Speciation AllopatricSpeciation
thatcaninterbreed rproducefertileoffsprings
speciesgroup organisms of popbecomegeographicallyseparated
alogicalspeciesconcept ioriginal
pop
by
defined Ernst
Mayr 2overtime
groupof actualor wi
potentially interbreedingpop commongene 3issplitbya geographicbarrier
poolthatarereproductivelyisolatedfrom
othergroups awhichpreventsinterbreedingbetweenthepoppopevolveindependently
hyburious pointofbecomingdittspecies
stothe
tybriasoffspringoftwoindividualsof
diffspecies Symmpatria speciation
1 viabilitythey
reduced die newspecieswithinsameareaasoriginalspeciesnotgeographicallyisolated
popforms
hybridzygotemayfailtodevelopproperlyintofetus iindividualsoftheoriginalpopulation
dodevelopoftendiesoonafterbirth
hybridsthat 2Hasausuallygeneticchangethat
2Hybridsterility 3preventsinterbreedingbetweenitsoriginal
popthepopevolveindependentlyinthe
viablebutsterileunabletobreed
hybridof2speciesmaybe samelocation
3HybridBreakdown 4tothepointofbecomingdietspecies
genofhybridmaybefertile
1st butsubsequentgenerationsare
infertileornon
viable
limitations
ceptofspecies
on abletointerbreedcannotapplytoextinctpop
being
ctheirbreedingpatternsareoftenunknown
extinctforms
mustusually beclassifiedbasedonmorphologyshape
donotinterbreed tsoareassigned
sexuallyreproducingorganisms
sspeciesonthebasisofappearanceorbiochemicalsimilarities
Ioniation
volution infreqofaninheritedtraitinapopovertime
change
opulationgroupof liveinsame
organismsbelongingtosamespeciesthat
reaatthesametime usedtostudygeneticdiversityrevolution
speciationoccursatlevelofpopulations popofonespeciesmay
overtimeevolvetobecomediffspecies
oftmation of Species
ep1popbecomereproductivelyisolatedfromeach
other
reproductiveisolation
terzisolatedpopevolveindependently
reproductiveisolationMechanisms
eo
graphicisolation popbecomegeographicallyisolated
arriersincludemountainsriversoceans
featuresbebarrierstosomespeciesbutnotothers
may
isolation
emporal related reproduceatdifferent
may
s pecies times
enavioralisolationuniquebehavioralpatterns rituals
aentitymembersofspecies
attractmatesofsamespecies
ritualsmatingcans
courtship
thatcaninterbreed rproducefertileoffsprings
speciesgroup organisms of popbecomegeographicallyseparated
alogicalspeciesconcept ioriginal
pop
by
defined Ernst
Mayr 2overtime
groupof actualor wi
potentially interbreedingpop commongene 3issplitbya geographicbarrier
poolthatarereproductivelyisolatedfrom
othergroups awhichpreventsinterbreedingbetweenthepoppopevolveindependently
hyburious pointofbecomingdittspecies
stothe
tybriasoffspringoftwoindividualsof
diffspecies Symmpatria speciation
1 viabilitythey
reduced die newspecieswithinsameareaasoriginalspeciesnotgeographicallyisolated
popforms
hybridzygotemayfailtodevelopproperlyintofetus iindividualsoftheoriginalpopulation
dodevelopoftendiesoonafterbirth
hybridsthat 2Hasausuallygeneticchangethat
2Hybridsterility 3preventsinterbreedingbetweenitsoriginal
popthepopevolveindependentlyinthe
viablebutsterileunabletobreed
hybridof2speciesmaybe samelocation
3HybridBreakdown 4tothepointofbecomingdietspecies
genofhybridmaybefertile
1st butsubsequentgenerationsare
infertileornon
viable
limitations
ceptofspecies
on abletointerbreedcannotapplytoextinctpop
being
ctheirbreedingpatternsareoftenunknown
extinctforms
mustusually beclassifiedbasedonmorphologyshape
donotinterbreed tsoareassigned
sexuallyreproducingorganisms
sspeciesonthebasisofappearanceorbiochemicalsimilarities
Ioniation
volution infreqofaninheritedtraitinapopovertime
change
opulationgroupof liveinsame
organismsbelongingtosamespeciesthat
reaatthesametime usedtostudygeneticdiversityrevolution
speciationoccursatlevelofpopulations popofonespeciesmay
overtimeevolvetobecomediffspecies
oftmation of Species
ep1popbecomereproductivelyisolatedfromeach
other
reproductiveisolation
terzisolatedpopevolveindependently
reproductiveisolationMechanisms
eo
graphicisolation popbecomegeographicallyisolated
arriersincludemountainsriversoceans
featuresbebarrierstosomespeciesbutnotothers
may
isolation
emporal related reproduceatdifferent
may
s pecies times
enavioralisolationuniquebehavioralpatterns rituals
aentitymembersofspecies
attractmatesofsamespecies
ritualsmatingcans
courtship
