EBIO 1220 Lecture Notes - Lecture 36: Evapotranspiration, Cyclone Debbie, Nutrient Pollution

• School: CU-Boulder
• Department: Ecology & Evolutionary Biology
• Course: EBIO 1220
• Professor: Melbourne

Document Summary

Study guides posted - the last will be posted today. Course survey questionnaire for extra credit - link on d2l. Content is ecology online (i. e. last 4 weeks) They exist in a very narrow range of temperatures. Consequences of global warming and the interactions of the temperature with whole ecosystems. Millions of species supported by coral reefs. Coral expels zooxanthellae due to temperature stress. Relatio(cid:374)ship (cid:271)et(cid:449)ee(cid:374) algae a(cid:374)d (cid:272)oral if (cid:449)ater gets too (cid:449)ar(cid:373), the part of the algae that does photosynthesis gets overwhelmed with too much sunlight. El nino events drive extreme high global temperatures. Assume coral and adapted to local water temperature. Niche upper: mean temperature of the warmest month (twm) How far out of niche = t observed - t (cid:449)ar(cid:373) (cid:894)(cid:862)hotspot(cid:863)(cid:895) Using the niche to predict coral bleaching: Coral can regain zooxanthellae but if water stays warm for too long it will starve and die. Bleaching is a recent phenomenon due to ocean warming.