Description acceptable. This process is driven primarily by abiotic forces like climate rather than biotic competition according to the court jester hypothesis. One model of this process likens it to a ring and is exemplified by Larus gulls (10[1])having a range that circles the North Pole. (10[1]-5[1])Darwin’s finches are often (10[1])cited as exhibiting a rapid (10[1])degree (10[1]-5[2])of this (10[1])process (10[3]-5[3])due (10[1])to (10[2]-5[1])adaptive (10[3]-5[2])radiation. (10[3]-5[7])One form of this process (10[1]-5[1])occurs when physical barriers block gene flow. Whether (-5[1])this process occurs (0[1])among isolated (10[1])populations or in one location differentiates (-5[1])its “allopatric” and “sympatric” mechanisms. (10[1]0[1])For 10 points, name this evolutionary process of forming a new taxonomic unit (10[1])more granular than a genus. ■END■ (10[12]0[2])