High School Science Essential Curriculum - Environmental
... Examine how interactions between a species and its environment define the species’ niche. c. Discriminate between a species and a population and between a community and an ecosystem. d. Explain how organisms have adapted to their environments using examples from the diversity of living things. Goal ...
... Examine how interactions between a species and its environment define the species’ niche. c. Discriminate between a species and a population and between a community and an ecosystem. d. Explain how organisms have adapted to their environments using examples from the diversity of living things. Goal ...
Succession
... colonization. For example they usually have spores or seeds that can travel long distances ...
... colonization. For example they usually have spores or seeds that can travel long distances ...
Effects of stocking-up freshwater food webs
... Brown trout have been stocked into New Zealand streams and have subsequently displaced many native fishes in the family Galaxiidae [57]. Historically, galaxiids were common top predators, but are now restricted to trout-free reaches above waterfalls and other barriers to migration. In these reaches, ...
... Brown trout have been stocked into New Zealand streams and have subsequently displaced many native fishes in the family Galaxiidae [57]. Historically, galaxiids were common top predators, but are now restricted to trout-free reaches above waterfalls and other barriers to migration. In these reaches, ...
NotesChapter7
... Population extinction is certain if, in the long term, the mortality rate is higher than the birth rate (Barbault and Sastrapradja 1995) in the absence of migration. If migration is present, extinction is certain if, in the long term, the combined death and emigration rates exceed the combined birth ...
... Population extinction is certain if, in the long term, the mortality rate is higher than the birth rate (Barbault and Sastrapradja 1995) in the absence of migration. If migration is present, extinction is certain if, in the long term, the combined death and emigration rates exceed the combined birth ...
NotesChapter7
... Monitoring may take three forms. Inventories are counts of the number of individuals in the population or the number of species in a community (Primack 1998). Surveys are estimates of population size based on sampling. They are used where populations are large or cover an extensive range. Surveys ar ...
... Monitoring may take three forms. Inventories are counts of the number of individuals in the population or the number of species in a community (Primack 1998). Surveys are estimates of population size based on sampling. They are used where populations are large or cover an extensive range. Surveys ar ...
Predation
... • Need to also incorporate recruitment rate of prey • Different types of curves indicate different types of relationships – Predators regulate prey population – Prey regulated by intraspecific competition for food ...
... • Need to also incorporate recruitment rate of prey • Different types of curves indicate different types of relationships – Predators regulate prey population – Prey regulated by intraspecific competition for food ...
ppt - Kyle Harms
... Stability (in the strict mathematical sense) – a system is stable if, and only if, the variables all return to equilibrium conditions after displacement from them Resilience – the rapidity with which a variable that has been displaced from equilibrium returns to it Persistence – the duration that a ...
... Stability (in the strict mathematical sense) – a system is stable if, and only if, the variables all return to equilibrium conditions after displacement from them Resilience – the rapidity with which a variable that has been displaced from equilibrium returns to it Persistence – the duration that a ...
Snowflake coral (Carijoa riisei)
... Atlantic and Caribbean from Florida to Brazil • In the Western Pacific, a species of Carijoa has been reported from many other islands and on the continents of Australia and Asia, however, it is not known which populations are the same as Carijoa riisei in Hawaii • It is likely that other Pacific is ...
... Atlantic and Caribbean from Florida to Brazil • In the Western Pacific, a species of Carijoa has been reported from many other islands and on the continents of Australia and Asia, however, it is not known which populations are the same as Carijoa riisei in Hawaii • It is likely that other Pacific is ...
Coevolution
... the evolutionary utility of sexual reproduction is largely to produce variable offspring. – If the organism is very well-adapted for the environment, this can be a disadvantage, because sex breaks up potentially useful combinations of alleles. – In changeable or uncertain environments, sexual reprod ...
... the evolutionary utility of sexual reproduction is largely to produce variable offspring. – If the organism is very well-adapted for the environment, this can be a disadvantage, because sex breaks up potentially useful combinations of alleles. – In changeable or uncertain environments, sexual reprod ...
L17.5_Population Growth
... population will grow exponentially. Exponential growth occurs when the individuals in a population reproduce at a constant rate. The population becomes larger and larger until it approaches an infinitely large size. ...
... population will grow exponentially. Exponential growth occurs when the individuals in a population reproduce at a constant rate. The population becomes larger and larger until it approaches an infinitely large size. ...
Future directions of fisheries management
... The multi-species approach adds a new level of information by addressing species interactions. The multi-species approach relies mainly upon diet composition (trophic structure) and recruitment data (amount of fish added to the exploitable stock each year) to predict the consequences of varied fishing ...
... The multi-species approach adds a new level of information by addressing species interactions. The multi-species approach relies mainly upon diet composition (trophic structure) and recruitment data (amount of fish added to the exploitable stock each year) to predict the consequences of varied fishing ...
3. Species characteristics
... Sthenoteuthis oualaniensis is thought to be the most abundant large squid in the tropical and sub-tropical waters of the Indo-Pacific region (Young and Hirota 1998, Dunning 1998). It has a patchy distribution and occurs from the Red Sea to Australia and from the west coast of Central America to the ...
... Sthenoteuthis oualaniensis is thought to be the most abundant large squid in the tropical and sub-tropical waters of the Indo-Pacific region (Young and Hirota 1998, Dunning 1998). It has a patchy distribution and occurs from the Red Sea to Australia and from the west coast of Central America to the ...
Biology Chapter 5 Test
... into the population, or they can move into it from outside the population, or immigrate. There are two ways individuals can be removed from a population. They can die, or they can move out of the population, or emigrate. ...
... into the population, or they can move into it from outside the population, or immigrate. There are two ways individuals can be removed from a population. They can die, or they can move out of the population, or emigrate. ...
AICE Marine Science AS Level
... (e) demonstrate an understanding that the nutrients taken up by organisms in food chains may sink to the sea floor in faeces or after death, may be incorporated into coral reefs, or may be removed by harvesting (f) show that each of the nutrient cycles listed below can be summarised as shown in Figu ...
... (e) demonstrate an understanding that the nutrients taken up by organisms in food chains may sink to the sea floor in faeces or after death, may be incorporated into coral reefs, or may be removed by harvesting (f) show that each of the nutrient cycles listed below can be summarised as shown in Figu ...
lect14cut
... one while reducing fitness of another • (+,-) interaction. Minus to “prey/host” • Plus to: – Predators: Kill and consume MANY other organisms ...
... one while reducing fitness of another • (+,-) interaction. Minus to “prey/host” • Plus to: – Predators: Kill and consume MANY other organisms ...
Chapter 35
... AIM: How do scientists describe population growth? 2. Population limiting factors - environmental factors that restrict population growth 3. Logistic Growth Model (S - shaped curve) Q: How does the logistic model differ from the exponential model? A: It accounts for limiting factors in the environm ...
... AIM: How do scientists describe population growth? 2. Population limiting factors - environmental factors that restrict population growth 3. Logistic Growth Model (S - shaped curve) Q: How does the logistic model differ from the exponential model? A: It accounts for limiting factors in the environm ...
Terrestrial Ecosystem Responses to Biotic Interchange
... Such context dependency calls for an improved understanding of how the balance between species ...
... Such context dependency calls for an improved understanding of how the balance between species ...
The Effect of Recycling on Plant Competitive Hierarchies
... (e.g., hundreds of years). b, Litter is heterogeneous, with a certain fraction (mi) of the litter decomposing at rate qi and the remainder (1 ⫺ mi ; gray) decomposing at a much slower rate and effectively never being decomposed over the time shown here. ...
... (e.g., hundreds of years). b, Litter is heterogeneous, with a certain fraction (mi) of the litter decomposing at rate qi and the remainder (1 ⫺ mi ; gray) decomposing at a much slower rate and effectively never being decomposed over the time shown here. ...
Case Studies of Arthropod Diversity and Distribution
... adapted to environmental conditions there. It is premature to draw general conclusions about the vertical distribution of insects in tropical forests. We simply do not have enough data yet. Long-term studies, such as that of Roubik (1993), suggest that temporal movements up and down in response to c ...
... adapted to environmental conditions there. It is premature to draw general conclusions about the vertical distribution of insects in tropical forests. We simply do not have enough data yet. Long-term studies, such as that of Roubik (1993), suggest that temporal movements up and down in response to c ...
An Essay on e
... the change in the population X is proportional to the level of the population. It follows that if there were more bacteria around, the change ¢X would be proportionally greater. Now let the bacteria be divisible. That is a “half bacterium” can also clone itself in one period and in half a period it ...
... the change in the population X is proportional to the level of the population. It follows that if there were more bacteria around, the change ¢X would be proportionally greater. Now let the bacteria be divisible. That is a “half bacterium” can also clone itself in one period and in half a period it ...
AP BIOLOGY - Mrs. Loyd`s Biology
... Lecture: “boom-and-bust” cycles, r- and K-selection, human population growth, age structures, ecological footprint. ...
... Lecture: “boom-and-bust” cycles, r- and K-selection, human population growth, age structures, ecological footprint. ...
Apparent competition with an invasive plant hastens the extinction of
... National Seashore, northern California, USA; Peromyscus maniculatus; population viability analysis; predispersal seed consumption; stochastic population model. ...
... National Seashore, northern California, USA; Peromyscus maniculatus; population viability analysis; predispersal seed consumption; stochastic population model. ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.