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Evolution of foraging strategies in shorebirds : an ecomorphological approach

AuthorsBarbosa, Andrés ; Moreno, Eulalia
Issue Date1999
PublisherOrnithological Societies of North America
CitationThe Auk 116(3):712-725, 1999
AbstractWsteu diedt he relationshipbse tweenb ill andh indlimbm orphologya ndf oragingb ehaviori n 17 specieso f shorebirdsw ithin a phylogeneticfr amework.T he results showt hat the evolutionaryc hangein bill lengthi s relatedt o the evolutionaryc hangein foraging strategiesfr om visual hunting to tactileh unting.W e alsof ound evolutionaryr elationshipsb etweena n increasein bill lengtha ndb othp lunginga nds weepingfo ragingm ovements, a nd a decreasein bill length and "routing" behaviorN. o relationshipws ere found betweenh indlimb morphologya nd movementp attern (continuoush unting speciesv s. pause-travesl pecies)E. xaminingt he evolutionaryra te of changein bill and hindlimbs tructuress howst hat the family Scolopacidaaen d the subfamilyR ecurvirostrinaeev olvedm ore rapidly thant he specieso f CharadriinaeR. esultsf rom our ecomorphologicaanl de volutionary analysiss upportt he hypothesisb y Zweersa nd co-workerso n the evolutiono f feeding mechanismisn shorebirdsR. eceive5d J anuary1 998,a ccepte1d4 Decembe1r9 98.
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