Census and Contemporary Effective Population Size of Two Populations of the Protected Spanish Moon Moth (Graellsia Isabellae)

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Census and Contemporary Effective Population Size of Two Populations of the Protected Spanish Moon Moth (Graellsia Isabellae)Data
2019-03-02Cita bibliográfica
Marí-Mena, N., Naveira, H., Lopez-Vaamonde, C. and Vila, M. (2019), Census and contemporary effective population size of two populations of the protected Spanish Moon Moth (Graellsia isabellae). Insect Conserv Divers, 12: 147-160. https://doi.org/10.1111/icad.12322
Resumo
[Abstract] 1. Graellsia isabellae is a protected lepidopteran both in France and Spain; however, there has been considerable debate over its conservation status. Recent literature emphasised the need of monitoring population size in the different mountain ranges where this iconic species occurs. 2. We used mark–capture–recapture and genotypes of nine molecular microsatellite markers to estimate the census (N) and contemporary effective population size (Ne) of two Spanish populations extending over similar size areas (10–15 km2): Puebla (Eastern Spain) and Ordesa (Western Pyrenees). Only adult males were captured and analysed, as sampling was based on the use of the synthesised female sex pheromone. 3. Estimates of N were rather different in the two populations: 3398 males in Puebla (95% CI = 2875–4145) and 1500 in Ordesa (95% CI = 1229–1932), although the area occupied by the populations was larger and more densely forested in Ordesa than in Puebla. 4. Several lines of evidence pointed to a moderate–large contemporary Ne at Puebla (173–178 individuals) and a one-order of magnitude lower Ne at Ordesa (27–49). Thus, Ne/N ratios were very low (0.026 and 0.01 respectively). 5. We recommend G. isabellae to be classified as of Least Concern under the IUCN criteria; however, the high temporal fragmentation index and the very low values of the Ne/N ratios obtained for this species, as compared with those recorded for most others, are usually taken as indicators of actual threat for their conservation. As a cautionary measure, managers should aim at maintaining gene flow by ensuring connectivity of Pinus sylvestris in these areas.
Palabras chave
Capture-mark-recapture
Conservation
Microsatellites
Inbreeding Ne
Variance Ne
Insect
Phased emergence
Conservation
Microsatellites
Inbreeding Ne
Variance Ne
Insect
Phased emergence
Descrición
This is the peer reviewed version of the article, which has been published in final form https://doi.org/10.1111/icad.12322.
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© 2018 The Royal Entomological Society. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
ISSN
1752-4598