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1. Using the information in the overview or the owl pellet dissection results, construct a simple food web for a barn owl. Label the trophic levels and type of consumer. Include the sun as the energy source for the plants. See food web above. 2. Based on the data in the overview, a barn owl’s diet is about 50% voles, 40% mice, 5% rats, and 5% ...
This sequence of living things, each depending upon the other for food, is called a food chain and is part of a much more complex food web. What do Barn Owls eat? In the UK Barn Owls hunt in open rough grassland, for small mammals (warm blooded furry animals) mainly Field Voles, Wood Mice, and shrews.
Barn Owls Barn Owl Science Food web 1A www.barnowltrust.org.uk . Barn Owl Science Illustrate a food web 1B www.barnowltrust.org.uk . Title: Science - Food web Author: Staff Created Date: 12/10/2009 2:36:56 PM ...
results, construct a simple food web for a barn owl. Label the trophic levels and class of consumer. Include the sun as the energy source for plants. 2. A barn owl’s diet is about 50% voles, 40% mice, 5% rats, and 5% shrews. Assume the barn owl is regurgitating 2 pellets a day and each pellet contains 4 skulls.
The natural diet of wild Barn Owls in England, Scotland, and Wales, comprises small mammals, mainly Field Voles, Common Shrews and Wood Mice. Even when not swallowed whole, the entire animal is usually eaten.
Owls are predators which prey on rodents, shrews, moles, insects, reptiles and small birds. Since very few predators feed on owls, they hold the top position of the food chain. Owl Pellet Biologists learn about an owl’s diet by examining its pellets that are regurgitated.
Construct a bar graph illustrating the biomass that each prey group represents in the diet of the owl (Units of biomass vs. prey; with % depicted above the bars). Food/Biomass Pyramid:
