Table of Contents
- 1 What conditions would contribute to a clumped dispersion pattern in an ecosystem?
- 2 What happens when an ecosystem is in equilibrium quizlet?
- 3 What are the two primary parameters used to describe a population?
- 4 What happens when an ecosystem is an equilibrium?
- 5 Which is the best description of primary succession?
- 6 Which is the Order of colonization in an ecosystem?
What conditions would contribute to a clumped dispersion pattern in an ecosystem?
Uniform patterns of dispersion are generally a result of interactions between individuals like competition and territoriality. Clumped patterns usually occur when resources are concentrated in small areas within a larger habitat or because of individuals forming social groups.
What might be the advantages of having a clumped dispersal pattern?
An advantage of a herd, community, or other clumped distribution allows a population to detect predators earlier, at a greater distance, and potentially mount an effective defense.
What might a decrease in the population density tell the scientist about the habitat in the area?
Ten years later, scientists return to the same area and find that the population density has declined to 5 deer per square kilometer. What might a decrease in the density of a deer population tell scientists about the habitat in the area? Population sizes decrease until the remaining resources can support them.
What happens when an ecosystem is in equilibrium quizlet?
What happens when an ecosystem is in equilibrium? Fires and floods.
What are the 3 types of spatial distribution?
Dispersion or distribution patterns show the spatial relationship between members of a population within a habitat. Individuals of a population can be distributed in one of three basic patterns: uniform, random, or clumped.
What are the three types of dispersion?
A specific type of organism can establish one of three possible patterns of dispersion in a given area: a random pattern; an aggregated pattern, in which organisms gather in clumps; or a uniform pattern, with a roughly equal spacing of individuals.
What are the two primary parameters used to describe a population?
Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume. Ecologists often estimate the size and density of populations using quadrats and the mark-recapture method.
What are three examples of limiting factors?
Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource.
What are the 4 factors that affect population growth?
Population growth is based on four fundamental factors: birth rate, death rate, immigration, and emigration.
What happens when an ecosystem is an equilibrium?
Equilibrium is the steady state of an ecosystem where all organisms are in balance with their environment and with each other. In equilibrium, any small changes to the system will be balanced by negative feedback, allowing the system to return to its original state.
What are 5 stages of primary succession?
The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
How do you explain spatial distribution?
A spatial distribution is the arrangement of a phenomenon across the Earth’s surface and a graphical display of such an arrangement is an important tool in geographical and environmental statistics.
Which is the best description of primary succession?
Primary succession, type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals first colonize a barren, lifeless habitat. Species that arrive first in the newly created environment are called pioneer species, and through their interactions they build…
Which is the first species in ecological succession?
Mosses and lichens are the first species that inhabit an area. They make the area suitable for the growth of larger species such as grasses, shrubs and finally trees. Read on to explore what is ecological succession and its types. “Ecological succession is a series of changes that occur in an ecological community over time.”
What is the sequence of biotic changes in secondary succession?
The sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area. Primary succession is the establishment and development of an ecosystem in an area that was previously uninhabited. Secondary succession is the reestablishment of a damaged ecosystem in an area where the soil was left intact.
Which is the Order of colonization in an ecosystem?
Succession is the order of colonization of species in an ecosystem from a barren or destroyed area of land. Mosses and lichens are the first species that inhabit an area. They make the area suitable for the growth of larger species such as grasses, shrubs and finally trees.