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Study Guide for Ecology Test 1 - Mercer Island School District
Study Guide for Ecology Test 1 - Mercer Island School District

... Be able to explain what a boom and bust population pattern is (graph on page 417) and why this pattern might exist between a predator and it prey. Be able to explain what biomagnafication is and why it occurs in higher trophic levels (higher on the food chain). Be sure that you understand that top c ...
Definitions of terms relating to biological diversity
Definitions of terms relating to biological diversity

... respect to the displacements of an organism, but not so large that all its movements would typically take place within a single patch Cold seep: (np) place where fluids at nearly ambient temperature seep from the deep sea floor Colonize: (v) establish a colony Colony: (n) a community of organisms of ...
Improving agroforestry systems in the humid tropics
Improving agroforestry systems in the humid tropics

... Cocoa- and coffee-based agroforestry systems are traditional production systems, which function in much the same way as forest. Compared to monoculture systems, they produce less cocoa or coffee, but they are more sustainable and environmentally friendly, since they are less intensive in terms of pe ...
PART
PART

... 1. Energy flows through organisms and is used to construct and maintain organisms at several levels. 2. Primary producers, usually green plants, fix and store energy, usually from sunlight. 3. Herbivores are the first level of consumers that eat plants. 4. Carnivores eat herbivores (forming a second ...
3 The Role of Top Carnivores in
3 The Role of Top Carnivores in

March - Chicago Herpetological Society
March - Chicago Herpetological Society

... by people fishing for yellow perch or burbot. These large amphibians are often caught around the channel that connects Presque Isle Bay to Lake Erie. Unfortunately, fishermen often do not put them back into the water unharmed. In addition to incidental catches by fishermen, dead mudpuppies have been ...
Materials and Methods - Smithsonian Tropical Research Institute
Materials and Methods - Smithsonian Tropical Research Institute

Dabbling Ducks - University of Maryland Extension
Dabbling Ducks - University of Maryland Extension

Enemy free space and the structure of ecological
Enemy free space and the structure of ecological

... that are traditionally reviewed as components of their niche, (body size, feeding stations, feeding methods, etc.), have been influenced, not by competitors, but by natural enemies. Although all ecologists recognize that this must be so, many continue to act and write as though classical resource-ba ...
Assessing the diversity, abundance and
Assessing the diversity, abundance and

Effect of diffuse and point source nutrient supply on the low diverse
Effect of diffuse and point source nutrient supply on the low diverse

Mr. Babak - Marion County Public Schools
Mr. Babak - Marion County Public Schools

... photosynthetic organisms, including green plants and algae, through herbivores, to carnivores, and finally decomposers. There is a decrease in the overall energy in each level as you move up the food web. This means that there is much more energy in the producer level in a food web than at the consu ...
Large Marine Carnivores: Trophic Cascades and Top
Large Marine Carnivores: Trophic Cascades and Top

... Carnivores are predators that consume animals; herbivores are predators that consume plants. The effect of consumers on prey populations is measured as “interaction strength” (Paine 1980, 1992), which depends on more than just its abundance. We define per capita interaction strength as the effect of ...
File - Mr. Greening`s Science
File - Mr. Greening`s Science

... 51. What would most likely occur after an ecosystem is disrupted by fire? A) The ecosystem would eventually return to its original state. B) The ecosystem would return to its previous state immediately. C) The ecosystem would evolve into a new ecosystem that is totally different from the ...
A comparison of survival strategies in the extreme environment
A comparison of survival strategies in the extreme environment

... Species living on the Antarctic continent and its surrounding oceans have had to adapt to live in the extreme environment. These adaptations are specialised strategies that species have evolved to aid survival by increasing reproductive success and lifespan of the individual and have occurred over g ...
Healthy Aquatic Ecosystems
Healthy Aquatic Ecosystems

... disturbance so as to retain essentially the same structure, processes and functions. When an ecosystem is disturbed and can still remain within the natural range of variability, it can be described as resilient. Aquatic ecosystems vary greatly in their inherent resilience to disturbance; some ecosys ...
Primary consumers
Primary consumers

... • One example is the mutualistic relationship of coral animals and the unicellular algae that live inside their cells. – The coral gains energy from the sugars produced by the algae. – The algae gain ...
Declining amphibian populations and possible ecological
Declining amphibian populations and possible ecological

MANGROVE FOREST STRUCTURE ON THE SITTEE RIVER, BELIZE
MANGROVE FOREST STRUCTURE ON THE SITTEE RIVER, BELIZE

... height (DBH) were measured. Basal area of each tree was calculated with the formula for a circle (area = 3.1416 x r^2, were r is the radius or one half of the DBH). Height of the tallest tree in each quadrat plot was measured with a Haga altimeter during sampling in 1998. The forest at the mouth of ...
study regarding the olt river (romania)
study regarding the olt river (romania)

... consequences, such as «blooms» of Cyanobacteriophyta. This process is facilitated by the low depth and low amount of water, as well as by minimum movement. Water quality deteriorates due to continuous faecal pollution, particularly with the Clostridium perfrigens species (Ćurčić and Čomić 2002). The ...
Teacher: Jeannie Sparks Grade: 12th e. Science For the Week of
Teacher: Jeannie Sparks Grade: 12th e. Science For the Week of

... cycles and evaluate the effects of abiotic factors on the local ecosystem. ...
Question Paper
Question Paper

... soil contains water, air and plant nutrients (a) (i) ...
Ecology Basics - The Science Spot
Ecology Basics - The Science Spot

... The producers are always at the beginning of the food chain, bringing energy into the ecosystem. Through photosynthesis, the producers create their own food in the form of glucose, but also create the food for the other organisms in the ecosystem. The herbivores come next, then the carnivores. When ...
presence and prevalence of bd - The Center for North American
presence and prevalence of bd - The Center for North American

Individual and interactive effects of salinity and initial fish density on
Individual and interactive effects of salinity and initial fish density on

... the marsh pools can also be spatially and temporally heterogeneous, depending for example on such factors as the potential for competitive or predatory interactions and the presence of cover in the form of vegetation. Thus, investigations concerning the charactenstics of marsh pool communities shoul ...
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Lake ecosystem

A lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions.Lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or relatively still water, from the Latin lentus, which means sluggish. Lentic waters range from ponds to lakes to wetlands, and much of this article applies to lentic ecosystems in general. Lentic ecosystems can be compared with lotic ecosystems, which involve flowing terrestrial waters such as rivers and streams. Together, these two fields form the more general study area of freshwater or aquatic ecology. Lentic systems are diverse, ranging from a small, temporary rainwater pool a few inches deep to Lake Baikal, which has a maximum depth of 1740 m. The general distinction between pools/ponds and lakes is vague, but Brown states that ponds and pools have their entire bottom surfaces exposed to light, while lakes do not. In addition, some lakes become seasonally stratified (discussed in more detail below.) Ponds and pools have two regions: the pelagic open water zone, and the benthic zone, which comprises the bottom and shore regions. Since lakes have deep bottom regions not exposed to light, these systems have an additional zone, the profundal. These three areas can have very different abiotic conditions and, hence, host species that are specifically adapted to live there.
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