The Black Poplar

Cooper, Fiona

doi:10.2307/j.ctv13gvfxz

Cited by 3 publications

(2 citation statements)

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“…Although Black poplar in the aggregate sense is widely distributed, the species is increasingly scarce through much of mainland Europe reaching into central Asia and North Africa. The subspecies found in mainland Europe – Populus nigra ssp nigra – is different from that found in the UK and on the fringe of Western Europe, which is Populus nigra ssp betulifolia (Cooper, ).…”

Section: Case Studiesmentioning

confidence: 89%

“…Approximately 380 native mature Black poplars have been identified in Cheshire, most of which are old, fragile and unmanaged. Social history suggests that the old trees are likely to have been planted by people and probably from cuttings (Cooper, ), so genetic diversity in the UK population is considered to be low (Cotterill, ). Chester Zoo has been part of a group working across Cheshire with several partners, including the Forestry Commission (Bristol, UK), Cheshire Wildlife Trust (Malpas, UK), Environment Agency (Rotherham, UK), The Mersey Forest (Warrington, UK) and The Conservation Volunteers (Doncaster, UK).…”

Section: Case Studiesmentioning

confidence: 99%

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Reintroductions of native plant species to the United Kingdom

Bird

Esseen

Hewitt

2017

International Zoo Yearbook

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Zoos can play a key role in the conservation of native plant species, and projects concerning the reintroduction and reinforcement of local plant populations are potentially an ideal way to involve visitors and local communities in practical conservation. However, such projects need to be clearly thought through and designed correctly from the start. Knowledge and understanding of relevant International Union for Conservation of Nature guidelines are important to ensure that reintroductions are ethical and sustainable. Many zoological institutions tend not to get involved in such local projects, favouring more exotic and attention‐grabbing conservation programmes. Chester Zoo, UK, has engaged with partners and worked with various native plant species, predominantly in Cheshire and North Wales, including Black poplar Populusnigra ssp betulifolia, Common barberry Berberis vulgaris and Common juniper Juniperus communis. There have been a number of key lessons learned, which can be applied to the design and management of future projects.

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Section: Case Studiesmentioning

confidence: 89%

Section: Case Studiesmentioning

confidence: 99%

Reintroductions of native plant species to the United Kingdom

Bird

Esseen

Hewitt

2017

International Zoo Yearbook

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SSR-based analysis of clonality, spatial genetic structure and introgression from the Lombardy poplar into a natural population of Populus nigra L. along the Loire River

Chenault¹,

Arnaud‐Haond

Juteau³

et al. 2011

Tree Genetics & Genomes

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A scarcity of favourable habitats and introgression from exotic cultivars are two major threats to black poplars (Populus nigra L.) in Europe. Natural vegetative propagation contributes to maintenance of the species in areas where seedling recruitment is limited. Exhaustive sampling of all mature trees in a natural P. nigra stand (413 individuals at recorded positions), genotyping at 11 SSR loci, and a standardized analysis framework resulted in a precise description of clonality in terms of (a) frequency, (b) spatial growth form, and (c) impacts on the overall spatial genetic structure (SGS). The high proportion of replicated genotypes detected resulted in a genotypic richness (R) of 0.47. Up to 18 ramets were found per multilocus lineage (MLL), but 95% of MLLs contained fewer than five ramets (Pareto index β=1.07). No significant difference in vegetative propagation potential was found between genders. Uneven spatial distribution of ramets, with clustering of clonal ramets (aggregation index A c =0.62) and near-zero intermingling between MLLs (clonal dominance index D c = 0.99), resulted in a 'phalanx' clonal growth form, explaining most of the SGS observed over short distances (0-20 m, Sp=0.0324). Although they did not exhibit the typical columnar shape of the Lombardy poplar (P. nigra var. italica), five trees were found to be probable F 1 hybrids of this old and widely distributed cultivar.

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