Vascular plants in modern agricultural landscapes of SE Norway
... manage semi-natural grasslands, knowledge of ecological processes which determine floristic variation is of importance (Økland et al., 2006; Klimek et al., 2007). Traditionally, infield patches were grazed during springtime and then mown and dried ultimo July when the livestock was situated in the o ...
... manage semi-natural grasslands, knowledge of ecological processes which determine floristic variation is of importance (Økland et al., 2006; Klimek et al., 2007). Traditionally, infield patches were grazed during springtime and then mown and dried ultimo July when the livestock was situated in the o ...
Extinction thresholds: insights from simple models
... Extinction has played a major role in the organization of life on Earth. Almost all species which have existed at some point have already gone extinct. This unavoidable outcome, however, has been aggravated in the last few centuries due to human activity. Since 1600, the extinction of more than 485 ...
... Extinction has played a major role in the organization of life on Earth. Almost all species which have existed at some point have already gone extinct. This unavoidable outcome, however, has been aggravated in the last few centuries due to human activity. Since 1600, the extinction of more than 485 ...
the OREGON CONSERVATION STRATEGY
... many are on the road to extinction. Habitat loss, pollution, pesticides, climate change, infectious diseases, the pet trade and invasive animal species are all causing problems for frogs. ...
... many are on the road to extinction. Habitat loss, pollution, pesticides, climate change, infectious diseases, the pet trade and invasive animal species are all causing problems for frogs. ...
The Endangered Species Act Under Attack
... When Congress resumes its business this fall, legislaThat incredible success was a direct result of the Endan- tors will be working behind closed doors to finalize a gered Species Act—our nation’s most forward-thinking and comprehensive federal spending bill, which means many effective wildlife cons ...
... When Congress resumes its business this fall, legislaThat incredible success was a direct result of the Endan- tors will be working behind closed doors to finalize a gered Species Act—our nation’s most forward-thinking and comprehensive federal spending bill, which means many effective wildlife cons ...
changing competitive advantage Lethal effects of habitat
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
... the ability of the changed habitat to meet the inhabitant’s resource requirements [13,14]. As the services provided by a habitat change, so will the interactions between species that live within the habitat. Understanding how community processes change as the quality of the environment changes is ce ...
EUR 22550 EN
... Peter Duelli started the session introducing different concepts of biodiversity. The term ‘biodiversity’ has become a great success both in science and politics and started to be recognised by wider public. Like an irregularly refined diamond, it offers different aspects depending on the environment ...
... Peter Duelli started the session introducing different concepts of biodiversity. The term ‘biodiversity’ has become a great success both in science and politics and started to be recognised by wider public. Like an irregularly refined diamond, it offers different aspects depending on the environment ...
Trophic Level Effects on Species Diversity in Arthropod
... evenness of individuals in the Hymenoptera. Since the Coleoptera were principally herbivores and the Hymenoptera predator-parasites, results can be interpreted in a trophic level context. It is suggested that, in a plant monoculture, low diversity is not propagated along food chains but rather is re ...
... evenness of individuals in the Hymenoptera. Since the Coleoptera were principally herbivores and the Hymenoptera predator-parasites, results can be interpreted in a trophic level context. It is suggested that, in a plant monoculture, low diversity is not propagated along food chains but rather is re ...
a review of four successful recovery programmes for
... petrels (those less than 600 g) tend not to follow ships and so are generally not at risk from longline fishing (Baker et al. 2002). Many small petrels have suffered substantial declines, due primarily to threats at their breeding grounds (Warham 1990). Unlike the majority of larger petrels that nes ...
... petrels (those less than 600 g) tend not to follow ships and so are generally not at risk from longline fishing (Baker et al. 2002). Many small petrels have suffered substantial declines, due primarily to threats at their breeding grounds (Warham 1990). Unlike the majority of larger petrels that nes ...
FREE Sample Here
... Nitrogen enters the marine environment in one of two ways, as terrestrial run-off and as nitrogen gas dissolving from the atmosphere. Nitrogen-fixing bacteria convert nitrogen gas to ammonia, and other bacteria convert ammonia to nitrites and nitrates. Nitrates are the form in which nitrogen is used ...
... Nitrogen enters the marine environment in one of two ways, as terrestrial run-off and as nitrogen gas dissolving from the atmosphere. Nitrogen-fixing bacteria convert nitrogen gas to ammonia, and other bacteria convert ammonia to nitrites and nitrates. Nitrates are the form in which nitrogen is used ...
Proposal for Crayfish Surveys of Big Thicket National Preserve
... Economically this group of animals provides an important forage base for several game fish taxa (catfishes and basses, in particular). Robust sport fish populations result in economic gain for regions harboring diverse crayfish communities through license and tourism dollars. Crayfishes also are an ...
... Economically this group of animals provides an important forage base for several game fish taxa (catfishes and basses, in particular). Robust sport fish populations result in economic gain for regions harboring diverse crayfish communities through license and tourism dollars. Crayfishes also are an ...
AqUAtic INvAdERS
... them in your garden. • Remove and properly dispose of aquatic invasive plants by drying them, away from natural areas. When possible, place them in a plastic bag for disposal in the trash. Pets and aquariums: • Don’t dump your pets. If you have a pet that you can no longer care for, contact your l ...
... them in your garden. • Remove and properly dispose of aquatic invasive plants by drying them, away from natural areas. When possible, place them in a plastic bag for disposal in the trash. Pets and aquariums: • Don’t dump your pets. If you have a pet that you can no longer care for, contact your l ...
Freshwater Fishes and Aquatic Ecoystems observed in Belize and
... but which precise origin had remained unknown up to now. "C". synspilum abounds in all the waters of the Atlantic slope lowlands of Southern Mexico and Guatemala where we had the opportunity to observe this species many hundred of times, but nowhere had we seen before this color form in a natural ha ...
... but which precise origin had remained unknown up to now. "C". synspilum abounds in all the waters of the Atlantic slope lowlands of Southern Mexico and Guatemala where we had the opportunity to observe this species many hundred of times, but nowhere had we seen before this color form in a natural ha ...
Document
... biodiversity, structure and functioning may change as part of normal ecosystem development, and may fluctuate in response to normal periodic stress and occasional disturbance events of greater consequence. As in any intact ecosystem, the species composition and other attributes of a restored ecosyst ...
... biodiversity, structure and functioning may change as part of normal ecosystem development, and may fluctuate in response to normal periodic stress and occasional disturbance events of greater consequence. As in any intact ecosystem, the species composition and other attributes of a restored ecosyst ...
Social Impacts of Mobile Technologies for Children
... nature at heart, with great love for the broad diversity of plants and animals. They believed in the “more is better” paradigm where it comes to nature. But what separates their actions from those of current environmentalists is today’s understanding that the flourishing of a species is not, in itse ...
... nature at heart, with great love for the broad diversity of plants and animals. They believed in the “more is better” paradigm where it comes to nature. But what separates their actions from those of current environmentalists is today’s understanding that the flourishing of a species is not, in itse ...
ENDANGERED AND THREATENED Wildlife of
... The list of New Hampshire’s endangered and threatened wildlife is maintained by the New Hampshire Fish and Game Department. This list is current as of March 24, 2017 and is used to determine protection and management actions necessary to ensure the survival of the state’s endangered and threatened w ...
... The list of New Hampshire’s endangered and threatened wildlife is maintained by the New Hampshire Fish and Game Department. This list is current as of March 24, 2017 and is used to determine protection and management actions necessary to ensure the survival of the state’s endangered and threatened w ...
dietary habits of the common rodents in an agroecosystem in
... azarae largely was entomophagous; arthropods formed 41-62% of the diet in all seasons. The other four species (Calomys musculinus, Calomys Zaucha, Bolomys obscurus, and Oligoryzomys flavescens) consumed most diet items throughout the year, but relative proportions varied among seasons. Leaves fonned ...
... azarae largely was entomophagous; arthropods formed 41-62% of the diet in all seasons. The other four species (Calomys musculinus, Calomys Zaucha, Bolomys obscurus, and Oligoryzomys flavescens) consumed most diet items throughout the year, but relative proportions varied among seasons. Leaves fonned ...
international tropical conservation foundation
... but which precise origin had remained unknown up to now. "C". synspilum abounds in all the waters of the Atlantic slope lowlands of Southern Mexico and Guatemala where we had the opportunity to observe this species many hundred of times, but nowhere had we seen before this color form in a natural ha ...
... but which precise origin had remained unknown up to now. "C". synspilum abounds in all the waters of the Atlantic slope lowlands of Southern Mexico and Guatemala where we had the opportunity to observe this species many hundred of times, but nowhere had we seen before this color form in a natural ha ...
HELCOM Red List Melanitta fusca
... temperate areas and are thus exposed to threats in both ecosystems. Furthermore, velvet scoters use the Baltic Sea area for moulting, a phase in which they are flightless and particular sensitive to disturbance. Although the reasons for the dramatic decline of the Baltic Sea winter population are no ...
... temperate areas and are thus exposed to threats in both ecosystems. Furthermore, velvet scoters use the Baltic Sea area for moulting, a phase in which they are flightless and particular sensitive to disturbance. Although the reasons for the dramatic decline of the Baltic Sea winter population are no ...
Comprehensive Application Exam
... Predation (Describe an example of how it’s involved in predation.) ___________________________________ ____________________________________________________________________________________ Symbiotic Relationship (Write one example of a symbiotic relationship your animal has.) Type of symbiotic relat ...
... Predation (Describe an example of how it’s involved in predation.) ___________________________________ ____________________________________________________________________________________ Symbiotic Relationship (Write one example of a symbiotic relationship your animal has.) Type of symbiotic relat ...
TREE ECOLOGY THE ROLE OF TREES IN THE ECOSYSTEM
... trees in woodlands; they often have wider crowns that extend lower than those found in woodlands. They are also often exposed to stronger winds and so branch loss is common. These factors add to the range of habitats that trees provide. Certain trees or groups of trees may have especially high ecolo ...
... trees in woodlands; they often have wider crowns that extend lower than those found in woodlands. They are also often exposed to stronger winds and so branch loss is common. These factors add to the range of habitats that trees provide. Certain trees or groups of trees may have especially high ecolo ...
Research advances in theories and methods of community
... establishing research plots, indoor simulation, etc. In addition, methods of community succession can be used in community assembly research. Community succession is one the most important topics in ecology. It was firstly discussed by Clements in 1916. Community succession is suggested to be studie ...
... establishing research plots, indoor simulation, etc. In addition, methods of community succession can be used in community assembly research. Community succession is one the most important topics in ecology. It was firstly discussed by Clements in 1916. Community succession is suggested to be studie ...
- New Zealand Ecological Society
... and possums. Other introduced mammalian species are either restricted to particular habitats or locations and/or are found only on one island (King 2005). The biodiversity assets New Zealand has 839 islands ranging from small islets up to the North (11.3 million ha) and South (15 million ha) Islands ...
... and possums. Other introduced mammalian species are either restricted to particular habitats or locations and/or are found only on one island (King 2005). The biodiversity assets New Zealand has 839 islands ranging from small islets up to the North (11.3 million ha) and South (15 million ha) Islands ...
The Origin of Diversity
... allows coexistence of species can also explain why there is an advantage in having multiple versions of a gene in a population if it confers immunity towards a certain disease. Through the specificity of diseases, specific species as well as genotypes can be down regulated allowing for the survival ...
... allows coexistence of species can also explain why there is an advantage in having multiple versions of a gene in a population if it confers immunity towards a certain disease. Through the specificity of diseases, specific species as well as genotypes can be down regulated allowing for the survival ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.