4241573
Descrição
FlashCards por muon neutrino, atualizado more than 1 year ago
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Criado por muon neutrino
quase 11 anos atrás
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| Questão | Responda |
| Name 8 of the major Biomes | Tundra; Taiga; Grasslands; Deciduous forest; Desert; Savana; Rainforest; Alpine |
| What is 'Temperate'? | Locations between subtropical and subarctic zones. |
| What does 'deciduous' mean? | Trees that shed their leaves during winter. |
| Where are temperate deciduous forests found? | North-west Europe; north-east USA; southern Chile; Tasmania; South Island of New Zealand; east Asia |
| Name three species of plant found in the following layers of TDW: 1) Canopy layer 2) Shrub layer 3) Ground layer | 1) Oak, beech, elm 2) Hazel, ash, holly 3) Grass, bracken, bluebells |
| What are the features of the soil in a TDW? | Rich and fertile brown soil. Annual leaf fall enriches soil with organic matter. Soil organisms (e.g. earthworms) mix materials together, preventing the formation of distinct horizons between the layers. |
| Describe the pattern of rainfall and temperature in a TDW. | Rainfall distributed evenly throughout the year. Summers are warmer but not hot or dry, and winters aren't too cold. |
| State 4 ways in which Wytham Woods is used. | 1) Ecological research 2) Wildlife conservation 3) Wood production 4) Recreational/educational visits |
| What are some of the benefits of coppicing? | Doesn't kill the tree (trees can be coppiced many times); gives people wood to use; increases biodiversity by allowing light to flood the woodland floor. |
| How often are the following trees coppiced? 1) Hazel 2) Ash | 1) Every 8-12 years 2) Every 20-25 years |
| What research is done at Wytham Woods? | Research on: Biodiversity (ecosystems) Climate change Fox populations Mapping of varying tree heights |
| Describe one way in which climate change is studied at Wytham Woods. | Species like the Footman moth are key indicators of climate change. There is a correlation between an increase in temperature and an increase in Footman moths. |
| Name some adaptations in Wytham | 1) Abscission (leaf shedding) 2) Thick bark to protect against frost 3) Bluebells flower before the dominant oaks do to take advantage of available sunlight 4) Broad leaves to maximise rate of photosynthesis |
| How did Wytham deal with the grazing pressure caused by deer? | They built 11.2 km of internal fencing to protect key conservation sites. |
| How did Wytham respond to the grey squirrel damaging trees by bark stripping? | Squirrel numbers were controlled with specially designed hoppers being erected containing Warfarin treated grain. |
| How big is Wytham Woods? How many visitors each year? How many species of animal recorded there? | 390 ha of protected woodland 20,000 visitors/year 3,800 species of animal |
| What was the cause and impact of acid rain at Wytham woods? | Cause: Pollution from Didcot power station Effect: Calcium content of vegetation, therefore snails' shells, therefore egg shells. |
| What were the effects of the introduction of the rabbit disease myxamatosis? | Took over 30 years for rabbit population to re-establish itself; stoats (a rabbit predator) declined as the rabbits did; and birches flourished once unchecked by the rabbits. |
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