The density of sea otters in Glacier Bay as of 2012 (9.0 otters/km 2) is 3 times the most recent estimated average for southern Southeast Alaska (2.9 otters/km 2); however, the average density for the rest of northern Southeast Alaska (1.1 otters/km 2) is considerably lower than that of southern Southeast Alaska (Fig. Science. Sea otters almost . 3; Table S1). Sea otter numbers have declined in southwestern Alaska over the past 20 years. Ocean ecosystems are impacted by abiotic factors in ways that may be different from terrestrial ecosystems. Carrying Capacity Mini-Lab - AP Environmental Science Labs Start studying CARRYING CAPACITY LAB. Latest answer posted May 24, 2016 at 7:02:58 PM Limiting factors . Biotic. The interrelated abiotic and biotic factors in an ecosystem combine to form a biome. Limit size when the . Carrying Capacity Orca/Killer Whale (Orcinus Orca)-One of the most efficient hunters in the Arctic Ocean, these organisms are the apex predators in their ecosystem, lacking natural predators in their habitat. These predators hunt in pods, drastically improving their effectiveness. capacity of an environment for a species. Density- Dependent Factors. Irrigation can change a desert into a lush oasis because it increases the carrying capacity of the desert (Figure 5). Biotic factors include plants, animals, fungi, algae, and bacteria. Abiotic factors are the nonliving elements, like air, water, soil and temperature. 13 Biomass and energy transfer at the lowest trophic level determines the carrying capacity of the ecosystem. E.g. ... Ex- Sea otters eat large amounts of sea urchins, which eat kelp. 2.Abiotic factors cause changes in biotic factors in a ecosystem ... Sea Otter Beaver HUMAN IMPACT A Sad True Story ... down, as we get closer to CARRYING CAPACITY. Population. when/how reproduces, food, way obtains food. eliminated. Biotic Factors are factors in an organisms habitat that interact with the organism. carrying capacity. name 5 or more biotic and abiotic factors necessary for aquatic Ecosystem. 3 Educator answers. Abiotic factors include sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability. Once containing more than half of the world’s sea otters, this population segment, which ranges from Kodiak Island through the western Aleutian Islands, has undergone an overall population decline of at least 55–67 percent since the mid-1980s. the . Th e carrying capacity can be altered through natural or human activity when resources are removed from or added to the ecosystem. Biotic factors are all the living elements of the ecosystem, including the plants, animals, fungi, protists and bacteria. Limiting factors are either biotic or abiotic environmental factors that ... 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