Abiotic and Biotic Factors of Biomes

Tropical Rain Forest

Abiotic: warm and wet all year long. Thin and nutrient poor soil

Biotic: Animals are active year round. Plants have large leaves to capture as much sunlight as possible and stable roots

Tropical Dry Forest

Abiotic: warm all year long. Wet-dry seasons alternate. Rich soil

Biotic: Leaves shed and are waxy to prevent water loss. Many animals migrate when there is a lack of water

Tropical Grassland/Savanna/Scrubland

Abiotic: warm with seasonal rainfall. Soil is compact and there are frequent fires from lightning

Biotic: Plants have waxy leaves and seasonal leaf loss. Many animals migrate during dry seasons

Desert

Abiotic: low precipitation with temperatures that flucuate drastically. Poor soil

Biotic: Small plant leaves. Animals get their water from the food they eat. Animals are nocturnal to regulate body heat and temperature

Temperate Grassland

Abiotic: Warm summers and cold winters. Moderate precipitation with fertile soil great for agriculture and occasional fires.

Biotic: Fire and grazing resistant plants. Small animals camouflage and burrow as protection because there are not many other places to hide.

Temperate Woodland and Shrubland

Abiotic: warm and dry summers. cool and moist winters. poor soil with periodic fires.

Biotic: plants adapted to droughts and fires with waxy leaves. Animals have variable diets

Temperate Forest

Abiotic: Cold winters and warm summers. year round precipitation. Fertile soil

Biotic: Some animals hibernate and migrate during the winter. Deciduous trees

Northwestern Coniferous Forest

Abiotic: mild temperatures with a lot of precipitation during the fall, winter and spring. Summers are cool and dry. Rocky and acidic soils

Biotic: Many adaptations for plants to get sunlight. Animals are browsers; they eat various things

Boreal Forest/Taiga

Abiotic: long and cold winters. mild summers. moderate precipitation. poor and acidic soils

Biotic: dark green conifers. animals have extra insulation or migrate during winters

Tundra

Abiotic: strong wind, low precipitation. short, soggy summers and dark winters. permafrost: frozen subsoil.

Biotic: small plants. MANY animals migrate during winters and adapt to have heat-saving traits.

Polar Regions

**NOTE this is for "everything else"

Mountain ranges and polar ice caps