Question
Sheephead wrasse and spiny lobsters prevent the formation of these ecosystems in Southern California by feeding on their namesake organisms. For 10 points each:
[10m] Name these desert-like ecosystems that form from the destructive grazing of kelp forests by a namesake echinoderm.
ANSWER: sea urchin barrens
[10e] Sea urchin barrens are also prevented by predation of sea urchins by this species in the subfamily Lutrinae whose members wrap themselves in “rafts” of kelp before going to sleep.
ANSWER: sea otters [or Enhydra lutris]
[10h] Filbee-Dexter and Scheibling 2014 argues that sea urchin barrens are characterized by this pattern in which namesake “shifts” triggered by the crossing of ecological thresholds cause an ecosystem to change among static configurations.
ANSWER: alternative stable states [or alternative stable equilibria]
<Munir Siddiqui and David Bass, Biology>
Summary
| 2023 Chicago Open | 08/05/2023 | Y | 1 | 20.00 | 100% | 100% | 0% |
Data
| The Plague (anime)" was redirected to: "Oran High School Host Club | The Catastrophic Implosion of Packet Sub | 10 | 10 | 0 | 20 |