invasive birds.

Avery, Michael L.; Feare, C. J.

doi:10.1079/9781789242065.0350

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…While much is now known about the impacts and eradication methodologies for mammalian predators (Holmes et al 2019), especially rodents, less is known about these aspects of invasive birds (Veitch et al 2019, Avery and Feare 2020). One of the bird species considered most invasive and threatening to native taxa is the Common Myna Acridotheres tristis , recognised as one of the world’s 100 most serious invasive species (IUCN 2014).…”

Section: Introductionmentioning

confidence: 99%

Eradication of a highly invasive bird, the Common MynaAcridotheres tristis, facilitates the establishment of insurance populations of island endemic birds

Feare

Bristol

Crommenacker

2021

Bird Conservation International

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Summary Common Myna Acridotheres tristis is considered to be among the world’s most damaging invasive species through disturbance, predation, competition pathogen introduction to native birds and other taxa. Claimed impacts on native birds have often been based on anecdotal reports. More substantive evidence of interference with small-island endemic birds has been reported, but impacts have rarely been quantified or subjected to experimental manipulation. On Denis Island (Seychelles), up to 10% of Seychelles Warblers Acrocephalus sechellensis, and small numbers of Seychelles Fodies Foudia sechellesis and Seychelles Paradise Flycatchers Terpsiphone corvina had head injuries following myna attacks, stimulating an eradication of the mynas. Populations of four species of Seychelles’ endemic birds, introduced to the island to establish insurance populations, were estimated before, during and after the completion of the eradication, permitting assessment of the impact of myna removal on populations of the endemics. Numbers of all four endemics increased following introduction, but increases in the numbers of Seychelles Magpie Robins Copsychus sechellensis and Seychelles Paradise Flycatchers accelerated after >90% of the mynas had been removed. All endemic populations continued to increase during and after completion of the eradication in 2015, and injuries to Seychelles Warblers, Seychelles Fodies, and Seychelles Paradise Flycatchers ceased. Habitat management within a designated conservation zone on the island, into which the endemics were released and subsequently spread to occupy most of the island, also contributed to the endemic birds’ global populations and to their improved conservation status. This study confirms that mynas negatively impact small island populations of endemic birds and suggests that their potential impact has been underestimated. Myna eradication should be considered vital before endangered endemic birds and other taxa susceptible to their negative impacts are translocated to small islands for conservation reasons.

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Section: Introductionmentioning

confidence: 99%

Eradication of a highly invasive bird, the Common MynaAcridotheres tristis, facilitates the establishment of insurance populations of island endemic birds

Feare

Bristol

Crommenacker

2021

Bird Conservation International

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“…Birds are a common agricultural pest, and many attempts have been made to reduce or eliminate invasive birds. Examples include Monk Parakeets and Sacred Ibis in the US 70 , and the 20 exotic species of birds currently in Australia which are known to be agricultural pests 71 . In contrast, there are many species for whom WW individuals are viable, including crustaceans 52 , amphibians 53,54 , and reptiles 55 .…”

Section: Discussionmentioning

confidence: 99%

Allele Sails: launching traits and fates into wild populations with DNA sequence modifiers

Johnson,

Hay,

Maselko

2024

Preprint

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Population-scale genome editing can be used to alter the composition or fate of wild populations. One approach to achieving these aims utilizes a synthetic gene drive element a multi-gene cassette-to bring about an increase in the frequency of an existing allele. However, the use of gene drives is complicated by the multiple scientific, regulatory, and social issues associated with transgene persistence and gene flow. Alternatives in which transgenes are not driven could potentially avoid some of these issues. Here we propose an approach to population scale gene editing using a system we refer to as an Allele Sail. An Allele Sail consists of a genome editor (the Wind) that introduces DNA sequence edits (the Sail) at one or more sites, resulting in progeny that are viable and fertile. The editor, such as a sequence-specific nuclease, or a prime- or base-editor, is inherited in a Mendelian fashion. Meanwhile, the edits it creates experience a Super-Mendelian increase in frequency. We explore this system using agent-based modeling, and identify contexts in which a single, low frequency release of an editor brings edits to a very high frequency. We also identify conditions in which manipulation of sex determination can be used to bring about population suppression. Current regulatory frameworks often distinguish between transgenics as genetically modified organisms (GMOs), and their edited non-transgenic progeny as non-GMO. In this context an Allele Sail provides a path to alter traits and fates of wild populations in ways that may be considered more acceptable.

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Using birds of prey to manage pest bird flocks under lethal and non-lethal conditions – A review

Wallis,

Coles

2024

Raptor Journal

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Control or eradication: problems in the management of invasive birds.

Abstract: This describes the negative impacts of invasive bird species, including the threats that they pose to native species, the efforts that have been made to reduce or eradicate such impacts, the efficacy of management options and control strategies and case histories of success and failure.

Cited by 4 publications

References 21 publications

Eradication of a highly invasive bird, the Common MynaAcridotheres tristis, facilitates the establishment of insurance populations of island endemic birds

Eradication of a highly invasive bird, the Common MynaAcridotheres tristis, facilitates the establishment of insurance populations of island endemic birds

Allele Sails: launching traits and fates into wild populations with DNA sequence modifiers

Using birds of prey to manage pest bird flocks under lethal and non-lethal conditions – A review

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