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NOAA Great Lakes Food Web Diagrams direct Author NOAA, Great Lakes Environmental Research Laboratory: Mason, Krause, and Ulanowicz, 2002 - Modifications for Lake Huron, 2009.
Isle Royale National Park is made up of about 400 islands, and is in the northwest portion of Lake Superior. It is about 50 miles (80 km) from Michigan's shore, and 12 miles (19 km) from the Canadian shore. The main island is about 45 miles (72 km) long, and nine miles (14 km) wide at the widest point, with an area of 205 square miles (530 km 2
However, the number of empirical studies on community webs is on the rise and the mathematical treatment of food webs using network theory had identified patterns that are common to all. [1] Scaling laws , for example, predict a relationship between the topology of food web predator-prey linkages and levels of species richness .
Explaining the observed high levels of complexity in ecosystems [1] has been one of the main challenges and motivations for ecological network analysis, since early theory predicted that complexity should lead to instability. [2] Connectance: the proportion of possible links between species that are realized (links/species 2). In food webs, the ...
Saginaw Bay is a bay within Lake Huron located on the eastern side of the U.S. state of Michigan. It forms the space between Michigan's Thumb region and the rest of the Lower Peninsula of Michigan. Saginaw Bay is 1,143 square miles (2,960 km 2) in area. [2] It is located in parts of five Michigan counties: Arenac, Bay, Huron, Iosco, and Tuscola.
A food web is network of food chains, and as such can be represented graphically and analysed using techniques from network theory. [1] [2] Classic food web for grey seals in the Baltic Sea containing several typical marine food chains [3] The fourth trophic level consists of predatory fish, marine mammals and seabirds that consume forage fish.
A food pyramid and a corresponding food web, demonstrating some of the simpler patterns in a food web A graphic representation of energy transfer between trophic layers in an ecosystem Energy flow is the flow of energy through living things within an ecosystem . [ 1 ]
A NOAA schematic of the hydrology of the Great Lakes depicts Lake Michigan–Huron as a single lake with three basins: Lake Michigan, Lake Huron, and Georgian Bay. [4] The connection between Lake Michigan and Lake Huron through the Straits of Mackinac is 5 miles (8 km) wide [11] and 120 feet (37 m) deep. [12]