Species Status Assessments using the Delphi Technique: Operating
... STATUS DEFINITIONS E - Endangered: Applies to a species whose prospects for survival within the state are in immediate danger due to one or several factors, such as loss or degradation of habitat, overexploitation, predation, competition, disease or environmental pollution, etc. An endangered speci ...
... STATUS DEFINITIONS E - Endangered: Applies to a species whose prospects for survival within the state are in immediate danger due to one or several factors, such as loss or degradation of habitat, overexploitation, predation, competition, disease or environmental pollution, etc. An endangered speci ...
biodiversity laws - Nature Conservation Council of NSW
... Koala populations have declined by 42% over the last 20 years – major cause is land clearing (WWF report) ...
... Koala populations have declined by 42% over the last 20 years – major cause is land clearing (WWF report) ...
Chapter 3 Notes
... As abiotic factors change, the environment also changes As well, as one population within the ecosystem changes, those populations that interact with them will also change Populations are also able to change their environment over time, particularly after a major change to that environment ...
... As abiotic factors change, the environment also changes As well, as one population within the ecosystem changes, those populations that interact with them will also change Populations are also able to change their environment over time, particularly after a major change to that environment ...
Climate change and range shifts in marine communities, PAT EDIT
... • Under this hypothesis, the lower limits of the mussel zone are set by predation from the sea star Pisaster ochraceus. Upper limits are set by temperature stress. • Wave exposure (topographic differences in average levels of wave action, including up-shore wave wash) affects temperature stress. On ...
... • Under this hypothesis, the lower limits of the mussel zone are set by predation from the sea star Pisaster ochraceus. Upper limits are set by temperature stress. • Wave exposure (topographic differences in average levels of wave action, including up-shore wave wash) affects temperature stress. On ...
The Weed Risk Assessment system
... Evidence that a persistent propagule bank is formed (>1 yr) Greater than 1% of the seed should remain viable after more than one year in the soil. This bank may include both canopy and soil seed banks. Long seed viability increases a plants invasive potential. ...
... Evidence that a persistent propagule bank is formed (>1 yr) Greater than 1% of the seed should remain viable after more than one year in the soil. This bank may include both canopy and soil seed banks. Long seed viability increases a plants invasive potential. ...
Research Paper/Writing Sample Impacts of Climate Change
... pertaining to invasions in pelagic ecosystems. However, many high trophic level pelagic species (e.g. Bluefin Tuna) are already subject to intense pressures from fisheries around the world. Thus it is likely that any increased competition for resources will have a negative effect on their overall po ...
... pertaining to invasions in pelagic ecosystems. However, many high trophic level pelagic species (e.g. Bluefin Tuna) are already subject to intense pressures from fisheries around the world. Thus it is likely that any increased competition for resources will have a negative effect on their overall po ...
Life on Earth—The Importance of Biodiversity
... April 20, 2009—Biodiversity is the variety of life on Earth. This includes all plants, animals and their habitats. As you can imagine, the Earth’s biodiversity is mind-bogglingly vast. According to the USA’s National Science Foundation (nsf.gov), 1.75 million species of organisms have been discovere ...
... April 20, 2009—Biodiversity is the variety of life on Earth. This includes all plants, animals and their habitats. As you can imagine, the Earth’s biodiversity is mind-bogglingly vast. According to the USA’s National Science Foundation (nsf.gov), 1.75 million species of organisms have been discovere ...
TPO-30
... Determining the functions of play is difficult because the functions may be long-term, with beneficial effects not showing up until the animal's adulthood. Play is not without considerable costs to the individual animal. Play is usually very active, involving movement in space and, at times, noisema ...
... Determining the functions of play is difficult because the functions may be long-term, with beneficial effects not showing up until the animal's adulthood. Play is not without considerable costs to the individual animal. Play is usually very active, involving movement in space and, at times, noisema ...
Oh Deer! - redriverzoo.org
... conservation status of this species is vulnerable. Only 7000 remain in the wild and more than 100 are kept in zoos. Students will use their creativity to make signs that convey messages to people about how they can help protect these deer. Background Information Before starting this activity, talk a ...
... conservation status of this species is vulnerable. Only 7000 remain in the wild and more than 100 are kept in zoos. Students will use their creativity to make signs that convey messages to people about how they can help protect these deer. Background Information Before starting this activity, talk a ...
Stellaria media, Veronica nivea, Plantago
... the null hypothesis is rejected. The alternate hypothesis that the Simpson’s Index of Diversity value will be lower for the “rewilded” area compared to the surrounding area is supported. ● Also, as shown by data tables 1 and 2, the plot with the greatest level of biodiversity (Plot 3) also has the g ...
... the null hypothesis is rejected. The alternate hypothesis that the Simpson’s Index of Diversity value will be lower for the “rewilded” area compared to the surrounding area is supported. ● Also, as shown by data tables 1 and 2, the plot with the greatest level of biodiversity (Plot 3) also has the g ...
Introduction to environmental biology - Assets
... includes the terms habitat, population, community and ecosystem, which you will have already met in Biology 1. A habitat is the place where an organism lives. The word is Latin and literally means ‘it dwells’. Actually, organisms from a single species can live in a number of habitats. For example, t ...
... includes the terms habitat, population, community and ecosystem, which you will have already met in Biology 1. A habitat is the place where an organism lives. The word is Latin and literally means ‘it dwells’. Actually, organisms from a single species can live in a number of habitats. For example, t ...
Common Name (Scientific name)
... Life History & Threats: Generally one generation per year. Fairy shrimp eggs dry out during the summer and hatch after being soaked by winter rains. The larval stage lasts an average of 33 days, and adults reproduce after an average of 43 days (Cordeiro 2008). This species is faced with threats of h ...
... Life History & Threats: Generally one generation per year. Fairy shrimp eggs dry out during the summer and hatch after being soaked by winter rains. The larval stage lasts an average of 33 days, and adults reproduce after an average of 43 days (Cordeiro 2008). This species is faced with threats of h ...
ch10 - Cobb Learning
... – An environmental myth that states that the natural environment, when not influenced by human activity, will reach a constant status, unchanging over time. – Environmentalists in early 20th cent. Formalized the idea • Succession proceeds to a fixed, “classic” condition called Climax Condition (stea ...
... – An environmental myth that states that the natural environment, when not influenced by human activity, will reach a constant status, unchanging over time. – Environmentalists in early 20th cent. Formalized the idea • Succession proceeds to a fixed, “classic” condition called Climax Condition (stea ...
... Lotka [1] and Volterra [2] initiated the research in the field of theoretical ecology. Since then many researchers studied the Predator-Prey or competitive model with Mutualism and commensalism. The dynamical relationship between predators & their prey is one of the important aspect in the populatio ...
Invasive Species
... Alien species that sustain self-replacing populations over several life cycles; produce reproductive offspring, often in very large numbers at considerable distances from the parent and/or site of introduction; and have the potential to spread over long distances (Richardson et al. 2000; Occhipinti-A ...
... Alien species that sustain self-replacing populations over several life cycles; produce reproductive offspring, often in very large numbers at considerable distances from the parent and/or site of introduction; and have the potential to spread over long distances (Richardson et al. 2000; Occhipinti-A ...
help maintain balance & stability in an ecosystem?
... individuals a given area can support – there is a limit! • Limiting Factors: – Density Dependent Limiting Factors – determined by organism interactions - competition for food, territory, mates, shelter; also disease & parasites from living close together – Density Independent Limiting Factors – usua ...
... individuals a given area can support – there is a limit! • Limiting Factors: – Density Dependent Limiting Factors – determined by organism interactions - competition for food, territory, mates, shelter; also disease & parasites from living close together – Density Independent Limiting Factors – usua ...
Sternula nereis, Fairy Tern
... Threats include habitat degradation by encroaching weeds and housing developments, predation by introduced mammals and gulls, extreme weather events (which locally at least can put an entire breeding season at risk) (Parrish and Honnor 1997), and disturbance by humans (particularly tourists in New C ...
... Threats include habitat degradation by encroaching weeds and housing developments, predation by introduced mammals and gulls, extreme weather events (which locally at least can put an entire breeding season at risk) (Parrish and Honnor 1997), and disturbance by humans (particularly tourists in New C ...
Self-study Problems #7: Early primates and Plio
... 13. Explain some features of the earliest known australopithecine, Australopithecus anamensis, that suggest that it may have been becoming more bipedal. ...
... 13. Explain some features of the earliest known australopithecine, Australopithecus anamensis, that suggest that it may have been becoming more bipedal. ...
Baiting effectiveness for introduced rats (Rattus sp.) on Christmas
... Abstract. The importance of oceanic islands for conservation of native species is often affected by the introduction of invasive species. Introduced mammalian predators such as feral cats (Felis catus) and rats (Rattus sp.), have been responsible for population decline and extinction of many native ...
... Abstract. The importance of oceanic islands for conservation of native species is often affected by the introduction of invasive species. Introduced mammalian predators such as feral cats (Felis catus) and rats (Rattus sp.), have been responsible for population decline and extinction of many native ...
Feeding Relationships
... not only on where it lives but also on what it does. It may be said that the habitat is the organism's ‘address’, and the niche is its ‘profession’, biologically speaking.” Odum - Fundamentals of Ecology ...
... not only on where it lives but also on what it does. It may be said that the habitat is the organism's ‘address’, and the niche is its ‘profession’, biologically speaking.” Odum - Fundamentals of Ecology ...
Chapter 7: Biodiversity and Conservation
... Unlike the other factors, climate change will have a potentially global effect on ...
... Unlike the other factors, climate change will have a potentially global effect on ...
Primary succession on Mount St. Helens, with reference to Surtsey
... I summarized the transect data by the first and last four years to characterize the changing spectra. Species were grouped by dispersal types and the spectra compared (Fig. 4). Pioneers were dominated by parachute species, but mosses and ferns were sparse; these species need facilitation to establis ...
... I summarized the transect data by the first and last four years to characterize the changing spectra. Species were grouped by dispersal types and the spectra compared (Fig. 4). Pioneers were dominated by parachute species, but mosses and ferns were sparse; these species need facilitation to establis ...
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.