Lessons learned as Erica turgida is returned

Hitchcock, Anthony; Williams, Jennifer J.; Cowell, Carly

doi:10.1016/j.jnc.2020.125858

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Spontaneous hybridisation between morphologically similar congeneric species can also occur in ex situ collections, further eroding the suitability of progeny for conservation (Volis 2017;Lozada-Gobilard et al 2020). Despite this, re-establishment or de-extinction of plant species has been achieved where founder populations were limited (Abeli et al 2020;Hitchcock et al 2020) (Sudarmono et al 2016). Controlled cross-pollination has also been recommended as a tool to obtain genetically diverse seeds of Metrosideros boninensis, an endangered tree endemic to the Bonin Islands in the western North Pacific Ocean (Kaneko et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Cross-pollination and pollen storage to assist conservation of Metrosideros bartlettii (Myrtaceae), a critically endangered tree from Aotearoa New Zealand

Walt

Alderton-Moss

Lehnebach

2022

Pacific Conserv. Biol.

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Context. Metrosideros bartlettii is one of the most threatened trees in New Zealand and with less than 14 individuals spread across three populations, the species is at high risk of extinction. Despite reproductive failure being identified as one of the factors contributing to population decline, little is known about its pollination biology. Aim. The current study aimed to gain knowledge of the reproductive biology of M. bartlettii by using trees in cultivation of which origin is known. Methods. We tested the effect of self-pollination, cross-pollination and hybridisation treatments on reproductive output. In addition, the viability of fresh pollen was determined for each tree and the impact of desiccation and storage temperature (5°C, −18°C and −196°C) on pollen viability assessed. Key results. Metrosideros bartlettii was found to be highly selfincompatible with seed formed via autonomous self-pollination having low viability. Hybridisation with Metrosideros excelsa, another native species commonly found in cultivation, produced viable seeds, but seedlings failed to survive. Pollen viability differed significantly among trees, and pollen stored at −18°C and −196°C retained viability after 6 months. Conclusion. Metrosideros bartlettii is self-incompatible and cross-pollination is required to increase seed production and supplement wild populations. Implications. Trees in cultivation provide a valuable tool for the conservation of M. bartlettii. However, cross-pollination is essential to prevent hybridisation and ensure genetically robust seed. Long-term storage of pollen at the temperatures determined here will help to overcome challenges in cross-pollination of trees that are spatially and geographically isolated.

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Section: Introductionmentioning

confidence: 99%

Cross-pollination and pollen storage to assist conservation of Metrosideros bartlettii (Myrtaceae), a critically endangered tree from Aotearoa New Zealand

Walt

Alderton-Moss

Lehnebach

2022

Pacific Conserv. Biol.

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“…As the above mentioned conservation translocations are being increasingly employed in both terrestrial and marine environments [22,33,34], especially reintroductions of threatened species [35][36][37][38], the need to summarise this profuse information is ever more apparent for management purposes. In addition, because national and regional protected areas are frequent sites of population restoration action, given that long-term protection from diverse anthropogenic pressures have maintained relatively high-quality habitat [39][40][41][42], reserve and wildlife managers alike may be increasingly confronted with the challenges associated with such interventions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Existing evidence on the outcomes of wildlife translocations in protected areas: a systematic map

2021

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Background Ecosystem degradation, mainly through overexploitation and destruction of natural habitats, is a well-known threat to the viability and persistence of many species’ populations worldwide. The use of translocations as a viable conservation tool in conjunction with protected areas has been rapidly increasing over the last few decades. Protected areas such as strict nature reserves, national parks, and species management areas continue to be central tools for biodiversity conservation as they provide vital habitats set aside from various human pressures. Because action consistently runs ahead of policy, the need for a clearer evidence base on the outcomes of wildlife translocations undertaken at a global scale is becoming increasingly urgent for scientific and decision-making communities, in order to build clear strategy frameworks around conservation translocations. We therefore conducted a systematic mapping exercise to provide an overview of the existing evidence on the outcomes of wildlife translocations in protected areas. Methods We searched two bibliographic databases, four web-based search engines with search-by-key-words capacity, 5 specialist websites, and conducted a grey literature call through two project stakeholders. We screened articles by title, abstract, and full text using pre-defined inclusion criteria all the while assessing the consistency of the reviewers. All relevant translocations were coded from retained publications. Key variables of interest were extracted and coded for each translocation event. The quantity and characteristics of the available evidence and knowledge gaps/clusters are summarised. The distribution and frequency of translocations are presented in heat- and geographical maps. Review findings A total of 613 articles were considered eligible for coding bibliometric data. Metapopulation management and review articles were not coded for quantitative and qualitative variables. Linked data (duplicated translocations) were also excluded. Finally, 841 studies of different translocation events were fully coded from 498 articles. Most of these translocations were carried out in North America and Oceania. The most commonly undertaken intervention types were one-off supplementations and “supplemented reintroductions”. Mammals were by far the most transferred group among animals. Magnoliopsida was the most translocated plant group. Survival, space use, and demography metrics were the most studied outcomes on translocated species. Conclusions This systematic map provides an up-to-date global catalogue of the available evidence on wildlife translocations to, from, or within protected areas. It should enable protected area managers to better understand their role in the global network of protected areas, regarding translocation practice, both as suppliers or recipients of translocated species. It may help managers and practitioners make their own choices by comparing previous experiences, regarding both the species concerned and the precise translocation modalities (number of individuals, etc.). Finally, it constitutes a decision-making tool for managers as well as for policy makers for future translocations.

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Conservation translocations in urban environments: State of the knowledge and future directions

Brown,

Williams,

Soanes

2024

Basic and Applied Ecology

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Lessons learned as Erica turgida is returned

Cited by 4 publications

References 22 publications

Cross-pollination and pollen storage to assist conservation of Metrosideros bartlettii (Myrtaceae), a critically endangered tree from Aotearoa New Zealand

Cross-pollination and pollen storage to assist conservation of Metrosideros bartlettii (Myrtaceae), a critically endangered tree from Aotearoa New Zealand

Existing evidence on the outcomes of wildlife translocations in protected areas: a systematic map

Conservation translocations in urban environments: State of the knowledge and future directions

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