?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Prior+residency+and+the+stability+of+dominance+relationships+in+pairs+of+green+swordtail+fish+Xiphophorus+helleri+(Pisces%2C+Peociliidae)&rft.creator=Beaugrand%2C+Jacques+P.&rft.creator=Beaugrand%2C+Martin&rft.subject=Animal+Behavior&rft.subject=Ethology&rft.subject=Comparative+Psychology&rft.description=The+stability+of+dominance+relationships+between+pairs+of+male+Green+Swordtail+fish+was+followed+daily+for+20+consecutive+days.+In+one+experimental+sample+composed+of+21+pairs%2C+dominance+of+one+of+the+fish+had+been+favoured+on+the+first+day+by+giving+the+fish+prior+familiarity+(prior+residency)+with+the+aquarium+where+it+was+to+meet+an+intruder.+In+a+control+sample+composed+of+12+pairs%2C+two+intruders+met+in+an+unfamiliar+aquarium.+It+was+expected+that+the+advantage+given+to+the+dominant+by+familiarity+with+the+aquarium+on+the+first+day+would+disappear+as+the+subordinate+acquired+in+turn+familiarity+with+the+milieu.+In+comparison+with+pairs+composed+of+two+intruders%2C+this+would+show+up+by+more+frequent+inversions+of+the+initial+dominance+relationship+in+pairs+composed+of+a+prior+resident+and+an+intruder.+Only+two+inversions+occurred+over+the+20+days+of+follow+up+and+they+occurred+equally+in+the+experimental+(5%25)+and+control+(8%25)+samples.+These+results+confirm+the+great+stability+of+dominance+relationships+in+dyads+and+invalidate+the+hypothesis+that+the+prior+residency+advantage+would+decay+as+the+subordinate+became+familiar+with+the+aquarium.+Unexpectedly%2C+13+of+the+66+(20%25)+fish+died+over+the+20+days.+Death+equally+occurred+in+both+samples+but+12+(92%25)+cases+implied+initial+subordinates.+The+exception+was+an+initial+dominant+which+had+become+the+subordinate+pair+member+three+days+before+death.+Various+hypotheses+are+suggested+to+account+for+the+selective+deaths+of+subordinates.%0A&rft.publisher=Elsevier&rft.date=1991&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1942%2F3%2Fbeaugrand-beaugrand-1991-mort.pdf&rft.identifier=++Beaugrand%2C+Jacques+P.+and+Beaugrand%2C+Martin++(1991)+Prior+residency+and+the+stability+of+dominance+relationships+in+pairs+of+green+swordtail+fish+Xiphophorus+helleri+(Pisces%2C+Peociliidae).++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1942%2F