Genetic Diversity and Population Structure of the Eurasian Whiskered Tern (Chlidonias hybrida hybrida), a Species Exhibiting Range Expansion

Abstract

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Mitochondrial DNA control region diversity in Common Terns Sterna hirundo from Slovenia and Croatia

“…Tajima's D implied possible expansion for the Sečovlje Salina group as well. These findings might reflect expansion from glacial refugia during the last ice age (Oomen et al 2011, Szczys 2017 b) and they are consistent with other published data on terns (Peck & Congdon 2004, Faria et al 2010, Szczys et al 2017a, Szczys et al 2017.…”

High Connectivity Among Breeding Populations of the Elegant Tern (Thalasseus elegans) in Mexico and Southern California Revealed Through Population Genomic Analysis

“…These environmental challenges cause changes in breeding phenology (Wanless et al 2009), and loss of suitable breeding and foraging habitats. In response to environmental challenges, some seabirds can change their patterns of migration and dispersal by expanding their foraging range (McLeay et al 2010;Cecere et al 2015), shifting breeding phenology, colonizing new breeding locations, or a combination thereof (Monaghan 1996;Velarde et al 2015;Dayton et al 2017).…”

“…There is also evidence that wintering distributions and migration routes may play an important role in the structuring of breeding populations for many seabird species (Szczys et al 2012;Friesen 2015;Dayton et al 2017;Szczys et al 2017). Friesen et al (2007) proposed that isolation during the non-breeding season is crucial to the development of genetic differentiation in seabirds, therefore one would expect little population structure among breeding colonies of Elegant Terns, despite the fact that geographically discrete breeding colonies do exist and that a northward expansion of Elegant Tern breeding colonies appears to be underway.…”

Contrasting patterns of population structure at large and fine geographical scales in a migratory avian disturbance specialist of braided river ecosystems

“…The level of genetic diversity is similar to other threatened New Zealand avian species, for example kea ( Nestor notabilis ; Dussex, Wegmann, & Robertson, ) and blue duck (whio/ Hymenolaimus malacorhynchos ; Grosser, Abdelkrim, Wing, Robertson, & Gemmell, ). Moreover, it is also similarly high to other Chlidonias species (Dayton, Ledwoń, Paillisson, Atamas, & Szczys, ; Szczys, Lamothe, et al, ). For example, Eurasian whiskered terns ( C. hybrida hybrida ) are thought to currently experience a range expansion and show a H E = 0.59 (6 microsatellite loci; n = 78) as well as an average haplotype diversity of 0.62 and average nucleotide diversity of 0.0017 for the partial cytochrome b gene (467 bp; n = 74; Dayton et al, ).…”

“…Moreover, it is also similarly high to other Chlidonias species (Dayton, Ledwoń, Paillisson, Atamas, & Szczys, ; Szczys, Lamothe, et al, ). For example, Eurasian whiskered terns ( C. hybrida hybrida ) are thought to currently experience a range expansion and show a H E = 0.59 (6 microsatellite loci; n = 78) as well as an average haplotype diversity of 0.62 and average nucleotide diversity of 0.0017 for the partial cytochrome b gene (467 bp; n = 74; Dayton et al, ). Nevertheless cross‐species comparisons of genetic diversity should be interpreted with caution due to different population histories and different life‐history traits (Díez‐del‐Molino, Sánchez‐Barreiro, Barnes, Gilbert, & Dalén, ).…”