DOI: 10.5061/dryad.91d70
title: Data from: When Siberia came to the Netherlands: the response of continental black-tailed godwits to a rare spring weather event

description: 1. Extreme weather events have the potential to alter both short- and
 long-term population dynamics as well as community- and ecosystem-level
 function. Such events are rare and stochastic, making it difficult to
 fully document how organisms respond to them and predict the repercussions
 of similar events in the future. 2. To improve our understanding of the
 mechanisms by which short-term events can incur long-term consequences, we
 documented the behavioural responses and fitness consequences for a
 long-distance migratory bird, the continental black-tailed godwit Limosa
 limosa limosa, resulting from a spring snowstorm and three-week period of
 record low temperatures. 3. The event caused measurable responses at three
 spatial scales – continental, regional and local – including migratory
 delays (+19 days), reverse migrations (&gt;90 km), elevated metabolic
 costs (+8·8% maintenance metabolic rate) and increased foraging rates
 (+37%). 4. There were few long-term fitness consequences, however, and
 subsequent breeding seasons instead witnessed high levels of reproductive
 success and little evidence of carry-over effects. 5. This suggests that
 populations with continued access to food, behavioural flexibility and
 time to dissipate the costs of the event can likely withstand the
 consequences of an extreme weather event. For populations constrained in
 one of these respects, though, extreme events may entail extreme
 ecological consequences.
description: Yearly Black-tailed
 Godwit Return RatesThis data includes data
 on whether or not an individual godwit that was seen in one year, returned
 to their breeding grounds the following year. All data is categorized in
 reference to individual godwits (signified by their Colour Code). The
 initial year in which an individual was seen is not marked, only the
 following year is denoted with a 0 (not seen) or a 1 (seen). It also
 includes a column denoting each molecular individual's sex--0
 (unknown), 1 (female), and 2 (male).Yearly Return
 Rates.xlsx2013 March-May
 Resightings of Black-tailed GodwitsThis file includes the
 date and location of all resightings of individually colour-marked
 Black-tailed Godwits from March-May 2013 north of Iberia. The colour codes
 listed in this file match up with those used in all other files for this
 publication.2013
 Resightings.xlsxFueling
 DataThis file contains data
 pertaining to the foraging rates of female Black-tailed Godwits in our
 study area in Friesland, The Netherlands during the spring of 2013. Data
 are grouped by individual by day and averaged across all of the
 three-minute periods for which that individual was observed on that day.
 Successes refers to the number of prey items consumed by an individual
 during a three minute period.Response
 DataThis file contains data
 pertaining to the behavioral response of all individual Black-tailed
 Godwits that were seen in our study in Friesland during the spring of
 2013. It includes their reproductive parameters in both 2013 and 2014, as
 well as their individual arrival date history. Response type is coded as:
 1 (stayed), 2 (reverse migrated), 3 (delayed arrival), and 4 (normally
 late arriving). For all other categories, 0 denotes a negative result
 (e.g., nest failed), while 1 denotes a positive result (e.g., fledged
 successfully).All nests
 2005-2014This file contains data
 on nests found in our study area in Friesland between 2005-2014. It
 includes their hatching success, fledging success, clutch size, average
 egg volume, and initiation date, as well as the colour code of the
 corresponding adults. In all cases, 0 denotes a negative result (i.e.,
 nest failed to hatch), and 1 a positive result (i.e., nest
 hatched).All
 nests.csvBreeding
 PropensityThis files contains data
 on the breeding propensity of Black-tailed Godwits seen in our study area
 prior to the initiation of the first nest from 2005-2014. A 0 denotes that
 an individual was not found nesting, a 1 that it was found nesting, and a
 blank that it was not seen in that year.Propensity.xlsxPolder CountsThis file contains data on the number of territorial Black-tailed Godwits seen during our weekly survey of every parcel of every polder in our study area in Friesland during the pre-breeding period. In this file, NA = 0 territorial godwits during a survey period.