This video series is turning out to be very useful for me to get into the basics of freshwater/stream ecology.

I hope this is the channel I have been looking for.

Verymuch informative..👍

These videos are great, thanks so much

ouch, is that a patch of japanese knotweed on the lower right of the river? 0:01

So grateful for this amazing series of lectures. Wondering if you may have any ideas if there are similar available for Australia? Thanks so much!

@thomasevans3387

Ай бұрын

Glad they were helpful. These were put together by me for a course, so all you need to do is convince someone in Australia to put their lectures together.

Is 'pool/riffle/run" primarily applicable to lower order streams?

@thomasevans3387

3 жыл бұрын

Pool-riffle-run is an idealized pattern. It happens sometimes, but you should expect it to be violated as often as it is upheld. In small high order streams you may get nothing but riffles and runs, or even just riffles is the gradient is extremely steep.

Thank you so much for putting this up. I wanted to take stream eco at UMD but missed my chance. A question: In stream order, what's the minimum requirement for counting as a stream at all? I grew up near rock creek park. There's loads of little "mini-creeks" - shallow channels, maybe 2 ft diameter and 1 ft deep, feeding into the creek. Are those first order streams? Do we count them if we have evidence they are former irrigation channels?

@thomasevans3387

3 жыл бұрын

Generally the lowest order stream is defined as a place where there is continuous surface water in a normal year of rain. All this exposes had humans need to put things in boxes to understand them, but outside of that exists a wide universe of grey area.