Snorkeler`s Guide
... Small fishes which have large eyes, used for hunting plankton at night in the water. There are several species in South Australia, and Bigscale and Rough are the two most common species seen in shallow waters. Bullseye fishes are sometimes found in groups around the entrance to caves, or under ledge ...
... Small fishes which have large eyes, used for hunting plankton at night in the water. There are several species in South Australia, and Bigscale and Rough are the two most common species seen in shallow waters. Bullseye fishes are sometimes found in groups around the entrance to caves, or under ledge ...
Eco-evolutionary buffering: rapid evolution facilitates regional
... scenario (no trade-off, no evolution), all individuals in the metacommunity have the same general sensitivity to competition (G = 1) and are completely resistant to heterospecific interference ...
... scenario (no trade-off, no evolution), all individuals in the metacommunity have the same general sensitivity to competition (G = 1) and are completely resistant to heterospecific interference ...
Wetterer et al.: Dominance by Alien Ant in Biosphere 2 381
... It has been widely reported anecdotally that the crazy ant, Paratrechina longicornis (Latreille), has taken over Biosphere 2 and that little else of the original fauna remains. For example, Cohen & Tilman (1996) made the widely repeated but undocumented observation that in Biosphere 2, “the majority ...
... It has been widely reported anecdotally that the crazy ant, Paratrechina longicornis (Latreille), has taken over Biosphere 2 and that little else of the original fauna remains. For example, Cohen & Tilman (1996) made the widely repeated but undocumented observation that in Biosphere 2, “the majority ...
2015 Annual Report - Threatened Species Recovery Hub
... Feral cats and foxes, sometimes interacting with other threats, such as mismanaged fire and introduced herbivores, have already caused many species’ extinctions and remain a serious threat to Australia’s vertebrate species, especially its mammals. Because of their critical role in depleting Australi ...
... Feral cats and foxes, sometimes interacting with other threats, such as mismanaged fire and introduced herbivores, have already caused many species’ extinctions and remain a serious threat to Australia’s vertebrate species, especially its mammals. Because of their critical role in depleting Australi ...
Literature review on the American bullfrog
... Human alterations to the landscape influence the habitat of many species. One far reaching human impact is the introduction of non-native species and this threat affects virtually all ecosystems (Vitousek et al., 1997) and is even suggested to be a leading cause of animal extinctions world-wide (Cla ...
... Human alterations to the landscape influence the habitat of many species. One far reaching human impact is the introduction of non-native species and this threat affects virtually all ecosystems (Vitousek et al., 1997) and is even suggested to be a leading cause of animal extinctions world-wide (Cla ...
Insect Ecology
... •In the temperate zone minimum temperatures during winter season determine the northwards spread of insects •Insect species living in the temperate zone need to have a developmental stage, which is able to survive the long and cold winter period ...
... •In the temperate zone minimum temperatures during winter season determine the northwards spread of insects •Insect species living in the temperate zone need to have a developmental stage, which is able to survive the long and cold winter period ...
View plan for Kahuku Training Area
... methods would need to be modified, or a different methodology would need to be chosen, in order to accurately detect changes in vegetation composition. Instead we are considering a small-scale monitoring project to examine the effects and potential benefits of common reintroductions in: 1) increasin ...
... methods would need to be modified, or a different methodology would need to be chosen, in order to accurately detect changes in vegetation composition. Instead we are considering a small-scale monitoring project to examine the effects and potential benefits of common reintroductions in: 1) increasin ...
Gymnesic Islands, Western Mediterranean
... wood mouse, Apodemus sylvaticus. Combined information from direct dating of bone collagen of E. quercinus and A. sylvaticus and from cultural associations provides an adequate framework to establish the chronology of the faunal change and to compare it with the chronological information available on ...
... wood mouse, Apodemus sylvaticus. Combined information from direct dating of bone collagen of E. quercinus and A. sylvaticus and from cultural associations provides an adequate framework to establish the chronology of the faunal change and to compare it with the chronological information available on ...
Evaluating the role of ecological isolation in maintaining the species
... mechanism is obvious: if two species occur in different habitats, gene flow between them will inevitable be reduced. Ecological isolation may occur through genetic differences in habitat preferences such as altitude (Ramsey et al. 2003; James and Abbott 2005; Kimball 2008), and is susceptible to ant ...
... mechanism is obvious: if two species occur in different habitats, gene flow between them will inevitable be reduced. Ecological isolation may occur through genetic differences in habitat preferences such as altitude (Ramsey et al. 2003; James and Abbott 2005; Kimball 2008), and is susceptible to ant ...
Pathogen Spillover in Disease Epidemics
... their dynamics has become increasingly important for human health, for domestic animal production, and for wildlife and plants of conservation significance. While some of these generalist pathogens may have host-specific strains or races, many are true generalists. In most multiple host systems, all ...
... their dynamics has become increasingly important for human health, for domestic animal production, and for wildlife and plants of conservation significance. While some of these generalist pathogens may have host-specific strains or races, many are true generalists. In most multiple host systems, all ...
Maureen McClung - Biology Department | UNC Chapel Hill
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
... to be some limits to similarity in coexisting competitors. Second, these limits suggest more than just differences in species, but also the variability within them, the nature of the resource and utilization curves, etc. (Begon et al 2006). Currently, the most common definition of “niche” coincides ...
Pages 304-308 - Lakeland Regional High School
... dramatic and well known • The damage to wildlife and ecosystems caused by pollution can be severe - But it tends to be less than the damage caused by habitat alteration or invasive species Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... dramatic and well known • The damage to wildlife and ecosystems caused by pollution can be severe - But it tends to be less than the damage caused by habitat alteration or invasive species Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
the Dark Side of Black Bass
... fish species, creating more homogeneous fish communities, increasing competition among small-bodied fish, reducing energy flow to other game fishes, alterating planktonic and benthic communities, and potentially changing habitat complexity. Discussed within is also the fact that, although there is p ...
... fish species, creating more homogeneous fish communities, increasing competition among small-bodied fish, reducing energy flow to other game fishes, alterating planktonic and benthic communities, and potentially changing habitat complexity. Discussed within is also the fact that, although there is p ...
press perturbations and the predictability of ecological interactions
... manipulative field experiments in community ecology amount to press experiments (Hairston 1990). Second, the importance in community dynamics of indirect interactions between two species, via intermediary species, increases with the duration of a perturbation on a system, at least theoretically (Yod ...
... manipulative field experiments in community ecology amount to press experiments (Hairston 1990). Second, the importance in community dynamics of indirect interactions between two species, via intermediary species, increases with the duration of a perturbation on a system, at least theoretically (Yod ...
Chapter 54(Community Ecology)
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
... • Species richness generally declines along an equatorial-polar gradient and is especially great in the tropics • Two key factors in equatorial-polar gradients of species richness are probably evolutionary history and climate • The greater age of tropical environments may account for the greater spe ...
Guidelines for marine ranching and stock enhancement: Draft
... All stock releases, whether of an introduced or transferred species, carry the danger of accidental introduction of disease causing agents andlor non-target species including pathogens, parasites and pest organisms to an area, with potentially highly detrimental effects on the ecosystem. It is impor ...
... All stock releases, whether of an introduced or transferred species, carry the danger of accidental introduction of disease causing agents andlor non-target species including pathogens, parasites and pest organisms to an area, with potentially highly detrimental effects on the ecosystem. It is impor ...
A meta-analysis of biotic resistance to exotic plant invasions
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
Chromosome numbers in wild and semidomesticated Brazilian
... as man probably selected, consciously or not, nondeciduous pendant fruits. The change from erect to pendant fruits could have been due to the increase in fruit size and weight selected for in the domesticated forms. Such fruits, hidden among the leaves, would also be protected against predation by b ...
... as man probably selected, consciously or not, nondeciduous pendant fruits. The change from erect to pendant fruits could have been due to the increase in fruit size and weight selected for in the domesticated forms. Such fruits, hidden among the leaves, would also be protected against predation by b ...
life histories of stoneflies (plecoptera) in the rio conejos of
... and often dominant insect orders in stream ecosystems; therefore, they are important as biological indicators, as fish food, and as part of the energy and nutrient economy of streams (Stewart and Stark 1988). Taxonomy of the North American fauna is now well known; however, information on their life ...
... and often dominant insect orders in stream ecosystems; therefore, they are important as biological indicators, as fish food, and as part of the energy and nutrient economy of streams (Stewart and Stark 1988). Taxonomy of the North American fauna is now well known; however, information on their life ...
Document
... small area in Epping Forest National Park. There are only three species left, the three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 ...
... small area in Epping Forest National Park. There are only three species left, the three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 ...
ch11_Lecture_3e - Lakeland Central School District
... Other countries have their own version of the ESA • Species at Risk Act (2002) = Canada’s endangered species law - Stresses cooperation between landowners and provincial governments - Criticized as being too weak • Other nations’ laws are not enforced ...
... Other countries have their own version of the ESA • Species at Risk Act (2002) = Canada’s endangered species law - Stresses cooperation between landowners and provincial governments - Criticized as being too weak • Other nations’ laws are not enforced ...
A metaanalysis of biotic resistance to exotic plant invasions
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
... Senecio) survival in our experiment was highest on disturbed, ungrazed ground. It is much more remarkable that plants were also able to survive under high competition in mature grassland vegetation.Õ Although resident plants may have repelled invaders not observed in the various communities of Table ...
CHANGES IN PATTERNS OF TERRITORY AND HABITAT OVERLAP IN WOOD- by
... parasitism or predation could all be important factors that influence whether or not these species will overlap spatially. Allopatric speciation is widely considered to be the chief mode of speciation of most animals, though there is increasing evidence in the literature for other forms of speciatio ...
... parasitism or predation could all be important factors that influence whether or not these species will overlap spatially. Allopatric speciation is widely considered to be the chief mode of speciation of most animals, though there is increasing evidence in the literature for other forms of speciatio ...
DR on Adoption of Guidance and Definitions Rev1
... b. Disturbance effects (i.e. changes in the local behaviour, distribution and abundance of birds in response to human activity) are not the same as disturbance impacts (i.e. modifications to population dynamics through changes in breeding success and/or mortality). Typically, the latter is rarely po ...
... b. Disturbance effects (i.e. changes in the local behaviour, distribution and abundance of birds in response to human activity) are not the same as disturbance impacts (i.e. modifications to population dynamics through changes in breeding success and/or mortality). Typically, the latter is rarely po ...
Risk analysis of the fox squirrel Sciurus niger
... because appropriate climatic conditions, habitats and food resources are encountered. ...
... because appropriate climatic conditions, habitats and food resources are encountered. ...
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.