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	</topic><topic id="http://thesaurus.bhlscielo.org/vocab/pt?tema=630"><instanceOf><topicRef xlink:href="#term"/></instanceOf><baseName><baseNameString>Isolamento pré-zigótico</baseNameString></baseName>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ <p>Mecanismos de isolamento reprodutivo que impedem a realização da cópula. Tais mecanismos podem ser comportamentais (mudança de comportamento de corte ou aversão), de hábitat (organismos habitam regiões diferentes), morfológicos (indivíduos de diferentes tamanhos) de ciclo reprodutivo (indivíduos se reproduzem em épocas distintas), entre outros. Espécies isoladas reprodutivamente por mecanismos pré-zigóticos podem ser férteis entre si, dada as condições apropriadas. Normalmente são tomados como indícios de processos de especiação recente ou em andamento.</p> ]]></baseNameString></baseName>  </occurrence>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ <p>Reproductive isolation mechanisms that prevent copulation. Such mechanisms can be behavioral (change in courtship behavior or aversion), habitat (organisms inhabit different regions), morphological (individuals of different sizes), and involving the reproductive cycle (individuals reproduce at different times). Species reproductively isolated by pre-zygotic mechanisms may be fertile between each other, given the appropriate conditions. They are usually taken as evidence of recent or ongoing speciation process.</p> ]]></baseNameString></baseName>  </occurrence>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ <p>Mecanismos de aislamiento reproductivo que impiden la cópula. Estos pueden ser comportamentales (cambios en el comportamiento de cortejo o de aversión), de hábitat (los organismos habitan en regiones distintas), morfológicos (individuos con tamaños diferentes), relacionados al ciclo reproductivo (individuos se reproduce en diferentes momentos) u de otros tipos. Especies reproductivamente aisladas por mecanismos precigóticos pueden ser fértiles entre sí, dadas las condiciones apropiadas. Por lo general se las toma como evidencia de un proceso de especiación reciente o en curso.</p> ]]></baseNameString></baseName>  </occurrence></topic>  <association>    <instanceOf>      <topicRef xlink:href="#broader-narrower"/>    </instanceOf>    <member>      <roleSpec>  <topicRef xlink:href="#narrower"/>      </roleSpec>      <topicRef xlink:href="#http://thesaurus.bhlscielo.org/vocab/pt?tema=630"/>    </member>    <member>      <roleSpec>  <topicRef xlink:href="#broader"/>      </roleSpec>      <topicRef xlink:href="#http://thesaurus.bhlscielo.org/vocab/pt?tema=629"/>    </member>  </association></topicMap>