The influence of soil type, congeneric cues, and
... Abstract. Burrowing crayfish are potentially important ecological links between terrestrial and aquatic systems, but little is known about what drives their local distribution patterns. We investigated potential mechanisms underlying the patchy local distribution of the devil crayfish (Cambarus diog ...
... Abstract. Burrowing crayfish are potentially important ecological links between terrestrial and aquatic systems, but little is known about what drives their local distribution patterns. We investigated potential mechanisms underlying the patchy local distribution of the devil crayfish (Cambarus diog ...
Environment, Politics and Development Working Paper Series
... including the advantages and disadvantages of the proliferation of ‘extended facts’ and 2) all members of the extended peer community within the conservation sector are clear about their roles, and methodologies are in place to allow effective knowledge transfer between members. This paper briefly r ...
... including the advantages and disadvantages of the proliferation of ‘extended facts’ and 2) all members of the extended peer community within the conservation sector are clear about their roles, and methodologies are in place to allow effective knowledge transfer between members. This paper briefly r ...
The Nitrogen cycle
... *water quality: Adding large amounts of nitrogen to rivers, lakes, and coastal systems results in eutrophication, a condition that occurs in aquatic ecosystems when excessive nutrient concentrations stimulate blooms of algae that deplete oxygen, killing fish and other organisms and ruining water qua ...
... *water quality: Adding large amounts of nitrogen to rivers, lakes, and coastal systems results in eutrophication, a condition that occurs in aquatic ecosystems when excessive nutrient concentrations stimulate blooms of algae that deplete oxygen, killing fish and other organisms and ruining water qua ...
Soil Heterogeneity Effects on Tallgrass Prairie Community
... Ó 2005 Society for Ecological Restoration International ...
... Ó 2005 Society for Ecological Restoration International ...
Unit 1 Review Sheet Define ecology Contrast preservationist and
... 81. Describe the shape of a logistic curve. 82. Describe the shape of an exponential curve. 83. What are some factors that lead to the destruction of tropical rain forests? 84. Which terrestrial and aquatic ecosystem has the highest NPP? 85. What are characteristics of population dynamics? 86. What ...
... 81. Describe the shape of a logistic curve. 82. Describe the shape of an exponential curve. 83. What are some factors that lead to the destruction of tropical rain forests? 84. Which terrestrial and aquatic ecosystem has the highest NPP? 85. What are characteristics of population dynamics? 86. What ...
Dealing with uncertainty and risk: Use of multipliers and discount rates
... accounting model. Offsetting discount rates adopt principles from accounting that devalue biodiversity in the future compared with its present value, resulting in a larger offset. Discount rates are intended as a composite measure of social willingness to accept certain loss of biodiversity now in e ...
... accounting model. Offsetting discount rates adopt principles from accounting that devalue biodiversity in the future compared with its present value, resulting in a larger offset. Discount rates are intended as a composite measure of social willingness to accept certain loss of biodiversity now in e ...
Plant nitrogen-use strategy as a driver of
... hypotheses (i.e. AOA are favoured in the rhizosphere of plants exhibiting exploitative resource-use strategy, particularly during early plant growth), by comparing effects on AOB to those on AOA. To minimise bias due to non-controlled variations, detailed records of non-controlled events were taken ...
... hypotheses (i.e. AOA are favoured in the rhizosphere of plants exhibiting exploitative resource-use strategy, particularly during early plant growth), by comparing effects on AOB to those on AOA. To minimise bias due to non-controlled variations, detailed records of non-controlled events were taken ...
Top-down and bottom-up control of large herbivore populations: a
... may vary spatially and temporally [5, 6]. Moreover, human activities can potentially affect both topdown and bottom-up processes in terrestrial ecosystems. Humans are a keystone species that alters terrestrial ecosystem structure and composition through actions such as setting fires and livestock gr ...
... may vary spatially and temporally [5, 6]. Moreover, human activities can potentially affect both topdown and bottom-up processes in terrestrial ecosystems. Humans are a keystone species that alters terrestrial ecosystem structure and composition through actions such as setting fires and livestock gr ...
Differential response of ants to nutrient addition in a tropical Brown
... between plant decomposition rates and N and P concentrations in litter. Furthermore, according to the Structural Elements Hypothesis (Sterner and Elser, 2002), the nitrogen content of litter limits the growth and abundance of silk-spinning invertebrates (spiders, mesostigmatid mites and pseudoscorpi ...
... between plant decomposition rates and N and P concentrations in litter. Furthermore, according to the Structural Elements Hypothesis (Sterner and Elser, 2002), the nitrogen content of litter limits the growth and abundance of silk-spinning invertebrates (spiders, mesostigmatid mites and pseudoscorpi ...
Moral and ethical issues in plant biotechnology. GMO food.
... • Disease resistance There are many viruses, fungi and bacteria that cause plant diseases. • Cold tolerance Unexpected frost can destroy sensitive seedlings. • Drought tolerance/salinity tolerance As the world population grows and more land is utilized for housing instead of food production, farmers ...
... • Disease resistance There are many viruses, fungi and bacteria that cause plant diseases. • Cold tolerance Unexpected frost can destroy sensitive seedlings. • Drought tolerance/salinity tolerance As the world population grows and more land is utilized for housing instead of food production, farmers ...
Initiatives For The Conservation Of Marine Turtles
... international conservation organizations have also acknowledged the turtles’ critical status. All sea turtle species, except the Australia-confined flatback turtle, are considered threatened with extinction or endangered by the United States Endangered Species Act and by the IUCN Red Book (Table 1). ...
... international conservation organizations have also acknowledged the turtles’ critical status. All sea turtle species, except the Australia-confined flatback turtle, are considered threatened with extinction or endangered by the United States Endangered Species Act and by the IUCN Red Book (Table 1). ...
Aquaculture In Guyana -- Tilapia, Pacu, Shrimp Raised With Plant
... being tested. Simple hydroponic technologies coupled with aquaculture could also yield impressive production results. Hydroponic, as opposed to conventional, agriculture allows for more crop area and more versatile crop systems. Some Guyana crop land is affected by flooding, acidic soils and predati ...
... being tested. Simple hydroponic technologies coupled with aquaculture could also yield impressive production results. Hydroponic, as opposed to conventional, agriculture allows for more crop area and more versatile crop systems. Some Guyana crop land is affected by flooding, acidic soils and predati ...
Ecosystem processes
... with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.[2] These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows.[3] As ecosystems are defined by the network of interactions among or ...
... with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.[2] These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows.[3] As ecosystems are defined by the network of interactions among or ...
biodiversity in drylands - Food and Agriculture Organization of the
... Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerophyllous vegetation of the Mediterranean Basin, drylands of Southern Australia and California, Chile, Cape Floral Kingdom of South Africa, and shrublands of Australia); the cold deserts ...
... Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerophyllous vegetation of the Mediterranean Basin, drylands of Southern Australia and California, Chile, Cape Floral Kingdom of South Africa, and shrublands of Australia); the cold deserts ...
Biodiversity and Ecosystem Services in Agroecosystems
... services. Although relationships between biodiversity and ecosystem services are complex and vary widely across different types of ecosystems, at the broadest level, increased native biodiversity is generally associated with higher levels of ecosystem services within a given system (Balvanera et al. ...
... services. Although relationships between biodiversity and ecosystem services are complex and vary widely across different types of ecosystems, at the broadest level, increased native biodiversity is generally associated with higher levels of ecosystem services within a given system (Balvanera et al. ...
zoned reserve
... conservation often involves working in landscapes that are largely human dominated • A zoned reserve includes relatively undisturbed areas and the modified areas that surround them and that serve as buffer zones • Zoned reserves are often established as “conservation areas” • Costa Rica has become a ...
... conservation often involves working in landscapes that are largely human dominated • A zoned reserve includes relatively undisturbed areas and the modified areas that surround them and that serve as buffer zones • Zoned reserves are often established as “conservation areas” • Costa Rica has become a ...
IMPLICATIONS OF PLANT DIVERSITY AND SOIL CHEMICAL
... The globalization of earth’s biota is transforming local and regional floras and faunas. Both intentional and accidental introductions of many species are altering community composition and ecology of long-established biological communities (Davis 2003). Although not all introduced plants become inv ...
... The globalization of earth’s biota is transforming local and regional floras and faunas. Both intentional and accidental introductions of many species are altering community composition and ecology of long-established biological communities (Davis 2003). Although not all introduced plants become inv ...
Read more. - New Generation Plantations
... The palm trees are threatened by agriculture practices such as grazing, cultivation and herbicides. Young palms are eaten by grazing animals, destroyed by weed killers or ploughed up, so the yatay is unable to regenerate. By comparison, UPM’s forest plantations allow the plants a chance to grow. Her ...
... The palm trees are threatened by agriculture practices such as grazing, cultivation and herbicides. Young palms are eaten by grazing animals, destroyed by weed killers or ploughed up, so the yatay is unable to regenerate. By comparison, UPM’s forest plantations allow the plants a chance to grow. Her ...
Riparian Area Health
... How do weeds and waste affect riparian area health? What can I do to help? ...
... How do weeds and waste affect riparian area health? What can I do to help? ...
AP Ecology Review Questions 51-56
... 9. Provide 2 different examples of the relationship between behavioral trait and natural selection. Why does this relationship “make sense”? 10. The statement can be made that “there are risks and benefits” to everything.” How does this relate to the optimal foraging theory? 11. What is generally th ...
... 9. Provide 2 different examples of the relationship between behavioral trait and natural selection. Why does this relationship “make sense”? 10. The statement can be made that “there are risks and benefits” to everything.” How does this relate to the optimal foraging theory? 11. What is generally th ...
Creating Schoolyard Habitats - National Wildlife Federation
... receive little rain throughout the year and can only support plants able to tolerate dry conditions such as cacti and sagebrush, which in turn characterize the habitat for many other plants and animals. In forests and all other habitat types, plants and animals living there are adapted to their envi ...
... receive little rain throughout the year and can only support plants able to tolerate dry conditions such as cacti and sagebrush, which in turn characterize the habitat for many other plants and animals. In forests and all other habitat types, plants and animals living there are adapted to their envi ...
European Rabbit FERAL AN IMA LS WHEATBELT
... and ring barking trees and shrubs. They prevent the regeneration of vegetation by eating seedlings and seeds. Rabbits have contributed significantly to the extinction of plant and animal species and impact severely on agricultural production. Rabbits have degraded many reserves in the Wheatbelt. The ...
... and ring barking trees and shrubs. They prevent the regeneration of vegetation by eating seedlings and seeds. Rabbits have contributed significantly to the extinction of plant and animal species and impact severely on agricultural production. Rabbits have degraded many reserves in the Wheatbelt. The ...
Restoring native ecosystems in urban Auckland: urban soils
... vegetation and its associated native biodiversity in these landscapes is desirable for both cultural and ecological reasons. We report on the first four years of an ongoing vegetation restoration experiment in Waitakere City, Auckland, that addresses four challenges to urban restoration: weeds, Anth ...
... vegetation and its associated native biodiversity in these landscapes is desirable for both cultural and ecological reasons. We report on the first four years of an ongoing vegetation restoration experiment in Waitakere City, Auckland, that addresses four challenges to urban restoration: weeds, Anth ...