speciation - 2025 ACF Fall

Tossup

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])

ANSWER: speciation [accept descriptions of forming new species; accept ring species; accept sympatric speciation; accept allopatric speciation; prompt on diversification or word forms like diversifying; prompt on evolution or word forms like evolving until “evolutionary” is read; prompt on adaptive radiation or evolutionary radiation until “radiation” is read]

<Editors, Biology>

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Buzzes

Player	Team	Opponent	Position	Value
Jeremy Scurlock	Chipola College	Vanderbilt A	37	10
Kelvin Ni	NYU A	George Mason A	45	-5
Madeline Strauss	Tufts A	Vermont B	45	10
Conner Yamnitz	WashU Grizzlers	Purdue A	49	10
Luc Vulliez	Amherst A	Dartmouth A	54	10
Seth Allen	McMaster A	Toronto B	55	10
Helen Neves	Boise State	Washington Chinook	55	-5
Stephen Donoghue	Sheffield B	Edinburgh A	55	-5
Ben Schindelman	Vassar A	Johns Hopkins	57	10
Aidan Drain	NYU C	Columbia B	58	10
Suhaan Pastakia	Maryland C	Rutgers A	58	-5
Owen Gibbs	Boston College B	Boston University B	58	10
Dylan Tanouye	Tufts B	Brandeis Bach	58	10
Salil Jain	Williams B	Brown B	58	-5
Skand Parvatikar	Arizona State B	Washington Sockeye	58	-5
Ben Mowery	Vermont A	UConn A	59	10
Ethan Young	Williams A	Brown A	60	10
Kyle Hart	MIT B	Williams C	60	-5
Eric Zhu	Cornell D	RIT A	60	10
Jaden Bandy	Rutgers B	NYU B	61	10
Jun Chen	George Mason C	Rowan	61	-5
Thomas Newill	Tufts C	Southern Connecticut State University A	61	-5
Anne Fjeld	Alberta A	Arizona State A	61	10
Yoyo Liu	British Columbia C	British Columbia B	61	10
Rose Phipps	George Mason B	Rutgers D	62	-5
Elias Lowrey	Lehigh B	Columbia A	62	-5
Alex Emmert	Maryland B	Maryland A	62	-5
Elizabeth Ziberman	Stony Brook	Penn	62	-5
Sidarth Erat	MIT A	Brandeis Mozart	62	10
James Haddix	Washington State	British Columbia A	62	-5
Olivia Ding	Texas	Washington Chum	62	10
Anya Srinivasan	Washington Atlantic	Alberta B	62	-5
Alan Fan	Washington Steelhead	Washington Pink	62	-5
Yasmin Campbell	Cambridge B	Cardiff	62	10
Alex Mayernick	Lehigh A	Princeton	67	-5
Ayaan Jajodia	Dartmouth B	Boston College A	67	10
Kaushik Jayaprabha	Dartmouth C	Harvard	75	-5
Charles Xin	British Columbia A	Washington State	78	0
Grace Lovitt	Washington Masu	Washington Coho	80	10
Ezra Siegartel	Vassar B	Rutgers C	86	-5
Johnathan Ahdout	Princeton	Lehigh A	91	10
Aarav Vasanthan	Rutgers A	Maryland C	91	0
Simarya Ahuja	Washington Sockeye	Arizona State B	104	10
Matthew Bucek	George Mason A	NYU A	110	10
Alex Wong	Rutgers D	George Mason B	110	10
Andrew Wu	Columbia A	Lehigh B	110	10
Xavier Bornhorst	Maryland A	Maryland B	110	10
Yun Loh	Penn	Stony Brook	110	10
Sam Millenbach	Rowan	George Mason C	110	10
Aryan Malhotra	Rutgers C	Vassar B	110	0
Andrew Park	Harvard	Dartmouth C	110	10
Christopher Bradley	Southern Connecticut State University A	Tufts C	110	10
Nico Miller	Brown B	Williams B	110	10
Luke Simon	Alberta B	Washington Atlantic	110	10
Sruti Banerjee	Washington Chinook	Boise State	110	10
Aaron Bates	Washington Pink	Washington Steelhead	110	10
Harry Sexton	Edinburgh A	Sheffield B	110	0

Summary

Tournament	Edition	TUH	Conv. %	Neg %	Average Buzz
UK (North)	UK	1	0%	100%
UK (South)	UK	1	100%	0%	62.00
Eastern Canada (2)	US	1	100%	0%	55.00
Upper Mid-Atlantic	US	12	83%	75%	92.70
Midwest	US	1	100%	0%	49.00
Northeast	US	12	92%	33%	72.09
Pacific	US	9	89%	56%	87.25
Southeast	US	1	100%	0%	37.00
Upstate NY	US	1	100%	0%	60.00