R ,
... epilimnetic zooplankton production was also substantially reduced in invaded lakes, which may have important consequences for the transfer of energy to fish and other taxa that feed on zooplankton. Interestingly, there was some evidence that zooplankton shifted their reproduction in time and space t ...
... epilimnetic zooplankton production was also substantially reduced in invaded lakes, which may have important consequences for the transfer of energy to fish and other taxa that feed on zooplankton. Interestingly, there was some evidence that zooplankton shifted their reproduction in time and space t ...
Orconectes rusticus The goals of this document are to: State of Michigan’s
... northern clearwater crayfish (O. propinquus) has a dark brown/black patch on the top of the tail section and lack the rusty crayfish’s side carapace spots (Gunderson 1998). The golden crayfish (O. luteus) can be distinguished by its light olive green appearance as opposed to the rusty crayfish’s tan ...
... northern clearwater crayfish (O. propinquus) has a dark brown/black patch on the top of the tail section and lack the rusty crayfish’s side carapace spots (Gunderson 1998). The golden crayfish (O. luteus) can be distinguished by its light olive green appearance as opposed to the rusty crayfish’s tan ...
information - Society For Range Management
... A 70 year comparison of California range landscapes: Collaborating with F.G. Renner, A.L. Hormay and M.W. Talbot Melvin George*, Neil McDougald, Ralph Phillips, Enid Phillips, Dennis Dudley, Kerry Arroues, David Lile ...
... A 70 year comparison of California range landscapes: Collaborating with F.G. Renner, A.L. Hormay and M.W. Talbot Melvin George*, Neil McDougald, Ralph Phillips, Enid Phillips, Dennis Dudley, Kerry Arroues, David Lile ...
Interim Management Plan for Arroyo Hondo Preserve
... is to produce professionals with unrivaled training in environmental science and management who will devote their unique skills to the diagnosis, assessment, mitigation, prevention, and remedy of the environmental problems of today and the future. A guiding principle of the School is that the analys ...
... is to produce professionals with unrivaled training in environmental science and management who will devote their unique skills to the diagnosis, assessment, mitigation, prevention, and remedy of the environmental problems of today and the future. A guiding principle of the School is that the analys ...
Conservation Management of the White
... segregated by habitat. Astacus species are mainly lowland and grow faster and reach a larger final size than those of Austropotamobius which often occur in upland brooks, but both are esteemed as food and have been widely moved around by man. In the past century a number of exotic crayfish have been ...
... segregated by habitat. Astacus species are mainly lowland and grow faster and reach a larger final size than those of Austropotamobius which often occur in upland brooks, but both are esteemed as food and have been widely moved around by man. In the past century a number of exotic crayfish have been ...
Offense versus defense: responses of three morphological types of
... ABSTRACT: We compared the antipredator mechanisms of 3 morphological ‘types’ of lobsters: slipper lobsters Scyllarides latus, spiny lobsters Palinurus elephas and clawed lobsters Homarus gammarus. These lobsters differ in the extent and effectiveness of their weaponry and armor, which we assessed by ...
... ABSTRACT: We compared the antipredator mechanisms of 3 morphological ‘types’ of lobsters: slipper lobsters Scyllarides latus, spiny lobsters Palinurus elephas and clawed lobsters Homarus gammarus. These lobsters differ in the extent and effectiveness of their weaponry and armor, which we assessed by ...
Invasive Eurasian ruffe (
... Eurasian ruffe can be killed by any of the fish toxicants registered in the United States; these include rotenone, antimycin, 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide. TFM is most selective for Eurasian ruffe since the species is 3 to 6 times more sensitive to TFM than brown trout and ye ...
... Eurasian ruffe can be killed by any of the fish toxicants registered in the United States; these include rotenone, antimycin, 3-trifluoromethyl-4-nitrophenol (TFM) and Bayluscide. TFM is most selective for Eurasian ruffe since the species is 3 to 6 times more sensitive to TFM than brown trout and ye ...
Grosholz et al. 2009
... flat and has been found among native plants in the upper intertidal zone, where it has the potential to compete with and even exclude species such as Sarcocornia pacifica, Distichlis spicata, and Deschampsia caespitosa, although this has not so far been demonstrated. While both systems involve invas ...
... flat and has been found among native plants in the upper intertidal zone, where it has the potential to compete with and even exclude species such as Sarcocornia pacifica, Distichlis spicata, and Deschampsia caespitosa, although this has not so far been demonstrated. While both systems involve invas ...
Effects of stock grazing on biodiversity values in Temperate Native
... This review considers the impacts of stock grazing on biodiversity values in temperate grassy ecosystems in southern Australia. Its aim is to assist grazing management of temperate lowland native grasslands and grassy woodlands in areas of the Australian Capital Territory (ACT) where conservation is ...
... This review considers the impacts of stock grazing on biodiversity values in temperate grassy ecosystems in southern Australia. Its aim is to assist grazing management of temperate lowland native grasslands and grassy woodlands in areas of the Australian Capital Territory (ACT) where conservation is ...
Turbinaria 2
... because it was made of Turbinaria or simply because it was a floating object in the open ocean. The fact that we found recruits on both the control and treatment rafts indicated that fish recruits in a pelagic environment make use of shelter provided by floating structures, regardless of composition ...
... because it was made of Turbinaria or simply because it was a floating object in the open ocean. The fact that we found recruits on both the control and treatment rafts indicated that fish recruits in a pelagic environment make use of shelter provided by floating structures, regardless of composition ...
the ecological impact of invasive cane toads (bufo marinus) in
... many examples of catastrophic ecological impacts from such taxa (Pimentel et al. 2000). Equally, there are abundant examples of introduced species that have had relatively minor ecological impact, despite spreading widely – or even positive effects on native fauna (Wonham et al. 2005; King et al. 20 ...
... many examples of catastrophic ecological impacts from such taxa (Pimentel et al. 2000). Equally, there are abundant examples of introduced species that have had relatively minor ecological impact, despite spreading widely – or even positive effects on native fauna (Wonham et al. 2005; King et al. 20 ...
Conservation Biology for All - Society for Conservation Biology
... in the UK and in certain other countries Published in the United States by Oxford University Press Inc., New York # Oxford University Press 2010 The moral rights of the authors have been asserted Database right Oxford University Press (maker) First published 2010 Reprinted with corrections 2010 Avai ...
... in the UK and in certain other countries Published in the United States by Oxford University Press Inc., New York # Oxford University Press 2010 The moral rights of the authors have been asserted Database right Oxford University Press (maker) First published 2010 Reprinted with corrections 2010 Avai ...
National Control Plan for the European green shore crab Carcinus
... The overarching decision support framework for Carcinus management is shown in Figure 1. Managers should refer to individual sections of the NCP for further background information to assist the decision-making process. It should be noted that the purpose of the NCP is to establish a nationally agree ...
... The overarching decision support framework for Carcinus management is shown in Figure 1. Managers should refer to individual sections of the NCP for further background information to assist the decision-making process. It should be noted that the purpose of the NCP is to establish a nationally agree ...
Review of the management of feral animals and their impact on
... Exotic mammals in the Rangelands that are expanding their range or newly colonising it....................................................................................7 Distribution and habitat status of feral birds .............................................8 Biodiversity Impacts of feral bird ...
... Exotic mammals in the Rangelands that are expanding their range or newly colonising it....................................................................................7 Distribution and habitat status of feral birds .............................................8 Biodiversity Impacts of feral bird ...
Review of Feral Goat Regulatory and Strategic
... There are key issues that need to be addressed in the formulation of a feral goat management strategy. What is the status of feral goats in NSW, who owns them, are they detrimental or beneficial to the land manager, who has responsibility for the control of their numbers and when is this necessary? ...
... There are key issues that need to be addressed in the formulation of a feral goat management strategy. What is the status of feral goats in NSW, who owns them, are they detrimental or beneficial to the land manager, who has responsibility for the control of their numbers and when is this necessary? ...
Temporal Development of Biofouling Assemblages
... This information will enable DAFF to consider the feasibility and design of field-based quarantine checks for biofouling target species. The following information was collated for this report: The likely size and appearance of 1–4 week old recruits of major biofouling taxa in temperate and tropical ...
... This information will enable DAFF to consider the feasibility and design of field-based quarantine checks for biofouling target species. The following information was collated for this report: The likely size and appearance of 1–4 week old recruits of major biofouling taxa in temperate and tropical ...
Interactions between feral cats, foxes, native carnivores, and rabbits
... native prey requires kill rates of these prey to be assessed in relation to the availability of all prey types. This is particularly important for native prey. It is also important to understand the population dynamics of native Australian prey and the population dynamics of rabbits following the ar ...
... native prey requires kill rates of these prey to be assessed in relation to the availability of all prey types. This is particularly important for native prey. It is also important to understand the population dynamics of native Australian prey and the population dynamics of rabbits following the ar ...
Ecological interactions of marine sponges1 - FSU Biology
... Fig. 1. Caribbean examples of ecological interactions of sponges (photographs by J.L. Wulff, except j, which is by T.D. Swain and is reproduced with permission). The sole manipulations of the images (all originals are 35 mm slides, scanned, and manipulated in Adobe Photoshop® CS version 8) were crop ...
... Fig. 1. Caribbean examples of ecological interactions of sponges (photographs by J.L. Wulff, except j, which is by T.D. Swain and is reproduced with permission). The sole manipulations of the images (all originals are 35 mm slides, scanned, and manipulated in Adobe Photoshop® CS version 8) were crop ...
J. John Sepkoski, Jr.
... Perhaps the single anthropogenic stress on aquatic and marine environments that is considered to be most ubiquitous is described with the broad term eutrophication. Human activities have mobilized nitrogen and phosphorus through agriculture, urban and suburban sewage, and atmospheric emissions suffic ...
... Perhaps the single anthropogenic stress on aquatic and marine environments that is considered to be most ubiquitous is described with the broad term eutrophication. Human activities have mobilized nitrogen and phosphorus through agriculture, urban and suburban sewage, and atmospheric emissions suffic ...
Tropical phytoplankton species and pigments of continental shelf
... and North-West Australia is basically a diatom flora, distinctly different from the oceanic, predominantly dinoflagellateflora of the Coral Sea and Indian Ocean. Large morphologically elaborate tropical diatoms and dinoflagellates of this shelf region show great species diversity (more than 200 spp, ...
... and North-West Australia is basically a diatom flora, distinctly different from the oceanic, predominantly dinoflagellateflora of the Coral Sea and Indian Ocean. Large morphologically elaborate tropical diatoms and dinoflagellates of this shelf region show great species diversity (more than 200 spp, ...
Biologia, ecologia i efectes de la formiga Lasius neglectus
... laying rates of old queens are two fold than that of young mated queens, with a total development time from egg to worker double than from egg to nanitic for young queens. The most significant effect of the invasion of L. neglectus, on native arthropods abundance and species richness, was on coexist ...
... laying rates of old queens are two fold than that of young mated queens, with a total development time from egg to worker double than from egg to nanitic for young queens. The most significant effect of the invasion of L. neglectus, on native arthropods abundance and species richness, was on coexist ...
Conservation of Spiders (Araneae) in the Western Australian
... evenness, along with marked changes in composition of spiders with increasing postfire age. For all three measures, the assemblage appears highly deterministic, converging towards the long unburnt state. Similarity in richness, evenness and species composition to the 20-year-old sites all increased ...
... evenness, along with marked changes in composition of spiders with increasing postfire age. For all three measures, the assemblage appears highly deterministic, converging towards the long unburnt state. Similarity in richness, evenness and species composition to the 20-year-old sites all increased ...
Kingdom: Plantae - PDXScholar
... State to Point Conception, California (Abbott and Hollenberg 1976). Dominant macrophyte in the intertidal zone in Trestle Bay and Baker Bay. ...
... State to Point Conception, California (Abbott and Hollenberg 1976). Dominant macrophyte in the intertidal zone in Trestle Bay and Baker Bay. ...
MacNeil, Calum, Jaimie T. A. Dick, Mark P. Johnson, Melanie J
... Predation and parasitism in an invasion site prevalence can be high (defined for our study as the frequency of parasitized hosts per sample unit). Amphipods harbor a range of acanthocephalan, protozoan, and microsporidian parasites (Dunn and Dick 1998; MacNeil et al. 2003a,c), and yet studies rarel ...
... Predation and parasitism in an invasion site prevalence can be high (defined for our study as the frequency of parasitized hosts per sample unit). Amphipods harbor a range of acanthocephalan, protozoan, and microsporidian parasites (Dunn and Dick 1998; MacNeil et al. 2003a,c), and yet studies rarel ...
Draft Management Plan Update
... extensive systems of sand dunes in eastern North America. It contains the best remaining example of a globally-rare inland pitch pine-scrub oak barrens; a locally distinct ecosystem characterized by a sparsely treed grassy shrubland that is adapted to dry conditions and periodic fires. The Albany Pi ...
... extensive systems of sand dunes in eastern North America. It contains the best remaining example of a globally-rare inland pitch pine-scrub oak barrens; a locally distinct ecosystem characterized by a sparsely treed grassy shrubland that is adapted to dry conditions and periodic fires. The Albany Pi ...
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.