Protecting the Environment Through the Ownership Society — Part II
... other natural resources, like ocean fisheries. Unfortunately, the federal government has managed the public’s natural resources as poorly as it has managed the federal budget. Unable to balance land use and preservation, government management of public lands has shifted between periods of exploitatio ...
... other natural resources, like ocean fisheries. Unfortunately, the federal government has managed the public’s natural resources as poorly as it has managed the federal budget. Unable to balance land use and preservation, government management of public lands has shifted between periods of exploitatio ...
Leibold et al. 2004
... All individuals of a single species within a habitat patch A set of local populations of a single species that are linked by dispersal (after Gilpin and Hanski 1991) The individuals of all species that potentially interact within a single patch or local area of habitat A set of local communities tha ...
... All individuals of a single species within a habitat patch A set of local populations of a single species that are linked by dispersal (after Gilpin and Hanski 1991) The individuals of all species that potentially interact within a single patch or local area of habitat A set of local communities tha ...
appendix w5 - Department of Water Affairs
... Marginal/Low rating=1; The floodplain falls within a Municipal nature reserve or some other category of protected status that reflects its importance for the conservation of ecological diversity a local scale. Very low rating=0; The floodplain does not fall within any category of protected status th ...
... Marginal/Low rating=1; The floodplain falls within a Municipal nature reserve or some other category of protected status that reflects its importance for the conservation of ecological diversity a local scale. Very low rating=0; The floodplain does not fall within any category of protected status th ...
Reference 1
... Authors: The relative contribution of S. grandis to the plant community biomass ranged from 1 to 80% (mean 29.8 %, SE=3.646, N=34). It was a printer error when it change to PDF paper, and we had corrected in the text following the fig 1. We were not focused on the ecosystem C and N pools, but the pl ...
... Authors: The relative contribution of S. grandis to the plant community biomass ranged from 1 to 80% (mean 29.8 %, SE=3.646, N=34). It was a printer error when it change to PDF paper, and we had corrected in the text following the fig 1. We were not focused on the ecosystem C and N pools, but the pl ...
Threatened Species - Environment, Planning and Sustainable
... populations of Delma impar as a component of the indigenous biological resources of the ACT and as a contribution to regional and national conservation of the species (ACT Government 1994). This is interpreted to include the maintenance of the species' potential for evolutionary development in the w ...
... populations of Delma impar as a component of the indigenous biological resources of the ACT and as a contribution to regional and national conservation of the species (ACT Government 1994). This is interpreted to include the maintenance of the species' potential for evolutionary development in the w ...
File - Bruner science
... chemicals in their environment. Water: Egg membranes are permeable; Breathe through skin = permeable skin. -For these reasons, amphibian species have declined significantly since the 1980s (other factors are also involved in this trend, such as deaths related to fungi). *Pesticides kill pests and ca ...
... chemicals in their environment. Water: Egg membranes are permeable; Breathe through skin = permeable skin. -For these reasons, amphibian species have declined significantly since the 1980s (other factors are also involved in this trend, such as deaths related to fungi). *Pesticides kill pests and ca ...
LISS Newsletter: Invasive Species (Summer 2012) (pdf)
... vexillum sometimes forms thick mats on the bottom of Long Island Sound. On Georges Bank these mats cover hundreds of square miles and similar large-scale infestations may occur in the Sound. Efforts have been made to study these mats and determine how they affect bottom dwelling organisms. Interesti ...
... vexillum sometimes forms thick mats on the bottom of Long Island Sound. On Georges Bank these mats cover hundreds of square miles and similar large-scale infestations may occur in the Sound. Efforts have been made to study these mats and determine how they affect bottom dwelling organisms. Interesti ...
- New Zealand Ecological Society
... Offshore islands provide a unique opportunity for restoration, because introduced pests and weeds are often absent or can be eradicated. Therefore, in many instances, islands offer the most certain and cost-effective way of maintaining viable populations of many of our native species (Craig 1990; To ...
... Offshore islands provide a unique opportunity for restoration, because introduced pests and weeds are often absent or can be eradicated. Therefore, in many instances, islands offer the most certain and cost-effective way of maintaining viable populations of many of our native species (Craig 1990; To ...
Parasites and Ecosystem Engineering: What Roles Could They Play?
... Thomas et al. 1998), trematode infections could positively influence the diversity of invertebrate communities. More generally, engineering acts that result from the engineer's activity are likely to be altered by parasites since a common consequence of numerous pathologies is a reduced activity. Th ...
... Thomas et al. 1998), trematode infections could positively influence the diversity of invertebrate communities. More generally, engineering acts that result from the engineer's activity are likely to be altered by parasites since a common consequence of numerous pathologies is a reduced activity. Th ...
PowerPoint - City of London
... Less likely to suffer from genetic diseases More resistant to viral and bacterial infections More likely to be adaptable to environmental change ...
... Less likely to suffer from genetic diseases More resistant to viral and bacterial infections More likely to be adaptable to environmental change ...
Soil invertebrate fauna enhances grassland succession and diversity
... secondary succession and local plant species diversity. Soil fauna from a series of secondary grassland succession stages selectively suppress early successional dominant14 plant species, thereby enhancing the relative abundance of subordinate14 species and also that of species from later succession ...
... secondary succession and local plant species diversity. Soil fauna from a series of secondary grassland succession stages selectively suppress early successional dominant14 plant species, thereby enhancing the relative abundance of subordinate14 species and also that of species from later succession ...
AND SPECIES RICHNESS
... similarsize and functionalstatus,while avoiding some of the pitfalls that Huston (85) described,may not advancesubstantiallyour understandingof naturalcommunities. Naturalcommunitiescomprise species that differ in size and function; as a result,the effect of the loss of diversityis interpretedmore e ...
... similarsize and functionalstatus,while avoiding some of the pitfalls that Huston (85) described,may not advancesubstantiallyour understandingof naturalcommunities. Naturalcommunitiescomprise species that differ in size and function; as a result,the effect of the loss of diversityis interpretedmore e ...
Temporal stability in forest productivity increases with tree diversity
... Through extensive simulations, this approach has shown that tree species richness promotes average productivity in European temperate forests, mostly through strong complementarity between species, demonstrating that competition for light alone may induce a positive effect of biodiversity on average ...
... Through extensive simulations, this approach has shown that tree species richness promotes average productivity in European temperate forests, mostly through strong complementarity between species, demonstrating that competition for light alone may induce a positive effect of biodiversity on average ...
Woodpeckers as a keystone species
... Woodpecker activities, especially of the larger pileated woodpecker, benefit other species through the provision of foraging opportunities, accelerated forest decay processes, increased nutrient recycling, control of insect populations, and facilitated inoculation by heart–rot fungi (Phellinus tremu ...
... Woodpecker activities, especially of the larger pileated woodpecker, benefit other species through the provision of foraging opportunities, accelerated forest decay processes, increased nutrient recycling, control of insect populations, and facilitated inoculation by heart–rot fungi (Phellinus tremu ...
elements of reasoning - Foundation for Critical Thinking
... Concepts that Guide Ecologists’ Thinking: One of the most fundamental concepts in ecology is ecosystem, defined as a group of living things that are dependent on one another and living in a particular habitat. Ecologists study how differing ecosystems function. Another key concept in ecology is eco ...
... Concepts that Guide Ecologists’ Thinking: One of the most fundamental concepts in ecology is ecosystem, defined as a group of living things that are dependent on one another and living in a particular habitat. Ecologists study how differing ecosystems function. Another key concept in ecology is eco ...
crakes and rails - Brisbane
... Abundant after floods and heavy rains, but seem to follow receding water rather than deeper flooded wetlands. ...
... Abundant after floods and heavy rains, but seem to follow receding water rather than deeper flooded wetlands. ...
Issue Brief: Palm oil`s Assault on Tropical Biodiversity
... mainly because of its value to the biodiesel industry. Encouraged largely by government incentives, palm oil plantations are growing rapidly in Brazil, and at great risk of deforestation is the carbon- and species-rich ecosystem that is the Amazon rainforest, 60 percent of which lies in Brazil. The ...
... mainly because of its value to the biodiesel industry. Encouraged largely by government incentives, palm oil plantations are growing rapidly in Brazil, and at great risk of deforestation is the carbon- and species-rich ecosystem that is the Amazon rainforest, 60 percent of which lies in Brazil. The ...
Community specificity: life and afterlife effects of genes
... canyons and dry stream channels Genotype; Temperate old-field population ...
... canyons and dry stream channels Genotype; Temperate old-field population ...
02_06011_ClamShrimp.qxd:CFN 120(2)
... species occupying human-disturbed soils are: Knieskern’s Beaked Rush (Rhynchospora knieskernii) in a tire rut and on a waste dump in the New Jersey Pine Barrens (Schuyler 1999) and larvae of the Regal Fritillary (Speyeria idalia) overwintering in soils disturbed by tanks in Pennsylvania (Rosenzweig ...
... species occupying human-disturbed soils are: Knieskern’s Beaked Rush (Rhynchospora knieskernii) in a tire rut and on a waste dump in the New Jersey Pine Barrens (Schuyler 1999) and larvae of the Regal Fritillary (Speyeria idalia) overwintering in soils disturbed by tanks in Pennsylvania (Rosenzweig ...
Entomopathogen biodiversity increases host
... most pairings were less effective than single highly effective species. This antagonism may have resulted from negative interactions between microbes or their toxins prior to or during the infection process. In several other studies, pathogen species pairs produced simple additive effects, such that ...
... most pairings were less effective than single highly effective species. This antagonism may have resulted from negative interactions between microbes or their toxins prior to or during the infection process. In several other studies, pathogen species pairs produced simple additive effects, such that ...
Plant coexistence and the niche
... There have been several reviews of the theoretical alternatives to classical coexistence theory [27–29], but no comprehensive, recent review of progress made in the search for empirical evidence of niche separation in plants. A peculiarity of the concept of the niche makes a review of the evidence p ...
... There have been several reviews of the theoretical alternatives to classical coexistence theory [27–29], but no comprehensive, recent review of progress made in the search for empirical evidence of niche separation in plants. A peculiarity of the concept of the niche makes a review of the evidence p ...
LESSER PRAIRIE CHICKEN Crude Oil and Natural Gas
... LPCs require large tracts of relatively intact native grasslands and prairies to survive. LPCs, particularly nesting hens, avoid vertical structures because they are often used as perches by predators such as hawks, eagles and owls. LPCs also exhibit a lek mating system. Males gather to display on l ...
... LPCs require large tracts of relatively intact native grasslands and prairies to survive. LPCs, particularly nesting hens, avoid vertical structures because they are often used as perches by predators such as hawks, eagles and owls. LPCs also exhibit a lek mating system. Males gather to display on l ...
Patterns of cooccurrences in a killifish
... In our study system, these ecological forces probably structured the community by body sizes of interacting organisms rather than by species identities. Key words: body size, coexistence, community structure, negative co-occurrence, nestedness. ...
... In our study system, these ecological forces probably structured the community by body sizes of interacting organisms rather than by species identities. Key words: body size, coexistence, community structure, negative co-occurrence, nestedness. ...
expansion under climate change Non-climatic
... as annual temperatures increase. There have been many observed cases of distribution shifts towards higher elevations or latitudes [2], yet often at rates slower than climate change itself [1,6], suggesting that lags or non-climatic factors are slowing down climate-induced species’ range shifts. Whi ...
... as annual temperatures increase. There have been many observed cases of distribution shifts towards higher elevations or latitudes [2], yet often at rates slower than climate change itself [1,6], suggesting that lags or non-climatic factors are slowing down climate-induced species’ range shifts. Whi ...
PDF - Smithsonian Tropical Research Institute
... A . actinophyNum is characterised by the abundance of Clubionidae, Theridiidae, Psylloidea, Phlaeothripidae, Chrysomelidae, Corylophidae, Curculionidae and Braconidae, and by the scarcity of Empididae, Symphyta, Ichneumonidae and Formicidae. The major determinants of the composition of the arboreal ...
... A . actinophyNum is characterised by the abundance of Clubionidae, Theridiidae, Psylloidea, Phlaeothripidae, Chrysomelidae, Corylophidae, Curculionidae and Braconidae, and by the scarcity of Empididae, Symphyta, Ichneumonidae and Formicidae. The major determinants of the composition of the arboreal ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.