He's set to appear in court later Friday to face charges of attempt to obstruct police, mischief under, failure to comply with Reopening Act.
A crowd of supporters chanted "Shame" as police took Adam Skelly away.
A furious Premier Doug Ford said he will introduce legislation making a ban on poppy wearing illegal.
The Justice Centre for Constitutional Freedoms, which is representing the pageant, said Yaniv has male genitals and was born a biological male, but now self-identifies as...
"We would like to express our support of Albertans that goes a bit beyond lip service. To this end, we have enclosed a cheque for $1,000."