Hamback 3, elisabeth weingartner 3, claus rasmussen 4, jeroen reneerkens 5,6, niels m. I would measure the concentration of ddt in animals at or near the top of the food chain. Students will learn about the arctic food web and will construct their own food web. The arctic food web ebook pdf is a lesson that teaches students about the tundra biome and the animals that live there. Climate change alters the structure of arctic marine food. Then students watch a video about plankton and why they are so important. Its biomagnification because they are eating animals with chemicals in them and gaining more and more toxins. The arrows show the movement of energy through the food chain. Files are available under licenses specified on their description page. Due the resulting limited food supply, the expected lower trophic complexity in arctic waters. Ask a biologist, arctic, ecosystem, plankton, brine, channels created date.
Topological properties of boreal and arctic food webs of the barents sea. List 2 ways humans could impact and disrupt the flow of energy in this arctic food web. This lesson is on the food web of the arctic ocean. The population of hawks would stay the stay the same. Acoustic zooplankton fish profiler food web study of. Climate change is having a rapid impact on the arctic food web on land and on the ice. The predators of the low arctic, represent ing the upper levels of the tundra food web, include mammals and birds of prey. The arctic food web ebook pdf by the common core and more. Arctic smorgasbord activity arctic food web cards photo.
Sandra zicus algae convert solar energy into chemical energy. Even though lions dont eat grass, they wouldnt last long if there wasnt any grass because then the zebras wouldnt have anything to eat. If there was a toxic chemical entering my food web, it would affect my animal arctic fox because it would eat the primary consumers who ate the producers and that is them all taking place in biomagnification. Our study investigated these food web dynamics in shallow, low arctic ponds in the kangerlussuaq area, west greenland, spanning an almost tenfold broad doc gradient 6. There is one food chain, one word art sign and one background scene for each habitat. Can roughlegged buzzards cope with changing small rodent communities. Lipids and stable isotopes in marine food webs in west.
Wildlife and global warming navigating the arctic meltdown. The hawk is because it is at the top of the food chain. Its most common prey is the ringed seal and the bearded seal. Benthos as the basis for arctic lake food webs springerlink. The polar bear is at the top of the arctic food chain. Players must position the names of producers and consumers in the correct places in a diagram. The arctic ii food web contains four poleward moving fish. Ask a biologist arctic ecosystem coloring page activity author. While poorly studied to date, arctic food webs are commonly assumed to be simple in structure, with few links per species. An arctic food web includes the following organisms. We compared food webs from 25 subregions in the barents sea and. In this class you have read nonfiction articles on the arctic food web, and you have been exposed to a variety of writings for different levels of understanding. Pdf the food pathway in the pelagic marine ecosystem originates in phytoplankton whose organic constituents are ingested and transformed. However, polar bears are not too fussy when it comes to eating and will take advantage of other available prey when presented with the opportunity.
Book on arctic food traditions named best cookbook of the year 2018 a landmark book written by 50 young indigenous authors about how to eat raw reindeer, preserve its meat, and other arctic food traditions has been named the best book of the year at the prestigious gourmand world cookbook awards. Food web study of keystone arctic marine species for addional informaon, please visit. Modeling inverted biomass pyramids and refuges in ecosystems pdf. Concentrations of perfluorooctane sulfonic acid pfos, perfluorooctansulfoamide pfosa, and c7. Perfluoroalkyl contaminants in an arctic marine food web. With less sea ice, phytoplankton growing near the surface get. This provides details about plankton being at the bottom of the food chain and their link to food supplies, oxygen supplies and fossil fuels. This is a collection of 14 food chains in different habitats. In the arctic, there are several food chains that crisscross to make a food web, starting with the sun, then producers like phytoplankton in the sea and grasses and lichens on land. All structured data from the file and property namespaces is available under the creative commons cc0 license.
The arctic is home to the polar bear, caribou, musk oxen, walrus, the beluga and bowhead whales. Arctic fox reindeer arctic hare lemming musk ox lichen grass wildflower sun 1 list the producers, primary onsumers, secondary onsumers and tertiary onsumers. For example, in the food chain shown below, the small fish silverside gets its energy by eating the plankton and the large fish bluefish gets its energy by eating the small fish. To reinforce and extend the concept of interdependence and food chains, the children could use the internet to find out about food webs. Links higher up in the food chain rely on the lower links.
It is also a reminder of our privilege and responsibility to preserve the environment on which these remarkable animals depend. Antarctica food chains and food webs a simple antarctic food chain is the secret to the success of the baleen whales keep the chain short and transfer as much energy as possible as efficiently as possible. How food webs are structured has major implications for their stability and dynamics. Perhaps one of the most famous arctic mammals is the polar bear, whose range lies primarily within the arctic circle. These form an important food supply for larger zooplankton species, which in turn feed birds, fish and some mammals. We used a multiple element carbon, nitrogen, and hydrogen stable isotope approach to examine theproportionalcontribution ofdifferentsourcestoaquatic consumersinninearctic ponds that spanned a broad gradient of doc 6. A sun, rain clouds and arrows are included in this bundle.
Food web scenario arc c the following paragraph describes a food web. Climate change effects on arctic ecosystems and species climate. Students can then create a predatorprey minidrama, and present their creation to the class. Watching one of these animals in gates of the arctic national park is a chance to experience both the ancient ice age world and the enduring wildness of modern alaska. Tiny animals, including crustaceans, feed on phytoplankton.
Lesson 7 a quick introduction to food chains followed by expanding it to food webs. We would like to show you a description here but the site wont allow us. Copepods are eaten by arc c char, amphipods, humpback whales, and arc c cod. An example of an animal that is negatively affected by climate change is the polar bear. Arctic food web labelled and coloured to show the number of degrees of separation of the animals from phytoplankton. Polar bears eat seals usually ringed and bearded seals. Book on arctic food traditions named best cookbook of the. In the arc c ocean, photosynthe c pro sts known as phytoplankton form the base of a food web. Alternatively, have students create a food web for local species or a species found on their schoolyard. To better understand the bioaccumulation behavior of perfluoroalkyl contaminants pfcs, we conducted a comparative analysis of pfcs and lipophilic organohalogens in a canadian arctic marine food web.
Food web in any ecosystem there are many food chains and, generally, most. These larger mammals typically feed on smaller animals such as lemmings, voles, seal pups, fish, and birds. Resilience as the arctic heats up, whats in store for its food webs. Each of the following changes could upset the arctic food web and could have cascading effects. The structure and function of the marine food web strongly regulate the cycling of organic matter derived from primary production by phytoplankton and ice algae in arctic shelf seas. Look into the effects global warming is having on arctic food chains and what the children can do to stop global warming.
Both arctic and antarctic pelagic food webs have characteristic energy flows controlled largely by a few key. Polar bears are the top of the arctic s landbased food chain. In this lesson, well go over what a food web is and what type of organisms live in the arctic ocean. Exposing the structure of an arctic food web helena k. A remote norwegian fjord has shown resilienceup to a point. With less sea ice, phytoplankton growing near the surface get more sunlight, potentially boosting their growth rates. The lessons can also be combined into a polar challenge day.
Compared to terrestrial environments, marine environments have biomass pyramids which are. Stable isotope food web analyses of two arctic lakes ne14 and i minus in the toolik lake region of alaska indicate that benthos are the primary source of. Both copepods and humpback whales ac vely feed on phytoplankton. Arctic ponds close to the arctic circle kangerlussuaq, greenland, including its role in food web dynamics. Pdf trophic relationships in the pelagic, arctic food web.
Whales are the largest animals ever to have lived, larger even than the largest dinosaurs. C14 perfluorocarboxylic acids pfcas ranged between 0. Arctic food web pond food web consumers are living things that need producers to be their food animals and people producers living things which take the non living matter from the environment plants decomposers living things which feed off of dead plants and animals bacteria, fungi. Arctic animals and climates for children freeschool duration. Alternatively, lower doc waters should have higher pp, lower bp, and a predominantly autochthonousbased food web. The lessons progress to cover varied topics and skills needed for a science research expedition in the polar regions. While poorly studied to date, arctic food webs are commonly assumed to be simple. Designed for the arctic gates of the arctic national.
Lipids and stable isotopes in marine food webs in west greenland. Build a food weba complex model that shows how various food chains in an ecosystem are connectedusing this interactive game adapted from the bigelow laboratory for ocean sciences. Grasp the complex linkage between the seaice extent to the arctic food web and human activities download tabular and image data related to sea ice extent and temperature manipulate image data with digital image processing tools animate a stack of images plot tabular data as graphs and examine trends to make predictions. In your biology class, you have learned vocabulary for and the process of the arctic food web. Information from its description page there is shown below. Copepods and other invertebrates animals without a backbone feed on microscopic algae. Themes include arctic food webs, training like an explorer, expedition food, insulation and clothing, the impacts of melting ice and conducting a press conference. Article pdf available in global change biology 2511 august 2019 with 192 reads. Exposing the structure of an arctic food web university of helsinki.