 Another aspect of the kakapo 's breeding system is that a female can alter the sex ratio of her offspring depending on her condition . A female who eats protein @-@ rich foods produces more male offspring ( males have 30 % – 40 % more body weight than females ) . Females produce offspring biased towards the dispersive sex when competition for resources ( such as food ) is high and towards the non @-@ dispersive sex when food is plentiful . A female kakapo will likely be able to produce eggs even when there are few resources , while a male kakapo will be more capable of perpetuating the species when there are plenty , by mating with several females . This supports the Trivers – Willard hypothesis . The relationship between clutch sex ratio and maternal diet has conservation implications , because a captive population maintained on a high quality diet will produce fewer females and therefore fewer individuals valuable to the recovery of the species . 
 Another aspect of the kakapo <a href='null_genetive' title='1'><mark>'s</mark></a>breeding system is that a female can alter the sex ratio of her offspring depending on her condition . A female <a href='null_relcl' title='2'><mark>who</mark></a><a href='uninflect' title='3'><mark>eats</mark></a> protein @-@ rich foods <a href='uninflect' title='4'><mark>produces</mark></a> more male offspring ( males <a href='got' title='5'><mark>have</mark></a> 30 % – 40 % more body weight than females ) . Females produce offspring biased towards the dispersive sex when competition for resources ( such as food ) <a href='drop_aux' title='6'><mark>is</mark></a>high and towards the non @-@ dispersive sex when food <a href='drop_aux' title='7'><mark>is</mark></a>plentiful . A female kakapo will likely be able to produce eggs even when <a href='dey_it' title='8'><mark>there</mark></a> are few resources , while a male kakapo will be more capable of perpetuating the species when <a href='dey_it' title='9'><mark>there</mark></a> are plenty , by mating with several females . This <a href='uninflect' title='10'><mark>supports</mark></a> the Trivers – Willard hypothesis . The relationship between clutch sex ratio and maternal diet <a href='got' title='11'><mark>has</mark></a> conservation implications , because a captive population maintained on a high quality diet will produce fewer females and therefore fewer individuals valuable to the recovery of the species . 
Another aspect of the kakapo  breeding system is that a female can alter the sex ratio of her offspring depending on her condition . A female eat protein @-@ rich foods produce more male offspring ( males got 30 % – 40 % more body weight than females ) . Females produce offspring biased towards the dispersive sex when competition fir resources ( such as food ) high and towards the non @-@ dispersive sex when food plentiful . A female kakapo will likely b able to produce eggs even when it is few resources , while a male kakapo will be more capable of perpetuating the species when it is plenty , by mating w several females . dis support the Trivers – Willard hypothesis . The relationship between clutch sex ratio and maternal diet got conservation implications , because a captive population maintained on a high quality diet will produce fewer females and therefore fewer individuals valuable to the recovery of the species .