?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Inversion+of+initial+dominance+relationships+following+the+interchange+of+roles+of+resident+and+intruder+within+pairs+of+male+swordtail+fish+(Xiphophorus+helleri)&rft.creator=Goulet%2C+Claude&rft.creator=Beaugrand%2C+Jacques&rft.subject=Animal+Behavior&rft.subject=Ethology&rft.description=This+experiment+consisted++of++75+different+pairs+composed+of+two+male+adults+Xiphophorus+helleri++meeting+each+other+twice.+On+the+first+occasion%2C++one+of+the+fish+was+familiarized+with+the+meeting+place+for+3h+(resident)+while+its+opponent+was+familiarized+with+another+aquarium+(intruder).+Upon+dominance+of+one+individual+over+the+other%2C+the+pair+members+were+separated+and+returned+to+their+respective+home+groups+for+168+hours+(7+days).+After+this+period+of+separation%2C+the+same++pair+members+were+reunited+and+met+while+roles+had+been+reversed%3A+the+initial+resident+became+the+intruder%2C+and+the+initial+intruder+was+given+prior-residency.+Individuals+in+the+initial++resident+role+defeated++the+initial++intruder+in+a+significant+majority+of+cases+(76%25).+On+their+second+meeting%2C++the+newly+established+dominance+relationship+was+noted+in+favour+of+the+new+resident+in+a+significant+majority+of+cases+(82%25)%2C+and+in+a+reversed+direction+as+compared+to+the+initially+established+dominance+order.+This+shows+that+prior-residence+is+a+powerful+determinant+of+dyadic+dominance+outcome+in+Xiphophorus+males+when+fish+show+minimal+size+differences.+&rft.date=2001-11&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1933%2F3%2Fgoulet-beaugrand-inversions.pdf&rft.identifier=++Goulet%2C+Claude+and+Beaugrand%2C+Jacques++(2001)+Inversion+of+initial+dominance+relationships+following+the+interchange+of+roles+of+resident+and+intruder+within+pairs+of+male+swordtail+fish+(Xiphophorus+helleri).++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1933%2F