Mitochondrial demographic history of the Egyptian mongoose (Herpestes ichneumon), an expanding carnivore in the Iberian Peninsula


Autoria(s): Barros, Tânia; Gaubert, Philippe; Rocha, Rita; Bandeira, Vitor; Souto, Luis; Mira, António; Fonseca, Carlos
Data(s)

23/01/2017

23/01/2017

2016

Resumo

Describing the genetic patterns and the demographic history of expanding species is essential for providing insights into the processes linked with range dynamics. We analysed the mitochondrial diversity of the Egyptian mongoose (Herpestes ichneumon) across the Iberian Peninsula, where the species is currently expanding northwest. A total of 242 individuals were analysed, together with nine representatives from the North African dispersal source. Haplotype segregation and strong differentiation between Iberian and North African populations confirmed the longterm presence of the species in the Iberian Peninsula. The distribution of mitochondrial diversity fitted the pattern of a historically diversified population in southern Iberia, from which the recent dispersals into northern areas may have occurred. Higher levels of haplotype and nucleotide diversities in the northern areas, together with the heterogeneous distribution of pairwise population differentiations and the weak signal for isolationbydistance suggest the existence of longdispersal migrants across the Iberian Peninsula. Sudden and spatial expansion scenarios of H. ichneumon in the Iberian Peninsula were supported by mismatch analysis and marginally supported by neutrality tests. However, the precise time of occurrence of the detected expansion remains unclear. Future studies should incorporate additional markers in order to further clarify the population dynamics of the Egyptian mongoose in its Iberian range.

Identificador

Barros, T.; Gaubert, P.; Rocha, R.G.; Bandeira, V.; Souto, L.; Mira, A.; Fonseca, C. 2016. Mitochondrial demographic history of the Egyptian mongoose (Herpestes ichneumon), an expanding carnivore in the Iberian Peninsula. Mammalian Biology, 81(2): 176-184.

176-184

http://hdl.handle.net/10174/19971

81

Mammalian Biology

ICAAM

nd

nd

nd

nd

nd

nd

nd

221

http://dx.doi.org/10.1016/j.mambio.2015.09.003

Idioma(s)

eng

Publicador

Mammalian Biology

Direitos

openAccess

Palavras-Chave #Demographic history #Genetic diversity #Iberian Peninsula #Herpestes ichneumon #Mitochondrial DNA
Tipo

article