How long do female remain in maturity? Males?

[Sharno]

I know this probably varies - but just take Brachypelma for example. I am just trying to get a sense of how the lifespan works, in most general sense - could someone break it down? Considering how many varying answers you get.

How would you break down a typical Brachypelma's lifespan in years/DLS for both male and female? And so how many years does it spend as a "mature" female vs. "mature" male (before it dies)?

As an example and wild guess)

for Female:

sling to juvie, up to 2 inch DLS, approx 1-2 years
matures into adult - approx. year 3 - 4 (or is it approx year 7-8?)
adult years 8 - 22
post-adult 22-30 (I have read Brachypelma live 30 years - females- but at some point stop breeding obviously)

I know people measure maturity by what percent they are of "full body size" and it can just depend on how much it eats and metabolism - but any thoughts in general?

Has anyone raised a sling to mature female of Brachy and what was that time span?

 

[jakykong]

I don't think anyone can give you hard numbers like that. Partially because it varies with temperature and feeding and species (and probably other variables), and partly because we just don't have the data. Usually settle for "slow", "medium", or "fast" growth.

 

[Ultum4Spiderz]

+1 well said Jaykong
Appetite of the spider can also make it grow much faster than its sack-mates.
Hungry spiders almost always grow the fastest

Higher temps could raise there hunger also possibly

 

[Marijan2]

they are mature when they reach 3/4 of their full size, and the lifespan is determined by alot of factors, mainly by food and temperature

 

[macbaffo]

R: How long do female remain in maturity? Males?

Female reach maturity when spermathecae is fully sclerotized.

 

[cmcghee358]

Also, I don't believe there is any evidence that Tarantula's in their twilight years become infertile. They don't experience menopause, so I don't imagine there is mechanism in place that would prevent them from being gravid up until they died.