Endangered Species - Ms. Anderson`s Room 280
... day hunting regulations minimize over-harvesting of wildlife. ...
... day hunting regulations minimize over-harvesting of wildlife. ...
Extinctions
... Extinctions have been occurring constantly at a low 'background rate', usually matched by the rate at which new species appear resulting in an overall increase in biodiversity A world without extinction would be really crowded!! ...
... Extinctions have been occurring constantly at a low 'background rate', usually matched by the rate at which new species appear resulting in an overall increase in biodiversity A world without extinction would be really crowded!! ...
Sustaining Biodiversity - species Mass extinction events Levels of
... Service – (grey wolf in Yellowstone another example) Ecological: Sea otters Reduced numbers in Aleutean Islands lead to increase in sea urchins; kelp forests devastated (photo: www.turtletrack.org) ...
... Service – (grey wolf in Yellowstone another example) Ecological: Sea otters Reduced numbers in Aleutean Islands lead to increase in sea urchins; kelp forests devastated (photo: www.turtletrack.org) ...
Biomes
... that is not native to a particular region. • Even familiar organisms such as cats and rats are considered to be exotic species when they are brought to regions where they never lived before. • Exotic species can threaten native species that have no natural defenses against them. ...
... that is not native to a particular region. • Even familiar organisms such as cats and rats are considered to be exotic species when they are brought to regions where they never lived before. • Exotic species can threaten native species that have no natural defenses against them. ...
Presentation
... termed the 'First Law of Conservation Biology.' Because of human actions, natural habitats are becoming increasingly isolated and island-like. By identifying potential mechanisms underlying the loss of species diversity, Island Biogeography Theory may help suggest ways in which we can design nature ...
... termed the 'First Law of Conservation Biology.' Because of human actions, natural habitats are becoming increasingly isolated and island-like. By identifying potential mechanisms underlying the loss of species diversity, Island Biogeography Theory may help suggest ways in which we can design nature ...
Invasive Species Grant Mulligan - University of Arizona | Ecology
... Invasive Plants • Invasive exotic plants are a major threat to many species of wild birds. • Long-term and often irreversible habitat degradation for birds and other animals. • Overall bird abundance was 32% greater on native-grass sites than on exotic-grass sites (Flanders). ...
... Invasive Plants • Invasive exotic plants are a major threat to many species of wild birds. • Long-term and often irreversible habitat degradation for birds and other animals. • Overall bird abundance was 32% greater on native-grass sites than on exotic-grass sites (Flanders). ...
Geography of Extinctions
... where range of at least two restricted-range species present. Their pattern is not random ...
... where range of at least two restricted-range species present. Their pattern is not random ...
In Depth – Main Threats to Biodiversity
... Most do not cause any problems, but a few have the ability to become highly invasive and these can have devastating affects on native wildlife. In the UK, plants like Japanese knotweed and Himalayan balsam have spread along the banks of many of our rivers, choking out the native species and creating ...
... Most do not cause any problems, but a few have the ability to become highly invasive and these can have devastating affects on native wildlife. In the UK, plants like Japanese knotweed and Himalayan balsam have spread along the banks of many of our rivers, choking out the native species and creating ...
Climate Change and Whales: To IWC
... • Species are dependent on one or more of above • Species can move rapidly if habitat and paths exist • Fish are cold-blooded. Life processes, like growth, are faster when warmer (within limits) • Many species have narrow ecological niches, but there are many species to fill niches • Small changes c ...
... • Species are dependent on one or more of above • Species can move rapidly if habitat and paths exist • Fish are cold-blooded. Life processes, like growth, are faster when warmer (within limits) • Many species have narrow ecological niches, but there are many species to fill niches • Small changes c ...
Amphibian decline case study
... Not many areas completely protected Also focus on surrounding areas with some level of human disturbance ...
... Not many areas completely protected Also focus on surrounding areas with some level of human disturbance ...
3.3 Threats to Biodiversity (Pages100-109)
... include habitat loss, the introduction of alien species, overexploitation, and breaking the connectivity among ecosystems. • Deforestation and draining wetlands can result in habitat loss. • Zebra Mussels ...
... include habitat loss, the introduction of alien species, overexploitation, and breaking the connectivity among ecosystems. • Deforestation and draining wetlands can result in habitat loss. • Zebra Mussels ...
Ecosystems and communities
... Tolerance: the range of conditions under which an organism can survive and reproduce. ...
... Tolerance: the range of conditions under which an organism can survive and reproduce. ...
Document
... its habitat, there would be a dramatic change in the species diversity of that habitat ...
... its habitat, there would be a dramatic change in the species diversity of that habitat ...
File
... • Many of the introduced species to Australia have become a significant problem to primary production and/or the natural environment and are known as pests. Examples of plant pests include blackberries, gorse, serrated tussock and Japanese kelp. Examples of animal pests include foxes, feral cats, an ...
... • Many of the introduced species to Australia have become a significant problem to primary production and/or the natural environment and are known as pests. Examples of plant pests include blackberries, gorse, serrated tussock and Japanese kelp. Examples of animal pests include foxes, feral cats, an ...
Using an elevation gradient as a proxy indicator to understand
... • Grassland • Pinyon Juniper (PJ) • Ponderosa Pine Meadow (PIPO-O) • Ponderosa Pine Forested (PIPO-F) • Mixed Conifer Meadow (MC-O) • Mixed Conifer Forested (MC-F) ...
... • Grassland • Pinyon Juniper (PJ) • Ponderosa Pine Meadow (PIPO-O) • Ponderosa Pine Forested (PIPO-F) • Mixed Conifer Meadow (MC-O) • Mixed Conifer Forested (MC-F) ...
Impact of 21st century climate change on the Baltic Sea fish
... affected by climate variations. These climatic effects and the underlying mechanisms are briefly reviewed. We then use recent regional – scale climate - ocean modelling results to consider how climate change during this century will affect the fish community of the Baltic and fisheries management. E ...
... affected by climate variations. These climatic effects and the underlying mechanisms are briefly reviewed. We then use recent regional – scale climate - ocean modelling results to consider how climate change during this century will affect the fish community of the Baltic and fisheries management. E ...
Exam 4 Review Part I
... 15. What is the effect of artificial selection on microevolution by always harvesting the “best”? a. Drive production of better phenotypes b. Drive production of worse phenotypes c. Drive production for fit individuals d. Drive production for unfit individuals e. Drive speciation 16. Which of the f ...
... 15. What is the effect of artificial selection on microevolution by always harvesting the “best”? a. Drive production of better phenotypes b. Drive production of worse phenotypes c. Drive production for fit individuals d. Drive production for unfit individuals e. Drive speciation 16. Which of the f ...
Systems
... What is ecology? (oikos = house or place to life; logos = study of Ecology is the study of the way living things interact with each other and their physical surroundings. It looks at the ways an organism is molded by its surroundings, how they make use of these surroundings, and how the area is alt ...
... What is ecology? (oikos = house or place to life; logos = study of Ecology is the study of the way living things interact with each other and their physical surroundings. It looks at the ways an organism is molded by its surroundings, how they make use of these surroundings, and how the area is alt ...
Environmental Science 2
... over time... • Natural Selection – better-fit individuals thrive and pass on traits to next generation • Adaptation – acquisition of traits allowing for species survival • Speciation: the development of a new species • Why? – environmental pressures allow for individual/species change ...
... over time... • Natural Selection – better-fit individuals thrive and pass on traits to next generation • Adaptation – acquisition of traits allowing for species survival • Speciation: the development of a new species • Why? – environmental pressures allow for individual/species change ...
Species: Eastern Spadefoot (Scaphiopus holbrookii)
... as the Pennsylvania Turnpike, create dangerous obstacles for northern movement of the eastern spadefoot. Predicted impact of land use changes resulting for human responses to climate change: Climate change mitigation activities, such as the construction of solar facilities, may occur within the curr ...
... as the Pennsylvania Turnpike, create dangerous obstacles for northern movement of the eastern spadefoot. Predicted impact of land use changes resulting for human responses to climate change: Climate change mitigation activities, such as the construction of solar facilities, may occur within the curr ...
Extinction and Extirpation
... Extinction: the disappearance of every individual of a species from the entire planet (once extinct they are GONE). Different research comes up with different numbers but it is estimated that 50 – 100 species go extinct every day! Don’t forget, while we tend to think more about animals, any living o ...
... Extinction: the disappearance of every individual of a species from the entire planet (once extinct they are GONE). Different research comes up with different numbers but it is estimated that 50 – 100 species go extinct every day! Don’t forget, while we tend to think more about animals, any living o ...
04 Climate and Ecosystems
... Herbivores can effect both the size and distribution of plant populations in a given community. They can also determine the places that certain plants can survive and grow ...
... Herbivores can effect both the size and distribution of plant populations in a given community. They can also determine the places that certain plants can survive and grow ...