Species richness refers to Group of answer choices a. number of species in a community b. how even in abundance the species in a community are c. extinction rate of species d. number of trophic interactions in a food web e. number of species plus evenness of numbers of individuals

Q: Why does the aquarium trade contribute to the introduction of nonnative species?

A: Nonnative species An introduction of new species, foreign species, exotic species, alien species,…

Q: List at least 5 abiotic factors and explain how they can affect the populations of different species…

A: An ecosystem (or ecological system) is made up of all the organisms that interact with the physical…

Q: One characteristic that distinguishes a populationin an extinction vortex from most otherpopulations…

A: In a given population extinction vortex can be defined as  the major reduction in the size of a…

Q: Ecological dominants are a. the most numerous or make up the most biomass within a community.   b.…

A: Ecology is the study of the interactions between living organisms, such as humans, and their…

Q: According to the competitive exclusion principle,a. one species is always more competitive than…

A: Answer is c)  no two species can occupy the same niche at the same time.

Q: Which is NOT a characteristic of a biodiversity hotspot?  A. High species biodiversity B. High urban…

A: Biodiversity hotspots are those regions of rich biodiversity which have been declared sensitive due…

Q: Which of the following could qualify as a bottom-up control on a grassland community? (A) limitation…

A: Ecosystem: It is a collaboration of living organisms such as plants and animals with non-living…

Q: Studies that demonstrate that species living in an ecological community change independently of one…

A: Answer is b.)  indicates that tgeespecies realized niches are regulated by different aspects of the…

Q: By a currently favored hypothesis, species richness of a community is greatest when physical…

A: Species is the basic unit of classification of an organism. In 18th-century naturalist, Carl…

Q: 55. Ecology can best be defined as the scientific study of ________.   A. the environmental…

A: Ecosystem is defined as the complex interaction between biotic and abiotic components of the…

Q: Inthe Lotka-Volterra predation model, a prey (host) population in the absence ofpredators…

A: Lokta Volterra model is the simplest model of predator and prey interactions. This model is…

Q: Conservationists will take snow geese off the endangered species list when the population hits…

A: The unlimited resources are found in exponentially and continuously growing species.

Q: Keystone species: Select an answer and submit. For keyboard navigation, use the up/down arrow keys…

A: Indicator species give us the warming about the harmful changes occurring in the community while…

Q: The presence of one species (A) in a community may benefit another species (B) if a. a…

A: Species interactions are necessary in a community. Interactions can be inter-specific [between two…

Q: When coyotes were removed from the community in Texas, several species of rodent disappeared while…

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

Q: Which of the following could qualify as a top-down control ona grassland community?(A) limitation of…

A: In an ecosystem, there are two types of controls on a population. The bottom-up control is the…

Q: Which species richness represents a larger island that is farther from the mainland? The red lines…

A: New immigrants to the island primarily come from the mainland. Since closer islands are simpler to…

Q: there is a corresponding decrease in the population growth rates of crickets.  As adult crickets…

A: Competition is described as the interaction between organisms that must compete for limited…

Q: Which of the following statements best represents the productivityhypothesis regarding species…

A: Species richness defines the number of species present in the community and it gives the measurement…

Q: The number of carnivores found at the top of an ecological pyramid is limited by thea. number of…

A: The flow of energy can be represented in the form of a network of the food chain and food web in an…

Q: The process of species replacement over time in a community is called (a) global climate change. (b)…

A: Answer is option B.) Succession.

Q: Why do moderate levels of disturbance result in an increase in community diversity?a) The resulting…

A: Ecological succession is a gradual process that happens in the environment and  in a given species…

Q: Which activity would be most likely categorized as restoration ecology?   a. Counting the number of…

A: RESTORATION ECOLOGY:- It helps in repairing the damage caused by the human that has destroyed the…

Q: Insect communities were surveyed in either the high or low canopy of a tropical forest. The…

A: This question is based on the Shannon diversity index. It is commonly used to characterize species…

Q: The biggest impacts are made on the environment by: * A. The migration of organisms B. Predation C.…

A: Environment is the condition or surroundings of a living organism in which it lives. Environment is…

Q: Consider the following hypothetical communities in a desert landscape sa Then answer the questions…

A: The term diversity refers to the state of being unique or diverse. The term "diversity" can be found…

Q: Which of the following could qualify as a bottom-up control on a grassland community?  (A)…

A: Answer. The bottom-up control model proposes a unidirectional influence from lower to higher trophic…

Q: Which of the following is the definition for species richness?   A. The number of species in a…

A: When a group of living organisms comprises the same type of individuals, who are able to exchange…

Q: Two species of aquatic snails live in a nearby creek. Species A is a very strong competitor of…

A: Answer. The fundamental niche is the maximum theoretical inhibited hypervolume where a species, free…

Q: Predators that are keystone species can maintain species diversity in a community if theya) reduce…

A: Generally, predators consume prey with broader impacts on communities as a whole. It helps to…

Q: Ronald Ross’s major contribution to the development of ecological science was… a. the creation of a…

A: Ronald Ross was a Nobel Prize winner medical doctor based in Britain and was presented with a Nobel…

Q: Which of the following statements about keystone species is false? a) Keystone species are the most…

A: Within a particular ecosystem different species are present that interact with each other and forms…

Q: When two different species overlap in the same biological niche, they are a in competition with one…

A: The n-dimensional niche was first proposed by Hutchinson in 1957. According to Hutchinson, a niche…

Q: Biodiversity hotspotsa. have few populations because the temperature is too hot.b. contain about 20%…

A: A biodiversity hotspot is a region with a high concentration of endemic species, that is, species…

Q: According to the principle of competitive exclusion, what outcome is expected when two species with…

A: The two competitors have a slight advantage over the other and leads to the extinction of the second…

Q: The fundamental unit of ecology is the    A. Ecosystem    B. Biosphere C. Population  D.Species

A: Ecology is the branch of biology that deals with the interaction of organisms to one another and to…

Q: a) A population of mussels that have their population size regulated via starfish predation   b)…

A: Given:

Q: If you had to monitor an ecosystem for evidence of pollution, what are one or two indicator species…

A: Ecosystem monitoring for pollution level detection is usually carried out by the indicator species.…

Q: Which of the following best describes a keystone species? a. An organism, whose introduction causes…

A: Ecosystem processes are driven by the species in an ecosystem, the nature of the single species, and…

Q: Which aspect(s) of biodiversity is/are impacted by each example? Explain your reasoning. Bottleneck…

A: As per our guidelines, we are supposed to answer only three sub-parts. Kindly repost the question…

Q: If the slope on a rank abundance curve is m = 0, the species diversity in the community will be?

A: X axis in the rank abundance curve represents the abundance rank and Y axis represents the…

Q: The principle of competitive exclusion states that(A) two species cannot coexist in the same…

A: The rational position of a species in an ecosystem is defined as ecological niche. As it mainly…

Q: In Alaska Orcas (Killer Whales) have recently started eating sea otters in large numbers.…

A: Ecology is the study of interaction of organisms with one another and with the environment. Ecology…

Q: The number of different classes that are represented in a given community. The effective number of…

A: An ecosystem is a natural community of living beings that deals with the external environment and…

Q: B. The habitat where a species actually lives and the resources it consumes when it is dealing with…

A: In terms of ecology, habitat of the organism defines 'where' an organism lives, while the niche…

Q: When interspecific competition is weaker than intraspecific competition for both species A & B in…

A: Competition is an interaction between organisms or species in which both the organisms or species…

Q: Communities are defined by? A). Species whose ranges overlap B). Species that have the same ranges…

A: In ecology species is the unit that form the population. The study of population and community is…

Q: An ecologist studying several forest dwelling, insect eating bird species does not find any evidence…

A: Individuals in the community interact with each other and the non-living components of their…

Q: The Burmese Python, an invasive species, has been introduced to the Florida Everglades, largely…

A: Introduction An invasive species is a species that is not native to a particular area. An invasive…

Communities and Ecosystems

Ecology contains two words: Eikos means dwelling, and logy means to study, so the combined meaning is studying habitat or living.