You are in free guest mode.
Timed Practice
Revision List
Attempt History
Progress Tracking
Create a free account to unlock these tools
Practice Listening: Multiple Choice, Multiple Answers
ID: #44156
Long
Calcification rates
Transcript:
We've seen macro populations exploding as they move into the Icelandic waters. Catch has gone up about 70 fold over four years, but this has brought a whole lot of user conflict into the fishery and then more locally, we've seen one of our more. The stellar examples which I'll raise again in a minute is the invading urchins into Southeast Australia, sort of Tasmanian waters eating all the kelp which is home to a lot of things, including many recreationally important species. So, that's a few examples, but of course scientists have tried to look more broadly and more objectively. Is there global patterns? And this is 1 particular study that's done a very good job of that looking at all sorts of responses in biota, things that you might expect animals to do in response to climate change. And these are changes in their distribution phenology. Which is the change in the timing of the reproduction changes in abundance, community structure, calcification rates or other demographic rates like mortality and growth rates? Looked across a whole range of biota globally from a bunch of different studies and got about 1700 different responses and over 80% of them are consistent. The responses are consistent with what you'd expect. From a climate change, if climate change is the driver, one of the really important points that came out of this study was that the range of expansion in marine systems is about 10 times faster than you see in terrestrial systems. Part of the reason is because marine organisms tend to occupy the full range of their thermal habitat, which is not typically seen in terrestrial. System. So, when there is a change, it often necessitates a very rapid move.
Based on the audio, which two factors have been affected by the climate change-induced movement of marine organisms?
* Click on the correct answers
Result:
With a free account:
Retry and compare every attempt.
Saving...