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44 Cards in this Set

  • Front
  • Back

which of the following is the best example of an ecosystem

community of organisms that live on a ponderosa tree

which of the following describes net primary production

total amount of biomass produced by only autotrophs after they have met their energetic needs

the relationship between primary production and actual evapotranspiration (AET) is a

positive linear correlation

in the experimental lake Area of Ontario Canada, what increased algal biomass and thus NPP

Nutrient addition

when looking at global marine environments, where is the highest NPP found

at the edge of continents

which of the following is not a form of biodiversity

all of the above are forms


(species, anatomical, genetic, physiological)

a study by David Tilman on the relationship between plant species diversity and total plant biomass showed that as the number of species in the plots increased the total biomass

increased

which of the following demonstrates bottom up control in an ecosystem

woody plants--> snowshoe Hare--> lynx

Relationship between Wet Meadows and Dry Medows

NPP was highest when both N & P were added together




the effect of adding N & P together in the dry meadows was greater than the sum of the individual effects that each nutrient had on its own

what is it called when the consumers affect the structure of the community or ecosystem

top down controls

what is is called when the effects of predators on prey that alter abundance, biomass, or productivity of a pop, community or trophic level across more than one link in the food web?

trophic cascade

The study on grazing by large mammals in the Serengeti found that

plots where the herbivores were excluded showed a decrease in plant biomass over time




intermediate grazing intensity produced the highest compensatory growth

Raymond Linderman coined this term as the transfer of energy from one part of the ecosystem to another (as from prey pop to predator population)

Trophic dynamics

since energy is lost at each trophic level, this limits which of the following

# of trophic levels




# of individuals at the top of the trophic level

which of the following would be a cause for primary succession

volcano creating new land




glacier receding

which of the following do high growth rates, smaller size, high degree of dispersal, and high rate of population growth characterizes

pionner species

which of the following was an example of secondary succesion

clear cut temperate forest of Peidmont plateau

the ecosystem changes occur during succession

All of the above


(primary production, total biomass, nutrient retention)

the model of succession in which early colonizing species are not limited to pioneer species is the

inhibition model




tolerance model

the model of succession in which early colonizing species make environment suitable for later successional species is the

facilitation model

in regards to succession, which of the following describes the combination of species which make the most efficient use of available resources and conditions.

climax community

which type of community or ecosystem would be the most stable

high resistance & high resilience

which of the following statements regarding the long term park grass experiment in England is TRUE?

the ratio of growth forms remained stable in both the unfertilized and fertilized plots

which of the following is NOT a technique described in the textbook as a method to enhance the restoration of disturbed areas

using bioremediation by microbes as a mean to remove toxins left behind from mine wastes.

which of the following describes the field of landscape ecology

all of the above

which of the following are considered when quantifying landscape structure

all of the above

a perimeter that is stable, permanent, and determined by a long-term natural feature or condition is called a

inherent edge

the term Ecotone refers to

zone of overlap between adjoining patches

edges are hotspots for biodiversity because

all of the above

which of the following is (are) effects of edge habitat

all of the above


borders are used (travel, to attract predators, to contain more micro habitats and niches)

the formula for S= P/2.... about landscape

gives information about the shape of patches on the landscape

in the study of landscape structure on the dispersal of small rodents the researchers found that

the proportion of individuals that moved increased as patch size increased

in the Glanville fritillary butterfly, the relationship between pop density and patch size was

negative

which of the following are causes of landscape structure origin and chnage

all of the above (geological processes, climate, fire)

Corridors are important in landscape ecology because they

provide additional habitats for plants and animals




permit travel of some organisms between patches

the ecology of lakes that are higher up on the landscape differ from that of lakes that are lower in elevation because

all of the above

an ecosystem engineer is best defined as

as organism that can cause changes in the environment that greatly impact the structure of the landscape.

which of the following is an example of an ecosystem engineer

african elephant




beavers

which of the following is the best example of geographic ecology

categorizing the distribution of plant species on a mountainside as you move from low to high elevations

the relationship b/w island size and species richness is

positive

the relationship b/w species richness and distance from the mainland or source population is

negative

the biogeographic gradient that shows a decrease in the number of species as you move from the tropics to higher latitudes is called the

species diversity cline

which of the following is NOT one of the hypotheses to explain the increased species richness seen in the tropics

species there have experienced more frequent large scale disturbances than those at higher latitudes so competitive dominance has not occurred.

although geographic area occupied by temperate deciduous forest is roughly the same size in Europe, East Asia, and Eastern North America, tree diversity is much higher in Asia. This is because

all of the above