The role of economics in addressing aquatic invasive species Travis
... door of the Great Lakes via artificially created links between the two river basins. Electric barriers have been erected to keep carp from passing into the Great Lakes, but they may not be effective. Food web models suggest potential ecological impacts to several species, including a 10-20 percent d ...
... door of the Great Lakes via artificially created links between the two river basins. Electric barriers have been erected to keep carp from passing into the Great Lakes, but they may not be effective. Food web models suggest potential ecological impacts to several species, including a 10-20 percent d ...
HONOURS PROJECTS FOR 2014 The Aquatic Ecosystems
... invertebrate diversity in artificial waterbodies. Either Feb or mid-year start. Many artificial wetlands contain native macrophyte species, increasing their capacity to support biodiversity. However, exotic species of macrophyte are also commonly found. This field project will use sampling to determ ...
... invertebrate diversity in artificial waterbodies. Either Feb or mid-year start. Many artificial wetlands contain native macrophyte species, increasing their capacity to support biodiversity. However, exotic species of macrophyte are also commonly found. This field project will use sampling to determ ...
Accounting for biodiversity in marine ecosystem models
... marine ecosystem models Jorn Bruggeman S.A.L.M. Kooijman ...
... marine ecosystem models Jorn Bruggeman S.A.L.M. Kooijman ...
Butterfly survey report
... more affluent and more exposed to foreign investors, and also from the abandonment of marginal land on the steeper slopes leading to invasion by scrub species and ultimately to afforestation (planned or natural). In the Csik and Gyimes areas where land is mainly owned privately, the threats from aff ...
... more affluent and more exposed to foreign investors, and also from the abandonment of marginal land on the steeper slopes leading to invasion by scrub species and ultimately to afforestation (planned or natural). In the Csik and Gyimes areas where land is mainly owned privately, the threats from aff ...
Chapter 1 community ecology
... According to Clarke, a community is defined as “a group of mutually adjusted plants and animals inhabiting natural area” Example: Pond community: Plankton, plants, fishes, insects, crustaceans, molluscas, worms, microorganisms and so on in a pond ...
... According to Clarke, a community is defined as “a group of mutually adjusted plants and animals inhabiting natural area” Example: Pond community: Plankton, plants, fishes, insects, crustaceans, molluscas, worms, microorganisms and so on in a pond ...
Bio 4 - Study Guide 4
... What are the 5 agents of microevolution? (genetic drift, bottleneck effect, founder’s effect, gene flow, adaptive evolution, Darwinian fitness, female choice) What are the three types of natural selection? (know graphs and how the environment filters out individuals for each) What is sexual dimorphi ...
... What are the 5 agents of microevolution? (genetic drift, bottleneck effect, founder’s effect, gene flow, adaptive evolution, Darwinian fitness, female choice) What are the three types of natural selection? (know graphs and how the environment filters out individuals for each) What is sexual dimorphi ...
Apr7a
... If keystone species reduce likelihood of competitive exclusion, their activities would increase the number of species that could coexist in communities. Food Web Structure, Species Diversity and Intertidal Organisms (Fig. 17.6) As species richness increases, proportion of the web represented by pred ...
... If keystone species reduce likelihood of competitive exclusion, their activities would increase the number of species that could coexist in communities. Food Web Structure, Species Diversity and Intertidal Organisms (Fig. 17.6) As species richness increases, proportion of the web represented by pred ...
Introduction to Environmental Science
... cell or tissue level in an organism. The gorilla is adapted for living and feeding on the ground, while chimpanzees gather food from trees. ...
... cell or tissue level in an organism. The gorilla is adapted for living and feeding on the ground, while chimpanzees gather food from trees. ...
Extinction
... • Because of limited resources on islands, carrying capacity will be lower, decreasing population sizes and increasing extinction rates. ...
... • Because of limited resources on islands, carrying capacity will be lower, decreasing population sizes and increasing extinction rates. ...
Species concepts
... The differentiation of populations within a common geographic area into species Species that occur together: Are distinctive entities Are phenotypically different Utilize different parts of the habitat Behave separately Subspecies Within a single species, individuals in populations tha ...
... The differentiation of populations within a common geographic area into species Species that occur together: Are distinctive entities Are phenotypically different Utilize different parts of the habitat Behave separately Subspecies Within a single species, individuals in populations tha ...
Extinction of Species
... because of diverse gene pool and greater differentiation in alleles to cope with selection pressures ...
... because of diverse gene pool and greater differentiation in alleles to cope with selection pressures ...
Brush-tailed Phascogale (Phascogale tapoatafa) Priorities Action
... Develop and provide environmental assessment guidelines for Local Councils and other consent or determining authorities to enable adequate consideration of the potential impacts of activities or actions on phascogales. ...
... Develop and provide environmental assessment guidelines for Local Councils and other consent or determining authorities to enable adequate consideration of the potential impacts of activities or actions on phascogales. ...
Species Interactions
... 2) Species are also important agents of selection through their interactions. 3) Species compete when shared use of a resource limits a species’ growth, survival or reproduction. Competing species are more likely to coexist when they use resources in different ways. ...
... 2) Species are also important agents of selection through their interactions. 3) Species compete when shared use of a resource limits a species’ growth, survival or reproduction. Competing species are more likely to coexist when they use resources in different ways. ...
Scientific Method For centuries, people based their beliefs on their
... interpretations of what they saw going on in the world around them without testing their ideas using the scientific method. Their conclusions were based on untested observations. ...
... interpretations of what they saw going on in the world around them without testing their ideas using the scientific method. Their conclusions were based on untested observations. ...
Chapter 9 Study Guide
... *Factors that affect biodiversity in an ecosystem include climate, are, niche diversity, genetic diversity, and extinction. Climate (Tropical areas are most diverse.) Area (Large areas usually are more diverse.) Niche Diversity (If a species has a variety of ways to survive, it will likely thrive.) ...
... *Factors that affect biodiversity in an ecosystem include climate, are, niche diversity, genetic diversity, and extinction. Climate (Tropical areas are most diverse.) Area (Large areas usually are more diverse.) Niche Diversity (If a species has a variety of ways to survive, it will likely thrive.) ...
5-1 and 5-2 - Kennedy APES
... Although parasites can harm their hosts, they can promote community biodiversity. • Some parasites live inside the host (micororganisms, tapeworms). • Some parasites live outside the host (fleas, ticks, mistletoe plants, sea lampreys). • Some have little contact with host (cowbirds – lay eggs in a ...
... Although parasites can harm their hosts, they can promote community biodiversity. • Some parasites live inside the host (micororganisms, tapeworms). • Some parasites live outside the host (fleas, ticks, mistletoe plants, sea lampreys). • Some have little contact with host (cowbirds – lay eggs in a ...
pests and threats - Queensland Museum
... the efforts of students and community groups planting caterpillar food vines in reserves and backyards. In 1870 the Richmond Birdwing Butterfly was reportedly found in great numbers in the streets of Brisbane. Today no natural breeding sites are known between Caboolture and Nerang. Extinctions have ...
... the efforts of students and community groups planting caterpillar food vines in reserves and backyards. In 1870 the Richmond Birdwing Butterfly was reportedly found in great numbers in the streets of Brisbane. Today no natural breeding sites are known between Caboolture and Nerang. Extinctions have ...
Biological species concept
... • Gradualism: proposes that species descended from a common ancestor and gradually diverge more and more in morphology as they acquire unique adaptations. • Punctuated equilibrium: is a term used to describe periods of apparent stasis punctuated by sudden change observed in the fossil ...
... • Gradualism: proposes that species descended from a common ancestor and gradually diverge more and more in morphology as they acquire unique adaptations. • Punctuated equilibrium: is a term used to describe periods of apparent stasis punctuated by sudden change observed in the fossil ...
Wildland Impacts of Exotic Wildlife
... usually irreversible. They may be as damaging to native species and ecosystems on a global scale as the loss and degradation of habitats. (World Conservation Union, IUCN) ...
... usually irreversible. They may be as damaging to native species and ecosystems on a global scale as the loss and degradation of habitats. (World Conservation Union, IUCN) ...
Ch. 4 sect. 1 ppt
... • Basic level of study for an ecologist is an individual organism. • Ecology describes the relationship between organisms and their environment. • A species is a group of individuals that… – interbreed and produce fertile offspring. – have genetic similarity ...
... • Basic level of study for an ecologist is an individual organism. • Ecology describes the relationship between organisms and their environment. • A species is a group of individuals that… – interbreed and produce fertile offspring. – have genetic similarity ...
Module 14
... We can measure biodiversity in terms of Species Richness and Evenness - Two (2) measures for species diversity at local or regional scales. Species richness = the number of species in a given area such as a pond, canopy of a tree, or a plot of grassland. = is used by scientists to give an approxima ...
... We can measure biodiversity in terms of Species Richness and Evenness - Two (2) measures for species diversity at local or regional scales. Species richness = the number of species in a given area such as a pond, canopy of a tree, or a plot of grassland. = is used by scientists to give an approxima ...
Chapter V —Order Plecoptera
... Plecopteran nymphs are restricted to cool, clean streams with high dissolved oxygen content. some species, however, may be found along the wave-swept shores of large oligotrophic lakes. When subjected to low dissolved oxygen concentration, the nymphs of many species exhibit a characteristic “push-up ...
... Plecopteran nymphs are restricted to cool, clean streams with high dissolved oxygen content. some species, however, may be found along the wave-swept shores of large oligotrophic lakes. When subjected to low dissolved oxygen concentration, the nymphs of many species exhibit a characteristic “push-up ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.