risk responses in renesting. We suggest that species invest-ing in Frs should not continue breedi... more risk responses in renesting. We suggest that species invest-ing in Frs should not continue breeding in short breeding seasons in response to predation risk but without time con-straints, their response should be similar to species invest-ing in crs, e.g. within-season dispersal and increased nest concealment. Keywords cost of reproduction · Information use · nest survival · replacement clutch · Migratory shorebird
Background: Populations living in fragmented habitats may suffer from loss of genetic variation a... more Background: Populations living in fragmented habitats may suffer from loss of genetic variation and reduced between-patch dispersal, which are processes that can result in genetic differentiation. This occurs frequently in species with reduced mobility, whereas genetic differentiation is less common among mobile species such as migratory birds. The high dispersal capacity in the latter species usually allows for gene flow even in fragmented landscapes. However, strongly philopatric behaviour can reinforce relative isolation and the degree of genetic differentiation. The Southern Dunlin (Calidris alpina schinzii) is a philopatric, long-distance migratory shorebird and shows reduced dispersal between isolated breeding patches. The endangered population of the Southern Dunlin breeding at the Baltic Sea has suffered from habitat deterioration and fragmentation of coastal meadows. We sampled DNA across the entire population and used 12 polymorphic microsatellite loci to examine whether t...
Additional file 2: Figure S1. ΔK values from the Structure analysis. Table S2. Mean LnPs and stan... more Additional file 2: Figure S1. ΔK values from the Structure analysis. Table S2. Mean LnPs and standard deviations for different K-values from program Structure Harvester.
Additional file 3: Table S3. Information on locations of sampled populations, sampling years and ... more Additional file 3: Table S3. Information on locations of sampled populations, sampling years and permits.
Migration during spring is usually faster than during autumn because of competition for breeding ... more Migration during spring is usually faster than during autumn because of competition for breeding territories. In some cases, however, the costs and benefits associated with the environment can lead to slower spring migration, but examples are quite rare. We compared seasonal migration strategies of the endangered Baltic population of the dunlin (Calidris alpina schinzii) using light-level geolocator data from 26 individuals breeding in Finland. Autumn migration was faster, with individuals showing a "jump" and "skipping" migration strategy characterised by fewer stationary periods, shorter total stopping time and faster flight. Spring migration was slower, with individuals using a "skipping" strategy. The duration of migration was longer for early departing birds during spring but not during autumn suggesting that early spring migrants are prevented from arriving to the breeding areas or that fueling conditions are worse on the stopover sites for early ...
Migration during spring is usually faster than during autumn because of competition for breeding ... more Migration during spring is usually faster than during autumn because of competition for breeding territories. In some cases, however, the costs and benefits associated with the environment can lead to slower spring migration, but examples are quite rare. We compared seasonal migration strategies of the endangered Baltic population of the dunlin (Calidris alpina schinzii) using light-level geolocator data from 26 individuals breeding in Finland. Autumn migration was faster, with individuals showing a "jump" and "skipping" migration strategy characterised by fewer stationary periods, shorter total stopping time and faster flight. Spring migration was slower, with individuals using a "skipping" strategy. The duration of migration was longer for early departing birds during spring but not during autumn suggesting that early spring migrants are prevented from arriving to the breeding areas or that fueling conditions are worse on the stopover sites for early ...
Supplementary methods, Tables and Figures provides further details on field methods, data, and re... more Supplementary methods, Tables and Figures provides further details on field methods, data, and results that support the main text. (PDF 637 kb)
Background Populations living in fragmented habitats may suffer from loss of genetic variation an... more Background Populations living in fragmented habitats may suffer from loss of genetic variation and reduced between-patch dispersal, which are processes that can result in genetic differentiation. This occurs frequently in species with reduced mobility, whereas genetic differentiation is less common among mobile species such as migratory birds. The high dispersal capacity in the latter species usually allows for gene flow even in fragmented landscapes. However, strongly philopatric behaviour can reinforce relative isolation and the degree of genetic differentiation. The Southern Dunlin (Calidris alpina schinzii) is a philopatric, long-distance migratory shorebird and shows reduced dispersal between isolated breeding patches. The endangered population of the Southern Dunlin breeding at the Baltic Sea has suffered from habitat deterioration and fragmentation of coastal meadows. We sampled DNA across the entire population and used 12 polymorphic microsatellite loci to examine whether th...
-------------------------------------------------------------------------------------------------... more ------------------------------------------------------------------------------------------------------<br>Description of the dataset "Supplementary Data 3 - Study sites.csv"<br>--------------------------------------------------------------------------------------------------------<br> The dataset <br> - is used in the paper "Unexpected diversity in socially synchronized rhythms of shorebirds" Nature 2016 by M. Bulla et al<br> - contains estimates of mean female and male wing length for each population of biparental shorebirds from a specific study site, plus the locations of the study site, whether the locations had tide, and whether the tide was used by the population for foraging, and how the incubation was monitored.<br>--------------------------------------------------------------------------------------------------------<br> Questions can be directed to: Martin Bulla (bulla.mar@gmail.com)<br>--------------------------------------------------------------------------------------------------------<br> Values are separated by comma. <br>--------------------------------------------------------------------------------------------------------<br> 1. scinam : scientific name of the species<br> 2. sp : four letter abbreviation of the species's English name<br> 3. study_site : name of the study site<br> 4. site_abbreviation : four letter abbreviation of the study site<br> 5. type : was the study site at the breeding ground (breeding) or not (wintering)<br> 6. lat : latitude of the study site (decimal)<br> 7. lon : longitude of the study site (decimal)<br> 8. tidal_habitat : is the study site at primarily tidal habitat (y=yes, n=no)<br> 9. tidal_used : if the study site is at primarily tidal habitat, do the birds use it for foraging (y=yes, n=no)<br>10. incubation_monitoring : method used to monitor incubation (for details see the paper's Extended Data Table 4)<br>11. sexing_method : i [...]
risk responses in renesting. We suggest that species invest-ing in Frs should not continue breedi... more risk responses in renesting. We suggest that species invest-ing in Frs should not continue breeding in short breeding seasons in response to predation risk but without time con-straints, their response should be similar to species invest-ing in crs, e.g. within-season dispersal and increased nest concealment. Keywords cost of reproduction · Information use · nest survival · replacement clutch · Migratory shorebird
Background: Populations living in fragmented habitats may suffer from loss of genetic variation a... more Background: Populations living in fragmented habitats may suffer from loss of genetic variation and reduced between-patch dispersal, which are processes that can result in genetic differentiation. This occurs frequently in species with reduced mobility, whereas genetic differentiation is less common among mobile species such as migratory birds. The high dispersal capacity in the latter species usually allows for gene flow even in fragmented landscapes. However, strongly philopatric behaviour can reinforce relative isolation and the degree of genetic differentiation. The Southern Dunlin (Calidris alpina schinzii) is a philopatric, long-distance migratory shorebird and shows reduced dispersal between isolated breeding patches. The endangered population of the Southern Dunlin breeding at the Baltic Sea has suffered from habitat deterioration and fragmentation of coastal meadows. We sampled DNA across the entire population and used 12 polymorphic microsatellite loci to examine whether t...
Additional file 2: Figure S1. ΔK values from the Structure analysis. Table S2. Mean LnPs and stan... more Additional file 2: Figure S1. ΔK values from the Structure analysis. Table S2. Mean LnPs and standard deviations for different K-values from program Structure Harvester.
Additional file 3: Table S3. Information on locations of sampled populations, sampling years and ... more Additional file 3: Table S3. Information on locations of sampled populations, sampling years and permits.
Migration during spring is usually faster than during autumn because of competition for breeding ... more Migration during spring is usually faster than during autumn because of competition for breeding territories. In some cases, however, the costs and benefits associated with the environment can lead to slower spring migration, but examples are quite rare. We compared seasonal migration strategies of the endangered Baltic population of the dunlin (Calidris alpina schinzii) using light-level geolocator data from 26 individuals breeding in Finland. Autumn migration was faster, with individuals showing a "jump" and "skipping" migration strategy characterised by fewer stationary periods, shorter total stopping time and faster flight. Spring migration was slower, with individuals using a "skipping" strategy. The duration of migration was longer for early departing birds during spring but not during autumn suggesting that early spring migrants are prevented from arriving to the breeding areas or that fueling conditions are worse on the stopover sites for early ...
Migration during spring is usually faster than during autumn because of competition for breeding ... more Migration during spring is usually faster than during autumn because of competition for breeding territories. In some cases, however, the costs and benefits associated with the environment can lead to slower spring migration, but examples are quite rare. We compared seasonal migration strategies of the endangered Baltic population of the dunlin (Calidris alpina schinzii) using light-level geolocator data from 26 individuals breeding in Finland. Autumn migration was faster, with individuals showing a "jump" and "skipping" migration strategy characterised by fewer stationary periods, shorter total stopping time and faster flight. Spring migration was slower, with individuals using a "skipping" strategy. The duration of migration was longer for early departing birds during spring but not during autumn suggesting that early spring migrants are prevented from arriving to the breeding areas or that fueling conditions are worse on the stopover sites for early ...
Supplementary methods, Tables and Figures provides further details on field methods, data, and re... more Supplementary methods, Tables and Figures provides further details on field methods, data, and results that support the main text. (PDF 637 kb)
Background Populations living in fragmented habitats may suffer from loss of genetic variation an... more Background Populations living in fragmented habitats may suffer from loss of genetic variation and reduced between-patch dispersal, which are processes that can result in genetic differentiation. This occurs frequently in species with reduced mobility, whereas genetic differentiation is less common among mobile species such as migratory birds. The high dispersal capacity in the latter species usually allows for gene flow even in fragmented landscapes. However, strongly philopatric behaviour can reinforce relative isolation and the degree of genetic differentiation. The Southern Dunlin (Calidris alpina schinzii) is a philopatric, long-distance migratory shorebird and shows reduced dispersal between isolated breeding patches. The endangered population of the Southern Dunlin breeding at the Baltic Sea has suffered from habitat deterioration and fragmentation of coastal meadows. We sampled DNA across the entire population and used 12 polymorphic microsatellite loci to examine whether th...
-------------------------------------------------------------------------------------------------... more ------------------------------------------------------------------------------------------------------<br>Description of the dataset "Supplementary Data 3 - Study sites.csv"<br>--------------------------------------------------------------------------------------------------------<br> The dataset <br> - is used in the paper "Unexpected diversity in socially synchronized rhythms of shorebirds" Nature 2016 by M. Bulla et al<br> - contains estimates of mean female and male wing length for each population of biparental shorebirds from a specific study site, plus the locations of the study site, whether the locations had tide, and whether the tide was used by the population for foraging, and how the incubation was monitored.<br>--------------------------------------------------------------------------------------------------------<br> Questions can be directed to: Martin Bulla (bulla.mar@gmail.com)<br>--------------------------------------------------------------------------------------------------------<br> Values are separated by comma. <br>--------------------------------------------------------------------------------------------------------<br> 1. scinam : scientific name of the species<br> 2. sp : four letter abbreviation of the species's English name<br> 3. study_site : name of the study site<br> 4. site_abbreviation : four letter abbreviation of the study site<br> 5. type : was the study site at the breeding ground (breeding) or not (wintering)<br> 6. lat : latitude of the study site (decimal)<br> 7. lon : longitude of the study site (decimal)<br> 8. tidal_habitat : is the study site at primarily tidal habitat (y=yes, n=no)<br> 9. tidal_used : if the study site is at primarily tidal habitat, do the birds use it for foraging (y=yes, n=no)<br>10. incubation_monitoring : method used to monitor incubation (for details see the paper's Extended Data Table 4)<br>11. sexing_method : i [...]
Uploads