EBSA`s: Concepts and Metrics - Centre for Marine Biodiversity
... EBSA’s should NOT be the only agenda item This may be where we START management and conservation planning, but it does NOT complete the task under Oceans Act or Oceans Action Plan An EBSA agenda, driven by Delphic approach largely ignores the whole Biodiversity spectrum ...
... EBSA’s should NOT be the only agenda item This may be where we START management and conservation planning, but it does NOT complete the task under Oceans Act or Oceans Action Plan An EBSA agenda, driven by Delphic approach largely ignores the whole Biodiversity spectrum ...
Species Diversity of Browsing and Grazing Ungulates
... together. Specialization leads to increased partitioning of resources which leads to a higher total offtake. We are interested in the question, then, whether increased species richness of vertebrates that make use of the vegetation—that is, ungulate grazers and browsers—leads to an increased offtake ...
... together. Specialization leads to increased partitioning of resources which leads to a higher total offtake. We are interested in the question, then, whether increased species richness of vertebrates that make use of the vegetation—that is, ungulate grazers and browsers—leads to an increased offtake ...
Focus in Action Learning Pack
... Needs are basic to survival, whereas, ' wants ' are things that just make survival more comfortable or enjoyable. Each time a need or a want is satisfied, natural resources or energy are used up. This impacts the environment we live in. Transporting food from all around the world, just so we can hav ...
... Needs are basic to survival, whereas, ' wants ' are things that just make survival more comfortable or enjoyable. Each time a need or a want is satisfied, natural resources or energy are used up. This impacts the environment we live in. Transporting food from all around the world, just so we can hav ...
The Oceans and coastal areas and their resources
... involving the protection of the marine environment and in the managementof marine resources.Such careerscan involve practical skills, such as surveying, seamanshipand diving, as well as intellectual skills, such as extension work, legal debate and analysing data with a computer. Perhapsit is this mi ...
... involving the protection of the marine environment and in the managementof marine resources.Such careerscan involve practical skills, such as surveying, seamanshipand diving, as well as intellectual skills, such as extension work, legal debate and analysing data with a computer. Perhapsit is this mi ...
Effluents - University of Arizona
... processing will recover much of the non-edible material. Skins can be turned into leather, bone separators can recover flesh for formed products and the remainder can be made into fishmeal products. Several biotechnology products can be recovered from tilapia skins and organs. Liquid wastes can be i ...
... processing will recover much of the non-edible material. Skins can be turned into leather, bone separators can recover flesh for formed products and the remainder can be made into fishmeal products. Several biotechnology products can be recovered from tilapia skins and organs. Liquid wastes can be i ...
Below-ground resources limit seedling growth in forest understories
... both light and soil resources [26, 27, 48]. In a controlled experiment, shade intolerant species survived better in deep shade under higher than lower nutrient availability [50]. In contrast, shade tolerant species, which survived better than the intolerants in any case, were unaffected by variation ...
... both light and soil resources [26, 27, 48]. In a controlled experiment, shade intolerant species survived better in deep shade under higher than lower nutrient availability [50]. In contrast, shade tolerant species, which survived better than the intolerants in any case, were unaffected by variation ...
The Global, Phenomena Complex - Woods Hole Oceanographic
... inputs, and increased runoff from land. Increased nutrient inputs to enclosed and nearshore ecosystems have resulted in widespread coastal eutrophication throughout Europe and the United States. Production and consumption of energy also results in increased atmospheric inputs from NOx emissions, whi ...
... inputs, and increased runoff from land. Increased nutrient inputs to enclosed and nearshore ecosystems have resulted in widespread coastal eutrophication throughout Europe and the United States. Production and consumption of energy also results in increased atmospheric inputs from NOx emissions, whi ...
The North Sea Regional Advisory Council
... There have been many changes over the last few years with the new Common Fisheries Policy (CFP), the Marine Strategy Framework Directive (MSFD), and thoughts on how to regulate Natura 2000. The ICES paper could be a useful starting point, a roadmap on which the NSAC could provide advice. In terms of ...
... There have been many changes over the last few years with the new Common Fisheries Policy (CFP), the Marine Strategy Framework Directive (MSFD), and thoughts on how to regulate Natura 2000. The ICES paper could be a useful starting point, a roadmap on which the NSAC could provide advice. In terms of ...
production and fish production in large marine ecosystems Potential
... and predation mortality. Other size-dependent (but temporally constant) sources of mortality include intrinsic natural mortality, senescence and fishing mortality. The size-based model was forced with outputs (daily phytoplankton, microzooplankton and detritus biomass density, sea surface and sea fl ...
... and predation mortality. Other size-dependent (but temporally constant) sources of mortality include intrinsic natural mortality, senescence and fishing mortality. The size-based model was forced with outputs (daily phytoplankton, microzooplankton and detritus biomass density, sea surface and sea fl ...
Nitrogen enrichment and plant communities
... gas, without which the global increase in crop yields and associated rise in human population growth would not have been possible.2 However, most (ca. 86%) of the reactive N created for food production is lost to the environment through a number of pathways, and does not result in human consumption. ...
... gas, without which the global increase in crop yields and associated rise in human population growth would not have been possible.2 However, most (ca. 86%) of the reactive N created for food production is lost to the environment through a number of pathways, and does not result in human consumption. ...
Freshwater Ecosystems and Biodiversity
... factor, and then return to these factors when examining the major types of freshwater ecosystem. Although each factor is presented separately, interactions among Another useful biodiversity measure is the idea of factors are important and commonplace (discussion species endemism. Endemic species are ...
... factor, and then return to these factors when examining the major types of freshwater ecosystem. Although each factor is presented separately, interactions among Another useful biodiversity measure is the idea of factors are important and commonplace (discussion species endemism. Endemic species are ...
Dispersal Rates Affect Species Composition in Metacommunities of
... most of the species was lowest when there was no dispersal among local communities (table 1; fig. 2D); the probability of local extinction is likely to be highest when local abundances are low. These patterns reflect those seen in closed and linked communities in other systems (Huffaker 1958; Shorro ...
... most of the species was lowest when there was no dispersal among local communities (table 1; fig. 2D); the probability of local extinction is likely to be highest when local abundances are low. These patterns reflect those seen in closed and linked communities in other systems (Huffaker 1958; Shorro ...
Carnivore pdf prep
... and the fact that it kills livestock. In some countries there is unrestricted hunting of wolves. In others, licences are issued without any biological understanding. Although wolves do prey on domestic animals, the numbers of sheep or cattle taken are, as a percentage, very low. Human encroachment i ...
... and the fact that it kills livestock. In some countries there is unrestricted hunting of wolves. In others, licences are issued without any biological understanding. Although wolves do prey on domestic animals, the numbers of sheep or cattle taken are, as a percentage, very low. Human encroachment i ...
Asian Carp Invasion Lesson Plan
... feeding on juvenile or smaller adult Asian carp. Largemouth bass have often been observed feeding on small juvenile Asian carp, and many other native predators probably also feed on them before they grow too large. However, Asian carp produce many offspring which grow quickly and, if conditions are ...
... feeding on juvenile or smaller adult Asian carp. Largemouth bass have often been observed feeding on small juvenile Asian carp, and many other native predators probably also feed on them before they grow too large. However, Asian carp produce many offspring which grow quickly and, if conditions are ...
Understanding Our Environment
... Established in 1973. Endangered are those considered in imminent danger of extinction. Threatened are those likely to become endangered, at least locally, in the near future. - Vulnerable are those that are naturally rare or have been locally depleted to a level that puts them at risk. Cunningha ...
... Established in 1973. Endangered are those considered in imminent danger of extinction. Threatened are those likely to become endangered, at least locally, in the near future. - Vulnerable are those that are naturally rare or have been locally depleted to a level that puts them at risk. Cunningha ...
Take this… - Friends of the Tampa Bay National Wildlife Refuges
... The U.S. Fish and Wildlife Service (USFWS) prepared this Environmental Assessment for Egmont Key National Wildlife Refuge (NWR) in compliance with the National Environmental Policy Act (NEPA). The Environmental Assessment (EA) is to evaluate impacts from black rats (Rattus rattus) to the island of E ...
... The U.S. Fish and Wildlife Service (USFWS) prepared this Environmental Assessment for Egmont Key National Wildlife Refuge (NWR) in compliance with the National Environmental Policy Act (NEPA). The Environmental Assessment (EA) is to evaluate impacts from black rats (Rattus rattus) to the island of E ...
resume, May - Quantitative Fisheries Center
... collecting fish and limnological data for scientific studies. Laboratory section was experiential, where students collect fish, aquatic insects, aquatic plants, and water samples for analysis. Enrollment 5. Instructor, Fisheries Techniques, Spring 2008, Fall 2010. Addresses methods for collecting fi ...
... collecting fish and limnological data for scientific studies. Laboratory section was experiential, where students collect fish, aquatic insects, aquatic plants, and water samples for analysis. Enrollment 5. Instructor, Fisheries Techniques, Spring 2008, Fall 2010. Addresses methods for collecting fi ...
Species Richness and the Temporal Stability of Biomass Production
... results deepen our understanding of when and why increasing species richness stabilizes community biomass. Keywords: biodiversity, competition, species richness, primary productivity, stability. ...
... results deepen our understanding of when and why increasing species richness stabilizes community biomass. Keywords: biodiversity, competition, species richness, primary productivity, stability. ...
Understanding Our Environment
... Established in 1973. Endangered are those considered in imminent danger of extinction. Threatened are those likely to become endangered, at least locally, in the near future. - Vulnerable are those that are naturally rare or have been locally depleted to a level that puts them at risk. Cunningha ...
... Established in 1973. Endangered are those considered in imminent danger of extinction. Threatened are those likely to become endangered, at least locally, in the near future. - Vulnerable are those that are naturally rare or have been locally depleted to a level that puts them at risk. Cunningha ...
chapt13_lecture
... resources such as oil and natural gas. For this reason, countries wanted a way to protect these resources from exploitation by other countries. In the 1950’s, the United Nations agreed that each country shall have control over the marine resources out to 200 nautical miles off their coast – this inc ...
... resources such as oil and natural gas. For this reason, countries wanted a way to protect these resources from exploitation by other countries. In the 1950’s, the United Nations agreed that each country shall have control over the marine resources out to 200 nautical miles off their coast – this inc ...
Competitive Ability and Species Coexistence: A `Plant`s
... a communityof several species is then explored. The approachdeveloped here assumesthat resourcesupply/demandratio is sufficientlylow and that the extent to whichdemandsare madeon the same resourceunitsis sufficientlygreatfor plantsof differentspecies to competeintensely.It also assumeshoweverthat, s ...
... a communityof several species is then explored. The approachdeveloped here assumesthat resourcesupply/demandratio is sufficientlylow and that the extent to whichdemandsare madeon the same resourceunitsis sufficientlygreatfor plantsof differentspecies to competeintensely.It also assumeshoweverthat, s ...
Habitat-Predator Association and Avoidance in Rainbowfish
... There is now a great deal of literature regarding how animals locate objects within their environment (for reviews see Gallistel 1990 and Healy 1998). In laboratory experiments fish appear to use one of the three methods to navigate through the test environment. Individuals may use specific location ...
... There is now a great deal of literature regarding how animals locate objects within their environment (for reviews see Gallistel 1990 and Healy 1998). In laboratory experiments fish appear to use one of the three methods to navigate through the test environment. Individuals may use specific location ...
Using AMOEBAs to display multispecies
... cod, haddock, whiting, and saithe, that are piscivorous to some extent, or target flatfish species such as sole and plaice, often with a bycatch of roundfish species. Pelagic fisheries for human consumption are directed at species such as herring and mackerel, while the industrial fishery targets forage ...
... cod, haddock, whiting, and saithe, that are piscivorous to some extent, or target flatfish species such as sole and plaice, often with a bycatch of roundfish species. Pelagic fisheries for human consumption are directed at species such as herring and mackerel, while the industrial fishery targets forage ...
Overexploitation
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Sustained overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at a rate that is unsustainable, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used and defined somewhat differently in fisheries, hydrology and natural resource management.Overexploitation can lead to resource destruction, including extinctions. However it is also possible for overexploitation to be sustainable, as discussed below in the section on fisheries. In the context of fishing, the term overfishing can be used instead of overexploitation, as can overgrazing in stock management, overlogging in forest management, overdrafting in aquifer management, and endangered species in species monitoring. Overexploitation is not an activity limited to humans. Introduced predators and herbivores, for example, can overexploit native flora and fauna.