Moths and Mountains: Diversity, Altitude and Latitude
... (b) Lamington National Park, West Canungra Creek catchment, Qld and (c) Mt Lewis National Park, Wet Tropics WHA, north Qld. ............................................ 129 Figure 4.2 The relative overall contribuitons of the major moth families for two combined seasons at (a) Border Ranges, (b) Lam ...
... (b) Lamington National Park, West Canungra Creek catchment, Qld and (c) Mt Lewis National Park, Wet Tropics WHA, north Qld. ............................................ 129 Figure 4.2 The relative overall contribuitons of the major moth families for two combined seasons at (a) Border Ranges, (b) Lam ...
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... Asia. The assumption is that many of these have been introduced without some (sometimes without any) of the natural enemies that help to control them where they evolved. The chances are very much lower for arthropod pests that evolved in Southeast Asia of introducing effective, sufficiently host-spe ...
... Asia. The assumption is that many of these have been introduced without some (sometimes without any) of the natural enemies that help to control them where they evolved. The chances are very much lower for arthropod pests that evolved in Southeast Asia of introducing effective, sufficiently host-spe ...
Invasive Plants of California`s Wildland
... parks, preserves, and other wildlands. We are convinced that non-native invasive plants pose one of worst threats, perhaps the worst of all, to the state's remaining populations and communities of native species. We hope the information on the pages that follow will be used to help promote the survi ...
... parks, preserves, and other wildlands. We are convinced that non-native invasive plants pose one of worst threats, perhaps the worst of all, to the state's remaining populations and communities of native species. We hope the information on the pages that follow will be used to help promote the survi ...
Biotic resistance experienced by an invasive crustacean
... presence of medium and large C. productus. Thus on the West Coast of North America, the more aggressive red rock crab, C. productus, has the potential to reduce the abundance of C. maenas in the more saline and cooler lower estuaries. Introduction One of the most difficult questions facing invasion ...
... presence of medium and large C. productus. Thus on the West Coast of North America, the more aggressive red rock crab, C. productus, has the potential to reduce the abundance of C. maenas in the more saline and cooler lower estuaries. Introduction One of the most difficult questions facing invasion ...
NOBANIS – Invasive Alien Species Fact Sheet Ondatra zibethicus
... Hochwald 1990; Zimmermann et al. 2000). This indirectly affects rare fish species that deposit their eggs in bivalves, such as the bitterling (Rhodeus amarus). The effects of spreading of O. zibethicus are often linked with those of anthropogenic pollution, as in the case of the decline of reed belt ...
... Hochwald 1990; Zimmermann et al. 2000). This indirectly affects rare fish species that deposit their eggs in bivalves, such as the bitterling (Rhodeus amarus). The effects of spreading of O. zibethicus are often linked with those of anthropogenic pollution, as in the case of the decline of reed belt ...
restoration of tall fescue pastures to native warm season grasslands
... the success of planted native species might be impacted via indirect soil effects. My overall hypotheses were that E+ plants would recover from restoration/eradication efforts better than E- plants, and that E+ fescue would reduce microbial symbionts in the soil needed by planted native species. I f ...
... the success of planted native species might be impacted via indirect soil effects. My overall hypotheses were that E+ plants would recover from restoration/eradication efforts better than E- plants, and that E+ fescue would reduce microbial symbionts in the soil needed by planted native species. I f ...
RvK-diss digi - Waddenacademie
... How the conservation of arthropods should be achieved, though, requires a context specific approach. For each species to persist at a location, its requirements in terms of trophic and non–trophic resources must be met in a spatial and temporal context that can be used by the individuals making op t ...
... How the conservation of arthropods should be achieved, though, requires a context specific approach. For each species to persist at a location, its requirements in terms of trophic and non–trophic resources must be met in a spatial and temporal context that can be used by the individuals making op t ...
Impacts and Management of the Alien Eastern Gray Squirrel in Great
... Wauters, University of Varese, pers. comm.). The main reasons for this appear to result from adaptations to the different types of habitats within which the 2 species evolved. European red squirrels are conifer-specialists and probably evolved in boreal forests (Gurnell 1987, Gurnell and Anderson 19 ...
... Wauters, University of Varese, pers. comm.). The main reasons for this appear to result from adaptations to the different types of habitats within which the 2 species evolved. European red squirrels are conifer-specialists and probably evolved in boreal forests (Gurnell 1987, Gurnell and Anderson 19 ...
Invertebrate herbivory, plant diversity and ecosystem processes in
... that the number of insect families increased steadily and ± independently from the appearance of angiosperms. Tr, Triassic; J, Jurassic; K, Cretaceous; T, Tertiary. (redrawn after Labandeira and Sepkoski 1993) ...
... that the number of insect families increased steadily and ± independently from the appearance of angiosperms. Tr, Triassic; J, Jurassic; K, Cretaceous; T, Tertiary. (redrawn after Labandeira and Sepkoski 1993) ...
Lythrum salicaria invasiveness, impacts and regulation implications
... Bailey 1976 study is over 30 years old ample time has been given for Lythrum varieties to adapt to colder climates. Some gardeners argue that Lythrum varieties in interior Alaska behave as annuals due to the cold temperatures. Annual and biennials are also known to be invasive often due to copious s ...
... Bailey 1976 study is over 30 years old ample time has been given for Lythrum varieties to adapt to colder climates. Some gardeners argue that Lythrum varieties in interior Alaska behave as annuals due to the cold temperatures. Annual and biennials are also known to be invasive often due to copious s ...
Direct and indirect effects of nutrients on
... exposure). I also performed correlations between species showing a response to guano and other members of the community to look for significant patterns of association among the dominant species. Significant correlations would be consistent with a hypothesis of interactions among species, which migh ...
... exposure). I also performed correlations between species showing a response to guano and other members of the community to look for significant patterns of association among the dominant species. Significant correlations would be consistent with a hypothesis of interactions among species, which migh ...
battling bitou bush for biodiversity
... NSW. Approximately 80% of the NSW coastline is infested, and 158 plant species and 26 ecological communities have been identified as at risk (DEC 2006). Bitou bush possesses a range of attributes that contribute to its invasiveness and ability to out-compete native plant species. In northern NSW, se ...
... NSW. Approximately 80% of the NSW coastline is infested, and 158 plant species and 26 ecological communities have been identified as at risk (DEC 2006). Bitou bush possesses a range of attributes that contribute to its invasiveness and ability to out-compete native plant species. In northern NSW, se ...
Co-declining mammals and dung beetles: an impending ecological
... Persistent hunting in tropical forests may also affect overall dung resource availability in at least two ways. First, the disproportionate removal of large-bodied mammals drives marked declines in overall mammal biomass (Peres and Palacios 2007), which can be expected to correspond with declines in ...
... Persistent hunting in tropical forests may also affect overall dung resource availability in at least two ways. First, the disproportionate removal of large-bodied mammals drives marked declines in overall mammal biomass (Peres and Palacios 2007), which can be expected to correspond with declines in ...
Wild Species 2010 - Publications du gouvernement du Canada
... species are ranked Exotic at the national level, meaning that these species are not native to Canada, but were introduced by humans. Of the groups covered in this report, the vascular plants have the highest proportion of Exotic species (24%). Exotic species have been brought to Canada, both deliber ...
... species are ranked Exotic at the national level, meaning that these species are not native to Canada, but were introduced by humans. Of the groups covered in this report, the vascular plants have the highest proportion of Exotic species (24%). Exotic species have been brought to Canada, both deliber ...
Co-declining mammals and dung beetles: an impending ecological
... Persistent hunting in tropical forests may also affect overall dung resource availability in at least two ways. First, the disproportionate removal of large-bodied mammals drives marked declines in overall mammal biomass (Peres and Palacios 2007), which can be expected to correspond with declines in ...
... Persistent hunting in tropical forests may also affect overall dung resource availability in at least two ways. First, the disproportionate removal of large-bodied mammals drives marked declines in overall mammal biomass (Peres and Palacios 2007), which can be expected to correspond with declines in ...
Philosophy of Ecology - sikkim university library
... which can help identify the practical lessons that science can teach us. Conversely, the urgent practical demands humanity faces today cannot help but direct scientific and philosophical investigation toward the basis of those ecological challenges that threaten human survival. To adapt a phrase fro ...
... which can help identify the practical lessons that science can teach us. Conversely, the urgent practical demands humanity faces today cannot help but direct scientific and philosophical investigation toward the basis of those ecological challenges that threaten human survival. To adapt a phrase fro ...
Download 174. Belfield, T., T. Tunison, J. Chase, and S. McDaniel. 2011. Rare plant stabilization projects at Hawai`i Volcanoes National Park, 1998-2008
... relatively high survivorship for the intensively planted Plantago hawaiensis. For each planting environment, reasons are offered for survivorship patterns and management considerations are discussed for improving the survivorship of future plantings of current and for including additional species. S ...
... relatively high survivorship for the intensively planted Plantago hawaiensis. For each planting environment, reasons are offered for survivorship patterns and management considerations are discussed for improving the survivorship of future plantings of current and for including additional species. S ...
do similar communities develop in similar sites? a test
... structure and function in 12 newly constructed experimental ponds during 1 yr of natural colonization and analyzed a suite of physical–chemical variables to evaluate the assumption of environmental similarity among ponds. Ponds were similar for the measured environmental variables. However, zooplank ...
... structure and function in 12 newly constructed experimental ponds during 1 yr of natural colonization and analyzed a suite of physical–chemical variables to evaluate the assumption of environmental similarity among ponds. Ponds were similar for the measured environmental variables. However, zooplank ...
Direct inhibition of leaf dark respiration by elevated CO is
... low, increasing the difficulty of accurately measuring small changes in CO2 flux, especially in differential analysis of CO2 concentrations. To check for leaks, we periodically confirmed that the net flux rates of CO2 in an empty and dry cuvette were zero throughout the range of measurement CO2 conc ...
... low, increasing the difficulty of accurately measuring small changes in CO2 flux, especially in differential analysis of CO2 concentrations. To check for leaks, we periodically confirmed that the net flux rates of CO2 in an empty and dry cuvette were zero throughout the range of measurement CO2 conc ...
Litter feedbacks, evolutionary change and exotic plant invasion Maarten B. Eppinga
... invasions (Levine et al. 2003). For example, plant invasions that are driven by a positive feedback mechanism may not only lead to species replacement in a successional way, but could also encompass a critical transition toward a new stable ...
... invasions (Levine et al. 2003). For example, plant invasions that are driven by a positive feedback mechanism may not only lead to species replacement in a successional way, but could also encompass a critical transition toward a new stable ...
DISSERTATION VIABILITY AND INVASIVE POTENTIAL OF HYBRIDS BETWEEN YELLOW (LINARIA VULGARIS)
... distance dispersal may be important to establish a population, but modeling by Neubert and Caswell (2000) suggests it may be long-distance dispersal, even infrequent, which governs the rate of invasion. Therefore, it is likely a combination of dispersal distances (long and short) which ultimately g ...
... distance dispersal may be important to establish a population, but modeling by Neubert and Caswell (2000) suggests it may be long-distance dispersal, even infrequent, which governs the rate of invasion. Therefore, it is likely a combination of dispersal distances (long and short) which ultimately g ...
effects of introduced green iguanas (iguana
... percentage in non-native P. pterocarpum, Pterocarpus sp., and non-native C. papaya seeds. In contrast to previous studies conducted in native habitats, Green Iguanas did not increase the germination percentage of any species in Puerto Rico, where Green Iguanas have been introduced. Passage through ...
... percentage in non-native P. pterocarpum, Pterocarpus sp., and non-native C. papaya seeds. In contrast to previous studies conducted in native habitats, Green Iguanas did not increase the germination percentage of any species in Puerto Rico, where Green Iguanas have been introduced. Passage through ...
effects of introduced green iguanas (iguana
... percentage in non-native P. pterocarpum, Pterocarpus sp., and non-native C. papaya seeds. In contrast to previous studies conducted in native habitats, Green Iguanas did not increase the germination percentage of any species in Puerto Rico, where Green Iguanas have been introduced. Passage through ...
... percentage in non-native P. pterocarpum, Pterocarpus sp., and non-native C. papaya seeds. In contrast to previous studies conducted in native habitats, Green Iguanas did not increase the germination percentage of any species in Puerto Rico, where Green Iguanas have been introduced. Passage through ...
tree squirrels - Oregon Department of Fish and Wildlife
... parasites, disease and falls from trees. Other causes of mortality include collisions with motor vehicles, predation by domestic dogs and cats, falls from utility lines, and electrocution. Sources of natural predation seem to have little effect on squirrel populations. NONNATIVE INVASIVE TREE SQUIRR ...
... parasites, disease and falls from trees. Other causes of mortality include collisions with motor vehicles, predation by domestic dogs and cats, falls from utility lines, and electrocution. Sources of natural predation seem to have little effect on squirrel populations. NONNATIVE INVASIVE TREE SQUIRR ...
Anegada Iguana, Cyclura pinguis SPECIES RECOVERY PLAN
... a total of 101; overall survival has been encouraging, at 86%. Based on habitat use patterns it appears that the environment on Anegada is still below carrying capacity and will likely support a larger wild population. The core iguana habitat, particularly the nesting areas, is concentrated along th ...
... a total of 101; overall survival has been encouraging, at 86%. Based on habitat use patterns it appears that the environment on Anegada is still below carrying capacity and will likely support a larger wild population. The core iguana habitat, particularly the nesting areas, is concentrated along th ...
Introduced species
An introduced, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are called invasive species. Some have a negative effect on a local ecosystem. Some introduced species may have no negative effect or only minor impact. Some species have been introduced intentionally to combat pests. They are called biocontrols and may be regarded as beneficial as an alternative to pesticides in agriculture for example. In some instances the potential for being beneficial or detrimental in the long run remains unknown. A list of some introduced species is given in a separate article.The effects of introduced species on natural environments have gained much scrutiny from scientists, governments, farmers and others.