The Joliet Junior College Anglers Club Presents…. Catch
... Understanding Ecosystems – what’s in your Local Pond, Lake or River? Bluegill (prey)– the most numerous species in most local retention FP and PD and lakes and ponds. Survive predation via prolific breeding Largemouth Bass (predator) – top of the food chain, by makes up only ~5% of the biomass in m ...
... Understanding Ecosystems – what’s in your Local Pond, Lake or River? Bluegill (prey)– the most numerous species in most local retention FP and PD and lakes and ponds. Survive predation via prolific breeding Largemouth Bass (predator) – top of the food chain, by makes up only ~5% of the biomass in m ...
2008, finat Lecture 14 Human Effects, Aug 04
... ballast tanks with water. Large ships often carry millions of gallons of ballast water. As a ship loads ballast it also loads many organisms. Ballast water is carried from one port to another, where the water may be discharged. ...
... ballast tanks with water. Large ships often carry millions of gallons of ballast water. As a ship loads ballast it also loads many organisms. Ballast water is carried from one port to another, where the water may be discharged. ...
Photosynthesis
... Groups act together to defend or raise alarm Safety in numbers Weaker members have increased survival chance ...
... Groups act together to defend or raise alarm Safety in numbers Weaker members have increased survival chance ...
Document
... _____ 3. Riding a bike not only saves fuel; it can also help prevent a. air pollution. c. soil pollution. b. water pollution. d. overpopulation. _____ 4. When people practice conservation, they use fewer a. muscles. c. natural resources. b. foods. d. habitats. _____ 5. Which of the following is NOT ...
... _____ 3. Riding a bike not only saves fuel; it can also help prevent a. air pollution. c. soil pollution. b. water pollution. d. overpopulation. _____ 4. When people practice conservation, they use fewer a. muscles. c. natural resources. b. foods. d. habitats. _____ 5. Which of the following is NOT ...
Lecture Notes
... M) Signficance of asymmetric competition. How would you design an experiment to determine if competition was asymmetric? ...
... M) Signficance of asymmetric competition. How would you design an experiment to determine if competition was asymmetric? ...
JAR.BOB.6-4 - Marine Conservation Biology Institute
... Fleets target big fish because they yield the highest profits. There is more marketable meat per landed fish. What’s more, big fish tend to have milder flavor and fewer bones per pound than small fish do. Top-of-the-food-chain fish have always been the least numerous; so, overfishing such fish quick ...
... Fleets target big fish because they yield the highest profits. There is more marketable meat per landed fish. What’s more, big fish tend to have milder flavor and fewer bones per pound than small fish do. Top-of-the-food-chain fish have always been the least numerous; so, overfishing such fish quick ...
Ch.18 Notes - Green Local Schools
... environments, look for patterns, & try to explain those patterns ...
... environments, look for patterns, & try to explain those patterns ...
Notes for Ecology unit - Liberty Union High School District
... The only way for water to get back to the atmosphere is through transpiration (plant sweating) When we cut down trees they no longer transpire So water does not get into the air to become rain The area becomes a desert in a very short time period – Really bad in rainforest regions, because the soil ...
... The only way for water to get back to the atmosphere is through transpiration (plant sweating) When we cut down trees they no longer transpire So water does not get into the air to become rain The area becomes a desert in a very short time period – Really bad in rainforest regions, because the soil ...
File
... which will flood the forest with a pond. Eventually the trees will dies, new species of plants and wildlife will arrive to take advantage of the new conditions. Eventually, this forest will become a meadow. The beaver’s NICHE is the role it plays in shaping the environment. But… it is also a main pr ...
... which will flood the forest with a pond. Eventually the trees will dies, new species of plants and wildlife will arrive to take advantage of the new conditions. Eventually, this forest will become a meadow. The beaver’s NICHE is the role it plays in shaping the environment. But… it is also a main pr ...
P: Chapter 55 Study Guide
... 21. Making decision to preserve communities requires an understanding and integration of many factors. Assume you work for the U.S. government and you manage a large national forest. You are told that to maintain the economy in the area, the government has agreed to allow foresters to remove half a ...
... 21. Making decision to preserve communities requires an understanding and integration of many factors. Assume you work for the U.S. government and you manage a large national forest. You are told that to maintain the economy in the area, the government has agreed to allow foresters to remove half a ...
AP Biology - Christian Unified Schools
... 19. What is the biological magnification and how does it relate to health warning given to pregnant women about the consumption of certain fish? ...
... 19. What is the biological magnification and how does it relate to health warning given to pregnant women about the consumption of certain fish? ...
Creating and Restoring Habitat Linkages 25alg-515
... the presence and relevance of local endangered ecological communities. ...
... the presence and relevance of local endangered ecological communities. ...
Keystone Species - the Shape of Life
... Menge et al. 1994, Paine 1996). Eventually a group of ecologists met and expanded Paine’s (1969) original usage of the term, which had focused on species that preferentially consumed and limited other s ...
... Menge et al. 1994, Paine 1996). Eventually a group of ecologists met and expanded Paine’s (1969) original usage of the term, which had focused on species that preferentially consumed and limited other s ...
Dewey Notes 09 Life in the Ocean
... benthic. Bacteria and filter feeders that re-cycle nutrients are perhaps the most important. They are either predators or rely on chemosynthesis. In coastal regions, photosynthetic plants can “anchor” themselves and grow to macroscopic size. This in turn can create a generous habitat for diverse and ...
... benthic. Bacteria and filter feeders that re-cycle nutrients are perhaps the most important. They are either predators or rely on chemosynthesis. In coastal regions, photosynthetic plants can “anchor” themselves and grow to macroscopic size. This in turn can create a generous habitat for diverse and ...
Benefits of Conservation Areas
... atmosphere conservation: Clean air is needed by all organisms on Earth. The atmosphere regulates the Earth's temperature and protects it from harmful radiation. Global warming and ozone depletion threaten all organisms, including humans. ecosystem conservation: maintaining natural functions between ...
... atmosphere conservation: Clean air is needed by all organisms on Earth. The atmosphere regulates the Earth's temperature and protects it from harmful radiation. Global warming and ozone depletion threaten all organisms, including humans. ecosystem conservation: maintaining natural functions between ...
Initiates file download
... sustainable levels of catch of this early life history phase or even how quickly natural mortality declines after settlement. So why were we called together to help set-up a management model for a fishery on early post-settlement larvae conducted only in two tiny island groups in Indonesia with loca ...
... sustainable levels of catch of this early life history phase or even how quickly natural mortality declines after settlement. So why were we called together to help set-up a management model for a fishery on early post-settlement larvae conducted only in two tiny island groups in Indonesia with loca ...
predation - Gulf Coast State College
... Extinctions Are Natural but Sometimes They Increase Sharply • Background extinction – Continuous low level of extinction of species ...
... Extinctions Are Natural but Sometimes They Increase Sharply • Background extinction – Continuous low level of extinction of species ...
Chapter 8
... Adapted to stable climate and environmental conditions Lower population growth rate (r) Population size fairly stable and usually close to carrying capacity (K) Specialist niche High ability to compete Late successional species Figure 8-10b, p. 167 ...
... Adapted to stable climate and environmental conditions Lower population growth rate (r) Population size fairly stable and usually close to carrying capacity (K) Specialist niche High ability to compete Late successional species Figure 8-10b, p. 167 ...
What is an Ecosystem? An ecosystem includes all the different
... A relationship between two species in which both species benefit Ex. Anemones and clownfish are known to benefit from each other in an intimate relationship. The clownfish becomes immune to the stinging nematocysts of the anemone. The anemone provides protection and food scraps for the fish. The fis ...
... A relationship between two species in which both species benefit Ex. Anemones and clownfish are known to benefit from each other in an intimate relationship. The clownfish becomes immune to the stinging nematocysts of the anemone. The anemone provides protection and food scraps for the fish. The fis ...
Biodiversity Threats
... • Biodiversity begets livelihoods • Livelihoods threaten biodiversity • The Year of Biodiversity - A way of living – matrix of different land-uses Ferreira et al. 2010. Journal of Environmental Management Submitted ...
... • Biodiversity begets livelihoods • Livelihoods threaten biodiversity • The Year of Biodiversity - A way of living – matrix of different land-uses Ferreira et al. 2010. Journal of Environmental Management Submitted ...
5.1 Habitats and Niches
... resources for other species in that niche. *Keystone predator is a predator that promotes a great niche diversity in its habitat *Abiotic factors contribute to niche diversity. These include temperature changes and moisture ...
... resources for other species in that niche. *Keystone predator is a predator that promotes a great niche diversity in its habitat *Abiotic factors contribute to niche diversity. These include temperature changes and moisture ...
Human Impact
... • Coal that we burn for electricity is rich in sulfur. Scientists have discovered that the sulfur introduced into the atmosphere by smokestacks combines with water vapor in the air to produce sulfuric acid. Rain and snow carry the sulfuric acid back to the earth’s surface. This acidified precipitati ...
... • Coal that we burn for electricity is rich in sulfur. Scientists have discovered that the sulfur introduced into the atmosphere by smokestacks combines with water vapor in the air to produce sulfuric acid. Rain and snow carry the sulfuric acid back to the earth’s surface. This acidified precipitati ...
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.