Social Information use by Barnacle Geese Branta leucopsis, an Experiment Revisited
[摘要] Reproducingresearchresultsisoneofthecornerstonesofscience.However,fewbiologicalfindingsareactuallyreplicated.Here,werepeatastudydonemorethan35yearsagoonsocialinformationuseinBarnacleGeese.Intheoriginalstudy,modelsofBarnacleGeesewereusedtomeasurehowtheyattractedwildBarnacleGeese(Drentamp;Swierstra1977).ModelswereplacedindifferentlocationsinapastureandthesemodelsattractedmanywildBarnacleGeese,providingstrongevidencefortheuseofsocialinformation.37yearslaterwerepeatedthisexperiment,usingthesamemodels,thesameareaandasimilarresearchprotocol.DespiteanabundanceofwildBarnacleGeeseintheareafrequentlyflyingoverthemodels,themodelsdidnotelicitalandingresponse.Inlinewiththeoriginalstudy,wescoredvigilanceratesandabundanceofgeese.Comparingthesedatatopreviousrecordswefoundthattotalabundanceincreasedbutthatvigilancerateswerelowerthanpreviouslyrecorded.Thedecreasedvigilancesuggeststhatthelandscapehasbecomesaferorthatcompetitionbetweengeesehasintensified;bothcouldexplainareduceduseofsocialinformation.Moregenerally,ourstudyshowstheimportanceofrepeatingexperimentsinecology,especiallyinarapidlychangingworld.
[发布日期] [发布机构]
[效力级别] [学科分类] 动物科学
[关键词] Reproducibility [时效性]
