This document discusses key concepts in population ecology. It defines a population as a group of the same species living in the same area at the same time. Population size is influenced by factors like birth rate, death rate, and migration. There are three main patterns of dispersion: clumped, where individuals aggregate in patches; uniform, where individuals are evenly spaced; and random, where positioning is independent. The document also discusses social organization, noting that most mammals and birds are social to some degree, while some insect species exhibit advanced eusociality with specialized individual roles.
Growing Physical, Social and Cognitive Capacity: Engaging with Natural Environments
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Organic Edible Schoolyards & Gardening with Children =
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Double Food Production from your School Garden with Organic Tech =
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Free School Gardening Art Posters =
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Increase Food Production with Companion Planting in your School Garden =
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Healthy Foods Dramatically Improves Student Academic Success =
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City Chickens for your Organic School Garden =
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Simple Square Foot Gardening for Schools - Teacher Guide =
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A presentation in college Ecology about population functions of organisms. Includes hierarchical framework of population, interspecific and intraspecific relationships.
Growing Physical, Social and Cognitive Capacity: Engaging with Natural Environments
`
For more information, Please see websites below:
`
Organic Edible Schoolyards & Gardening with Children =
http://scribd.com/doc/239851214 ~
`
Double Food Production from your School Garden with Organic Tech =
http://scribd.com/doc/239851079 ~
`
Free School Gardening Art Posters =
http://scribd.com/doc/239851159 ~
`
Increase Food Production with Companion Planting in your School Garden =
http://scribd.com/doc/239851159 ~
`
Healthy Foods Dramatically Improves Student Academic Success =
http://scribd.com/doc/239851348 ~
`
City Chickens for your Organic School Garden =
http://scribd.com/doc/239850440 ~
`
Simple Square Foot Gardening for Schools - Teacher Guide =
http://scribd.com/doc/239851110 ~
A presentation in college Ecology about population functions of organisms. Includes hierarchical framework of population, interspecific and intraspecific relationships.
Sociobiology carries the assumption that the behavior is influenced by genes, though not rigidly determined by them; any behavior emerges through the interaction between the genes and environment. Edward O. Wilson brought the term (and the concept it represents) into both academic and popular usage with his 1976 book Sociobiology: The New Synthesis (Wilson 1976). Wilson was an ant biologist and had spent his career observing the much ramified social behavior of these insects, though his book extended to social behavior throughout the animal kingdom. The book was a synthesis of the existing work, clearly establishing how the evolutionary theory could be applied to the understanding of social behavior. It was a landmark in evolutionary biology and was resulted in two key shifts in the study of animal behavior. First, sociobiology’s mainly focuses is on the functional significance of behavior (Wilson et al., 2005). Previous work on the animal behavior, in the discipline of ethnology for example, had focused more on the mechanisms by which the behavior is brought about.
This course covers some details for nature and our life. Also there is described our interaction with nature like (forest, water, flowers, animals etc.). There are a lot of another information about this topic but this is a brief of the.
nature, in the broadest sense, is the natural, physical, or material world or universe, nature can refer to the phenomena of the physical world, and also to life in general. the study of nature is a large part if science. a though humans are part
Sociobiology carries the assumption that the behavior is influenced by genes, though not rigidly determined by them; any behavior emerges through the interaction between the genes and environment. Edward O. Wilson brought the term (and the concept it represents) into both academic and popular usage with his 1976 book Sociobiology: The New Synthesis (Wilson 1976). Wilson was an ant biologist and had spent his career observing the much ramified social behavior of these insects, though his book extended to social behavior throughout the animal kingdom. The book was a synthesis of the existing work, clearly establishing how the evolutionary theory could be applied to the understanding of social behavior. It was a landmark in evolutionary biology and was resulted in two key shifts in the study of animal behavior. First, sociobiology’s mainly focuses is on the functional significance of behavior (Wilson et al., 2005). Previous work on the animal behavior, in the discipline of ethnology for example, had focused more on the mechanisms by which the behavior is brought about.
This course covers some details for nature and our life. Also there is described our interaction with nature like (forest, water, flowers, animals etc.). There are a lot of another information about this topic but this is a brief of the.
nature, in the broadest sense, is the natural, physical, or material world or universe, nature can refer to the phenomena of the physical world, and also to life in general. the study of nature is a large part if science. a though humans are part
Dynamic biological process influence population density, dispersion a.pdfellanorfelicityri239
Dynamic biological process influence population density, dispersion and demographics
Distinguish between density and dispersion of population. Describe conditions that may result in
clumped dispersion, uniform dispersion, and random dispersion of individuals in a population.
What is a life table and why is it a useful tool for ecologists interested in population ecology?
Distinguish between a life table and a reproductive table. What does a reproductive table tell us?
Describe the characteristics of populations that exhibit Type I, Type II, and Type III survivorship
curves. Could you draw the expected survivorship curve if you were given characteristics of the
population? The exponential model describes population growth in an idealized, unlimited
environment and the elastic model describes how a population grows more slowly as it nears its
carrying capacity. Compare the exponential model of population growth with the logistic model.
What expectations do we have about exponential growth in natural populations? Under what
conditions might we expect to see natural populations increase exponentially? What can
modeling an organism\'s capacity to grow exponentially tell us about it? Explain how an
environment\'s carrying capacity affects the per capita rate of increase of a population. Explain
the meaning of each of the following terms in the logistics model of population growth: dN/dt,
t_max, K N, and (K - N)/K? Distinguish between r-selected populations and K-selected
populations Life history traits are products of natural selection What are life history traits?
What defines an organisms life history? Define and distinguish between semelparity and
iteroparity. Explain what factors may favor the evolution of each life history strategy.
Solution
Density of a population means the number of individuals present in one unit area. Dispersion
means in what manner they are dispersed or spread out in that area whether randomly distributed,
or in groups or evenly dispersed. In clumped dispersion,animals make groups to move and live
together. Often when there is shortage and scarcity of resources in summers, animals tend to
make groups to share resources.These groups can be safeguards for juveniles and can protect
them. Preying skills of few animals can benefit rest of the group in getting the food. In Uniform
dispersion all the animals are evenly distributed on the area and mostly independent to prey and
fight for their own food. They find mate according to their own choice and compatibility and
protect themselves alone. In random dispersion, the population is distributed randomly in the
area where there is mix of all three dispersion patterns. There is enough food in the viscinity,
animals can roam and search freely their food and also can form group. Life table is a table that
has data about death and birth rates of a population under study, that can give ecologists
prediction about probable growth or shrink of a population. It gives them the pattern of .
Population growth is the increase in the number of humans on Earth. For most of human history our population size was relatively stable. But with innovation and industrialization, energy, food, water, and medical care became more available and reliable.
Blue and White Professional Science Project Presentation.pdfYlexaGallano1
Ecology is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to understand the vital connections between plants and animals and the world around them.
Blue and White Professional Science Project Presentation.pdfYlexaGallano1
Hello Everyone! This for our Computer Science activity. Please help me by reacting and visiting my presentation about Science Ecology. This presentation is for educational purposes only. All rights reserved. No copyright infringement intended.
Submitted by: Ylexa Jham Gallano (Grade 8 Red Lauan, STE, KCNHS)
Submitted to: Rominic C. Cheng (Computer Science Teacher)
2. population ecology
Population
ecology is the study of
population in relation to
environment, including environmental
influence on density and distribution, age
structure and population size.
3. important terms
Population
is the a group of individuals of
the same species, living in the same
area, at he same time.
Density is the total number of individual
per unit area.
Dispersion is the pattern amongst
individuals within boundaries of the
population
6. 2. PATTERNS OF DISPERSION
Environmental and social factors influence spacing of
individuals in a population:
1. In a clumped dispersion, individuals
aggregate in patches. A clumped dispersion may
be influenced by resource availability and behaviour.
2.
A uniform dispersion is one in which
individuals are evenly distributed. It may be
influenced by social interactions such as
territoriality
3.
In a random dispersion, the position of each
individual is independent of other individuals.
It occurs in the absence of strong attractions or
repulsions.
7. Social organization
An organism that is highly interactive with other
members of its species is said to be a social
animal.
All mammals (and birds) are social to the extent
that mothers and offspring bond.
A few species, notably insects (ants, bees wasps
and termites) show an extreme form of
sociality, involving highly organized
societies, with individual organisms specialized
for distinct roles.
This form of social behaviour is referred to as
eusociality.
Clumped dispersion – e.g. sea starsUniform dispersion – e.g. king penguinsRandom dispersion – e.g. dandelions grow from windblown seeds that land at randomMost populations show at least a tendency toward a clumped distribution