In Retrospect: The book that began invasion ecology
... Elton also argued that complex food webs are likely to contain predators or parasites that can control invaders, whereas simpler food webs are more vulnerable to population explosions. As evidence, he pointed to the disproportionate numbers of invaders in environments such as remote islands and bore ...
... Elton also argued that complex food webs are likely to contain predators or parasites that can control invaders, whereas simpler food webs are more vulnerable to population explosions. As evidence, he pointed to the disproportionate numbers of invaders in environments such as remote islands and bore ...
assessment
... findings, Dr. Lumsden urgently sought approval to capture the remaining individuals for a captive breeding program, the details of which had been outlined in a feasibility report (Lumsden and Schulz 2009). Rather than acting immediately the Australian government established an Expert Working Group, ...
... findings, Dr. Lumsden urgently sought approval to capture the remaining individuals for a captive breeding program, the details of which had been outlined in a feasibility report (Lumsden and Schulz 2009). Rather than acting immediately the Australian government established an Expert Working Group, ...
Biogeography of fossils - Origins
... iogeography is the study of how different species are distributed around the world. Biogeography evidence supports common ancestry and the theory of evolution. The geographic locations of plants and animals alive today lead scientists to predict certain patterns for the geographic locations of fossi ...
... iogeography is the study of how different species are distributed around the world. Biogeography evidence supports common ancestry and the theory of evolution. The geographic locations of plants and animals alive today lead scientists to predict certain patterns for the geographic locations of fossi ...
Invasive Species Definition Clarification and Guidance White Paper
... populations have increased dramatically. They compete directly with native waterfowl for habitat, displacing them, and that is why they are considered an invasive species. Whitetail deer populations have increased dramatically in the northeastern U.S. and are problems in farms, yards, and natural ar ...
... populations have increased dramatically. They compete directly with native waterfowl for habitat, displacing them, and that is why they are considered an invasive species. Whitetail deer populations have increased dramatically in the northeastern U.S. and are problems in farms, yards, and natural ar ...
BEFORE THE PUBLIC SERVICE COMMISSION OF MARYLAND IN
... No plant species that are classified as endangered, threatened, or of special concern by the U.S. Fish and Wildlife Service or the Maryland Department of Natural Resources were observed on the Chalk Point site during field surveys conducted in 1990 or during the ...
... No plant species that are classified as endangered, threatened, or of special concern by the U.S. Fish and Wildlife Service or the Maryland Department of Natural Resources were observed on the Chalk Point site during field surveys conducted in 1990 or during the ...
Outcome 2 Papers - Oregon School District
... importance • What can you do (as a high school student) to help with biodiversity worldwide? • Why is biodiversity important? ...
... importance • What can you do (as a high school student) to help with biodiversity worldwide? • Why is biodiversity important? ...
Islands as model systems in ecology and evolution
... IBT was inspired by two patterns of species richness that had been documented by the early 1960s – the species–area and species–distance relationships. The first of these describes the positive relationship between the area of habitat considered, and the number of species found within that area. Thi ...
... IBT was inspired by two patterns of species richness that had been documented by the early 1960s – the species–area and species–distance relationships. The first of these describes the positive relationship between the area of habitat considered, and the number of species found within that area. Thi ...
Report - Indiana University Southeast
... Native shrub layer is also well represented in some areas of the forest given the fact that 10.1% of the trees recorded were Common Pawpaw (Asimina triloba). So the potential for a mature forest that will support a diversity of tree and associated diverse spring wildflower species and native bird s ...
... Native shrub layer is also well represented in some areas of the forest given the fact that 10.1% of the trees recorded were Common Pawpaw (Asimina triloba). So the potential for a mature forest that will support a diversity of tree and associated diverse spring wildflower species and native bird s ...
Populations and Communities
... disease become big concerns. Humans affect populations of many species. ...
... disease become big concerns. Humans affect populations of many species. ...
article in press
... In the history of the United States, approximately 50,000 alien-invasive (nonnative) species are estimated to have been introduced into the United States. Introduced species, such as corn, wheat, rice, and other food crops, and cattle, poultry, and other livestock, now provide more than 98% of the U ...
... In the history of the United States, approximately 50,000 alien-invasive (nonnative) species are estimated to have been introduced into the United States. Introduced species, such as corn, wheat, rice, and other food crops, and cattle, poultry, and other livestock, now provide more than 98% of the U ...
Forest Stewardship Series 13: Threatened and
... propagate can benefit from avoid or mitigate these impacts wherever possible. CEQA comes into play in timber harvesting. This is well the case of timber harvest plans (THPs), wetland modifications, or other illustrated by the Shirley land use activities. meadows star-tulip (Calochortus westonii) whi ...
... propagate can benefit from avoid or mitigate these impacts wherever possible. CEQA comes into play in timber harvesting. This is well the case of timber harvest plans (THPs), wetland modifications, or other illustrated by the Shirley land use activities. meadows star-tulip (Calochortus westonii) whi ...
California Status Factors
... Number or Condition of Occurrences E = Stable. Population, range, area occupied, and/or number or condition of occurrences unchanged or remaining within ±10% fluctuation Comments ...
... Number or Condition of Occurrences E = Stable. Population, range, area occupied, and/or number or condition of occurrences unchanged or remaining within ±10% fluctuation Comments ...
92159 Vertebrates Website Guide_May2013_MAMMALS_SECTION
... there has been some debate as to the groupings below this family level. Breed and Aplin (2008) concluded that it would be unwise to decide on a formal subfamily or tribe taxonomy until murine rodents are resolved at a global scale. They advocate the following subdivisions (as they apply to South Aus ...
... there has been some debate as to the groupings below this family level. Breed and Aplin (2008) concluded that it would be unwise to decide on a formal subfamily or tribe taxonomy until murine rodents are resolved at a global scale. They advocate the following subdivisions (as they apply to South Aus ...
Keystone species: Ecology
... AND RIVERS INTO WETLANDS, MEADOWS, OR RIVERINE FORESTS. THESE DAMS HAVE SHOWN TO BE BENEFICIAL TO MYRIAD OF SPECIES INCLUDING AMPHIBIANS, SALMON, AND SONG BIRDS. ...
... AND RIVERS INTO WETLANDS, MEADOWS, OR RIVERINE FORESTS. THESE DAMS HAVE SHOWN TO BE BENEFICIAL TO MYRIAD OF SPECIES INCLUDING AMPHIBIANS, SALMON, AND SONG BIRDS. ...
Experimental evidence for apparent competition in a tropical forest
... process called apparent competition3. Despite extensive theoretical discussion there are few field demonstrations of apparent competition, and none in hyper-diverse tropical communities. Here, we experimentally removed two species of herbivore from a community of leaf-mining insects in a tropical fo ...
... process called apparent competition3. Despite extensive theoretical discussion there are few field demonstrations of apparent competition, and none in hyper-diverse tropical communities. Here, we experimentally removed two species of herbivore from a community of leaf-mining insects in a tropical fo ...
Life Under Your Feet: Measuring Soil Invertebrate Diversity
... in the soil food web (namely, some taxa of nematodes, mites and Collembola), whereas easily broken-down litter is decomposed primarily by bacteria, which is reflected higher up the food chain (Coleman & Crossley 1996). And soil community diversity is at least partially determined by plant community ...
... in the soil food web (namely, some taxa of nematodes, mites and Collembola), whereas easily broken-down litter is decomposed primarily by bacteria, which is reflected higher up the food chain (Coleman & Crossley 1996). And soil community diversity is at least partially determined by plant community ...
Multiple Choice
... Multiple Choice On the lines provided, write the letter of the answer that best completes the sentence or answers the question. 16. A resource that cannot be replenished by natural processes is called a. nonrenewable. c. renewable. b. a stockpile. d. scarce. 17. The sum total of the variety of organ ...
... Multiple Choice On the lines provided, write the letter of the answer that best completes the sentence or answers the question. 16. A resource that cannot be replenished by natural processes is called a. nonrenewable. c. renewable. b. a stockpile. d. scarce. 17. The sum total of the variety of organ ...
Ring species as demonstrations of the continuum of species formation
... Mayr was attempting to make several important points about species: (i) that they evolve, (ii) that they vary geographically, (iii) that one can make logical arguments about how geographic variation can lead to species formation and (iv) that species can form even in the presence of gene flow. The v ...
... Mayr was attempting to make several important points about species: (i) that they evolve, (ii) that they vary geographically, (iii) that one can make logical arguments about how geographic variation can lead to species formation and (iv) that species can form even in the presence of gene flow. The v ...
Beta diversity - Green Resistance
... The species that occur within a region are referred to as its species pool: each local community is a subset of the species pool what determines whether a given member of the species pool can be a member of a given community? the species must be able to tolerate the conditions of the environment and ...
... The species that occur within a region are referred to as its species pool: each local community is a subset of the species pool what determines whether a given member of the species pool can be a member of a given community? the species must be able to tolerate the conditions of the environment and ...
Life Under Your Feet: Measuring Soil Invertebrate Diversity
... in the soil food web (namely, some taxa of nematodes, mites and Collembola), whereas easily broken-down litter is decomposed primarily by bacteria, which is reflected higher up the food chain (Coleman & Crossley 1996). And soil community diversity is at least partially determined by plant community ...
... in the soil food web (namely, some taxa of nematodes, mites and Collembola), whereas easily broken-down litter is decomposed primarily by bacteria, which is reflected higher up the food chain (Coleman & Crossley 1996). And soil community diversity is at least partially determined by plant community ...
Ecosystem - mssarnelli
... described based on their size, distribution or density • Species: organisms of the same species share characteristics and can breed with each other • Individual Organism: one single animal of a given ...
... described based on their size, distribution or density • Species: organisms of the same species share characteristics and can breed with each other • Individual Organism: one single animal of a given ...
What`s Wrong with Exotic Species?
... is largely the carp that you will catch. Similarly, brown trout were successfully introduced to establish a sports fishery in the upper Bay and its tributaries. The Office of Technology Assessment reports that the effects of a species can also vary with the eye of the beholder: “While many State fis ...
... is largely the carp that you will catch. Similarly, brown trout were successfully introduced to establish a sports fishery in the upper Bay and its tributaries. The Office of Technology Assessment reports that the effects of a species can also vary with the eye of the beholder: “While many State fis ...
How many species of Diacyclops?
... However, species coexistence is not the only important factor in explaining the distributional ecology of Diacyclops. The abundance of certain species in temporary ponds and pools and the production of resting stages are important topics of study (Champeau, 1966, 1971), and may explain the wide dist ...
... However, species coexistence is not the only important factor in explaining the distributional ecology of Diacyclops. The abundance of certain species in temporary ponds and pools and the production of resting stages are important topics of study (Champeau, 1966, 1971), and may explain the wide dist ...
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.