It is my understanding that in most/all species the number of eggs in the ovaries is fixed during the egg/worm stage.
Most animals breed right up to their death
Correct, unless the life span is extended or breeding is forced
Take the human species...basically our bodies are built to last about 45yrs, then noticable things like eyes teeth start to give up the ghost...as does mentopause start to kick in.
With capitive birds, good diets, lack of preditors etc, the life expectantcy in generally doubles
Most animals breed right up to their death usually because the stress of breeding has killed them
I disagree, just because breeding and death may occur at the same time, that doesnt mean death is because of stress of breeding.
Consider this senerio...every few yrs enviromental conditions change, be it a drought/floods/cold and food becomes short...which part of the population is hit hardest 1st? the old and the older...which just happen to be towards the end of their breeding life....so what did they die of?
A cold winter, lack of food, a hot summer stessing on a old body, or stress of breeding? _________________ My Spelling is Not Incorrect...It's 'Creative'
So if we say a parrot will live on average 15 years in the wild and 25 years in captivity. Would you expect them to stop breeding around the 15-year mark or later? I'm asking as 1 of my conure hens is of unknown age and wanted to know if she could still breed. She is the dominant bird in the flight.
I dont knowhow it works with birds since they lay eggs
A cow or human has x amount of eggs, then each menstral cycle they drop one into the worm, If it gets fertalised one gets a pregency, if not it is passed out. And each egg is produced on a regular basis, seasonal or regular as the species does.
Assuming a bird is similar to the above, yes one would expect
"So if we say a parrot will live on average 15 years in the wild and 25 years in captivity. Would you expect them to stop breeding around the 15-year mark"
Oh here is another unrelated but similar basis bit of useless information
Species that have a higher heart beat rate, live shorter...
Each species have similar therotical heatbeats in a life time...
If one compares an athelete, who on ave has a slower heart beat, to someone who is unfit, a smoker...the athelete will live longer...they will both have the same number of heart beats....
An elephant has a heat rate similar to a human, and a similar life expectacy....
So if u are unfit, a smoker and want to livea long time, get a pacemaker for the ticker and slow your heart down _________________ My Spelling is Not Incorrect...It's 'Creative'
That has never realy been established..This topic has been discussed before, the general consencious I think is 12 to 15 yrs depending on the diet, enviroment etc.
Many books and web sites say 5 to 7, but lets face it most ppl think their birds live on seed, and kakariki and most other parrots require at least 1/3 to 2:1 veggies and fruit...kakariki eat 2 to 3 times veggies fruit to seed.
We have very experianced and knowledgable kakariki breeders here, hence with their care we get longer living birds _________________ My Spelling is Not Incorrect...It's 'Creative'
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