SCIENCE ADVICE FROM A RISK ASSESSMENT OF
... Largemouth Bass is a voracious piscivore known to cause changes in ecosystem structure in lakes into which it has been introduced. It is responsible for local extinctions of small prey fishes and declines in minnow species’ richness. It is occurs in both lake and river habitats and some individuals ...
... Largemouth Bass is a voracious piscivore known to cause changes in ecosystem structure in lakes into which it has been introduced. It is responsible for local extinctions of small prey fishes and declines in minnow species’ richness. It is occurs in both lake and river habitats and some individuals ...
What is hidden behind the concept of ecosystem efficiency in energy
... term. Furthermore, water availability is often limiting on land and adaptations to temperature variability and gravity are energetically costly. All these energy losses reduce η (see also Kozlovsky, 1968; Wiegert and Owen, 1971; Odum, 1983). When N was plotted against m, a positive trend by linear l ...
... term. Furthermore, water availability is often limiting on land and adaptations to temperature variability and gravity are energetically costly. All these energy losses reduce η (see also Kozlovsky, 1968; Wiegert and Owen, 1971; Odum, 1983). When N was plotted against m, a positive trend by linear l ...
Genetic consequences of ecological reserve design guidelines: An
... was beyond the scope of this research. Additionally we do not address conservation of patterns of within and among population variance as estimated by hierarchical F statistics because these estimates were shown not to vary with the number of populations included in randomly selected reserve designs ...
... was beyond the scope of this research. Additionally we do not address conservation of patterns of within and among population variance as estimated by hierarchical F statistics because these estimates were shown not to vary with the number of populations included in randomly selected reserve designs ...
Garry Oak Ecosystems
... Chapter 3 Natural Processes and Disturbance boosted by inputs from nearby agricultural and urban activities. Some alien invasive species may even increase the availability of nitrogen; for instance, Scotch Broom (Cytisus scoparius) has a symbiotic relationship with nitrogen-fixing bacteria that are ...
... Chapter 3 Natural Processes and Disturbance boosted by inputs from nearby agricultural and urban activities. Some alien invasive species may even increase the availability of nitrogen; for instance, Scotch Broom (Cytisus scoparius) has a symbiotic relationship with nitrogen-fixing bacteria that are ...
The effect of rabbits on conservation values
... Leaving aside the possibility of increased predation on native fauna, rabbit control is likely to directly benefit native flora and fauna in most habitats of New Zealand. However, where exotic weeds are prevalent, such as in the short tussock grasslands, flora and fauna may be adversely affected by ...
... Leaving aside the possibility of increased predation on native fauna, rabbit control is likely to directly benefit native flora and fauna in most habitats of New Zealand. However, where exotic weeds are prevalent, such as in the short tussock grasslands, flora and fauna may be adversely affected by ...
Integrated Management of Vertebrate Pests in Alfalfa
... implemented, and analysis of the economics of control procedures and their potential effectiveness, can help determine the best management approach. Consideration also must be given to the presence of nonpest species. In many areas, the presence of endangered species may limit your choice of control ...
... implemented, and analysis of the economics of control procedures and their potential effectiveness, can help determine the best management approach. Consideration also must be given to the presence of nonpest species. In many areas, the presence of endangered species may limit your choice of control ...
Impacts of maximum sustainable yield policy to prey–predator systems
... and MSY does not exists in such multispecies system. For better understanding of our analysis we introduce a term ‘maximum yield’ (MY) which means the maximum harvested biomass from ecosystem with the extinction of at least one species. By and large, the MY of the prey–predator system (4) is equal t ...
... and MSY does not exists in such multispecies system. For better understanding of our analysis we introduce a term ‘maximum yield’ (MY) which means the maximum harvested biomass from ecosystem with the extinction of at least one species. By and large, the MY of the prey–predator system (4) is equal t ...
View plan for Ohikilolo (Makua) Management Unit
... ordinance issues (UXO), Lower Makua also requires contract support from UXO specialists. The two ‘areas’ have been treated separately in past reports because they are managed by two different field teams. For the purposes of the year end report, they have been reported in Ecosystem Restoration Manag ...
... ordinance issues (UXO), Lower Makua also requires contract support from UXO specialists. The two ‘areas’ have been treated separately in past reports because they are managed by two different field teams. For the purposes of the year end report, they have been reported in Ecosystem Restoration Manag ...
the Striped Legless Lizard brochure
... Upper Goulburn River catchment, where they have been found in a variety of locations (gullies, slopes and ridges) and are often found in ‘unimproved’ paddocks, or on roadsides with good grass cover. They used to occur widely on the plains as far east as Wangaratta, but the last records from north-ea ...
... Upper Goulburn River catchment, where they have been found in a variety of locations (gullies, slopes and ridges) and are often found in ‘unimproved’ paddocks, or on roadsides with good grass cover. They used to occur widely on the plains as far east as Wangaratta, but the last records from north-ea ...
A spatial theory for characterizing predator–multiprey interactions in
... types available across landscapes creates spatial heterogeneity in resource distribution, leading prey to aggregate spatially [4,7]. Prey species may also respond to the mere threat of predation by aggregating into refuge habitat to reduce encounter rates with predators and thereby reduce predation ...
... types available across landscapes creates spatial heterogeneity in resource distribution, leading prey to aggregate spatially [4,7]. Prey species may also respond to the mere threat of predation by aggregating into refuge habitat to reduce encounter rates with predators and thereby reduce predation ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
... plants (i.e. the increasing abundance of warm-adapted species and/or decreasing abundance of coldadapted species) was more pronounced on the two lowest summits and on the north-facing slopes. Also, this process primarily occurred during the period 2001-2008. Lichens generally showed less thermophili ...
... plants (i.e. the increasing abundance of warm-adapted species and/or decreasing abundance of coldadapted species) was more pronounced on the two lowest summits and on the north-facing slopes. Also, this process primarily occurred during the period 2001-2008. Lichens generally showed less thermophili ...
IDB BAP Template - Association of Drainage Authorities
... and goes on to describe targets and actions that will hopefully deliver these objectives. The intention is to integrate, as appropriate, biodiversity into the Board’s activities, such as annual maintenance programmes and capital works projects. The action plan will help to safeguard the biodiversity ...
... and goes on to describe targets and actions that will hopefully deliver these objectives. The intention is to integrate, as appropriate, biodiversity into the Board’s activities, such as annual maintenance programmes and capital works projects. The action plan will help to safeguard the biodiversity ...
Emerging patterns in the comparative analysis of phylogenetic
... relevant ones. For example, in plants it is unlikely that clades defined by floral morphological characters should contain species that also have consistent edaphic preferences. Rather, sub- or super-clades might make more coherent ecological units. Similarly, sets of organisms with the same taxonom ...
... relevant ones. For example, in plants it is unlikely that clades defined by floral morphological characters should contain species that also have consistent edaphic preferences. Rather, sub- or super-clades might make more coherent ecological units. Similarly, sets of organisms with the same taxonom ...
A synthesis of subdisciplines: predator–prey interactions, and
... effects of diversity that manifest through resource partitioning and the sampling effect. Conversely, research addressing predator–prey interactions has focused on two trophiclevel systems, emphasizing indirect and non-additive interactions among species. Here, we use a suite of consumer-resource mo ...
... effects of diversity that manifest through resource partitioning and the sampling effect. Conversely, research addressing predator–prey interactions has focused on two trophiclevel systems, emphasizing indirect and non-additive interactions among species. Here, we use a suite of consumer-resource mo ...
Common Ancestry Is a Poor Predictor of Competitive Traits in
... In order to estimate algal growth requirements for nitrogen, we exposed each species to six increasing molar concentrations of nitrate in the form of NaNO3 (0, 0.2, 2, 20, 100, and 200 μmol L-1). For comparison, standard COMBO contains 1000 μmol L-1 of NaNO3, and the minimum and maximum molar concen ...
... In order to estimate algal growth requirements for nitrogen, we exposed each species to six increasing molar concentrations of nitrate in the form of NaNO3 (0, 0.2, 2, 20, 100, and 200 μmol L-1). For comparison, standard COMBO contains 1000 μmol L-1 of NaNO3, and the minimum and maximum molar concen ...
What is an edge species? The implications of sensitivity to habitat
... butterfly species at 12 edge types. We found that sensitivity is weakly related to vulnerability to predation, but more importantly we show how our results generate new predictions about edge sensitivity that can be explored in future studies. ...
... butterfly species at 12 edge types. We found that sensitivity is weakly related to vulnerability to predation, but more importantly we show how our results generate new predictions about edge sensitivity that can be explored in future studies. ...
Lesson Overview
... 1. Volcanic explosions can create new land or sterilize existing areas. 1. Retreating glaciers can have the same effect, leaving only exposed bare rock behind them. ...
... 1. Volcanic explosions can create new land or sterilize existing areas. 1. Retreating glaciers can have the same effect, leaving only exposed bare rock behind them. ...
Populations and Communities
... representative group – a sample – of individuals on which to make the appropriate observations or measurements so that valid generalisations concerning the population or community as a whole can be made. Often, but not always, the sampled individuals need to be removed from their natural habitat usi ...
... representative group – a sample – of individuals on which to make the appropriate observations or measurements so that valid generalisations concerning the population or community as a whole can be made. Often, but not always, the sampled individuals need to be removed from their natural habitat usi ...
Annex C
... The yellow anaconda (Eunectes notaeus) is one of four species of anacondas that occur in South America. This boa is the largest snake and one of the three existing species of boa found in Argentina. Yellow anacondas have been historically considered a very valuable resource and have been largely exp ...
... The yellow anaconda (Eunectes notaeus) is one of four species of anacondas that occur in South America. This boa is the largest snake and one of the three existing species of boa found in Argentina. Yellow anacondas have been historically considered a very valuable resource and have been largely exp ...
A review of parasites in the Tasmanian devil (Sarcophilus harrisii
... impact upon a species’ viability when interacting with other negative drivers such as reduced habitat, climate change, ...
... impact upon a species’ viability when interacting with other negative drivers such as reduced habitat, climate change, ...
Norfolk Island Region Threatened Species Recovery Plan
... The islands of the Norfolk Island Group provide an important link between tropical and temperate oceanic island environments. Remote location, coupled with colonisation by plants and animals dispersed over vast distances of ocean, means they are important as habitats and breeding areas for endemic s ...
... The islands of the Norfolk Island Group provide an important link between tropical and temperate oceanic island environments. Remote location, coupled with colonisation by plants and animals dispersed over vast distances of ocean, means they are important as habitats and breeding areas for endemic s ...
Nomination form for ecological communities
... Generation length: is the average age of parents to the current newborn individuals in the population. Generation length reflects the turnover rate of breeding individuals in a population. It is greater than the age at first breeding and less than the age of the oldest breeding individual, except in ...
... Generation length: is the average age of parents to the current newborn individuals in the population. Generation length reflects the turnover rate of breeding individuals in a population. It is greater than the age at first breeding and less than the age of the oldest breeding individual, except in ...
012
... determined. If snails in the captive propagation facility show signs of disease, they must immediately be isolated and carefully observed until health appears restored. Specific CaptiveRearing Protocols developed by the Hadfield group at the University of Hawaii are attached (Appendix 2.5 Captive Pr ...
... determined. If snails in the captive propagation facility show signs of disease, they must immediately be isolated and carefully observed until health appears restored. Specific CaptiveRearing Protocols developed by the Hadfield group at the University of Hawaii are attached (Appendix 2.5 Captive Pr ...
Nutrient resorption of wetland graminoids is related to the type of
... between the length, width and area of the leaf when it was green (LG, WG, AG) and after senescence (LS, WS, AS). In these calculations, leaf area was estimated by the product of length and width (AG ≈ PG = LGWG; AS ≈ PS = LSWS), after checking that the two variables were proportional to each other o ...
... between the length, width and area of the leaf when it was green (LG, WG, AG) and after senescence (LS, WS, AS). In these calculations, leaf area was estimated by the product of length and width (AG ≈ PG = LGWG; AS ≈ PS = LSWS), after checking that the two variables were proportional to each other o ...
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.