Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
|
What would Ireland naturally be dominated by? |
Oak woodland |
|
|
What percentage of Northern Ireland are covered by ancient remains of woodlands? |
0.1% |
|
|
What has reduced the human impact at Breen Wood? |
The harsh environment |
|
|
What makes the environment at Breen Wood harsh? |
Narrow valleys
Acidic soil Harsh weather |
|
|
What type of oak trees are in Breen Wood? |
Ancient sessile oak |
|
|
What has Breen Wood been designated as? |
A SAC - Special Area of Conservation |
|
|
How large is the site? |
36 hectare |
|
|
What fraction of the area is wooded? |
2/3 |
|
|
How far above sea level does Breen Wood lie? |
130 - 190m |
|
|
What is the level of rainfall/year? |
1,600mm |
|
|
What is the mean temperature in January? |
4c |
|
|
What is the mean temperature in July? |
15c |
|
|
What prevents trees from taking up water needed? |
Cold soil conditions |
|
|
How have deciduous trees adapted? |
They shed leaves in autumn to reduce transpiration |
|
|
What is the underlying rock? |
Basalt |
|
|
How was the underlying rock formed? |
Volcanic outpourings 50 million years ago |
|
|
Why does the basalt make the soil unsuitable? |
It causes a pH of 4.5 which is acidic |
|
|
How does rainfall affect the soil? |
It leaches nutrients meaning the soil is always low in nutrients |
|
|
What does the leaching produce? |
A podsol |
|
|
How is the height of trees affected? |
They have only grown to half the height they should have |
|
|
What other tree species is common aside from oak? |
Downy birch |
|
|
What is the shrub layer composed of? |
Rowan
Hazel Holly |
|
|
What is the field layer composed of? |
Bilberry Bramble Fern |
|
|
What covers the soil surface? |
Wood-rush
Wood-sorrel Mosses Ferns |
|
|
Where is fungi common? |
Fallen tree trunks
|
|
|
What covers dead and living trees? |
Mosses Lichens Ferns |
|
|
How many species of butterfly are there? |
14 |
|
|
What are the two examples of butterfly species?
|
Orange Tip Speckled Wood |
|
|
What squirrel is associated with oak woods? |
Red squirrel |
|
|
What species threatens the red squirrel? |
Grey squirrel |
|
|
What birds are found here? |
Goldcrest Blue and Coal tits Sparrow hawk Buzzard |
|
|
What mammals are found on the gorund? |
Badger Stoat Fox |
|
|
What do badgers consume? |
Earthworms Small birds Fruit Nuts Roots of bulb plants |
|
|
What do the foxes and stoats eat? |
Rodents Birds Eggs |
|
|
Food chain involving caterpillars |
Oak leaf -> Caterpilla -> Blue tit |
|
|
Food chain involving beetles |
Oak bark -> Beetle -> Goldcrest |
|
|
Why may litter take take years to fully decompose? |
There are no earthworms |
