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General Tarantula Discussion
When breeding or buying slings what’s the male/Female ratio?
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<blockquote data-quote="plessey" data-source="post: 178113" data-attributes="member: 373"><p>I don't think anyone has ever actually done a proper study of the sex ratio of tarantula spiderlings. I've read a couple of papers on other spider species and from what I remember, based on multiple sacs, it was pretty much a 50/50 split. Sometimes the sacs had a higher male ratio and sometimes they had a higher female ratio. I've often seen this ratio of 3 males to every 1 female being touted for Omothymus violaceopes ever since they were first introduced into the hobby but I've never seen any data to actually back this up.</p><p>When it comes to buying slings then obviously the more you buy the greater the chance you have of getting a female. However saying that, I remember getting a colony of 7 Poecilotheria formosa slings from Ray Gabriel and all 7 turned out to be male <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />. It's just pot luck in the end with spiderlings unlike buying "unsexed" sub adults and large juveniles where there is a 95% chance it's male.</p></blockquote><p></p>
[QUOTE="plessey, post: 178113, member: 373"] I don't think anyone has ever actually done a proper study of the sex ratio of tarantula spiderlings. I've read a couple of papers on other spider species and from what I remember, based on multiple sacs, it was pretty much a 50/50 split. Sometimes the sacs had a higher male ratio and sometimes they had a higher female ratio. I've often seen this ratio of 3 males to every 1 female being touted for Omothymus violaceopes ever since they were first introduced into the hobby but I've never seen any data to actually back this up. When it comes to buying slings then obviously the more you buy the greater the chance you have of getting a female. However saying that, I remember getting a colony of 7 Poecilotheria formosa slings from Ray Gabriel and all 7 turned out to be male :D. It's just pot luck in the end with spiderlings unlike buying "unsexed" sub adults and large juveniles where there is a 95% chance it's male. [/QUOTE]
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Tarantula Forum Topics
General Tarantula Discussion
When breeding or buying slings what’s the male/Female ratio?
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