Arctic food web an interactive ecology lesson ecology. Producers are highlighted in green, primary consumers in yellow, and secondary consumers in red. Please practice handwashing and social distancing, and check out our resources for adapting to these times. The biggest human impact on the canadian arctic is global warming, both the glaciers and the ice sheets are melting, and the animals are losing habitats. A decrease in subsistence production and consumption of country food and concomitant increase in imported and prepared food has brought increased health risks. All elements of the marine food webs, to the extent that they. Apr, 2015 arctic tundra ecosystem food web diagram landing ecosystems food chain food chain of the arctic tundra food. An arctic food web includes the following organisms. Now study the arctic food web illustration below online or by printing out the high resolution pdf. Searching for the origin of life across the universe potential life on other planetary documentary touch your heart 4,106 watching live now. Producers in the arctic are mostly small shrubs and lichen, like. Arctic smorgasbord activity arctic food web cards photo. Sandra zicus algae convert solar energy into chemical energy. Alternatively, have students create a food web for local species or a species found on their schoolyard.
This arctic food chain lesson plan is suitable for 3rd 6th grade. Hexachlorocyclohexane hch isomers and chiral signatures. If one part of the food web becomes extinct, the entire web may be affected, causing drastic consequences. It is a graphical description of feeding relationships among species in an ecological community. In the arc c ocean, photosynthe c pro sts known as phytoplankton form the base of a food web. Print and fill out the arctic food web trophic level data sheet pdf. Pdf climate variability and possible effects on arctic food chains. As it becomes easier for some species to survive and harder for others, an entire food web could collapse or be reshaped. This provides details about plankton being at the bottom of the food chain and their link to food supplies, oxygen supplies and fossil fuels. Trophic magnification of polychlorinated biphenyls and.
Some teachers have used this same lesson plan for an entire week. Sep 29, 2014 we all know that students love any excuse to talk and move about the classroom being the social creatures they are. Pcb in a riverine food web were lower than those in marine and lake food webs walters et al. Lemmings they not only eat all 5 producers listed including dyra, which are eaten by no other listed consumer, they are prey for four different species. Cookies are used on this website to ensure the stability and security of the website. Arctic foods, founded in 1957, promises you quality meat products second to none. Polar bears prefer to eat ringed and bearded seals, but will also eat arctic fox, walrus and beluga whales. A food web is different individual food chains that all from the same ecosystem connected together to show the travel of energy through an ecosystem. Arctic food chain lesson plan for 3rd 6th grade lesson. From an applied perspective, our description of an arctic web suggests new avenues for understanding how arctic food webs are built and function and. Students can then create a predatorprey minidrama, and present their creation to the class. Disappearing zooplankton could collapse arctic food chain. Contaminant dynamics in arctic marine food webs may be impacted by current climateinduced food web changes including increases in. While poorly studied to date, arctic food webs are commonly.
Pdf the large oscillations of abiotic factors in the arctic is critical in structuring. Note the different species and where they fit into the food web trophic levels decribed above. Muir university of new brunswick, biology department and the canadian rivers institute, 100 tucker park rd, saint john, new. To remove them from the ecosystem would have a devastating effect on the environment. Hunting and fishing was harder during the winter months because of the thick ice and snow that blanketed the arctic, but the inuit were still able to find food. The top predators in the arctic food web are the orca whale and the polar bear. Gracie ankcorn leopard seal harp seal 22,220 kcals polar bear krill snowy owl caribou cotton grass phytoplankton arctic cod arctic fox arctic hare arctic wolf arctic willow arctic azalea orca polar bear caribou moss lichen lemmings apex predator key.
This is a food web i created for the arctic tundra. As the arctic oceans spring seaice cover shrinks, microscopic zooplankton are declining with serious ramifications for the regions food chain. Polar bears prefer seals, but will also eat fish, baby. Lesson 7 antarctic and arctic food webs and the global. Further information on the use of cookies and on the possibility of objecting to the use of cookies optout can be found in the data protection. When food chains connect or overlap, it is called a food web. Exposing the structure of an arctic food web university of helsinki.
Acmp 20062008 uaf geophysical institute b3 a coastal arctic food web teachers note. Enantiomerspecific biomagnification ofahexachlorocyclohexane and selected chiral chlordanerelated compounds within an arctic marine food web paul f. There is a large difference in size between male and female polar bears with. Objectives on successful completion of this lesson, students will be able to. Even creatures living many metres below the arctic oceans surface rely on algae that grow in sea ice and so, like those living near the surface, may feel the. As permafrost and glaciers melt, the freshwater is discharged into the oceans. Exposing the structure of an arctic food web helena k. The effect that climate change could have on arctic food webs is dramatic. Traditional food production and food economies have changed drastically as a result of social, economic, and political influences. But neither are country foods without risk, with impacts of contamination, climate, and cultural change. Trophic transfer of contaminants in a changing arctic marine food. A class discussion on interdependence and the different roles plants and animals play in ecosystems provides students with the knowledge to complete a worksheet asking them to create food chains involving a variety of arctic life. Pbde congeners bde 47 with tmf 1 were limited, although 7 pbde congeners had tmfs ranging from 1.
Polar bears are the top of the arctic s landbased food chain. Perhaps one of the most famous arctic mammals is the polar bear, whose range lies primarily within the arctic circle. Both copepods and humpback whales ac vely feed on phytoplankton. These subsidies likely enter food webs via heterotrophic bacterial and. Thus, our findings call for similar explorations of link structure across multiple guilds in both arctic and other webs. In addition, cookies also from third parties are used for marketing purposes and to improve userfriendliness. These larger mammals typically feed on smaller animals such as lemmings, voles, seal pups, fish, and birds. Example of a predator attack for example, student a an arctic fox says i want to eat student b. Explore the food chains that support arctic ecosystems. Global warming alters arctic food chain, scientists say.
I hav a project and i need 10 animals i already have my 10 animals which is a. Food web structure of a coastal arctic marine ecosystem. Foodweb structure is a key ecosystem characteristic, describing energy flow, ecological interactions, and strength of linkages within the community peterson and fry, 1987. Pdf the arctic tundra food web in a changing climate and the role. The afn encircles the large body of the foxe basin in nunavut, canada, home to a richly diverse wildlife, along the coast of baffin island and some 30,000 nunavummiut. As you can see by the chart above, if the polar bear is taken out of the food web the arctic fox would thrive. Food web scenario arc c the following paragraph describes a food web. Then students watch a video about plankton and why they are so important.
Then the pica, ox,lemming, and the carbue would become close to extinct. Polar bears eat seals usually ringed and bearded seals. Arctic food web free lessons teacher created resources. Although the polar bear lives on land, its an avid swimmer. So, why not use it to your advantage and find science activities that get them up and working together. The arctic food network afn addresses an urgent need for a snowmobile accessed regional network of arctic farms, freezers, and camp hubs. We would like to show you a description here but the site wont allow us. Lesson grade instructions 1 grades 6 overview students construct a model of a coastal arctic food web, study the flow of energy, and use the model to examine how climate change is affecting the arctic ecosystem. This paper examines hch isomer concentrations in the arctic marine food web of the now and compares the food web transfer of individual isomers and the utility of using efs of rhch to. Light absorption in arctic sea ice chlorophyll and black. A food web shows a more accurate picture as in reality it is rare for anything to just eat one kind of food.
Gracie ankcorn leopard seal harp seal 22,220 kcals polar bear krill snowy owl caribou cotton grass phytoplankton arctic cod arctic fox arctic hare arctic wolf arctic willow arctic azalea orca polar bear caribou moss lichen. Lesson 7 a quick introduction to food chains followed by expanding it to food webs. Canadian arctic food web bruce qins science 7 portfolio. The pelagic microbial food webs in the arctic ocean are commonly. The organisms on the very bottom are the producers who convert sunlight into usable energy through photosynthesis. Arctic sea ice extent has declined continuously for the past decade, owing partially to light absorption by black carbon bc and other impurities deposited on snow and the underlying. When the sea ice begins to melt every spring this is the signal for life to explode into action. The canada arctic is a region that covers 40% of the canadian landmass, and the population of 100,000 canadian habit there. The increase of freshwater to the bering sea is also caused by inflowfrom rivers such as the yukon river. Microbial sample processing, dna extraction, and polymerase chain reaction amplification.
It is not always the objective to recover one particular compound in pure form from a raw material, i. The annual production of algae, the base of the food web, increased an estimated 47 percent between 1997 and 2015, and the arctic ocean is greening up earlier each year. P4686 and our customer service department can be reached toll free at 800. As the arctic heats up, whats in store for its food webs. Muir university of guelph, department of environmental biology, guelph, ontario n1g2w1, canada. Food web functions and interactions during spring and. Strong seasonality in arctic estuarine microbial food webs. Arctic food security the university of alberta press. The importance of the diatom calanus food chain in the arctic pelagic food has. Hamback 3, elisabeth weingartner3, claus rasmussen4, jeroen reneerkens5,6, niels m. Exposing the structure of an arctic food web article pdf available in ecology and evolution 517. Copepods are eaten by arc c char, amphipods, humpback whales, and arc c cod. The plant life would then become an invasive species. Polar bears are the top of the arctics landbased food chain.
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