Community Ecology and Ecosystems
... The variety of organisms that make up the community Two components: 1) Species richness is the total number of different species in the community 2) Relative abundance is the proportion each species represents of the total individuals in the community ...
... The variety of organisms that make up the community Two components: 1) Species richness is the total number of different species in the community 2) Relative abundance is the proportion each species represents of the total individuals in the community ...
DOC - Universität Basel
... steepness of slope, mountain aspect, vegetation type and distance to permanent freshwater sources. The anthropogenic impact on the mammalian wildlife was estimated by attributing covariates to the trapping stations like distance to settlement, distance to public hiking trails and habitat transformat ...
... steepness of slope, mountain aspect, vegetation type and distance to permanent freshwater sources. The anthropogenic impact on the mammalian wildlife was estimated by attributing covariates to the trapping stations like distance to settlement, distance to public hiking trails and habitat transformat ...
hawaii
... expeditions led by Captain James Cook and other sea captains. Since that time, many of these mammals have become feral (i.e., though once domesticated, they no longer depend on humans). Your assignment, as a class, is to develop an understanding of the problems associated with the introduction of th ...
... expeditions led by Captain James Cook and other sea captains. Since that time, many of these mammals have become feral (i.e., though once domesticated, they no longer depend on humans). Your assignment, as a class, is to develop an understanding of the problems associated with the introduction of th ...
ARE ALIEN PLANTS THE ECOLOGICAL EQUIVALENTS OF
... EQUIVALENTS OF NATIVES? Meg Ballard, Judith Hough-Goldstein, and Douglas W. Tallamy Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19717 ...
... EQUIVALENTS OF NATIVES? Meg Ballard, Judith Hough-Goldstein, and Douglas W. Tallamy Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19717 ...
lewiss woodpecker
... Distribution: Elevations: 250-1160 m A migratory species, Lewis’s Woodpecker historically ranged from southeastern Vancouver Island and the lower Fraser Valley of southwestern British Columbia through the Gulf and San Juan Islands to the Puget Trough of western Washington (BC Conservation Data Cente ...
... Distribution: Elevations: 250-1160 m A migratory species, Lewis’s Woodpecker historically ranged from southeastern Vancouver Island and the lower Fraser Valley of southwestern British Columbia through the Gulf and San Juan Islands to the Puget Trough of western Washington (BC Conservation Data Cente ...
Swainson`s Warbler Best Management Practices
... practices. It is not intended to be used as a guide to manage habitat for a given species. If that is the goal, please contact the Department of Conservation for habitat management information. Because every project and location differs, following the recommendations within this document does not en ...
... practices. It is not intended to be used as a guide to manage habitat for a given species. If that is the goal, please contact the Department of Conservation for habitat management information. Because every project and location differs, following the recommendations within this document does not en ...
Fishes in the forest: High biodiversity and endemism
... fauna. His work has revealed that the Wet Tropics region sustains a very high diversity of fishes, parallel to that seen among the birds, mammals or insects of the terrestrial environment. In addition, the Wet Tropics region contains many species not found anywhere else in the world. ...
... fauna. His work has revealed that the Wet Tropics region sustains a very high diversity of fishes, parallel to that seen among the birds, mammals or insects of the terrestrial environment. In addition, the Wet Tropics region contains many species not found anywhere else in the world. ...
BIO 1C Study Guide 3: short distance flow, xylem and phloem flow
... What (specifically) is driving the collapse of the kelp forest ecosystem in the Aleutian islands? Be able to ...
... What (specifically) is driving the collapse of the kelp forest ecosystem in the Aleutian islands? Be able to ...
Description
... protection from the environment and cover from predation. Like many rodents, D. azarae, will freeze and remain motionless when threatened. If the animal feels that the danger is too close, it will run in a zigzag fashion into cover (Brazilian Fauna.com). This sudden bust of speed usually catches the ...
... protection from the environment and cover from predation. Like many rodents, D. azarae, will freeze and remain motionless when threatened. If the animal feels that the danger is too close, it will run in a zigzag fashion into cover (Brazilian Fauna.com). This sudden bust of speed usually catches the ...
Introduced Species on Island - ScholarSpace
... resistance posed by island biotas and island birds (Scott et al. 1986). But habitat restricspecies were generally less competitive, one tions surely greatly reduce potential comwould expect mainland-to-island introduc- petition between introduced species and nations to have survived far more frequen ...
... resistance posed by island biotas and island birds (Scott et al. 1986). But habitat restricspecies were generally less competitive, one tions surely greatly reduce potential comwould expect mainland-to-island introduc- petition between introduced species and nations to have survived far more frequen ...
Catalina Island Giants and Dwarfs By the Catalina Island
... is different on Catalina than on the mainland, equilibrium here is different, too. For squirrels, bigger was better. But why do some species get big and others small? Let's take a look at the Catalina Island fox, an actual dwarf. A lot of the same factors that favored big squirrels and big quail on ...
... is different on Catalina than on the mainland, equilibrium here is different, too. For squirrels, bigger was better. But why do some species get big and others small? Let's take a look at the Catalina Island fox, an actual dwarf. A lot of the same factors that favored big squirrels and big quail on ...
what is a community? What is community ecology?
... LEVINS & LEWONTIN: “a contingent whole in reciprocal interaction with the lower and higher level wholes, and not completely determined by them” RICKLEFS: “an association of interacting populations, usually defined by the nature of their interactions or the place in which they live” MacMAHON ET AL.: ...
... LEVINS & LEWONTIN: “a contingent whole in reciprocal interaction with the lower and higher level wholes, and not completely determined by them” RICKLEFS: “an association of interacting populations, usually defined by the nature of their interactions or the place in which they live” MacMAHON ET AL.: ...
chapter 18_lecture
... Kudzu vine was introduced in the southeastern U.S. to control erosion. It has taken over native species habitats. ...
... Kudzu vine was introduced in the southeastern U.S. to control erosion. It has taken over native species habitats. ...
Desert
... stronger picture of what country supports threatened species around these communities. This work is also reinforcing the importance of particular ecological communities for the Ranger teams, such as the ecological communities further out from Punmu at Lake Auld and Lake Dora, as well as the paleo-dr ...
... stronger picture of what country supports threatened species around these communities. This work is also reinforcing the importance of particular ecological communities for the Ranger teams, such as the ecological communities further out from Punmu at Lake Auld and Lake Dora, as well as the paleo-dr ...
Biodiversity - Max-Planck
... that were studied – are threatened with extinction. Among vertebrates, for example, one in eight birds, one in five mammals and one in three amphibian species were considered at risk; 277 known species (excluding fish) have already disappeared in the last few hundred years, but not one single new sp ...
... that were studied – are threatened with extinction. Among vertebrates, for example, one in eight birds, one in five mammals and one in three amphibian species were considered at risk; 277 known species (excluding fish) have already disappeared in the last few hundred years, but not one single new sp ...
realized ecological niches composition along plant succession
... The idea that plant communities change their composition as a result of altering their edaphic environment to enhance their fitness was proposed by Clements (1916) and named as an endogenic (primary) succession. The quantitative estimation of interrelations between environmental factors and plant po ...
... The idea that plant communities change their composition as a result of altering their edaphic environment to enhance their fitness was proposed by Clements (1916) and named as an endogenic (primary) succession. The quantitative estimation of interrelations between environmental factors and plant po ...
Unit 5 Pre and Post Test
... d. the smallest level of ecological organization. ____ 21. The series of changes that occurs after a disturbance in an existing ecosystem is called a. primary succession. b. secondary succession. c. disturbance succession. d. pioneer succession. ____ 22. The first species to populate an area where p ...
... d. the smallest level of ecological organization. ____ 21. The series of changes that occurs after a disturbance in an existing ecosystem is called a. primary succession. b. secondary succession. c. disturbance succession. d. pioneer succession. ____ 22. The first species to populate an area where p ...
Warblers Coexist in Simple Habitat
... in a test-tube, bottle or garden • competitive exclusion is always the outcome • winner may be consistent over a wide range of environmental conditions, or vary with environment • basis for competitive exclusion principle: no two species can indefinitely occupy the same niche. ...
... in a test-tube, bottle or garden • competitive exclusion is always the outcome • winner may be consistent over a wide range of environmental conditions, or vary with environment • basis for competitive exclusion principle: no two species can indefinitely occupy the same niche. ...
threatened species - mammals
... some persecution, exacerbated by road-kill, is now also under dire threat from the facial tumour disease. This species is listed as endangered under both the Tasmanian Threatened Species Protection Act 1995 and Commonwealth Environment Protection and Biodiversity Conservation Act 1999. Originating o ...
... some persecution, exacerbated by road-kill, is now also under dire threat from the facial tumour disease. This species is listed as endangered under both the Tasmanian Threatened Species Protection Act 1995 and Commonwealth Environment Protection and Biodiversity Conservation Act 1999. Originating o ...
ENVI 30 Environmental Issues
... Wilson – “No precise estimate can be made of the numbers of species being extinguished in the rain forests or in other major habitats, for the simple reason that we do not know the numbers of species originally present” ...
... Wilson – “No precise estimate can be made of the numbers of species being extinguished in the rain forests or in other major habitats, for the simple reason that we do not know the numbers of species originally present” ...
Human Impact On the Earth
... Although DDT was suspected, the levels to which the birds had been exposed were nowhere near high enough to have killed them. But when the bird's bodies were analyzed, they were found to have up to one million times the concentration that was present in the sprayed water. This led to the discovery o ...
... Although DDT was suspected, the levels to which the birds had been exposed were nowhere near high enough to have killed them. But when the bird's bodies were analyzed, they were found to have up to one million times the concentration that was present in the sprayed water. This led to the discovery o ...
Over 40% of all mammal species in the next 2 labs
... •But a couple of genera are tropical quadrupeds ...
... •But a couple of genera are tropical quadrupeds ...
529-exam 3
... Instructions: Answer ONLY 4 of the following 9 questions. Each answer is equally weighted at 25%. The questions are in 4 clusters. Answer only 1 question from each cluster. As usual, read through the entire exam first, choose your questions, and then begin answering (please number them with the numb ...
... Instructions: Answer ONLY 4 of the following 9 questions. Each answer is equally weighted at 25%. The questions are in 4 clusters. Answer only 1 question from each cluster. As usual, read through the entire exam first, choose your questions, and then begin answering (please number them with the numb ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.