![International Control of Marine Pollution by Exotic Species](http://s1.studyres.com/store/data/004329571_1-ee5c64bfc664372e9be2661d21ad05c8-300x300.png)
International Control of Marine Pollution by Exotic Species
... and animals found outside their usual habitats.I Exotic species can have either beneficial or hazardous effects on the ecosystems into which they are introduced. Exotic species pollution is largely a man-made problem. Virtually every introduction of an alien species, whether accidental or intentiona ...
... and animals found outside their usual habitats.I Exotic species can have either beneficial or hazardous effects on the ecosystems into which they are introduced. Exotic species pollution is largely a man-made problem. Virtually every introduction of an alien species, whether accidental or intentiona ...
Tilburg University A paleoeconomic theory of co
... powerful armies (horses), and allowed people to develop resistance to germs and bugs that animals carry. These factors explain why people who first domesticated large mammals gained an advantage over the rest—particularly in the Americas where the horse went extinct along with the vast majority (70– ...
... powerful armies (horses), and allowed people to develop resistance to germs and bugs that animals carry. These factors explain why people who first domesticated large mammals gained an advantage over the rest—particularly in the Americas where the horse went extinct along with the vast majority (70– ...
Linking ecology with parasite diversity in Neotropical fishes
... to an influence of fish diet on parasite diversity (Bell & Burt, 1991), there is one finding no effect of diet (Poulin, 1995). One reason for these contrasting findings may be that earlier studies often failed to control for two important confounding variables, study effort and the influence of phylogene ...
... to an influence of fish diet on parasite diversity (Bell & Burt, 1991), there is one finding no effect of diet (Poulin, 1995). One reason for these contrasting findings may be that earlier studies often failed to control for two important confounding variables, study effort and the influence of phylogene ...
... study we investigated the presence of Proteus species in 2361 clinical samples collected between November 2006 and July 2007 at KATH. Three Proteus species (P. mirabilis, P. vulgaris and P. penneri) were identified to be responsible for causing infections in various anatomical sites. P. mirabilis wa ...
callippe silverspot butterfly
... considerable phenotypic variability throughout its range (western North America), hence the recognition of 16 subspecies (dos Passos 1964; Miller and Brown 1981). Morphological variation between subspecies was speculated by several researchers to be clinal (a gradient of continuous variation in phen ...
... considerable phenotypic variability throughout its range (western North America), hence the recognition of 16 subspecies (dos Passos 1964; Miller and Brown 1981). Morphological variation between subspecies was speculated by several researchers to be clinal (a gradient of continuous variation in phen ...
RE Fact Sheet_12.8.21.indd
... mapping indicates that only 13% of the pre-clearing extent remains today, and thus RE 12.8.21 is listed as ‘endangered’ under Queensland legislation. Semi-evergreen vine thicket remnants are small and scattered and some are tucked away in unusual places such as cemetery and road reserves. Some signi ...
... mapping indicates that only 13% of the pre-clearing extent remains today, and thus RE 12.8.21 is listed as ‘endangered’ under Queensland legislation. Semi-evergreen vine thicket remnants are small and scattered and some are tucked away in unusual places such as cemetery and road reserves. Some signi ...
Plant Succession: Life History and Competition
... One of the oldest and most widely accepted generalizations in plant ecology is the set of characteristics used to distinguish early- from late-successional species (table 1). We maintain that this generalization is the basis of understanding the similarities and complex differences in the great vari ...
... One of the oldest and most widely accepted generalizations in plant ecology is the set of characteristics used to distinguish early- from late-successional species (table 1). We maintain that this generalization is the basis of understanding the similarities and complex differences in the great vari ...
outstanding the plants sharply distinguished: is always - UvA-DARE
... limit of the supralittoral is generally indistinct. ...
... limit of the supralittoral is generally indistinct. ...
The Mycophile 54:2 March/April 2014
... transferred it to Inocybe 1879. Kaufman included I. caesariata in his NA Flora treatment of Inocybe in 1924. Hesler applied the name I. caesariata in 1936, Lincoff in 1981, and Phillips follows them in 1991. Then it shows up again in another publication by Roberts and Evans in 2011 called “The Book ...
... transferred it to Inocybe 1879. Kaufman included I. caesariata in his NA Flora treatment of Inocybe in 1924. Hesler applied the name I. caesariata in 1936, Lincoff in 1981, and Phillips follows them in 1991. Then it shows up again in another publication by Roberts and Evans in 2011 called “The Book ...
Comparative phylogeography of codistributed species of Chilean
... background data are insufficient to generate plausible alternative a priori hypotheses, ‘first pass’ studies are needed to generate one or more plausible hypotheses. These may then be followed by studies that require collection of multiple classes of data [i.e. nuclear genes (Carsten & Knowles 2007) ...
... background data are insufficient to generate plausible alternative a priori hypotheses, ‘first pass’ studies are needed to generate one or more plausible hypotheses. These may then be followed by studies that require collection of multiple classes of data [i.e. nuclear genes (Carsten & Knowles 2007) ...
- Wiley Online Library
... intriguing and somewhat contradictory. They suggest that L. salicaria may operate as a “magnet species,” and the net impact of this invader through pollinator behavior could be positive or negative, depending on context. The nature of L. salicaria impacts for any particular habitat, therefore, is a ...
... intriguing and somewhat contradictory. They suggest that L. salicaria may operate as a “magnet species,” and the net impact of this invader through pollinator behavior could be positive or negative, depending on context. The nature of L. salicaria impacts for any particular habitat, therefore, is a ...
Biodiversity Conservation Guide for Farmers and Ranchers in Alberta
... Managing for increased biodiversity on your farm or ranch can provide are working together to provide networks of bush, grasslands, wetlands benefits to not only biodiversity but also to the long term sustainability and other habitats across the landscape. These actions are rewarding of your most im ...
... Managing for increased biodiversity on your farm or ranch can provide are working together to provide networks of bush, grasslands, wetlands benefits to not only biodiversity but also to the long term sustainability and other habitats across the landscape. These actions are rewarding of your most im ...
Chap.8 Competition and coexistence
... Consumptive competition is the most common form of competition, occurring in 37.8% of cases. chap08 Competition and coexistence ...
... Consumptive competition is the most common form of competition, occurring in 37.8% of cases. chap08 Competition and coexistence ...
Effects of trophic similarity on community composition
... terms reasonably describe the feeding relationships we analyse in the pelagic area of lakes where consumers typically engulf and kill individuals that they eat. However, while predator and prey may be intuitive and relatively appropriate for pelagic species, our framework employs these terms to more ...
... terms reasonably describe the feeding relationships we analyse in the pelagic area of lakes where consumers typically engulf and kill individuals that they eat. However, while predator and prey may be intuitive and relatively appropriate for pelagic species, our framework employs these terms to more ...
Impact Assessment of Invasive Plant Species in Selected
... nurtured and unattended, inducing rampant spread. Current livelihood pattern amplified introduction of non-native species because of more interest in off-farm activities, new species and varieties, and less interest in seeds, fertilizers, land and soil fertility. Consequently, farmers of Bhadaure Ta ...
... nurtured and unattended, inducing rampant spread. Current livelihood pattern amplified introduction of non-native species because of more interest in off-farm activities, new species and varieties, and less interest in seeds, fertilizers, land and soil fertility. Consequently, farmers of Bhadaure Ta ...
- Wiley Online Library
... Diversity and Distributions, 21, 1364–1374, ª 2015 John Wiley & Sons Ltd ...
... Diversity and Distributions, 21, 1364–1374, ª 2015 John Wiley & Sons Ltd ...
Disturbance, Diversity, and Invasion: Implications for
... intervals can alter the diversity of species that are able to regenerate in heathland, and h e n c e affect overall c o m m u n i t y diversity. An intermediate fire frequency resulted in the highest species diversity. Fire has b e e n discussed as a factor that can increase the likelihood of invasi ...
... intervals can alter the diversity of species that are able to regenerate in heathland, and h e n c e affect overall c o m m u n i t y diversity. An intermediate fire frequency resulted in the highest species diversity. Fire has b e e n discussed as a factor that can increase the likelihood of invasi ...
Hybridization, speciation
... chromosomal blocks from one taxon into another. Alternatively, if the hybrid offspring are isolated in some way from their parents, the joint effects of recombination and natural selection may decrease the frequency of deleterious alleles, ultimately giving rise to a true-breeding hybrid lineage wit ...
... chromosomal blocks from one taxon into another. Alternatively, if the hybrid offspring are isolated in some way from their parents, the joint effects of recombination and natural selection may decrease the frequency of deleterious alleles, ultimately giving rise to a true-breeding hybrid lineage wit ...
A trait-based approach to community assembly
... associated with diversity within (alpha) and across (beta) habitats or communities (Ackerly et al. 2006; Silvertown et al. 2006a,b). The alpha niche refers to those attributes that differentiate a species from co-occurring taxa, and therefore may contribute to non-neutral maintenance of species dive ...
... associated with diversity within (alpha) and across (beta) habitats or communities (Ackerly et al. 2006; Silvertown et al. 2006a,b). The alpha niche refers to those attributes that differentiate a species from co-occurring taxa, and therefore may contribute to non-neutral maintenance of species dive ...
Rusty Crayfish (Orconectes rusticus) - GB non
... to find species and habitats for its survival almost anywhere in GB although they do need permanent water all year round. In North America, typically this species is transported through live bait fisheries into new watersheds and once established is able to expand its range through connecting waterw ...
... to find species and habitats for its survival almost anywhere in GB although they do need permanent water all year round. In North America, typically this species is transported through live bait fisheries into new watersheds and once established is able to expand its range through connecting waterw ...
perennial pepperweed Lepidium latifolium L.
... Once established, perennial pepperweed can be very difficult to remove. Mechanical methods are unlikely to control perennial pepperweed because new plants quickly regenerate from pieces of rootstock. Chemical methods have been used successfully. Most of the effective herbicides cannot be applied nea ...
... Once established, perennial pepperweed can be very difficult to remove. Mechanical methods are unlikely to control perennial pepperweed because new plants quickly regenerate from pieces of rootstock. Chemical methods have been used successfully. Most of the effective herbicides cannot be applied nea ...
review - Jordi Bascompte
... within a compartment interact more frequently with each other than they do with species from other compartments32–36 (but see ref. 37 for an alternative perspective). Interestingly, this block structure can buffer the spread of perturbations across the entire network12,22 and could play a similar pa ...
... within a compartment interact more frequently with each other than they do with species from other compartments32–36 (but see ref. 37 for an alternative perspective). Interestingly, this block structure can buffer the spread of perturbations across the entire network12,22 and could play a similar pa ...
#590 - Frogs, Alligators and Pesticides
... along the northern edge of Lake Erie.[5] At Point Pelee National Park in Canada, only 5 frog species remain, and DDT residues in these frogs average 5000 to 47,000 micrograms of DDT per kilogram of body weight. At the Holiday Beach Conservation Area 40 kilometers [24 miles] east of Point Pelee, a do ...
... along the northern edge of Lake Erie.[5] At Point Pelee National Park in Canada, only 5 frog species remain, and DDT residues in these frogs average 5000 to 47,000 micrograms of DDT per kilogram of body weight. At the Holiday Beach Conservation Area 40 kilometers [24 miles] east of Point Pelee, a do ...
Hidden responses to environmental variation: maternal
... number, whereas maternal effects manifest through changes to seed quality, such as seed size. These differences in seed size often confer advantages in early growth, survival and competitive ability among species (Leishman 2001; Moles & Westoby 2002, 2004), and have been shown to change the fitness ...
... number, whereas maternal effects manifest through changes to seed quality, such as seed size. These differences in seed size often confer advantages in early growth, survival and competitive ability among species (Leishman 2001; Moles & Westoby 2002, 2004), and have been shown to change the fitness ...
Convergence, Competition, and Mimicry in a
... together in different combinations in the White Mountains of Arizona, USA. All species were strikingly convergent in floral color, size, and shape. Hummingbirds, the primary pollinators, usually did not visit flower species selectively, and individual birds often simultaneously carried four or more ...
... together in different combinations in the White Mountains of Arizona, USA. All species were strikingly convergent in floral color, size, and shape. Hummingbirds, the primary pollinators, usually did not visit flower species selectively, and individual birds often simultaneously carried four or more ...
Introduced species
![](https://commons.wikimedia.org/wiki/Special:FilePath/Melilotus_alba_bgiu.jpg?width=300)
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.