Propagule supply controls grazer community structure and primary
... composition among treatments indicated that supply also influenced species identity and relative abundances (ANOSIM: magnitude, global R ⫽ 0.25, P ⬍ 0.001; frequency, global R ⫽ 0.35, P ⬍ 0.001; Fig. 2). Composition in the smallest-magnitude treatments differed from composition in medium–high and la ...
... composition among treatments indicated that supply also influenced species identity and relative abundances (ANOSIM: magnitude, global R ⫽ 0.25, P ⬍ 0.001; frequency, global R ⫽ 0.35, P ⬍ 0.001; Fig. 2). Composition in the smallest-magnitude treatments differed from composition in medium–high and la ...
Population structure of long-lived macrozoobenthic species
... (salinity, wave exposure, temperature, water flow, and likely pH), oxygen deficiency (mainly local events), inputs of organic and inorganic matter, food (phytoplankton) and predation (Figure 3). Salinity is the major factor affecting the distribution of the species and in the margins of the distribu ...
... (salinity, wave exposure, temperature, water flow, and likely pH), oxygen deficiency (mainly local events), inputs of organic and inorganic matter, food (phytoplankton) and predation (Figure 3). Salinity is the major factor affecting the distribution of the species and in the margins of the distribu ...
Conservation of the critically endangered Mangrove Finch
... Wild management / trial translocation of mangrove finches 2010 A trial translocation of nine wild caught Mangrove Finches took place in May 2010. This was the first bird translocation to take place in the Galapagos and was conducted as an attempt to increase the geographical range of the species. Th ...
... Wild management / trial translocation of mangrove finches 2010 A trial translocation of nine wild caught Mangrove Finches took place in May 2010. This was the first bird translocation to take place in the Galapagos and was conducted as an attempt to increase the geographical range of the species. Th ...
Disentangling direct and indirect effects of experimental grassland
... The combination of management measures such as cutting and fertilizer application with the manipulation of functional group composition and their interactions led to contrasting sward types, ranging from nutrient poor, forb-dominated plots harbouring a greater diversity of plants to highly productiv ...
... The combination of management measures such as cutting and fertilizer application with the manipulation of functional group composition and their interactions led to contrasting sward types, ranging from nutrient poor, forb-dominated plots harbouring a greater diversity of plants to highly productiv ...
E Gardner Feral Cat legal analysis071213
... A. Wildlife Protection Laws Providing Authority to Manage and Control Feral Cats As noted above, feral cats are not native to Hawaii and efforts should be considered to designate them as non-indigenous invasive species. Hawaii has numerous laws that authorize the management and control of invasive s ...
... A. Wildlife Protection Laws Providing Authority to Manage and Control Feral Cats As noted above, feral cats are not native to Hawaii and efforts should be considered to designate them as non-indigenous invasive species. Hawaii has numerous laws that authorize the management and control of invasive s ...
Trophic network models explain instability of Early Triassic terrestrial
... decline to 0 individuals for extinction to occur, or set to 1, indicating that the population will become extinct immediately under any conditions, or it can be set to a value between 0 and 1, indicating the fraction of the preperturbation population size at which extinction will occur. Different MV ...
... decline to 0 individuals for extinction to occur, or set to 1, indicating that the population will become extinct immediately under any conditions, or it can be set to a value between 0 and 1, indicating the fraction of the preperturbation population size at which extinction will occur. Different MV ...
STRUCTURE OF ANT ASSEMBLAGES IN A MIDDLE
... on the basis of the relative position of points representing sampling plots with nonparametric Spearman's rank correlation. The contribution of single habitat properties to the axes of the PCA ordination factor space of ant assemblages was studied by simple correlation analysis. Distribution and co- ...
... on the basis of the relative position of points representing sampling plots with nonparametric Spearman's rank correlation. The contribution of single habitat properties to the axes of the PCA ordination factor space of ant assemblages was studied by simple correlation analysis. Distribution and co- ...
Control of plant species diversity and community invasibility by
... and Peet 2003). This is in part due to confusion over what ‘‘immigration’’ actually means in relation to species diversity. For example, in MacArthur and Wilson’s (1967) classic theory of island biogeography, species diversity is in part determined by rates of immigration of new species, where, give ...
... and Peet 2003). This is in part due to confusion over what ‘‘immigration’’ actually means in relation to species diversity. For example, in MacArthur and Wilson’s (1967) classic theory of island biogeography, species diversity is in part determined by rates of immigration of new species, where, give ...
Differential trapping success for small mammals using pitfall and
... country, including tropical rainforests and savannahs. The ...
... country, including tropical rainforests and savannahs. The ...
Interspecific interaction strength influences population density more
... mutualistic network), and empirical mutualistic networks by Vázquez and Simberloff (2002) and food webs by Thompson and Townsend (2003), downloaded from an online Interaction Web DataBase (www.nceas.ucsb.edu/interactionweb/). The random networks, mutualistic networks and cascade prey–predator networ ...
... mutualistic network), and empirical mutualistic networks by Vázquez and Simberloff (2002) and food webs by Thompson and Townsend (2003), downloaded from an online Interaction Web DataBase (www.nceas.ucsb.edu/interactionweb/). The random networks, mutualistic networks and cascade prey–predator networ ...
panthera newsletter
... the survey, we received news that one of the collared cats was killed by a herder who believed the male leopard had been preying on his goats. The incident remains under investigation by local authorities, but is all too common a scenario where people and large cats occupy the same areas. The commun ...
... the survey, we received news that one of the collared cats was killed by a herder who believed the male leopard had been preying on his goats. The incident remains under investigation by local authorities, but is all too common a scenario where people and large cats occupy the same areas. The commun ...
Guideline on Pest Risk Analysis - GB non
... facilitate such an approach in Great Britain. It complies with the CBD and reflects standards used by other schemes such as the Intergovernmental Panel on Climate Change, European Plant Protection Organisation and European Food Safety Authority to ensure good practice. Risk assessments, along with o ...
... facilitate such an approach in Great Britain. It complies with the CBD and reflects standards used by other schemes such as the Intergovernmental Panel on Climate Change, European Plant Protection Organisation and European Food Safety Authority to ensure good practice. Risk assessments, along with o ...
Status and community-based conservation of marine turtles
... erosion, which affected nearly 40% of all nests in 2007. Using satellite tracking of four green turtles nesting on Vamizi we identified foraging grounds in marine protected areas in Kenya, Tanzania and north-west Madagascar. Migratory routes of two individuals along the East African coast were general ...
... erosion, which affected nearly 40% of all nests in 2007. Using satellite tracking of four green turtles nesting on Vamizi we identified foraging grounds in marine protected areas in Kenya, Tanzania and north-west Madagascar. Migratory routes of two individuals along the East African coast were general ...
River restoration: the fuzzy logic of repairing reaches to reverse
... nitrogen removal capacity of restored Coastal Plain reaches in urban areas. They found that, during high flows when most of the N is exported, lowland reaches with gentle slopes and wider valleys have higher hydraulic retention and, therefore, capacity to retain N. Second, given that a number of stud ...
... nitrogen removal capacity of restored Coastal Plain reaches in urban areas. They found that, during high flows when most of the N is exported, lowland reaches with gentle slopes and wider valleys have higher hydraulic retention and, therefore, capacity to retain N. Second, given that a number of stud ...
Ecological Inventory Manual - Legacy | The Landscape Connection
... III. Plant Communities of the CNCB Within the CNCB, this manual describes twelve plant and four aquatic plant communities. These community types were adapted from The Terrestrial Vegetation of California (Barbour and Major 1988). Each of the community types of the CNCB provides important habitat for ...
... III. Plant Communities of the CNCB Within the CNCB, this manual describes twelve plant and four aquatic plant communities. These community types were adapted from The Terrestrial Vegetation of California (Barbour and Major 1988). Each of the community types of the CNCB provides important habitat for ...
for the main report in MS word click above
... April(both transect B) raised hopes of nesting. Unfortunately they were not seen again. Turtle dove (BoCC red list) Turtle doves were not recorded from transect B until 18th June (the final survey date) when 2-3 males were heard ‘purring’. Whether the birds were genuinely late arriving or the cold, ...
... April(both transect B) raised hopes of nesting. Unfortunately they were not seen again. Turtle dove (BoCC red list) Turtle doves were not recorded from transect B until 18th June (the final survey date) when 2-3 males were heard ‘purring’. Whether the birds were genuinely late arriving or the cold, ...
Extinction: bad genes or bad luck?
... becomes probable as a purely stochastic phenomenon. The critica1population size varies with the species, of course, but is generally very small. The classic mechanisms of competition and predation have been challenged. MacArthur (1 972), for example, wrote: «On the mainland ... the degree of synchro ...
... becomes probable as a purely stochastic phenomenon. The critica1population size varies with the species, of course, but is generally very small. The classic mechanisms of competition and predation have been challenged. MacArthur (1 972), for example, wrote: «On the mainland ... the degree of synchro ...
REPRODUCTIVE CHARACTER DISPLACEMENT AND SIGNAL ONTOGENY IN A SYMPATRIC
... within which distances between species can be measured quantitatively. The concepts of our test are outlined in Figure 2. Here, signal variation is illustrated by the shape of time-voltage waveforms resembling EODs. We employ the squared Mahalanobis distance (D2 ) as a metric of distance between the ...
... within which distances between species can be measured quantitatively. The concepts of our test are outlined in Figure 2. Here, signal variation is illustrated by the shape of time-voltage waveforms resembling EODs. We employ the squared Mahalanobis distance (D2 ) as a metric of distance between the ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... it was introduced to the Shannon-erne system in the early-mid 1990’s. In Denmark, the species was first recorded in 1843 in a channel in Copenhagen, where after it spread to spread to local lakes, and to Lake Fure (1915), Lakes Esrum (1922-23), and River Susaa system on the island of Zealand (1939). ...
... it was introduced to the Shannon-erne system in the early-mid 1990’s. In Denmark, the species was first recorded in 1843 in a channel in Copenhagen, where after it spread to spread to local lakes, and to Lake Fure (1915), Lakes Esrum (1922-23), and River Susaa system on the island of Zealand (1939). ...
Table 1: Official conservation status of Brisbane`s stream
... As with most amphibian species, there is no clearly identifiable cause of decline of populations of stream-dwelling frogs, although several factors are implicated. It is well known, however, that amphibians are extremely susceptible to environmental changes due to their dependence on both terrestria ...
... As with most amphibian species, there is no clearly identifiable cause of decline of populations of stream-dwelling frogs, although several factors are implicated. It is well known, however, that amphibians are extremely susceptible to environmental changes due to their dependence on both terrestria ...
The white clawed crayfish
... populations of the native species, especially in the south, were lost to the disease from the 1980’s onwards. It is thought that the disease is mainly spread by the non-native species which appear to be unaffected. Spores of the fungus can spread through water and can become attached to fish scales, ...
... populations of the native species, especially in the south, were lost to the disease from the 1980’s onwards. It is thought that the disease is mainly spread by the non-native species which appear to be unaffected. Spores of the fungus can spread through water and can become attached to fish scales, ...
Annual Report - Panay Eco-Social Conservation Project
... usual. However, among the European supporters diversion of funds going to the vast numbers of refugees come from Near East and the Balkans were noticeable in the past year. This competition, based one-sided in charity thinking, give the project a hard time. To all these people and institutions we ar ...
... usual. However, among the European supporters diversion of funds going to the vast numbers of refugees come from Near East and the Balkans were noticeable in the past year. This competition, based one-sided in charity thinking, give the project a hard time. To all these people and institutions we ar ...
Disentangling the importance of ecological niches from stochastic
... could explain a wide variety of ecological patterns. Hubbell’s ‘individual-based’ neutral theory was explicitly based on the ideas and formulations of the ‘speciesbased’ equilibrium theory of island biogeography [29,30], which is also a type of neutral model [44,45]. That is, species in the simple v ...
... could explain a wide variety of ecological patterns. Hubbell’s ‘individual-based’ neutral theory was explicitly based on the ideas and formulations of the ‘speciesbased’ equilibrium theory of island biogeography [29,30], which is also a type of neutral model [44,45]. That is, species in the simple v ...
Long-term monitoring at multiple trophic levels suggests
... levels of the food web (i.e. plants, herbivores and predators). The last point is important because, for endotherms inhabiting the tundra, it has been suggested that the most severe impact of climate warming may be indirect, through alterations in trophic interactions such as change in food availabi ...
... levels of the food web (i.e. plants, herbivores and predators). The last point is important because, for endotherms inhabiting the tundra, it has been suggested that the most severe impact of climate warming may be indirect, through alterations in trophic interactions such as change in food availabi ...
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.