Roach question

[8 leg wonder]

does anyone no if female roaches can make more than one ootheca(fertile)without being mated after the first one was produced

 

[nomad85]

Yes. I think once a roach has been mated it will stay fertile until it dies.

 

[Dark Raptor]

Some species are parthenogenetic. As I know N. cinerea doesn't need male to breed.

 

[nomad85]

thats not true, N. Cinerea arent parthenogenic, but Pycnoscelus surinamensis (surinam cockroaches) are.

 

[Dark Raptor]

thats not true, N. Cinerea arent parthenogenic, but Pycnoscelus surinamensis (surinam cockroaches) are.

Ok. Now I've checked it:

"Nauphoeta cinerea is an ovoviviparous cockroach in which some females are capable of switching from a sexual mode of reproduction to an asexual mode when isolated from males. Yet, while facultative parthenogenesis can occur in individuals, few females make the switch."

Taken from: Corley LS, Blankenship JR, Moore AJ, Moore PJ.: Developmental constraints on the mode of reproduction in the facultatively parthenogenetic cockroach Nauphoeta cinerea. Evol Dev. 1999 Sep-Oct;1(2):90-9.

So I was right

 

[nomad85]

I guess so
But surinams are a better example