2. Ecological Techniques
... exist for investigating the biotic and abiotic components of ecosystems Field ecologists investigate communities by using random sampling techniques that aim to: • eliminate bias • reduce the effects of chance • minimise errors in obtaining measurements/samples Quadrat and transect sampling are comm ...
... exist for investigating the biotic and abiotic components of ecosystems Field ecologists investigate communities by using random sampling techniques that aim to: • eliminate bias • reduce the effects of chance • minimise errors in obtaining measurements/samples Quadrat and transect sampling are comm ...
Ecological Consequences of Extinction
... featuring higher-order interactions (Lawton, 1994). However, the majority of studies have found a positive but saturating relationship between richness and function, such that ecosystem function approaches its maximum level at some intermediate level of species richness (Schwartz et al., 2000). One ...
... featuring higher-order interactions (Lawton, 1994). However, the majority of studies have found a positive but saturating relationship between richness and function, such that ecosystem function approaches its maximum level at some intermediate level of species richness (Schwartz et al., 2000). One ...
Genetic diversity
... • Conservation biologists use particular species as tools to conserve communities and ecosystems - Protecting the habitat of these umbrella species helps protect less-charismatic animals that would not have generated public interest • Flagship species – large and charismatic species used as spearhea ...
... • Conservation biologists use particular species as tools to conserve communities and ecosystems - Protecting the habitat of these umbrella species helps protect less-charismatic animals that would not have generated public interest • Flagship species – large and charismatic species used as spearhea ...
A weed risk assessment system for new conservation weeds in New
... wind dispersal may be more important than bird dispersal for the invasion of open habitats unsuitable for frugivorous birds, and a scoring system for that habitat type might give bird dispersal a lower score. Even so, many naturalised species have abundant wind-blown seeds, but only a few are consi ...
... wind dispersal may be more important than bird dispersal for the invasion of open habitats unsuitable for frugivorous birds, and a scoring system for that habitat type might give bird dispersal a lower score. Even so, many naturalised species have abundant wind-blown seeds, but only a few are consi ...
Where The Wild Extinctions Are
... passes the reasonability test -- for example, we would expect to find more species in a state than we find in any one county in that state. Does this species-area relationship work in reverse? That is to say, if the area of a forest is reduced, does the number of species in the forest decrease as we ...
... passes the reasonability test -- for example, we would expect to find more species in a state than we find in any one county in that state. Does this species-area relationship work in reverse? That is to say, if the area of a forest is reduced, does the number of species in the forest decrease as we ...
extinction-proneness of island species
... ABSTRACT.- After three centuries of anthropogenic insults, island species and communities are in the forefront of the precipitous decline in biodiversity that we face in the new millennium. The sorry plight of island biotas is often seen as resulting from an inherent weakness of island species, mani ...
... ABSTRACT.- After three centuries of anthropogenic insults, island species and communities are in the forefront of the precipitous decline in biodiversity that we face in the new millennium. The sorry plight of island biotas is often seen as resulting from an inherent weakness of island species, mani ...
30 years of the endangered species act
... picked some of the most fervent opponents of the Endangered Species Act to lead the agencies that administer it. One example, the Department of the Interior's Assistant Secretary for Fish, Wildlife, and Parks, Craig Manson, stated in an interview, “If we are saying that the loss of species in and of ...
... picked some of the most fervent opponents of the Endangered Species Act to lead the agencies that administer it. One example, the Department of the Interior's Assistant Secretary for Fish, Wildlife, and Parks, Craig Manson, stated in an interview, “If we are saying that the loss of species in and of ...
Stable Isotope Analysis Reveals That Agricultural Habitat Provides
... been directly quantified. We quantified the proportional use that Calidris alpina pacifica (Dunlin) made of estuarine vs. terrestrial farmland resources on the Fraser River Delta, British Columbia, using stable isotope analysis (δ13C, δ15N) of blood from 268 Dunlin over four winters, 1997 through 20 ...
... been directly quantified. We quantified the proportional use that Calidris alpina pacifica (Dunlin) made of estuarine vs. terrestrial farmland resources on the Fraser River Delta, British Columbia, using stable isotope analysis (δ13C, δ15N) of blood from 268 Dunlin over four winters, 1997 through 20 ...
BCS311 Module 5
... communities could be explained as a function of physical factors and interaction with animal communities. His ideas spread rapidly among biologists from Atlantic Europe to Russia and North America establishing ecology as a global science. However, to some extent, the vocabulary of new scientific ter ...
... communities could be explained as a function of physical factors and interaction with animal communities. His ideas spread rapidly among biologists from Atlantic Europe to Russia and North America establishing ecology as a global science. However, to some extent, the vocabulary of new scientific ter ...
Ecology Worksheets The Science of Ecology Principles of Ecology True or False
... help them stay warm. Otherwise, their body temperature will drop to a level that is too low for survival. Species that live in these habitats have evolved fur, blubber, and other traits that provide insulation in order for them to survive in the cold. Human destruction of habitats is the major facto ...
... help them stay warm. Otherwise, their body temperature will drop to a level that is too low for survival. Species that live in these habitats have evolved fur, blubber, and other traits that provide insulation in order for them to survive in the cold. Human destruction of habitats is the major facto ...
The basic right as the most fundamental animal right
... • Tolerated choice equality (respect the choice of other helpers) • Prioritarian justice: maximise the qualities of life (well-beings) of all sentient beings, giving strong priority to the worst-off individual. (Maximise the qualities of life of the lowest levels, unless this is at the expense of mu ...
... • Tolerated choice equality (respect the choice of other helpers) • Prioritarian justice: maximise the qualities of life (well-beings) of all sentient beings, giving strong priority to the worst-off individual. (Maximise the qualities of life of the lowest levels, unless this is at the expense of mu ...
S R : ENERGY
... To mitigate global climate change and act as a substitute for fossil fuels, bioenergy is becoming an important component of national energy portfolios. However, if not managed correctly, bioenergy crops could further accelerate land-use change and associated biodiversity loss, and their large-scale ...
... To mitigate global climate change and act as a substitute for fossil fuels, bioenergy is becoming an important component of national energy portfolios. However, if not managed correctly, bioenergy crops could further accelerate land-use change and associated biodiversity loss, and their large-scale ...
Tool #1: Community Forestry
... a population increase of only 17%. The Delaware Valley Regional Planning Commission found that from 1930 to 1990, the amount of developed land increased five times faster than the total population over this 60-year period. The rate of land consumption in recent decades far exceeds the rate of popula ...
... a population increase of only 17%. The Delaware Valley Regional Planning Commission found that from 1930 to 1990, the amount of developed land increased five times faster than the total population over this 60-year period. The rate of land consumption in recent decades far exceeds the rate of popula ...
THE EcosysTEm 2 Structure 2.1
... displayed on the shelves, because the rates at which the goods are sold and the shelves are restocked also need to be known. The same is true of ecosystems. Pyramids of biomass simply represent the momentary stock, whereas pyramids of productivity show the rate at which that stock is being generated ...
... displayed on the shelves, because the rates at which the goods are sold and the shelves are restocked also need to be known. The same is true of ecosystems. Pyramids of biomass simply represent the momentary stock, whereas pyramids of productivity show the rate at which that stock is being generated ...
University of West
... varieties are selected based on timber yields with minimal consideration for adaptive abilities. This fact, along with the specific age and cultivation methods of these plantations contribute to higher instability and less resistance to damages and diseases. The knowledge and understanding of the do ...
... varieties are selected based on timber yields with minimal consideration for adaptive abilities. This fact, along with the specific age and cultivation methods of these plantations contribute to higher instability and less resistance to damages and diseases. The knowledge and understanding of the do ...
(PT1): Naturalist (Monarch Butterflies) Subjects: Science
... Living things depend on their habitat to meet their basic needs. ESSENTIAL QUESTIONS: What allows some populations of organisms to change and survive while others cannot? How do humans influence the environment? When investigating different systems (e.g., agriculture, terrestrial, aquatic), how does ...
... Living things depend on their habitat to meet their basic needs. ESSENTIAL QUESTIONS: What allows some populations of organisms to change and survive while others cannot? How do humans influence the environment? When investigating different systems (e.g., agriculture, terrestrial, aquatic), how does ...
Higher Trophic Levels Group - South Bay Salt Pond Restoration
... 75% of viable habitat areas within each large marsh complex with a capture efficiency level of 5.0 or better in five consecutive years ...
... 75% of viable habitat areas within each large marsh complex with a capture efficiency level of 5.0 or better in five consecutive years ...
Unit 2 Ecology Chp 52 Intro to Ecology and the
... domestic animals, and accounts of severe stinging and even deaths have served to map the spread of the African bee. By 2000, ten people had been killed by these bees in the United States, and beekeepers are understandably worried that the African bee will damage the established honeybee industry. Wh ...
... domestic animals, and accounts of severe stinging and even deaths have served to map the spread of the African bee. By 2000, ten people had been killed by these bees in the United States, and beekeepers are understandably worried that the African bee will damage the established honeybee industry. Wh ...
STATE OF CALIFORNIA STATE WATER RESOURCES CONTROL BOARD
... viability characteristics identified by McElhany et al 2000 and Lindley et al. 2007; (3) consideration of four specific methods for determining flows that correspond to these species and viability criteria; and (4) using the most protective flow recommendation identified using this methodology in or ...
... viability characteristics identified by McElhany et al 2000 and Lindley et al. 2007; (3) consideration of four specific methods for determining flows that correspond to these species and viability criteria; and (4) using the most protective flow recommendation identified using this methodology in or ...
Strategies for Managing Early Succession Habitat for Wildlife
... a variety of wildlife species. Early seral stages follow some form of disturbance but can become dominated by shrubs and trees rather quickly, especially in areas with abundant rainfall and relatively long growing seasons, such as the southeastern United States. In the absence of natural disturbance ...
... a variety of wildlife species. Early seral stages follow some form of disturbance but can become dominated by shrubs and trees rather quickly, especially in areas with abundant rainfall and relatively long growing seasons, such as the southeastern United States. In the absence of natural disturbance ...
The Definition of Wilderness: pushing true wilderness into the frontline!
... Wilderness is a powerful and inspirational means of appreciating wild nature that comes from having a common understanding A Wilderness Convention for Europe gets around not having the word in protected area legislation or in all European languages The Framework Convention will have a Protocol for w ...
... Wilderness is a powerful and inspirational means of appreciating wild nature that comes from having a common understanding A Wilderness Convention for Europe gets around not having the word in protected area legislation or in all European languages The Framework Convention will have a Protocol for w ...
Avian Conservation under the Endangered Species Act
... Over 1000 (11%) of the world’s bird species are critically endangered, endangered, or vulnerable (Smith et al. 1993; World Conservation Union 1996). In the United States, 97 bird species are listed as either threatened or endangered and receive federal protection under the U.S. Endangered Species Ac ...
... Over 1000 (11%) of the world’s bird species are critically endangered, endangered, or vulnerable (Smith et al. 1993; World Conservation Union 1996). In the United States, 97 bird species are listed as either threatened or endangered and receive federal protection under the U.S. Endangered Species Ac ...
Soil detritivore macro-invertebrate assemblages throughout a
... The recent awareness of a global biodiversity crisis has underscored the urgent necessity of maintaining ecosystem integrity and functioning [36]. In forest ecosystems the conservation of biological diversity has been identified as a major goal of sustainable silvicultural management [39]. Intensive ...
... The recent awareness of a global biodiversity crisis has underscored the urgent necessity of maintaining ecosystem integrity and functioning [36]. In forest ecosystems the conservation of biological diversity has been identified as a major goal of sustainable silvicultural management [39]. Intensive ...
Queen Conch Powerpoint Presentation here.
... An Hypothesis Based on Info from Jyl • Given that a colony of Conch will vacate an area once removed from that colony (Lapachin 1999), and… • That under “natural” conditions there is much less predation of the adult vs. juvenile conch, then… • Perhaps human predation has the double effect of not on ...
... An Hypothesis Based on Info from Jyl • Given that a colony of Conch will vacate an area once removed from that colony (Lapachin 1999), and… • That under “natural” conditions there is much less predation of the adult vs. juvenile conch, then… • Perhaps human predation has the double effect of not on ...
Unit V
... 2. Study of how living things interact with each other and with the physical environment 3. Modern ecology not just descriptive, also predictive 4. One goal of ecology is to develop models that explain and predict the abundance of populations. ...
... 2. Study of how living things interact with each other and with the physical environment 3. Modern ecology not just descriptive, also predictive 4. One goal of ecology is to develop models that explain and predict the abundance of populations. ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.