Final Exam #4
... answer in the space provided. Please feel free to ask me to clarify any question. (2 points each, 70 total) ___1. The size of a population that is growing logistically ______. A. has a high rate of increase B. increases fastest at intermediate densities C. is always growing slowly D. increases faste ...
... answer in the space provided. Please feel free to ask me to clarify any question. (2 points each, 70 total) ___1. The size of a population that is growing logistically ______. A. has a high rate of increase B. increases fastest at intermediate densities C. is always growing slowly D. increases faste ...
Disturbance Ecology
... In fact, the idea of a climax community and equilibrium conditions has been all but annihilated in the ecological literature. Clements has been over-simplified and is now something of a joke. As an ecologist it is a bit embarrassing to be caught in something that smacks of being Clementsian! Many h ...
... In fact, the idea of a climax community and equilibrium conditions has been all but annihilated in the ecological literature. Clements has been over-simplified and is now something of a joke. As an ecologist it is a bit embarrassing to be caught in something that smacks of being Clementsian! Many h ...
Scientific Method For centuries, people based their beliefs on their
... Recipe for bees: Kill a young bull, and bury it in an upright position so that its horns protrude from the ground. After a month, a swarm of bees will fly out of the corpse. Recipe for mice: Place a dirty shirt or some rags in an open pot containing a few grains of wheat, and in 21 days adult mice w ...
... Recipe for bees: Kill a young bull, and bury it in an upright position so that its horns protrude from the ground. After a month, a swarm of bees will fly out of the corpse. Recipe for mice: Place a dirty shirt or some rags in an open pot containing a few grains of wheat, and in 21 days adult mice w ...
BIO102-Ecology Part 4-Ch.57B
... • 50% of chemical-bond energy is not assimilated and is egested in feces • 33% of ingested energy is used for cellular respiration • 17% ingested energy is converted into insect biomass ...
... • 50% of chemical-bond energy is not assimilated and is egested in feces • 33% of ingested energy is used for cellular respiration • 17% ingested energy is converted into insect biomass ...
Chapter 4. Causes for Biodiversity Loss
... Caribbean coral reefs have suffered massive loss of cover. The latest scientific review (Status and Trends of Caribbean Coral Reefs 2013) states ”Coral cover has declined by more than 80% since the 1970s, virtually all the large fishes, sharks and turtles are gone”. The consequences include widespre ...
... Caribbean coral reefs have suffered massive loss of cover. The latest scientific review (Status and Trends of Caribbean Coral Reefs 2013) states ”Coral cover has declined by more than 80% since the 1970s, virtually all the large fishes, sharks and turtles are gone”. The consequences include widespre ...
inoculants - Johnny`s Selected Seeds
... convert atmospheric nitrogen to ammonia nitrogen. Atmospheric nitrogen is plentiful but unavailable for plant growth. Ammonia nitrogen is readily used by growing plants. Inoculation is the process of introducing Rhizobia bacteria to the legume seed which stimulates the formation of nitrogen-producin ...
... convert atmospheric nitrogen to ammonia nitrogen. Atmospheric nitrogen is plentiful but unavailable for plant growth. Ammonia nitrogen is readily used by growing plants. Inoculation is the process of introducing Rhizobia bacteria to the legume seed which stimulates the formation of nitrogen-producin ...
Ch_50 Intro to Ecology
... Desert~ sparse rainfall (<30cm/yr) Chaparral~ spiny evergreens at midlatitudes along coasts Temperate grassland~ all grasses; seasonal drought, occasional fires; large mammals Temperate deciduous forest~ midlatitude regions; broad-leaf deciduous trees Coniferous forest~ cone-bearing trees Tundra~ pe ...
... Desert~ sparse rainfall (<30cm/yr) Chaparral~ spiny evergreens at midlatitudes along coasts Temperate grassland~ all grasses; seasonal drought, occasional fires; large mammals Temperate deciduous forest~ midlatitude regions; broad-leaf deciduous trees Coniferous forest~ cone-bearing trees Tundra~ pe ...
EAT_working_for_water
... No studies have looked at effects of alien vegetation on biodiversity as a whole. The effects of fire have been well researched. The deleterious effects of fire are increased with ...
... No studies have looked at effects of alien vegetation on biodiversity as a whole. The effects of fire have been well researched. The deleterious effects of fire are increased with ...
Ecosystems and Biomes
... (proteins and nucleic acids). Air is about 78% nitrogen gas (N2). That’s where most of the nitrogen hangs out. Most organisms can’t use atmospheric (free) nitrogen as is. They need it changed into nitrogen compounds. Plants need their nitrogen "fixed", which means as part of compounds such as: ammon ...
... (proteins and nucleic acids). Air is about 78% nitrogen gas (N2). That’s where most of the nitrogen hangs out. Most organisms can’t use atmospheric (free) nitrogen as is. They need it changed into nitrogen compounds. Plants need their nitrogen "fixed", which means as part of compounds such as: ammon ...
Bio103_37_Learning_Targets
... b. removes significant amounts of soil. 3. Ecological succession results from colonization by a variety of species, which are replaced by a succession of other species. 4. Primary succession begins in a virtually lifeless area with no soil. 5. Secondary succession occurs when a disturbance destroys ...
... b. removes significant amounts of soil. 3. Ecological succession results from colonization by a variety of species, which are replaced by a succession of other species. 4. Primary succession begins in a virtually lifeless area with no soil. 5. Secondary succession occurs when a disturbance destroys ...
Biodiversity - Mr. Fouts' Home Page
... upper atmosphere, shields Earth from UVB radiation – Chlorofluorocarbons (CFC’s) lighter than air, rise to upper atmosphere, where they stick to ice crystals; each molecule able to destroy many ozone molecules (most during summer); Antarctic ozone hole detected in 1985, Arctic ozone hole detected in ...
... upper atmosphere, shields Earth from UVB radiation – Chlorofluorocarbons (CFC’s) lighter than air, rise to upper atmosphere, where they stick to ice crystals; each molecule able to destroy many ozone molecules (most during summer); Antarctic ozone hole detected in 1985, Arctic ozone hole detected in ...
webinar presentation
... Adopted management and fertility practices that enhanced microbial activity Production of on farm Humus Compost™ from agricultural waste and intensive animal husbandry. Reduced the use of soluble fertilisers in cropping by 50%, added carbon to buffer any ...
... Adopted management and fertility practices that enhanced microbial activity Production of on farm Humus Compost™ from agricultural waste and intensive animal husbandry. Reduced the use of soluble fertilisers in cropping by 50%, added carbon to buffer any ...
The Nitrogen cycle
... need nitrogen, phosphorus and potassium that we can find in fertilizers. So it’s convenient that 80% of our atmosphere in nitrogen gas! BUT… plants aren’t capable of absorbing nitrogen directly from the ...
... need nitrogen, phosphorus and potassium that we can find in fertilizers. So it’s convenient that 80% of our atmosphere in nitrogen gas! BUT… plants aren’t capable of absorbing nitrogen directly from the ...
ecosystems - Walton High School
... Nitrification: Nitrifying bacteria in the soil change ammonia or ammonium first into nitrite then into nitrate Denitrification: process by which anaerobic bacteria change nitrates back into nitrogen gas ...
... Nitrification: Nitrifying bacteria in the soil change ammonia or ammonium first into nitrite then into nitrate Denitrification: process by which anaerobic bacteria change nitrates back into nitrogen gas ...
Ecology
... • Survival of the fittest – Numbers cannot go higher because there are limited resources. – If an invasive species is present, could result in extinction or severe lowering in the numbers of other species due to lack of predators for the invasive species! ...
... • Survival of the fittest – Numbers cannot go higher because there are limited resources. – If an invasive species is present, could result in extinction or severe lowering in the numbers of other species due to lack of predators for the invasive species! ...
PowerPoint - Bryn Mawr School Faculty Web Pages
... starting with the collection of water in lakes or oceans. ______ 1. Water is absorbed by plants growing in the soil and used for ...
... starting with the collection of water in lakes or oceans. ______ 1. Water is absorbed by plants growing in the soil and used for ...
trophic level
... • Solar energy – primary energy source (fig 3.5, p. 42) Of incoming solar radiation: 66% absorbed 34% reflected (albedo) ...
... • Solar energy – primary energy source (fig 3.5, p. 42) Of incoming solar radiation: 66% absorbed 34% reflected (albedo) ...
What Else Changes the Environment?
... flood, fire, earthquake, mudslide, hurricane or volcanic eruption can instantly change an environment and kill the communities that live there. If this happens, a new community will replace the old community over time. This is called succession. An example of succession is when a field is left untou ...
... flood, fire, earthquake, mudslide, hurricane or volcanic eruption can instantly change an environment and kill the communities that live there. If this happens, a new community will replace the old community over time. This is called succession. An example of succession is when a field is left untou ...
Ecosystems - Manasquan Public Schools
... • Non-living parts of an ecosystem –Temperature, sunlight, humidity, water supply, soil type, mineral nutrients ...
... • Non-living parts of an ecosystem –Temperature, sunlight, humidity, water supply, soil type, mineral nutrients ...
Ecology PowerPoint
... Phosphorus exists mainly in _____ and _____ minerals and in ocean sediments as _____. Phosphorus found in the nucleic acids _____ and _____ Aquatic: Phosphates dissolved by _____ phosphorus goes into bodies of _____ organisms consume the _____. Terrestrial: Phosphorus is taken up by _____; animals ...
... Phosphorus exists mainly in _____ and _____ minerals and in ocean sediments as _____. Phosphorus found in the nucleic acids _____ and _____ Aquatic: Phosphates dissolved by _____ phosphorus goes into bodies of _____ organisms consume the _____. Terrestrial: Phosphorus is taken up by _____; animals ...
Chapter 3 Powerpoint Notes
... 1. Volcanoes, respiration, fossil fuels, and decomposition add CO2 to atmosphere. 2. Plants take CO2 and make carbohydrates 3. Plants are eaten by animals and carbohydrates are passed through the food chain. 4. As the animal breathes and eventually dies and decomposes CO2 is return to atmosphere. ...
... 1. Volcanoes, respiration, fossil fuels, and decomposition add CO2 to atmosphere. 2. Plants take CO2 and make carbohydrates 3. Plants are eaten by animals and carbohydrates are passed through the food chain. 4. As the animal breathes and eventually dies and decomposes CO2 is return to atmosphere. ...
Human impact on the nitrogen cycle
Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation. As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over the past century. Global atmospheric nitrous oxide (N2O) mole fractions have increased from a pre-industrial value of ~270 nmol/mol to ~319 nmol/mol in 2005. Human activities account for over one-third of N2O emissions, most of which are due to the agricultural sector. This article is intended to give a brief review of the history of anthropogenic N inputs, and reported impacts of nitrogen inputs on selected terrestrial and aquatic ecosystems.