coexistence - 2023 BHSU @ Waterloo

Question

Peter Chesson classified mechanisms for creating this situation as either dependent or independent of spatial variation, with the storage effect exemplifying a dependent mechanism. David Tilman postulated that this situation can occur if each participant has a locally minimum value for a quantity denoted R-star. This situation is represented on a phase plane by a stable equilibrium point that is the intersection of two zero-growth isoclines. The unusually large number of different (*) phytoplankton species that are in this situation together is called the “paradox of the plankton.” According to Gregory Gause's law of competitive (10[1])exclusion, this situation cannot occur for two species competing (10[1]-5[1])for the same niche. For 10 points, name this situation in which multiple species survive in the same environment. ■END■ (10[1])

ANSWER: coexistence [prompt on competition by asking “what is the outcome of the competition?”, prompt on descriptive answers like two species surviving in the same place]

<BB>

= Average correct buzz position

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Buzzes

Player	Team	Opponent	Buzz Position	Value
Martin Profant	Parth et al.	Cameron et al.	93	10
Colin Veevers	Neg 5! Playing Quizbowl, Liddy Style	Milan et al.	102	-5
Liam Kusalik	The Vulture's Guide to Buzz	The Passion According to C.H.	102	10
Ian Chow	Milan et al.	Neg 5! Playing Quizbowl, Liddy Style	122	10

Summary


2023 BHSU @ Northwestern	02/25/2023	Y	6	83%	17%	50%	102.20
2023 BHSU @ Maryland	03/11/2023	Y	3	100%	0%	33%	117.67
2023 BHSU @ Berkeley	03/18/2023	Y	3	67%	0%	33%	76.00
2023 BHSU @ Yale	04/08/2023	Y	3	67%	33%	67%	93.50
2023 BHSU Online	04/15/2023	Y	4	50%	50%	50%	43.00
2023 BHSU @ Sheffield	04/15/2023	Y	2	100%	0%	50%	117.00
2023 BHSU @ Waterloo	04/15/2023	Y	3	100%	0%	33%	105.67