Extinction Processes
... dependent variables ~ population size independent variables ~ habitat measures, weather, harvest/take parameters ~ birth, death, and reproductive rates accounts for variation in time and space • model randomly selects a value for each parameter from the range of ...
... dependent variables ~ population size independent variables ~ habitat measures, weather, harvest/take parameters ~ birth, death, and reproductive rates accounts for variation in time and space • model randomly selects a value for each parameter from the range of ...
Food Web
... -Decomposers – usually small bacteria (fungi on land) which break down decaying organic material. -Can also be scavengers, such as crabs and some deep water fish. -They are important in returning nutrients back into ecosystem that would otherwise be lost in the water column. -Zooplankton and filter- ...
... -Decomposers – usually small bacteria (fungi on land) which break down decaying organic material. -Can also be scavengers, such as crabs and some deep water fish. -They are important in returning nutrients back into ecosystem that would otherwise be lost in the water column. -Zooplankton and filter- ...
Intraspecific Competition
... 2) Intraspecific competition – between members of same species 2) Predation 3) Parasitism ...
... 2) Intraspecific competition – between members of same species 2) Predation 3) Parasitism ...
Chapter 12
... indicates that Fungi and Animalia are more closely related than either is to plants Fungi are classified into phyla according to their mode of dispersal of spores Convergent evolution has led to the evolution of similar body shapes and lifestyles (“fungal forms”) among the different ...
... indicates that Fungi and Animalia are more closely related than either is to plants Fungi are classified into phyla according to their mode of dispersal of spores Convergent evolution has led to the evolution of similar body shapes and lifestyles (“fungal forms”) among the different ...
Packet 9 Exam Review Sheet Vocab to know:
... next step in the food chain. As a result, organisms high on the food chain have less energy available to them and must have smaller populations (less energy—less biomass; ecological pyramids) 4. Environmental factors (air, water, light, temperature, pH, food, predators, etc) determine which organism ...
... next step in the food chain. As a result, organisms high on the food chain have less energy available to them and must have smaller populations (less energy—less biomass; ecological pyramids) 4. Environmental factors (air, water, light, temperature, pH, food, predators, etc) determine which organism ...
Biome Test
... 321. In the North Sea, tuna feed on herring and herring feed on sand eels. Cod and seabirds also feed on the eels. Assuming that North Sea fishermen overfish cod and herring to the point that their populations greatly decrease, what is the most likely result on the tuna and seabird populations? ...
... 321. In the North Sea, tuna feed on herring and herring feed on sand eels. Cod and seabirds also feed on the eels. Assuming that North Sea fishermen overfish cod and herring to the point that their populations greatly decrease, what is the most likely result on the tuna and seabird populations? ...
Biodiversity
... – Extinct in North East by 1937 – First use of DDT – 1943 to kill lice in Europe and in US army – Extensive use in nature started ~1955, peaked in 1962 – Bald Eagle population increased during the peak period! ...
... – Extinct in North East by 1937 – First use of DDT – 1943 to kill lice in Europe and in US army – Extensive use in nature started ~1955, peaked in 1962 – Bald Eagle population increased during the peak period! ...
Section 4 part E - East Bridgewater
... Hanson and south through East Bridgewater to Robins Pond. Some of this corridor is already protected by well sites and some Town owned land. However, recent developments are underway along this river. The Matfield River is a major wildlife corridor, particularly since the Salisbury Plain River, Satu ...
... Hanson and south through East Bridgewater to Robins Pond. Some of this corridor is already protected by well sites and some Town owned land. However, recent developments are underway along this river. The Matfield River is a major wildlife corridor, particularly since the Salisbury Plain River, Satu ...
Energy Flow
... • 1970s: sea otter populations healthy and expanding • 1990s: some populations of sea otters were declining • Possibly due to migration rather than mortality • 1993: 800km area in Aleutians surveyed - Sea otter population reduced by 50% ...
... • 1970s: sea otter populations healthy and expanding • 1990s: some populations of sea otters were declining • Possibly due to migration rather than mortality • 1993: 800km area in Aleutians surveyed - Sea otter population reduced by 50% ...
Topic 4 - Human activity affects biological diversity
... These are events such as earthquakes or volcanic eruptions that cause sudden changes in the environment. The last major environmental change was about 1.8 million years ago during the Pleistocene epoch, which is commonly known as the Ice Age. However, most extinctions are not mass extinctions. They ...
... These are events such as earthquakes or volcanic eruptions that cause sudden changes in the environment. The last major environmental change was about 1.8 million years ago during the Pleistocene epoch, which is commonly known as the Ice Age. However, most extinctions are not mass extinctions. They ...
Habitats Tour - Potter Park Zoo
... “home.” Most habitats include four basic components: food, water, shelter and space. You should point out that there many additional living requirements that animals need and these vary from species to species. In other words, Habitat is everything a species needs in its surroundings in order to sur ...
... “home.” Most habitats include four basic components: food, water, shelter and space. You should point out that there many additional living requirements that animals need and these vary from species to species. In other words, Habitat is everything a species needs in its surroundings in order to sur ...
WP5_incofish_Oct 2005_NP
... Examining the role of MPAs for management of large scale shelf fisheries in the context of ecosystem management. ...
... Examining the role of MPAs for management of large scale shelf fisheries in the context of ecosystem management. ...
Intro to Ecology
... Since the industrial revolution of the 1800s the human population has been experiencing exponential growth. ...
... Since the industrial revolution of the 1800s the human population has been experiencing exponential growth. ...
Ecosystem engineering: how the Suez Canal changed the sea
... Seas to form the Suez Canal. This act of engineering created a 7,000 km shortcut in the trade route to India and still presents a vital trade link between Europe and the Middle East. But the channel provides a highway for more than meets the eye. Since its construction, over 400 alien species have s ...
... Seas to form the Suez Canal. This act of engineering created a 7,000 km shortcut in the trade route to India and still presents a vital trade link between Europe and the Middle East. But the channel provides a highway for more than meets the eye. Since its construction, over 400 alien species have s ...
Instructions for Delphi panelists BACKGROUND OF THE DELPHI
... in New Jersey. Many of you participated in the initial status review, and some of that work has led to this more refined list. For each species, please select the status code that best applies to the species in New Jersey. With each selection, also indicate your level of confidence in your assessmen ...
... in New Jersey. Many of you participated in the initial status review, and some of that work has led to this more refined list. For each species, please select the status code that best applies to the species in New Jersey. With each selection, also indicate your level of confidence in your assessmen ...
The Amazon Rainforest
... • A tropical rainforest is an ecosystem that occurs in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn. • High average temperatures • Significant amount of rainfall. ...
... • A tropical rainforest is an ecosystem that occurs in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn. • High average temperatures • Significant amount of rainfall. ...
Ecological Niches and Adaptation
... interacting over a long period of time – Changes in the gene pool of of one species changes the gene pool of another species • Predator-Prey Relationships • Plant defense mechanisms ...
... interacting over a long period of time – Changes in the gene pool of of one species changes the gene pool of another species • Predator-Prey Relationships • Plant defense mechanisms ...
Ecology-Option G - IB BiologyMr. Van Roekel Salem High School
... G.1.1 Outline the factors that affect the distribution of plant species, including temperature, water, light, soil pH, salinity and mineral nutrients. G.1.2 Explain the factors that affect the distribution of animal species, including temperature, water, breeding sites, food supply and territory. G. ...
... G.1.1 Outline the factors that affect the distribution of plant species, including temperature, water, light, soil pH, salinity and mineral nutrients. G.1.2 Explain the factors that affect the distribution of animal species, including temperature, water, breeding sites, food supply and territory. G. ...
Biology 1C Fungi and Ecology Exam (3) Study Guide
... Compare top down and bottom up forcing as factors that drive community structure What is a trophic cascade? Be able to give a specific example of how this dynamic can alter an ecosystem (eg. the killer whales and the wolves) What (specifically) is driving the collapse of the kelp forest ecosystem in ...
... Compare top down and bottom up forcing as factors that drive community structure What is a trophic cascade? Be able to give a specific example of how this dynamic can alter an ecosystem (eg. the killer whales and the wolves) What (specifically) is driving the collapse of the kelp forest ecosystem in ...
Capability Statement Biodiversity Conservation and Natural
... to meet indirect objectives (e.g. environmental conservation). INRM can only successfully take place when it promotes sound multi-sectoral and multi-level collaboration between institutional actors, private sector parties (the industry: agriculture, mining, tourism, fisheries, forestry etc), and civ ...
... to meet indirect objectives (e.g. environmental conservation). INRM can only successfully take place when it promotes sound multi-sectoral and multi-level collaboration between institutional actors, private sector parties (the industry: agriculture, mining, tourism, fisheries, forestry etc), and civ ...
Unit 9 Ecosystems Ch 8 Lessons 1 and 2
... • A habitat provides the things an organism needs to live, grow and reproduce. ...
... • A habitat provides the things an organism needs to live, grow and reproduce. ...
Lower Columbia River ANS Survey
... ballast water, HF – hull fouling, GS – gradual spread from introduction outside basin, AX – accidental introduction (hitchhiking with an intentional release), FS – fisheries or wildlife enhancement by or approved by an agency, RI – release/stocking by an individual, not sanctioned by an agency, REC ...
... ballast water, HF – hull fouling, GS – gradual spread from introduction outside basin, AX – accidental introduction (hitchhiking with an intentional release), FS – fisheries or wildlife enhancement by or approved by an agency, RI – release/stocking by an individual, not sanctioned by an agency, REC ...
Overexploitation
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Sustained overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at a rate that is unsustainable, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used and defined somewhat differently in fisheries, hydrology and natural resource management.Overexploitation can lead to resource destruction, including extinctions. However it is also possible for overexploitation to be sustainable, as discussed below in the section on fisheries. In the context of fishing, the term overfishing can be used instead of overexploitation, as can overgrazing in stock management, overlogging in forest management, overdrafting in aquifer management, and endangered species in species monitoring. Overexploitation is not an activity limited to humans. Introduced predators and herbivores, for example, can overexploit native flora and fauna.