Selection and evolutionary potential of spring arrival phenology in males and females of a migratory songbird

Tarka, Maja; Hansson, Bengt; Hasselquist, Dennis

doi:10.1111/jeb.12638

Cited by 37 publications

(52 citation statements)

References 112 publications

(195 reference statements)

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“…Despite the selection to arrive early at the breeding sites (Kokko 1999, Lemke et al 2013, Tarka et al 2015, fast migration is energy-demanding (Newton 2010). Unexpectedly, the total speed of migration was generally not significantly faster in pre-breeding migration than after breeding.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, a study of 10 geolocator-tagged great reed warblers from a single Swedish population showed a very broad non-breeding range (from Senegal to Chad and the Congo basin), which indicates low connectivity (Lemke et al 2013). Finally, 3) we predict that total speed of migration will not differ by distance between breeding and non-breeding sites and vice versa, but that it will be faster during pre-breeding migration than after breeding in order to achieve an early arrival at the breeding site (Kokko 1999, Lemke et al 2013, Nilsson et al 2013, Tarka et al 2015. If moderate connectivity is prevailing, we also predict 2) parallel migration directions given that each population has breeding and non-breeding sites that are located at similar longitude, as this would minimize their migration distance (Newton 2010).…”

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confidence: 99%

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Cross‐continental migratory connectivity and spatiotemporal migratory patterns in the great reed warbler

Koleček

Procházka

Elarabany

et al. 2016

Journal of Avian Biology

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Migratory connectivity describes to which degree different breeding populations have distinct (non‐overlapping) non‐breeding sites. Uncovering the level of migratory connectivity is crucial for effective conservation actions and for understanding of the evolution of local adaptations and migratory routes. Here we investigate migration patterns in a passerine bird, the great reed warbler Acrocephalus arundinaceus, over its wide Western Palearctic breeding range using geolocators from Spain, Sweden, Czech Republic, Bulgaria and Turkey. We found moderate migratory connectivity: a highly significant spatial structure in the connections between breeding and sub‐Saharan non‐breeding grounds, but at the same time a partial overlap between individual populations, particularly along the Gulf of Guinea where the majority of birds from the Spanish, Swedish and Czech populations spent their non‐breeding period. The post‐breeding migration routes were similar in direction and rather parallel for the five populations. Birds from Turkey showed the most distinctive migratory routes and sub‐Saharan non‐breeding range, with a post‐breeding migration to east Africa and, together with birds from Bulgaria, a previously unknown pre‐breeding migration over the Arabian Peninsula indicating counter‐clockwise loop migration. The distances between breeding and sub‐Saharan non‐breeding sites, as well as between first and final sub‐Saharan non‐breeding sites, differed among populations. However, the total speed of migration did not differ significantly between populations; neither during post‐breeding migration in autumn, nor pre‐breeding migration in spring. There was also no significant relationship between the total speed of migration and distance between breeding and non‐breeding sites (neither post‐ nor pre‐breeding) and, surprisingly, the total speed of migration generally did not differ significantly between post‐breeding and pre‐breeding migration. Future challenges include understanding whether non‐breeding environmental conditions may have influenced the differences in migratory patterns that we observed between populations, and to which extent non‐breeding habitat fluctuations and loss may affect population sizes of migrants.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Cross‐continental migratory connectivity and spatiotemporal migratory patterns in the great reed warbler

Koleček

Procházka

Elarabany

et al. 2016

Journal of Avian Biology

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“…It is still mere speculation whether these individual schedules are the result of genes (Pulido 2007, Tarka et al 2015, ontogeny (Both 2010, Gill et al 2014, Sergio et al 2014) and/or winter habitat quality (Studds & Marra 2011, Kristensen et al 2013, although all may contribute to different degrees in different populations (Charmantier & Gienapp 2014). If these individual schedules indeed exist, directional environmental change may either reinforce their expression or depress it.…”

Section: Implications Of Temporal Variabilitymentioning

confidence: 99%

“…The presumed low predictability of breeding ground conditions at departure suggests that observed advances in arrival are either due to phenotypic plasticity at the end part of the migratory journey, or the result of a systematic change in departure date due to ontogeny or evolution (Coppack & Both 2002, Ahola et al 2004, Both 2010, Gill et al 2014. So far, little empirical evidence exists on whether variation in arrival date has a genetic background (Potti 1998, Møller 2001, Charmantier & Gienapp 2014, Tarka et al 2015, and whether the observed advances in arrival date are the result of selection on a genetically determined trait (Gienapp et al 2007, Merila 2012.…”

mentioning

confidence: 99%

Repeatability in Spring Arrival Dates in Pied Flycatchers Varies Among Years and Sexes

Both¹,

Bijlsma²,

Ouwehand³

2016

Ardea

117

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“…Early arrival on breeding grounds has been associated with increased fledged young [40,74] including in Song Sparrows as we found [39] resulting in directional selection towards early arrival [27,35,36,75–78]. …”

Section: Discussionmentioning

confidence: 78%

Linking phenological events in migratory passerines with a changing climate: 50 years in the Laurel Highlands of Pennsylvania

McDermott

DeGroote

2017

PLoS ONE

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Advanced timing of both seasonal migration and reproduction in birds has been strongly associated with a warming climate for many bird species. Phenological responses to climate linking these stages may ultimately impact fitness. We analyzed five decades of banding data from 17 migratory bird species to investigate 1) how spring arrival related to timing of breeding, 2) if the interval between arrival and breeding has changed with increasing spring temperatures, and 3) whether arrival timing or breeding timing best predicted local productivity. Four of 17 species, all mid- to long-distance migrants, hatched young earlier in years when migrants arrived earlier to the breeding grounds (~1:1 day advancement). The interval between arrival on breeding grounds and appearance of juveniles shortened with warmer spring temperatures for 12 species (1–6 days for every 1°C increase) and over time for seven species (1–8 days per decade), suggesting that some migratory passerines adapt to climate change by laying more quickly after arrival or reducing the time from laying to fledging. We found more support for the former, that the rate of reproductive advancement was higher than that for arrival in warm years. Timing of spring arrival and breeding were both poor predictors of avian productivity for most migrants analyzed. Nevertheless, we found evidence that fitness benefits may occur from shifts to earlier spring arrival for the multi-brooded Song Sparrow. Our results uniquely demonstrate that co-occurring avian species are phenologically plastic in their response to climate change on their breeding grounds. If migrants continue to show a weaker response to temperatures during migration than breeding, and the window between arrival and optimal breeding shortens further, biological constraints to plasticity may limit the ability of species to adapt successfully to future warming.

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Selection and evolutionary potential of spring arrival phenology in males and females of a migratory songbird

Cited by 37 publications

References 112 publications

Cross‐continental migratory connectivity and spatiotemporal migratory patterns in the great reed warbler

Cross‐continental migratory connectivity and spatiotemporal migratory patterns in the great reed warbler

Repeatability in Spring Arrival Dates in Pied Flycatchers Varies Among Years and Sexes

Linking phenological events in migratory passerines with a changing climate: 50 years in the Laurel Highlands of Pennsylvania

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