appendix

Demographic and ecological traits for cooperative breeders and their matched non-cooperative counterpart

Risk

Includes the prevalence of each foraging mode as a function of several independent variables including spatial position and food availability

Dataset

Provides for each focal observation the duration and feeding behaviour recorde

appendix_2

Raw data concerning the timing of migration in breeding North American bird

jab_island

Data set used to analyze the data. Legends are provided for each column

basicmodel

FreeBASIC codes for the main model

quorum

This is the computer program that was used to create the data in this paper. It is a quick BASIC program

Percentage of scans with vigilance in family flocks of two crane species.

<p>Vigilance is shown for adults (A) and juveniles (J) in red-crowned crane (RCC) and common crane (CC).</p

Comparisons of observed and expected collective vigilance between adults and juveniles in two crane species.

<p>Collective vigilance was calculated using one adult and one juvenile in each flock. A positive value indicates coordinated vigilance while a negative value indicates synchronised vigilance (CC: common crane; RCC-core: red-crowned crane in the core zone; RCC-buffer: red-crowned crane in the buffer zone).</p

Comparisons of observed and expected collective vigilance between adults in two crane species.

<p>Collective vigilance was calculated using the two adults of each flock. A positive contrast value indicates coordinated vigilance while a negative value indicates synchronised vigilance (CC: common crane; RCC-core: red-crowned crane in the core zone; RCC-buffer: red-crowned crane in the buffer zone).</p