of the competition kernel a(x)
... there are more opportunities for speciation there are fewer hazards and catastrophes more competitors can be packed closely climate is benign climate is more stable the environment is more complex (more readily subdivided) the environment is more productive there is heavy predation (giving low abund ...
... there are more opportunities for speciation there are fewer hazards and catastrophes more competitors can be packed closely climate is benign climate is more stable the environment is more complex (more readily subdivided) the environment is more productive there is heavy predation (giving low abund ...
Effects of bottom trawling on the benthic assemblages in the south
... observation. Benthic communities provide shelter and refuge for juvenile fish, while associated fauna provides food sources for a variety of important demersal fish species. Thus, frequent alterations in the benthic habitats could result in a decline of marine fish landings (DAYTON et al., 1995). Th ...
... observation. Benthic communities provide shelter and refuge for juvenile fish, while associated fauna provides food sources for a variety of important demersal fish species. Thus, frequent alterations in the benthic habitats could result in a decline of marine fish landings (DAYTON et al., 1995). Th ...
Costs and benefits of biological control of invasive alien
... species, when transported to a new continent without the attendant enemies, exhibit ‘ecological release’. This phenomenon allows the introduced species to multiply rapidly in the absence of a host of attendant invertebrates and diseases, with associated tendencies to spread rapidly and to out-compet ...
... species, when transported to a new continent without the attendant enemies, exhibit ‘ecological release’. This phenomenon allows the introduced species to multiply rapidly in the absence of a host of attendant invertebrates and diseases, with associated tendencies to spread rapidly and to out-compet ...
Supplemental Protocol for Tagging/Collaring
... STRI requires reports on the health and wellbeing of all collared animals every three months for the duration of the project. In addition, any subsequent information acquired after the project that could help collaring protocols in the future should be reported to the committee. As for all proto ...
... STRI requires reports on the health and wellbeing of all collared animals every three months for the duration of the project. In addition, any subsequent information acquired after the project that could help collaring protocols in the future should be reported to the committee. As for all proto ...
What are ecological communities?
... usually so much information that it is impossible to draw conclusions about any general trends which may be apparent. What is required are methods to simplify and summarise this raw data. Two ways to analyse ecological data are: Indices: Indices summarise the data into a single number (the index) by ...
... usually so much information that it is impossible to draw conclusions about any general trends which may be apparent. What is required are methods to simplify and summarise this raw data. Two ways to analyse ecological data are: Indices: Indices summarise the data into a single number (the index) by ...
Part 4: Ancient Food Webs
... 85 Species, 559 Links, 6.6 Links/Species, 0.08 Connectance (L/S2) Mean Trophic Level = 2.99, Maximum Trophic Level = 5.15 ...
... 85 Species, 559 Links, 6.6 Links/Species, 0.08 Connectance (L/S2) Mean Trophic Level = 2.99, Maximum Trophic Level = 5.15 ...
Non-indigenous species
... the Maltese Islands. Marine Biodiversity Records.5: 1-4, evidence suggests that Siganus rivulatus has never been recorded from the Maltese Islands and does not occur. i.e. introduced population of species established in the wild with free-living, self-maintaining and self-perpetuating populations un ...
... the Maltese Islands. Marine Biodiversity Records.5: 1-4, evidence suggests that Siganus rivulatus has never been recorded from the Maltese Islands and does not occur. i.e. introduced population of species established in the wild with free-living, self-maintaining and self-perpetuating populations un ...
Distribution and Reproductive Characteristics of
... Table 1. Before conducting field surveys, a database at the Bernice P. Bishop Museum, Honolulu, Hawai'i, was summarized to tabulate existing information from voucher specimens collected from around the state. Baseline surveys were conducted around the islands of Hawai'i, Maui, Moloka'i, O'ahu, and K ...
... Table 1. Before conducting field surveys, a database at the Bernice P. Bishop Museum, Honolulu, Hawai'i, was summarized to tabulate existing information from voucher specimens collected from around the state. Baseline surveys were conducted around the islands of Hawai'i, Maui, Moloka'i, O'ahu, and K ...
Basins of attraction for species extinction and coexistence in spatial
... maximum. In this case, for a random choice of the initial densities in S2, there is a high probability for coexistence. Even then, three extinction basins still exist but they are mainly located near the corners and the edges of S2. In general, for M ⬍ M c, species coexistence can be achieved by dec ...
... maximum. In this case, for a random choice of the initial densities in S2, there is a high probability for coexistence. Even then, three extinction basins still exist but they are mainly located near the corners and the edges of S2. In general, for M ⬍ M c, species coexistence can be achieved by dec ...
Southeastern Arizona Monitoring Program
... 1. Bring to the field the historical photographs or copies of them to help you find the site and line up your shots. 2. Remember to completely fill out the Photograph ID sheet. Use a large, black marker to fill out the sheet, writing as largely and legibly as possible. 3. In all, at least five diffe ...
... 1. Bring to the field the historical photographs or copies of them to help you find the site and line up your shots. 2. Remember to completely fill out the Photograph ID sheet. Use a large, black marker to fill out the sheet, writing as largely and legibly as possible. 3. In all, at least five diffe ...
On size and area: Patterns of mammalian body size extremes
... persist only on very large landmasses. On these areas, total population sizes would be sucient to prevent extinction even though population density could still be low. On small landmasses, medium-sized species should predominate. Thus, the probability of a particular species being found on any give ...
... persist only on very large landmasses. On these areas, total population sizes would be sucient to prevent extinction even though population density could still be low. On small landmasses, medium-sized species should predominate. Thus, the probability of a particular species being found on any give ...
Potential impacts of climate change on the distributions and diversity
... All climatic variables were calculated from data sets based on monthly values of mean temperature and precipitation for 1961–1990 (current climate) or projected for 2070-99. The climate data, generated by the coupled atmosphere-ocean circulation model, HadCM3 (Pope et al. 2000; Gordon et al. 2000), ...
... All climatic variables were calculated from data sets based on monthly values of mean temperature and precipitation for 1961–1990 (current climate) or projected for 2070-99. The climate data, generated by the coupled atmosphere-ocean circulation model, HadCM3 (Pope et al. 2000; Gordon et al. 2000), ...
Look what the cat dragged in: Felis silvestris catus as
... widespread pets and has established feral populations in both continental and island ecosystems (Driscoll et al. 2007). Free-ranging cats are generalist and opportunistic predators that tend to proliferate around human populated areas, with detrimental effects on a wide array of native taxa (Woods e ...
... widespread pets and has established feral populations in both continental and island ecosystems (Driscoll et al. 2007). Free-ranging cats are generalist and opportunistic predators that tend to proliferate around human populated areas, with detrimental effects on a wide array of native taxa (Woods e ...
East Melanesian Islands ecosystem profile
... in the Solomon Islands and six in Vanuatu, covering a total area of 1.5 million hectares. While the priority sites are principally terrestrial conservation priorities, 11 of them contain significant areas of marine habitat, creating opportunities for ridge-to-reef conservation. In addition, 48 prior ...
... in the Solomon Islands and six in Vanuatu, covering a total area of 1.5 million hectares. While the priority sites are principally terrestrial conservation priorities, 11 of them contain significant areas of marine habitat, creating opportunities for ridge-to-reef conservation. In addition, 48 prior ...
Researchers see Bay in a grain of sand
... be more successful in unvegetated seeds tethered to a monofilament line. sand, where the survival rate of seeds This tethering technique had previously is higher, than in areas near eelgrass been used only in animal studies. beds. Studies of animals in seagrass beds “Our results came just at the rig ...
... be more successful in unvegetated seeds tethered to a monofilament line. sand, where the survival rate of seeds This tethering technique had previously is higher, than in areas near eelgrass been used only in animal studies. beds. Studies of animals in seagrass beds “Our results came just at the rig ...
Managing for Threatened, Endangered, and Sensitive Species
... under the focal conservation targets and should be protected through the management of the broader focal conservation targets. This approach also benefits state listed or common species; thus it enhances biodiversity. For example, at aafb, Eggert’s sunflower was classified as a threatened species pr ...
... under the focal conservation targets and should be protected through the management of the broader focal conservation targets. This approach also benefits state listed or common species; thus it enhances biodiversity. For example, at aafb, Eggert’s sunflower was classified as a threatened species pr ...
Animal Behavior as a Tool in Conservation Biology
... Survival rate is the other component of the intrinsic rate of increase in a closed population. Behavior contributes to individual survival in terrestrial vertebrates primarily through learned behaviors or responses. Here I show examples of two behaviors that affect survival rate, i.e., predato ...
... Survival rate is the other component of the intrinsic rate of increase in a closed population. Behavior contributes to individual survival in terrestrial vertebrates primarily through learned behaviors or responses. Here I show examples of two behaviors that affect survival rate, i.e., predato ...
Designing an Ecological Study - Kennesaw State University
... needed to determine whether an apparent difference is real, and about the sorts of testable functional hypotheses that might be made once a structural difference is shown to exist. What kinds of ecological systems should be compared? In making comparisons the student should remember that good proble ...
... needed to determine whether an apparent difference is real, and about the sorts of testable functional hypotheses that might be made once a structural difference is shown to exist. What kinds of ecological systems should be compared? In making comparisons the student should remember that good proble ...
Hawaii`s Terrestrial Ecosystesms: Preservation
... resources of native predators. Some immigrant species spread diseases that infect elements of the native biota. Others are toxic to native predators. There is also competition for other resources, such as nesting and resting sites. Even apparently innocuous introduced species may provide food for al ...
... resources of native predators. Some immigrant species spread diseases that infect elements of the native biota. Others are toxic to native predators. There is also competition for other resources, such as nesting and resting sites. Even apparently innocuous introduced species may provide food for al ...
The Impacts of Sprawl on Biodiversity: the Ant
... paving, farming, logging, damming, and building. First, disturbance can provide habitat with reduced native predators and competitors for species that are human commensals or early successional species (disturbance ⇒ extinctions ⇒ invasions)(Diamond and Veitch 1981, Williamson 1996). Second, disturb ...
... paving, farming, logging, damming, and building. First, disturbance can provide habitat with reduced native predators and competitors for species that are human commensals or early successional species (disturbance ⇒ extinctions ⇒ invasions)(Diamond and Veitch 1981, Williamson 1996). Second, disturb ...
TT ECOL
... roosting sites that are visited every night. These sites are within the core area of the individual home range but are not necessarily prefered for foraging. These sites are of high habitat quality with high values of PC1 and PC2. They are thus characterised by a high and dense closed canopy, with a ...
... roosting sites that are visited every night. These sites are within the core area of the individual home range but are not necessarily prefered for foraging. These sites are of high habitat quality with high values of PC1 and PC2. They are thus characterised by a high and dense closed canopy, with a ...
AP BIOLOGY – CHRISTMAS BREAK WORK
... Explain the importance of bioremediation and biological augmentation of ecosystem processes in restoration efforts ...
... Explain the importance of bioremediation and biological augmentation of ecosystem processes in restoration efforts ...
Invasive species and biological invasions
... millions individuals. Attracted by its low price and small size at birth, many consumers bought these red-eared sliders Xavier Le Roux, BiodivERsA Coordinator and CEO as pet, not knowing that they can exceed 1.5 kg within 2-3 years. Many owners consequently released their turtles into the wild, wher ...
... millions individuals. Attracted by its low price and small size at birth, many consumers bought these red-eared sliders Xavier Le Roux, BiodivERsA Coordinator and CEO as pet, not knowing that they can exceed 1.5 kg within 2-3 years. Many owners consequently released their turtles into the wild, wher ...
Human-caused environmental change: Impacts on plant diversity and evolution Colloquium
... species that is an excellent N competitor but a poor disperser, perhaps much like the bunchgrass S. scoparium (little bluestem) of prairie grasslands on sandy soils in the United States, which are ecosystems that have historically experienced frequent burns. Plants with long-lived tissues, such as e ...
... species that is an excellent N competitor but a poor disperser, perhaps much like the bunchgrass S. scoparium (little bluestem) of prairie grasslands on sandy soils in the United States, which are ecosystems that have historically experienced frequent burns. Plants with long-lived tissues, such as e ...
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.