1
00:00:10,920 --> 00:00:16,350
This course is the field course in BIO250 Palaeoecology,

2
00:00:16,350 --> 00:00:18,480
that we teach in the autumn semester in Bergen.

3
00:00:19,110 --> 00:00:27,780
And the reason for going out here to Lygra is to actually do the fieldwork ourselves, to get a feeling of how fieldwork is done

4
00:00:27,810 --> 00:00:31,260
what you have to think about, what you have to plan, what you need to bring,

5
00:00:31,890 --> 00:00:36,360
and how you should choose your strategy when you have decided on your research question.

6
00:00:45,960 --> 00:00:53,910
We're looking for charcoal layers to see if we can map the historical burning regime over time.

7
00:00:54,210 --> 00:01:00,760
And maybe we're going to take another sample in another area to see if it's different in different locations.

8
00:01:00,780 --> 00:01:06,840
We have to look for the charcoal layer and then also have a look for anything else that we can see.

9
00:01:07,080 --> 00:01:14,639
Maybe evidence of trees if there were trees nearby on the site, because this could have been an old forest site or something.

10
00:01:14,640 --> 00:01:23,250
We don't know yet, but we're going to find out. We will  see how we can use the sediments or the peat in this case

11
00:01:23,250 --> 00:01:29,730
as an archive for past landscape and vegetation changes or any kind of ecosystem change.

12
00:01:34,220 --> 00:01:38,100
And we are going to look at pollen in the sediments

13
00:01:38,400 --> 00:01:42,240
and by doing so we can see how the climate has changed.

14
00:01:42,300 --> 00:01:48,960
and look at the differences before and after humans came and started cultivating the land.

15
00:01:52,450 --> 00:02:00,400
I think they really like to kind of do it themselves and not only be shown on the video or as a demonstration on how you do it.

16
00:02:00,670 --> 00:02:04,140
The russian corer is really hard to push down.

17
00:02:04,950 --> 00:02:08,760
So we had to use a lot of manpower, or woman power.

18
00:02:12,720 --> 00:02:19,530
We're taking cores from different depths, and when we get them up again, we're sort of looking at the different layers.

19
00:02:20,100 --> 00:02:23,490
By doing that, we can say something about the vegetation of the past.

20
00:02:24,000 --> 00:02:29,190
Then we are also doing lab analysis and are looking at pollens and grains.