interaction

*Marine biology question* Fully explain what is being conveyed by the following illustration of activities in the Giant Kelp community of the continental shelf.

Match the following definitions or descriptions of community ecology to the most appropriate vocabulary word A model where there is a unidirectional influence from lowe to higher trophic levels A model where predation mainly controls community organization. An event, such as a storm, fire, flood, drought, or human activity, that changes a community by removing organisms from it or altering resource availability. ✓ [Choose ] top-down model disturbance A term which describes most communities as constantly changing after disturbance Occurs in a virtually lifeless area where soil has not yet formed, such as on a new volcanic island or on the rubble left by a retreating glacier Occurs when an existing community has been cleared by a disturbance that leaves the soil intact secondary succession bottom-up model nonequilibrium model primary succession [Choose ] [Choose ] [Choose ] [Choose ] + +

Distinguish between tolerance range and optimal range.

Exit Interactivity: Human Impact on Ecosystems Due 02/08/21 11:59 Human Impact on Ecosystems Over-harvesting / Overfishing U.S. Atlantic Cod Harvest (1970–2016) 55 50 45 Fishing catches have had to increase to feed the 40 35 growing human population. However, overfishing has caused the collapse, or sudden decrease, of multiple fisheries including the cod population off the shores of Newfoundland. The cod population has yet 30 25 20 15 10 5 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 Year Data Source: Office of Science and Technology, National Marine Fisheries Service, National Oceanic and Atmospheric Administration to recover. 2. Based on the graph, in what year did the cod population begin to collapse? 4 of Thousands of metric tons of cod

Indentify how the factors of biotic potential and environmental resistance as well as predation and competition species interactions influence population dynamics (the size and growth of populations) of non-human species as a foundation for understanding environmental problems.

Which statement concerning the oxygen level in the lake can be inferred from the graphs? * Oxygen Content and Fish Population in a Lake Oxygen Sewage waste -Carp Trout Walleye Whitefish 1950 1955 1960 1965 1970 1950 1955 1960 1965 1970 Trout and whitefish require lower oxygen levels than do carp. Carp are less sensitive to oxygen levels than are other fish. The fish in this lake all require the same amount of oxygen for survival. Walleye populations were highest when the oxygen levels were lowest. Amount of Specific Substances Relative Quantity of Fish

describe what is going on this pictures. think of any possible ecological interaction as you can list.

Identify an ecological footprint and perform an analysis on the ecological footprint mentioned

foot oud de wels When top-down control occurs within an intertidal zone along the rocky coastline of the Pacific Ocean, which of the following species controls the abundance of other species, because of its keystone species influence? Mark only one oval. Food webs are typically arranged into trophic levels with which of the following? Mark only one oval. OA) primary producers at the bottom, carnivores in the middle, and herbivores at the 0 0 0 0 top. top. top, A) kelp B) mussels C) barnacles D) starfish E) Spartina grasses top. B) herbivores at the bottom, carnivores in the middle, and primary producers at the C) carnivores at the bottom, herbivores in the middle, and primary producers at the D) primary producers at the bottom, herbivores in the middle, and carnivores at the Removal of sea otters from a Pacific Ocean system results in a massive increase in sea urchins and subsequent loss of kelp beds. This is an example of which of the following? Mark only one oval. A) a trophic…