Bog Turtle - Pennsylvania Natural Heritage Program
... must consist of deep mucky soils fed by groundwater seeps, with only modest amounts of open water. If any of these conditions change, the population can decline and may eventually disappear from the area. Status The bog turtle occurs in very low numbers in southeastern Pennsylvania and is imperiled ...
... must consist of deep mucky soils fed by groundwater seeps, with only modest amounts of open water. If any of these conditions change, the population can decline and may eventually disappear from the area. Status The bog turtle occurs in very low numbers in southeastern Pennsylvania and is imperiled ...
File
... E.O. Wilson summarizes the human threat to wildlife with HIPPO • Habitat Destruction: Main reason for current increase in extinction is habitat loss • Invasive Species: thrive in new territory where they are free of usual predators, diseases, or resource limitations • Pollution: pesticides, lead • P ...
... E.O. Wilson summarizes the human threat to wildlife with HIPPO • Habitat Destruction: Main reason for current increase in extinction is habitat loss • Invasive Species: thrive in new territory where they are free of usual predators, diseases, or resource limitations • Pollution: pesticides, lead • P ...
BIO.9
... arctic hare. When the hare numbers are up, food is abundant and the number of lynx increases. This puts pressure on the hare population and its numbers decrease, thus reducing the food availability for the lynx. Both populations fluctuate around a carrying capacity. However, this is not a complete p ...
... arctic hare. When the hare numbers are up, food is abundant and the number of lynx increases. This puts pressure on the hare population and its numbers decrease, thus reducing the food availability for the lynx. Both populations fluctuate around a carrying capacity. However, this is not a complete p ...
Miller Chapter 11 Review Chapter 11: Sustaining Aquatic
... deep as 15 meters (50ft) below the surface i. Kill large quantities of unwanted fish (bycatch) along with marine mammals, seabirds, and sea turtles ii. Abandoned and lost nets known as ghost nets float beneath the surface in many areas, trapping and drowning aquatic animals for years before they fin ...
... deep as 15 meters (50ft) below the surface i. Kill large quantities of unwanted fish (bycatch) along with marine mammals, seabirds, and sea turtles ii. Abandoned and lost nets known as ghost nets float beneath the surface in many areas, trapping and drowning aquatic animals for years before they fin ...
File
... Mimicry gives advantage to prey by allowing them to mimic or disguise themselves as something the predator is trying to avoid. For example, zebra butterflies lay eggs on passionflower leaves for baby caterpillars to eat once they hatch, but they do not lay eggs on leaves that already have eggs. Over ...
... Mimicry gives advantage to prey by allowing them to mimic or disguise themselves as something the predator is trying to avoid. For example, zebra butterflies lay eggs on passionflower leaves for baby caterpillars to eat once they hatch, but they do not lay eggs on leaves that already have eggs. Over ...
Interactions Within Ecosystems
... • Numbers increase by a certain factor over a period of time • J-shaped curve graph (pg 104 in text) ...
... • Numbers increase by a certain factor over a period of time • J-shaped curve graph (pg 104 in text) ...
Interactions Within Ecosystems
... • Numbers increase by a certain factor over a period of time • J-shaped curve graph (pg 104 in text) ...
... • Numbers increase by a certain factor over a period of time • J-shaped curve graph (pg 104 in text) ...
Slide 1
... Inform state and national politicians of desire to have conservation research funded with tax dollars Establish parks by writing to national ...
... Inform state and national politicians of desire to have conservation research funded with tax dollars Establish parks by writing to national ...
CH 17 Preserving Biodiversity
... Inform state and national politicians of desire to have conservation research funded with tax dollars Establish parks by writing to national ...
... Inform state and national politicians of desire to have conservation research funded with tax dollars Establish parks by writing to national ...
Introduction to Ecology
... 1. If Earth was smooth and had no interactions between land and ocean masses, two very large convection cells would arise between the polar and equatorial regions. 2. The spinning earth breaks these cells into smaller cells. 3. Friction with the spinning earth deflects the surface winds (Coriolis e ...
... 1. If Earth was smooth and had no interactions between land and ocean masses, two very large convection cells would arise between the polar and equatorial regions. 2. The spinning earth breaks these cells into smaller cells. 3. Friction with the spinning earth deflects the surface winds (Coriolis e ...
Ecology 2 questions
... 8. What is secondary succession? 9. From Slide 2- ecology 2 power point What is carrying capacity? What “limits” carrying capacity? 10. What are some density dependent and density independent factors that limit population growth? 11. How does predation limit population size? Give an example. 12. How ...
... 8. What is secondary succession? 9. From Slide 2- ecology 2 power point What is carrying capacity? What “limits” carrying capacity? 10. What are some density dependent and density independent factors that limit population growth? 11. How does predation limit population size? Give an example. 12. How ...
BIO 1C Study Guide 3: short distance flow, xylem and phloem flow
... What (specifically) is driving the collapse of the kelp forest ecosystem in the Aleutian islands? Be able to ...
... What (specifically) is driving the collapse of the kelp forest ecosystem in the Aleutian islands? Be able to ...
National Geographic. Overfishing. Web. April 3, 2015.
... species. In the past 50 years alone 90% of large ocean fish populations, such as orange roughy, Chilean sea bass, bluefin tuna, as well as many shark species have been depleted (National Geographic). This affects the entire ocean ecosystem, since these are the big predators often times. The fishing ...
... species. In the past 50 years alone 90% of large ocean fish populations, such as orange roughy, Chilean sea bass, bluefin tuna, as well as many shark species have been depleted (National Geographic). This affects the entire ocean ecosystem, since these are the big predators often times. The fishing ...
Terrestrial Biodiversity
... •Grow more timber on long rotations •Rely more on selective cutting and strip cutting •No clear-cutting, seed-tree, or shelterwood cutting on steeply sloped land •No fragmentation of remaining large blocks of forest •Sharply reduce road building into uncut forest areas •Leave most standing dead tree ...
... •Grow more timber on long rotations •Rely more on selective cutting and strip cutting •No clear-cutting, seed-tree, or shelterwood cutting on steeply sloped land •No fragmentation of remaining large blocks of forest •Sharply reduce road building into uncut forest areas •Leave most standing dead tree ...
PowerPoint Presentation - Understanding Our Environment
... actively managed for wood production. Sustainable harvest is key to regeneration. - Many reforestation projects involve Monoculture Forestry. Rapid growth and easier harvest. Disrupts ecological processes. ...
... actively managed for wood production. Sustainable harvest is key to regeneration. - Many reforestation projects involve Monoculture Forestry. Rapid growth and easier harvest. Disrupts ecological processes. ...
PowerPoint Presentation - Understanding Our Environment
... actively managed for wood production. Sustainable harvest is key to regeneration. - Many reforestation projects involve Monoculture Forestry. Rapid growth and easier harvest. Disrupts ecological processes. ...
... actively managed for wood production. Sustainable harvest is key to regeneration. - Many reforestation projects involve Monoculture Forestry. Rapid growth and easier harvest. Disrupts ecological processes. ...
Ecology I. - Amazon Web Services
... • “Limiting factors” - Too much or too little of any abiotic factor can limit or prevent growth of a population • Predators: grazers • Every part of the food web will have different controls • What could be a limiting factor in the Limboto lake? ...
... • “Limiting factors” - Too much or too little of any abiotic factor can limit or prevent growth of a population • Predators: grazers • Every part of the food web will have different controls • What could be a limiting factor in the Limboto lake? ...
Chapter 5 Biodiversity,Species Interactions2009
... = (birth+ immigration) - (death + emigration) dependent on resource availability or other environmental changes ...
... = (birth+ immigration) - (death + emigration) dependent on resource availability or other environmental changes ...
Chapter 12
... In the U.S., 5 of the top 10 species (shrimp, salmon, catfish, tilapia and clams) consumed in 2004 were at least partially produced in aquaculture operations. While aquaculture has the potential to reduce pressure on wild-caught fish, this has not yet been realized. Ironically, it may do just the op ...
... In the U.S., 5 of the top 10 species (shrimp, salmon, catfish, tilapia and clams) consumed in 2004 were at least partially produced in aquaculture operations. While aquaculture has the potential to reduce pressure on wild-caught fish, this has not yet been realized. Ironically, it may do just the op ...
Ecology
... • Unrestricted growth is not prevalent in nature • Growing population eventually exhausts food or space – Planktonic blooms and locusts outbreaks both end when resources are exhausted ...
... • Unrestricted growth is not prevalent in nature • Growing population eventually exhausts food or space – Planktonic blooms and locusts outbreaks both end when resources are exhausted ...
Unit 7: Ecology Name: Date: Aim #51 Community Interactions: How
... Predator-prey interactions help shape communities. A predator is an organism that hunts and kills other organisms for food. Prey are the organisms hunted or eaten by a predator. Predation is the act of one organism, a predator, feeding on another organism, its prey. Predator and prey populations inf ...
... Predator-prey interactions help shape communities. A predator is an organism that hunts and kills other organisms for food. Prey are the organisms hunted or eaten by a predator. Predation is the act of one organism, a predator, feeding on another organism, its prey. Predator and prey populations inf ...
pdf
... requires accurate information about the ecology and economics of the fishery. The goal of an FMP is to provide for conservation of the resource while balancing the interests of those who harvest and benefit from the resource. The challenge is that only incomplete knowledge of the mid-Atlantic coasta ...
... requires accurate information about the ecology and economics of the fishery. The goal of an FMP is to provide for conservation of the resource while balancing the interests of those who harvest and benefit from the resource. The challenge is that only incomplete knowledge of the mid-Atlantic coasta ...
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.