Rapid microevolution of migratory behaviour in a wild bird species

Nature ◽  
1992 ◽  
Vol 360 (6405) ◽  
pp. 668-670 ◽  
Author(s):  
P. Berthold ◽  
A. J. Helbig ◽  
G. Mohr ◽  
U. Querner
Keyword(s):  
Wild Bird ◽  
Bird Species ◽  
Migratory Behaviour

Long-term Monitoring for Avian Influenza Viruses in Wild Bird Species in Italy

2003 ◽  
Vol 27 ◽  
pp. 107-114 ◽  
Author(s):  
M.A. De Marco ◽  
E. Foni ◽  
L. Campitelli ◽  
E. Raffini ◽  
M. Delogu ◽  
...  
Keyword(s):  
Avian Influenza ◽  
Wild Bird ◽  
Bird Species ◽  
Influenza Viruses ◽  
Avian Influenza Viruses ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Drivers and Consequences of Partial Migration in an Alpine Bird Species

2021 ◽  
Author(s):  
Øyvind Lorvik Arnekleiv ◽  
Katrine Eldegard ◽  
Pål Fossland Moa ◽  
Lasse Frost Eriksen ◽  
Erlend B. Nilsen
Keyword(s):  
Body Weight ◽  
Small Body ◽  
Bird Species ◽  
Nesting Success ◽  
Partial Migration ◽  
Individual State ◽  
Migratory Behaviour ◽  
Willow Ptarmigan ◽  
Fitness Consequences ◽  
Migratory Strategy

1. Partial migration, where a portion of the population migrates between winter and summer (breeding) areas and the rest remain year-round resident, is a common phenomenon across several taxonomic groups. Yet, although several hypotheses have been put forward to explain why some individuals migrate while others stay resident – as well as the fitness consequences of the different strategies – the drivers and consequences of the decision to migrate or not are poorly understood. 2. We used data from radio-tagged female (n=73) willow ptarmigan Lagopus lagopus in an alpine study area in Central Norway to test if i) the decision to migrate was dependent on individual state variables (age and body size), ii) individuals repeated migratory behaviour between seasons, and iii) the choice of migratory strategy was related to nesting performance.3. Partially supporting our prediction that migratory strategy depends on individual state, we found that juvenile birds with small body sizes were more likely to migrate whereas large juveniles stayed resident. For adult females, we found no relationship between migratory strategy and body weight. We found strong evidence for high individual repeatability of migratory strategy between seasons. Migratory strategy did not explain variation in nesting performance among individuals, suggesting no direct influence of the chosen strategy on nesting success. 4. Our results indicate that partial migration in willow ptarmigan is determined by juvenile body weight, and that migratory behaviour becomes a part of the individual life history as a fixed strategy. Nesting success was not affected by migratory strategy in our study population, but future studies should assess other traits to further test potential fitness consequences.

scholarly journals Unhatched eggs represent the invisible fraction in two wild bird populations

2020 ◽  
Vol 16 (1) ◽  
pp. 20190763 ◽  
Author(s):  
Nicola Hemmings ◽  
Simon Evans
Keyword(s):  
Life History ◽  
Wild Bird ◽  
Evolutionary Dynamics ◽  
Population Studies ◽  
Bird Species ◽  
Fertilization Failure ◽  
Bird Populations ◽  
Life History Data ◽  
Evolutionary Inference ◽  
The Invisible

Prenatal mortality is typically overlooked in population studies, which biases evolutionary inference by confounding selection and inheritance. Birds represent an opportunity to include this ‘invisible fraction’ if each egg contains a zygote, but whether hatching failure is caused by fertilization failure versus prenatal mortality is largely unknown. We quantified fertilization failure rates in two bird species that are popular systems for studying evolutionary dynamics and found that overwhelming majorities (99.9%) of laid eggs were fertilized. These systems thus present opportunities to eliminate the invisible fraction from life-history data.

Erythrocyte micronucleus cytome assay of 17 wild bird species from the central Monte desert, Argentina

2016 ◽  
Vol 23 (24) ◽  
pp. 25224-25231 ◽  
Author(s):  
Arnoldo A. M. Quero ◽  
Daniela M. Ferré ◽  
Agustín Zarco ◽  
Pablo F. Cuervo ◽  
Nora B. M. Gorla
Keyword(s):  
Wild Bird ◽  
Bird Species ◽  
Monte Desert ◽  
Cytome Assay

scholarly journals Blastocystis subtype distribution in domestic and captive wild bird species from Brazil using next generation amplicon sequencing

2020 ◽  
Vol 9 ◽  
pp. e00138 ◽  
Author(s):  
Jenny G. Maloney ◽  
Aleksey Molokin ◽  
Maria Júlia Rodrigues da Cunha ◽  
Márcia Cristina Cury ◽  
Monica Santin
Keyword(s):  
Wild Bird ◽  
Bird Species ◽  
Amplicon Sequencing ◽  
Next Generation ◽  
Blastocystis Subtype ◽  
Subtype Distribution
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