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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 plants. A barn owl’s diet is about 50% voles, 40% mice, 5% rats, and 5% shrews.
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.
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.
One study of 200 pellets from a barn owl found 454 mammal skulls, which included 225 voles, 179 house mice, 20 rats, and 20 shrews. Essential Question How do energy and mass flow through a food web? Activity Objectives 1. Use owl pellets to model a food web. 2. Calculate energy transfer and biomass at each trophic level of a barn owl food web.
4 wrz 2024 · The barn owl’s food web highlights the interconnectedness of species in ecosystems. As nocturnal predators, barn owls rely on small mammals such as voles, mice, and shrews, which in turn feed on seeds, insects, and plant matter.
decomposers in a simulation activity; observing components of the soil food web in the garden; forensically dissecting an owl pellet to re-create a food web and an ecological pyramid from which energy flow can be calculated; and restoring balance to a garden ecosystem by removing non-native species or
Combining owl pellet dissection and a low stakes food/energy web activity allows students to observe and handle tangible evidence of energetics before constructing a more complete picture. It also provides an opportunity for students to incorporate alternative food and nutrient webs into their concept of energy flow through an ecosys-tem.
