Question

What are allopatric speciation?​

Answer 1

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• ᴀʟʟᴏᴘᴀᴛʀɪᴄ sᴘᴇᴄɪᴀᴛɪᴏɴ, ᴀʟsᴏ ʀᴇғᴇʀʀᴇᴅ ᴛᴏ ᴀs ɢᴇᴏɢʀᴀᴘʜɪᴄ sᴘᴇᴄɪᴀᴛɪᴏɴ, ᴠɪᴄᴀʀɪᴀɴᴛ sᴘᴇᴄɪᴀᴛɪᴏɴ, ᴏʀ ɪᴛs ᴇᴀʀʟɪᴇʀ ɴᴀᴍᴇ, ᴛʜᴇ ᴅᴜᴍʙʙᴇʟʟ ᴍᴏᴅᴇʟ, ɪs ᴀ ᴍᴏᴅᴇ ᴏғ sᴘᴇᴄɪᴀᴛɪᴏɴ ᴛʜᴀᴛ ᴏᴄᴄᴜʀs ᴡʜᴇɴ ʙɪᴏʟᴏɢɪᴄᴀʟ ᴘᴏᴘᴜʟᴀᴛɪᴏɴs ʙᴇᴄᴏᴍᴇ ɢᴇᴏɢʀᴀᴘʜɪᴄᴀʟʟʏ ɪsᴏʟᴀᴛᴇᴅ ғʀᴏᴍ ᴇᴀᴄʜ ᴏᴛʜᴇʀ ᴛᴏ ᴀɴ ᴇxᴛᴇɴᴛ ᴛʜᴀᴛ ᴘʀᴇᴠᴇɴᴛs ᴏʀ ɪɴᴛᴇʀғᴇʀᴇs ᴡɪᴛʜ ɢᴇɴᴇ ғʟᴏw.

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Answer 2

Allopatric speciation occurs when reproductive isolation is a direct result of the geographical separation of two (or more) populations through a physical barrier, such as an ocean.