Ecology
... The balance between birth rate, death rate and infant mortality (death in babies) is important in determining population growth rates. Age distribution (eg. The number of young or old members of a population) is also important. Lots of young in a population represents a high potential for population ...
... The balance between birth rate, death rate and infant mortality (death in babies) is important in determining population growth rates. Age distribution (eg. The number of young or old members of a population) is also important. Lots of young in a population represents a high potential for population ...
Species Niche
... Explain in three or less sentences why parasites are not considered predators beneath your list. ...
... Explain in three or less sentences why parasites are not considered predators beneath your list. ...
Geography of Evolution
... Within a biogeographic realm, the flora or fauna may be divided into provinces based on restricted distributions of species or groups of species. ...
... Within a biogeographic realm, the flora or fauna may be divided into provinces based on restricted distributions of species or groups of species. ...
Ch 6 - fieldbio
... • Potential impacts of invasive species • Ecological restoration • Terrestrial biomes ...
... • Potential impacts of invasive species • Ecological restoration • Terrestrial biomes ...
ecosystems change over time. Sometimes
... colder. It may become wetter or drier. Lakes or rivers may gradually form in areas that were once dry. When ecosystems change, the species that live there are influenced. Some organisms will have traits that allow them to live in the new environment. These organisms will survive and reproduce. They ...
... colder. It may become wetter or drier. Lakes or rivers may gradually form in areas that were once dry. When ecosystems change, the species that live there are influenced. Some organisms will have traits that allow them to live in the new environment. These organisms will survive and reproduce. They ...
Endangered Species teachers guide
... The pet trade and how/why this has effected animal species The concepts of pollution (air and water), habitat loss and destruction, and deforestation Introduce how animals can be our environmental indicators (specifically frogs and toads) When discussing the causes of endangerment, it is important t ...
... The pet trade and how/why this has effected animal species The concepts of pollution (air and water), habitat loss and destruction, and deforestation Introduce how animals can be our environmental indicators (specifically frogs and toads) When discussing the causes of endangerment, it is important t ...
Evolution & Natural Selection AND The Six Kingdoms of Life
... • Only so much food, water, light, and growing space are available to a population, and organisms compete with one another for the limited resources available to them. • Not all of the offspring will survive to reproductive age because there are more individuals than the environment can support • Mo ...
... • Only so much food, water, light, and growing space are available to a population, and organisms compete with one another for the limited resources available to them. • Not all of the offspring will survive to reproductive age because there are more individuals than the environment can support • Mo ...
Populations
... space, and have no competition or predators. For example, population explosions occur when bacteria or molds grow on a new source of food. ...
... space, and have no competition or predators. For example, population explosions occur when bacteria or molds grow on a new source of food. ...
ecology 2 - Mr. Davey`s Science!!!
... • Amensalism = a relationship in which one organism is harmed while the other is unaffected – Difficult to confirm, because usually one organism benefits from harming another – Allelopathy = certain plants release harmful chemicals ...
... • Amensalism = a relationship in which one organism is harmed while the other is unaffected – Difficult to confirm, because usually one organism benefits from harming another – Allelopathy = certain plants release harmful chemicals ...
What are the effects of the loss of an ecological niche?
... Like every other species, humans occupy their own ecological niche, although no animals rely on humans for food. However, humans do not serve a part in the food chain as they grow their own food. They do, however destroy food chains. ...
... Like every other species, humans occupy their own ecological niche, although no animals rely on humans for food. However, humans do not serve a part in the food chain as they grow their own food. They do, however destroy food chains. ...
Principles of Ecology
... • Relationship where there is a close and permanent association between organisms of different species. Three kinds: • Mutualism • Commensalism • parasitism ...
... • Relationship where there is a close and permanent association between organisms of different species. Three kinds: • Mutualism • Commensalism • parasitism ...
Powerpoint
... gone in two decades. Researchers say the ice fields on Africa’s highest mountain shrank by 80 percent in the past century. The snow cap formed some 11,000 years ago. The Landsat satellite captured these images of Kilimanjaro February 17, 1993 and ...
... gone in two decades. Researchers say the ice fields on Africa’s highest mountain shrank by 80 percent in the past century. The snow cap formed some 11,000 years ago. The Landsat satellite captured these images of Kilimanjaro February 17, 1993 and ...
5-4 How Do Communities and Ecosystems Respond to Changing
... result is that neither species can obtain as many resources as they could in the absence of the other species. ...
... result is that neither species can obtain as many resources as they could in the absence of the other species. ...
Why Ecology Matters - The University of Chicago Press
... Since cane toads are toxic in all their life history stages from eggs to tadpoles to toads, there was considerable worry during the 1990s and 2000s that their invasion shown in Figure 1.4 would cause massive mortality to predatory birds, reptiles, and mammals. Fortunately the impact of this toxic pe ...
... Since cane toads are toxic in all their life history stages from eggs to tadpoles to toads, there was considerable worry during the 1990s and 2000s that their invasion shown in Figure 1.4 would cause massive mortality to predatory birds, reptiles, and mammals. Fortunately the impact of this toxic pe ...
Invasive Plants
... of conditions, are easily dispersed, and are no longer limited by the diseases, predators, and parasites that kept their populations in check in their native range. Some non-native species have been introduced intentionally for a variety of reasons, including for food (e.g., agriculture crops and li ...
... of conditions, are easily dispersed, and are no longer limited by the diseases, predators, and parasites that kept their populations in check in their native range. Some non-native species have been introduced intentionally for a variety of reasons, including for food (e.g., agriculture crops and li ...
Chapter 4 - FacStaff Home Page for CBU
... Disclimax communities never reach the climax stage. Grasslands, the chaparral of southern California and some pine forests are maintained by periodic fires. The plants are adapted to resist fires. The dominant species in these fire-climax communities depend on periodic fires to eliminate competition ...
... Disclimax communities never reach the climax stage. Grasslands, the chaparral of southern California and some pine forests are maintained by periodic fires. The plants are adapted to resist fires. The dominant species in these fire-climax communities depend on periodic fires to eliminate competition ...
Introduction to Community Ecology
... flowering plants) of wetlands. Those plants (but not purple loosestrife) are important foods and habitat for waterfowl. As of 1997, three insect species from Europe have been approved by the U.S. Department of Agriculture for use as biological control agents. These plant-eating insects include a roo ...
... flowering plants) of wetlands. Those plants (but not purple loosestrife) are important foods and habitat for waterfowl. As of 1997, three insect species from Europe have been approved by the U.S. Department of Agriculture for use as biological control agents. These plant-eating insects include a roo ...
Evolution Worksheet #2
... 2) What is the definition of a Species? ______________________________________________________________________________ ______________________________________________________________________________ 3) An inherited characteristic that increases an organism’s ability to survive and reproduce in its sp ...
... 2) What is the definition of a Species? ______________________________________________________________________________ ______________________________________________________________________________ 3) An inherited characteristic that increases an organism’s ability to survive and reproduce in its sp ...
Chapter 4 Notes
... i. Mutations are random changes in the structure/number of DNA molecules in a cell. ii. Mutations occur in two ways. 1. Gene DNA is exposed to external agents like X-rays, chemicals (mutagens), or radioactivity. 2. Random mistakes that occur in coded genetic instructions. b. Natural selection: envir ...
... i. Mutations are random changes in the structure/number of DNA molecules in a cell. ii. Mutations occur in two ways. 1. Gene DNA is exposed to external agents like X-rays, chemicals (mutagens), or radioactivity. 2. Random mistakes that occur in coded genetic instructions. b. Natural selection: envir ...
Conservation Biology
... parasitoidism – Species need resources to survive and propagate – What does this view assume about community structure and niche availability? ...
... parasitoidism – Species need resources to survive and propagate – What does this view assume about community structure and niche availability? ...
Biodiversity Unit Review
... a. Heat, light and rainfall promote biodiversity, which in turn results in more plant species b. Heat, light and rainfall promote the growth of many different plants, which results in a more complex food chain and therefore more biodiversity c. An increase in rainfall promotes the growth of more pla ...
... a. Heat, light and rainfall promote biodiversity, which in turn results in more plant species b. Heat, light and rainfall promote the growth of many different plants, which results in a more complex food chain and therefore more biodiversity c. An increase in rainfall promotes the growth of more pla ...
vocabulary - Woodland Hills School District
... Threatened? Exotic? What are key characteristics of PA’s mammals? How are animal tracks used to survey animals? What is biodiversity? How do organism interact in an ecosystem What is fitness? How do adaptations influence survival? What are some examples of structural and behavioral ada ...
... Threatened? Exotic? What are key characteristics of PA’s mammals? How are animal tracks used to survey animals? What is biodiversity? How do organism interact in an ecosystem What is fitness? How do adaptations influence survival? What are some examples of structural and behavioral ada ...
Lecture #10 Slides
... Early successional species have no effect on later colonists, succession depends on dispersal capabilities and abiotic factors. ...
... Early successional species have no effect on later colonists, succession depends on dispersal capabilities and abiotic factors. ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.