遗传控制鸟类迁徙路径
<p> 遗传控制鸟类迁徙路径 <span word="By">By</span> <span word="tracking">tracking</span> <span word="hybrids">hybrids</span> <span word="between">between</span> <span word="songbird">songbird</span> <span word="species">species</span>, <span word="investigators">investigators</span> <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="migration">migration</span> <span word="routes">routes</span> <span word="are">are</span> <span word="under">under</span> <span word="genetic">genetic</span> <span word="control">control</span> <span word="and">and</span> <span word="could">could</span> <span word="be">be</span> <span word="preventing">preventing</span> <span word="interbreeding">interbreeding</span>. <span word="The">The</span> <span word="research">research</span>, <span word="which">which</span> <span word="is">is</span> <span word="published">published</span> <span word="in">in</span> <span word="Ecology">Ecology</span> <span word="Letters">Letters</span>, <span word="was">was</span> <span word="conducted">conducted</span> <span word="using">using</span> <span word="geolocators">geolocators</span> <span word="that">that</span>, <span word="like">like</span> <span word="GPS">GPS</span>, <span word="record">record</span> <span word="the">the</span> <span word="position">position</span> <span word="of">of</span> <span word="a">a</span> <span word="bird">bird</span> <span word="and">and</span> <span word="allow">allow</span> <span word="its">its</span> <span word="long">long</span> <span word="distance">distance</span> <span word="movement">movement</span> <span word="to">to</span> <span word="be">be</span> <span word="tracked">tracked</span>. <span word="Compared">Compared</span> <span word="with">with</span> <span word="their">their</span> <span word="parents">parents</span>, <span word="hybrids">hybrids</span> <span word="exhibited">exhibited</span> <span word="increased">increased</span> <span word="variability">variability</span> <span word="in">in</span> <span word="their">their</span> <span word="migratory">migratory</span> <span word="routes">routes</span>: <span word="some">some</span> <span word="used">used</span> <span word="intermediate">intermediate</span> <span word="routes">routes</span> <span word="across">across</span> <span word="less">less</span> <span word="suitable">suitable</span> <span word="areas">areas</span>, <span word="while">while</span> <span word="others">others</span> <span word="used">used</span> <span word="the">the</span> <span word="same">same</span> <span word="routes">routes</span> <span word="as">as</span> <span word="one">one</span> <span word="parental">parental</span> <span word="group">group</span> <span word="on">on</span> <span word="fall">fall</span> <span word="migration">migration</span> <span word="and">and</span> <span word="the">the</span> <span word="other">other</span> <span word="on">on</span> <span word="spring">spring</span> <span word="migration">migration</span>. <span word="This">This</span> <span word="is">is</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span> <span word="we">we</span> <span word="ve">ve</span> <span word="been">been</span> <span word="able">able</span> <span word="to">to</span> <span word="track">track</span> <span word="songbirds">songbirds</span> <span word="over">over</span> <span word="the">the</span> <span word="entire">entire</span> <span word="annual">annual</span> <span word="cycle">cycle</span>, <span word="and">and</span> <span word="the">the</span> <span word="data">data</span> <span word="we">we</span> <span word="collected">collected</span> <span word="support">support</span> <span word="a">a</span> <span word="longstanding">longstanding</span> <span word="hypothesis">hypothesis</span> <span word="in">in</span> <span word="ecological">ecological</span> <span word="speciation">speciation</span>, <span word="that">that</span> <span word="differences">differences</span> <span word="in">in</span> <span word="migratory">migratory</span> <span word="behavior">behavior</span> <span word="could">could</span> <span word="be">be</span> <span word="acting">acting</span> <span word="as">as</span> <span word="postmating">postmating</span> <span word="reproductive">reproductive</span> <span word="isolating">isolating</span> <span word="barriers">barriers</span>, <span word="said">said</span> <span word="lead">lead</span> <span word="author">author</span> <span word="Kira">Kira</span> <span word="Delmore">Delmore</span>.</p><p> </p>
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