¡Nos trasladamos! E-Prints cerrará el 7 de junio.

En las próximas semanas vamos a migrar nuestro repositorio a una nueva plataforma con muchas funcionalidades nuevas. En esta migración las fechas clave del proceso son las siguientes:

Es muy importante que cualquier depósito se realice en E-Prints Complutense antes del 7 de junio. En caso de urgencia para realizar un depósito, se puede comunicar a docta@ucm.es.

Human decimation caused bottleneck effect, genetic drift, and inbreeding in the Canarian houbara bustard



Downloads per month over past year

Hórreo Escandón, José Luis and Ucero, Alberto and Palacín, Carlos and López Solano, Alfonso and Abril Colón, Inmaculada and Alonso, Juan C. (2022) Human decimation caused bottleneck effect, genetic drift, and inbreeding in the Canarian houbara bustard. The Journal of Wildlife Management . pp. 1-15. ISSN 1937-2817

[thumbnail of J Wildl Manag - 2022 - Horreo - Human decimation caused bottleneck effect  genetic drift  and inbreeding in the Canarian.pdf]
PDF - Published Version
Creative Commons Attribution Non-commercial No Derivatives.


Official URL: https://doi.org/10.1002/jwmg.22342


An endangered subspecies of the African houbara bustard, the Canarian houbara (Chlamydotis undulata fuertaventurae), is endemic to the Canary Islands off southern Morocco (Lanzarote, Fuerteventura, and La Graciosa islands). This population decreased over the last centuries because of hunting and egg collection, and was close to extinction in Lanzarote around the middle of last century. Later, the species recovered because of hunting bans, but in Fuerteventura a significant decline has again occurred in the last decades and houbaras are on the brink of extirpation on that island. We describe the genetic characteristics and recent evolutionary history of this subspecies to provide essential information for the evaluation of the conservation actions implemented and for the development of new measures to prevent further declines and local extirpations. We amplified microsatellite loci to infer genetic variability, population structure, and gene flow. The subspecies exhibited relatively high genetic variability but reduced heterozygosity. In spite of high gene flow among locations and islands, we identified 2 genetic units: 1 comprising La Graciosa and Fuerteventura islands, and the other restricted to Lanzarote. We detected genetic bottlenecks and subsequent inbreeding in both units, with a reduced effective number alleles in Lanzarote compared to Fuerteventura‐La Graciosa.
This genetic structure may be explained by human‐induced historical population declines and an associated bottleneck effect, particularly in Lanzarote. Conservation measures should aim to recover the houbara population of Fuerteventura, improving survival of adults and juvenile productivity, and to ensure that genetic flow continues among breeding locations and islands to recover the original population structure (an unique genetic unit over the range of the species) and prevent further genetic deterioration, which could lead to extirpation of this endemic subspecies.

Item Type:Article
Additional Information:

CRUE-CSIC (Acuerdos Transformativos 2022)

Uncontrolled Keywords:Bottleneck effect; Canary Islands; Chlamydotis undulata fuertaventurae; Gene drift; Inbreeding; Islands; Population genetics
Subjects:Medical sciences > Biology > Birds
Medical sciences > Biology > Genetics
ID Code:75983
Deposited On:16 Dec 2022 09:52
Last Modified:19 Dec 2022 11:46

Origin of downloads

Repository Staff Only: item control page