Phenotypic differences in body size, body condition and circulating carotenoids between hybrid and “pure” red-legged partridges (Alectoris rufa) in the wild

Casas, Fabián; Mougeot, François; Ferrero, María Ester; Sánchez-Barbudo, Inés S.; Dávila, José A.; Viñuela, Javier

doi:10.1007/s10336-013-0947-2

Cited by 17 publications

(12 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, the other continental populations within the range of the nominate subspecies were all found to be devoid of their taxon-specific genomic signature, showing the clear effects of faunal relocation in the form of a homogenized allelic contribution typical of captive populations here represented by individuals from Scarlino (Italy) and Chambretaud (France), the latter being the origin (Vendée, western France) of the founders used for the Italian farm (figure 3b) [76]. Further west, we confirmed the distinctiveness of partridges of A. r. hispanica from northwestern Spain [77] and A. r. intercedens from the remainder of the Iberian Peninsula. Between these two, the higher proportion of captive allelic contributions in A. r. intercedens is the likely result of intensive translocations of A. rufa populations across central and southern Spain [20].…”

Section: Discussionsupporting

confidence: 79%

Genome-wide markers redeem the lost identity of a heavily managed gamebird

et al. 2021

View full text Add to dashboard Cite

Heavily managed wildlife may suffer from genetic homogenization and reshuffling of locally adapted genotypes with non-native ones. This phenomenon often affects natural populations by reducing their evolutionary potential and speeding up the ongoing biodiversity crisis. For decades, the red-legged partridge ( Alectoris rufa ), an intensively managed gamebird of conservation concern and considerable socio-economic importance, has been subjected to extensive releases of farm-reared hybrids with the chukar partridge ( Alectoris chukar ) and translocations irrespective of subspecific affinity. These practices have led to serious concerns that the genetic integrity and biogeographic structure of most red-legged partridge populations are irreversibly affected, as suggested by previous studies based on few genetic markers. Using over 168 000 genome-wide loci and a sampling across the entire A. rufa range, we detected unexpectedly limited and spatially uneven chukar introgression as well as significant intraspecific structure. We demonstrate that species widely feared to have irretrievably lost their genetic identity are likely to be much less affected by unsuitable management practices than previously assumed. Our results spell the need for a radical re-think on animal conservation, possibly restoring native status to populations long treated as compromised. Our study exemplifies how the application of innovative conservation-genomic methods is key to solving wildlife management problems dealing with introgressive hybridization worldwide.

show abstract

Section: Discussionsupporting

confidence: 79%

Genome-wide markers redeem the lost identity of a heavily managed gamebird

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Los híbridos de segunda generación de ambas especies son fenotípicamente iguales a una perdiz roja (Negro et al 2001) y sólo se pueden distinguir por medio de marcadores moleculares. La ausencia de controles de calidad genética en las granjas ha extendido el problema al campo, de forma que estos ejemplares híbridos se encuentran ampliamente distribuidos por la península ibérica en la actualidad, en especial en cotos donde se sueltan perdices (Blanco-Aguiar et al 2008), pero también pueden aparecer en cotos próximos (Casas et al 2013). Los híbridos tienen una menor supervivencia que los individuos "puros", pero son capaces de reproducirse con éxito en el campo, e incluso tienen mayor tamaño de puesta, por tanto constituyen una seria amenaza para el mantenimiento de la integridad genética de la especie (Casas et al 2012).…”

Section: Repercusiones Ecológicas De Las Sueltas De Perdices De Granjaunclassified

La perdiz roja (Alectoris rufa) en España: especie cinegética y amenazada

Viñuela

Casas²,

Díaz-Fernández³

et al. 2013

ECOS

View full text Add to dashboard Cite

show abstract

“…Additionally, we did not find differences in the probability of being hunted between hybrid and "pure" birds, which could be due hybrids and "pure" partridges are being hunted proportionally. Therefore, the higher occurrence of hybrid partridges in restocking game estates (Blanco-Aguiar et al 2008;Casas et al 2013), and the lower survival probability of hybrid partridges outside the hunting season , could also reduce resilience of these populations.…”

Section: Resultsmentioning

confidence: 99%

“…It was located in Campo de Calatrava region (Central Spain, 38º 80´ N, 3º 80´ W, 610 m a.s.l., see Fig. S1), which included four small game hunting estates with similar habitat composition, but different hunting management practices (see Viñuela 2010 andCasas et al 2013 for further details, Fig. S1).…”

Section: Methodsmentioning

confidence: 99%