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Auteur Siegfiried L. Krauss
Documents disponibles écrits par cet auteur (2)
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An ecological genetic delineation of local seed-source provenance for ecological restoration / Siegfiried L. Krauss in Ecology and Evolution, 3 (7) (07/2013)
Titre : An ecological genetic delineation of local seed-source provenance for ecological restoration Type de document : Imprimé Auteurs : Siegfiried L. Krauss ; Elisabeth A. Sinclair ; John D. Bussell ; Richard J. Hobbs Année de publication : 2013 Article en page(s) : 2138-2149 Langues : Anglais (eng) Catégories : [Thématique] Restauration des écosystèmes
Résumé : An increasingly important practical application of the analysis of spatial genetic structure within plant species is to help define the extent of local provenance seed collection zones that minimize negative impacts in ecological restoration programs. Here, we derive seed sourcing guidelines from a novel range-wide assessment of spatial genetic structure of 24 populations of Banksia menziesii (Proteaceae), a widely distributed Western Australian tree of significance in local ecological restoration programs. An analysis of molecular variance (AMOVA) of 100 amplified fragment length polymorphism (AFLP) markersrevealed significant genetic differentiation among populations (ΦPT = 0.18). Pairwise population genetic dissimilarity was correlated with geographic distance, but not environmental distance derived from 15 climate variables, suggesting overall neutrality of these markers with regard to these climate variables. Nevertheless, Bayesian outlier analysis identified four markers potentially under selection, although these were not correlated with the climate variables. We calculated a global R-statistic using analysis of similarities (ANOSIM) to test the statistical significance of population differentiation and to infer a threshold seed collection zone distance of ~60 km (all markers) and 100 km (outlier markers) when genetic distance was regressed against geographic distance. Population pairs separated by >60 km were, on average, twice as likely to be significantly genetically differentiated than population pairs separated by Identifiant pérenne : DOI : 10.1002/ece3.595
in Ecology and Evolution > 3 (7) (07/2013) . - 2138-2149KRAUSS, S.L., SINCLAIR, E.A., BUSSELL, J.D., HOBBS, R.J., 2013 - An ecological genetic delineation of local seed-source provenance for ecological restoration ; Ecology and Evolution, 3 (7) : 2138-2149.
Priority Actions to Improve Provenance Decision-Making / Martin F. Breed in BioScience, 68 (7) (2018)
Titre : Priority Actions to Improve Provenance Decision-Making Type de document : Imprimé Auteurs : Martin F. Breed ; Peter A. Harrison ; Armin Bischoff ; Paula Durruty ; Nick J. C. Gellie ; Emily K. Gonzales ; Kayri Havens ; Marion Karmann ; Francis F. Kilkenny ; Siegfiried L. Krauss ; Andrew J. Lowe ; Pedro Marques ; Paul G. Nevill ; Pati Vitt ; Anna Bucharova Année de publication : 2018 Article en page(s) : 510-516 Langues : Français (fre) Catégories : [Thématique] Restauration des écosystèmes Résumé : Selecting the geographic origin—the provenance—of seed is a key decision in restoration. The last decade has seen a vigorous debate on whether to use local or nonlocal seed. The use of local seed has been the preferred approach because it is expected to maintain local adaptation and avoid deleterious population effects (e.g., maladaptation and outbreeding depression). However, the impacts of habitat fragmentation and climate change on plant populations have driven the debate on whether the local-is-best standard needs changing. This debate has largely been theoretical in nature, which hampers provenance decision-making. Here, we detail cross-sector priority actions to improve provenance decision-making, including embedding provenance trials into restoration projects; developing dynamic, evidence-based provenance policies; and establishing stronger research–practitioner collaborations to facilitate the adoption of research outcomes. We discuss how to tackle these priority actions in order to help satisfy the restoration sector’s requirement for appropriately provenanced seed. Identifiant pérenne : HAL : hal-01787836
in BioScience > 68 (7) (2018) . - 510-516BREED, M.F., HARRISON, P.A., BISCHOFF, A., DURRUTY, P., GELLIE, N.J.C., GONZALES, E.K., HAVENS, K., KARMANN, M., KILKENNY, F.F., KRAUSS, S.L., LOWE, A.J., MARQUES, P., NEVILL, P.G., VITT, P., BUCHAROVA, A., 2018 - Priority Actions to Improve Provenance Decision-Making ; BioScience, 68 (7) : 510-516.