Biomes Biology Capital H. S.

Limiting Factors Prevent population from reaching biotic potential Types –Density dependent –Density independent

Limiting Factors Density dependent Effect becomes more intense with increased density Examples –Parasites & diseases –Competition for resources –Toxic effect of waste products –Predation

Limiting Factors Density independent Occur independently of density Examples: –Natural disasters –Climate extremes

Biomes Large group of ecosystems that share the same type of climax community. Based on climate: –Light –Water –Temperature

Types of Biomes Terrestrial (land) Aquatic (water)

%20Tropical%20rainforest2%201_b.jpg Which Biome is it?

Tropical Rainforest Tall trees High temperature Heavy rainfall

Which Biome is it?

Desert Cactus/succulents Hot days, cold nights Hot summers Little rain

Which Biome is it?

Which Biome is it? Savannas –Tropical –Scattered trees –High temperature –Less rainfall than tropical rain forest

Grasslands Temperate –Grasses –Seasonal droughts –Occasional fires –Lower temperature & less rainfall than savannas

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Temperate Deciduous Forest Deciduous trees Oak, maple Warm summers Cold winters Moderate rainfall

Which Biome is it?

Taiga Coniferous forests Pines & firs Cold winters Warm to cool summers Heavy snowfall Moderate rainfall

Which Biome is it?

Tundra Grasses & sedges Very cold winters Permafrost High winds Little rain

Which Biome is it?

Marine Biome Adaptations to: –Light –Temperature –Pressure –Salt –Tides

Which Biome is it?

Freshwater Biome Lakes, ponds, rivers, etc. Adaptations to: –Light –Temperature –Moving water

Which Biome is it?

Estuary Where the river meets the sea Most productive biome Adaptations to: –Fluctuating salt levels –Tidal influence