Improving Standards for At-Risk Butterfly Translocations

Daniels, Jaret C.; Nordmeyer, Cale; Runquist, Erik

doi:10.3390/d10030067

Cited by 10 publications

(11 citation statements)

References 64 publications

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“…Fischer and Lindenmayer, 2000;Sutherland et al, 2010;Ewen et al, 2012). Recently, similar standardisation-based recommendations have also been published for lepidopteran translocations (Daniels et al, 2018). Complementary to improved standardisation, we also advise the dissemination of information, ideally through a centralised international database that facilitates the dispersion of information to an audience beyond academic circles (e.g.…”

Section: Discussionmentioning

confidence: 90%

Identifying factors associated with the success and failure of terrestrial insect translocations

Bellis

Bourke

Williams

et al. 2019

Biological Conservation

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Translocation is increasingly used as a management strategy to mitigate the effects of human activity on biodiversity. Based on the current literature, we summarised trends in terrestrial insect translocations and identified factors associated with success and failure. As the authors' definitions of success and failure varied according to the individual sets of goals and objectives in each project, we adopted a standardised species-specific definition of success. We applied generalised linear models and information-theoretic model selection to identify the most important factors associated with translocation success. We found literature documenting the translocation of 74 terrestrial insect species to 134 release sites. Of the translocations motivated by conservation, 52% were considered successful, 31% were considered to have failed and 17% were undetermined. Our results indicate that the number of individuals released at a translocation site was the most important factor associated with translocation success, despite this being a relatively infrequent perceived cause of failure as reported by authors. Factors relating to weather and climate and habitat quality were the most commonly perceived causes of translocation failure by authors. Consideration of these factors by managers during the planning process may increase the chance of success in future translocation attempts of terrestrial insects. Introduction Translocation represents a valuable tool for wildlife conservation (Fischer and Lindenmayer, 2000;Germano and Bishop, 2009). There has been substantial growth in translocation practice during the past three decades Taylor et al., 2017), resulting in a taxonomically diverse assemblage of translocation case studies. In response to the growing use of translocation as a management tool, the International Union for the Conservation of Nature (IUCN) published a set of broad guidelines in 2013 for conservation-based translocations (IUCN, 2013). These guidelines offer a detailed framework for all phases of a translocation, generalised for all organisms and have likely contributed to the successful recovery of threatened species. In addition to the IUCN guidelines, there have been a number of global reviews, covering amphibians and reptiles (e.g.

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Section: Discussionmentioning

confidence: 90%

Identifying factors associated with the success and failure of terrestrial insect translocations

Bellis

Bourke

Williams

et al. 2019

Biological Conservation

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“…Targeted monitoring is also more likely to identify causes of failure and inform future translocation practice to maximise success (Sutherland et al 2010;Taylor et al 2017). A priori goals, therefore, promote systematic adaptive management practices and increase the chance of future translocation success (Taylor et al 2017;Daniels et al 2018) or recovery of a translocation program in the event of a sub-optimal beginning.…”

Section: Introductionmentioning

confidence: 99%

Mitigation translocation as a management tool

Bradley

Tomlinson

Craig

et al. 2021

Conservation Biology

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“…host foraging and shelter construction) is needed to inform conservation actions, including in situ habitat management (Rigney 2013) and ex situ breeding and reintro duction programs (Delphey et al 2016, USFWS 2019. Indeed, despite the increasing use of ex situ breeding and reintroduction programs as conservation tools for imperiled butterflies (Crone et al 2007, Thomas et al 2011, their successes historically have been limited and difficult to quantify (Oates & Warren 1990); many likely are unsuccessful due to poor speciesspecific knowledge (Schultz et al 2008, Bier zychudek & Warner 2015 and/or scientific rigor (Daniels et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Invasive grass negatively affects growth and survival of an imperiled butterfly

Nordmeyer

Runquist

Stapleton

2021

Endang. Species. Res.

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With only ~1% of native prairie remaining in North America, populations of many prairie-obligate species, including the imperiled Dakota skipper butterfly, have drastically declined in recent decades. Unfortunately, population recovery is impeded by an insufficient understanding of Dakota skipper biology. Because larvae have never been naturally observed in the wild, even basic life history elements including preferred host plant(s) are not well understood, and potential hosts have been inferred from grasses inhabiting remnant sites rather than direct observations. To improve our understanding of Dakota skipper biology and habitat needs and inform recovery efforts, we conducted a no-choice performance experiment offering larvae 1 of 5 commonly occurring native grasses and 2 pervasive invasive grass species found across their historic range. We monitored larvae during key life history intervals and evaluated host plant quality by measuring larval and pupal mass, time to pupation, and survivorship. Larvae fed on all offered host grasses, but mass, phenology, and survivorship varied among treatments. Larvae reared on prairie dropseed and porcupine grass had the highest survival, the shortest time to adulthood, and the greatest mass, whereas larvae provided smooth brome and Kentucky bluegrass fared poorly for all observed metrics. All other grasses offered during the study were deemed ‘medium’ quality. Our results suggest that although larvae can feed on a variety of potential host plants, these hosts vary in quality. Invasive grasses across prairies in North America may pose an ecological trap to the conservation of Dakota skipper and other prairie-obligate Lepidoptera.

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Improving Standards for At-Risk Butterfly Translocations

Cited by 10 publications

References 64 publications

Identifying factors associated with the success and failure of terrestrial insect translocations

Identifying factors associated with the success and failure of terrestrial insect translocations

Mitigation translocation as a management tool

Invasive grass negatively affects growth and survival of an imperiled butterfly

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