OS - BioMed Central
... and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspecific categories (e.g. subspecies, varieties), some of which are reported outside the boun ...
... and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspecific categories (e.g. subspecies, varieties), some of which are reported outside the boun ...
IMPACT: Toward a framework for understanding the
... we review some of the best examples of studies, both experimental and observational, that have quantified impacts. The impact of an invader can be measured at five levels: (1) effects on individuals (including demographic rates such as mortality and growth), (2) genetic effects (including hybridizat ...
... we review some of the best examples of studies, both experimental and observational, that have quantified impacts. The impact of an invader can be measured at five levels: (1) effects on individuals (including demographic rates such as mortality and growth), (2) genetic effects (including hybridizat ...
Biodiversity - HCC Learning Web
... What Is Being Done to Preserve Biodiversity? Endangered species are those that have such small numbers that they are in immediate danger of becoming extinct. Threatened species could become extinct if a critical environmental factor is changed. • The preservation question ultimately becomes one ...
... What Is Being Done to Preserve Biodiversity? Endangered species are those that have such small numbers that they are in immediate danger of becoming extinct. Threatened species could become extinct if a critical environmental factor is changed. • The preservation question ultimately becomes one ...
Molluscs
... Endeavour to protect sites of particular significance to Olympia oysters when considering proposals for tenures development or other intertidal activities via Habitat referral process. Collect and collate information on distribution, abundance and population structure of Olympia oysters in BC. Ident ...
... Endeavour to protect sites of particular significance to Olympia oysters when considering proposals for tenures development or other intertidal activities via Habitat referral process. Collect and collate information on distribution, abundance and population structure of Olympia oysters in BC. Ident ...
Terrestrial Salamander Monitoring Project
... exceed biomass of all other vertebrate groups in temperate forests ...
... exceed biomass of all other vertebrate groups in temperate forests ...
Ecological Impacts of Alien Species
... the impacts of those species and, therefore, to provide timely advice to managers on where limited resources should be allocated. This capacity has been limited partly by the context-dependent nature of ecological impacts, research highly skewed toward certain taxa and habitat types, and the lack of ...
... the impacts of those species and, therefore, to provide timely advice to managers on where limited resources should be allocated. This capacity has been limited partly by the context-dependent nature of ecological impacts, research highly skewed toward certain taxa and habitat types, and the lack of ...
Lizard community structure across a grassland
... Animal community responses may often parallel vegetative patterns found at ecotones because of the effect of dominant plants on ecosystem function and habitat structure (Risser 1993). Ecotones are defined both spatially and temporally with effects differing on those two dimensions (Gosz 1993). The e ...
... Animal community responses may often parallel vegetative patterns found at ecotones because of the effect of dominant plants on ecosystem function and habitat structure (Risser 1993). Ecotones are defined both spatially and temporally with effects differing on those two dimensions (Gosz 1993). The e ...
CBD Fourth National Report
... location between the three continents (Europe, Africa and Asia), along with 10,000 years of history and civilization, yielded a flora and fauna of great diversity and richness. The island its divided into three geomorphological zones, the Troodos mountains, the Pentadaktylos Range and the Mesaoria p ...
... location between the three continents (Europe, Africa and Asia), along with 10,000 years of history and civilization, yielded a flora and fauna of great diversity and richness. The island its divided into three geomorphological zones, the Troodos mountains, the Pentadaktylos Range and the Mesaoria p ...
The Effects of Environmental and Social Factors on the Selection of
... birds to find foraging flocks more rapidly and from greater distances (Kushlan 1981; but see Tickell 2003). Social cues need not only occur at foraging sites. Because most wading bird species roost and nest in groups, it is possible that information is exchanged among individuals at these communal l ...
... birds to find foraging flocks more rapidly and from greater distances (Kushlan 1981; but see Tickell 2003). Social cues need not only occur at foraging sites. Because most wading bird species roost and nest in groups, it is possible that information is exchanged among individuals at these communal l ...
news16-8-9
... population exposed to seismic-related hazards ranges from 30% (Kazakhstan) to 100% (Kyrgyzstan). New methods are needed to anticipate, forecast, and warn people of future threats, risks and hazards. A comprehensive and systematic approach must be implemented. Glacial meltwater influences volume, tim ...
... population exposed to seismic-related hazards ranges from 30% (Kazakhstan) to 100% (Kyrgyzstan). New methods are needed to anticipate, forecast, and warn people of future threats, risks and hazards. A comprehensive and systematic approach must be implemented. Glacial meltwater influences volume, tim ...
The Rain Forest—An Ecosystem In Trouble
... forests also help to control temperature by absorbing light and heat. By doing so, they help keep tropical climates from becoming too hot or too cool. Rain forests also provide recreational value. They provide tourists with the opportunity to see beautiful vegetation and unique animals that cannot b ...
... forests also help to control temperature by absorbing light and heat. By doing so, they help keep tropical climates from becoming too hot or too cool. Rain forests also provide recreational value. They provide tourists with the opportunity to see beautiful vegetation and unique animals that cannot b ...
Linking ecosystem and parasite ecology Michel Loreau,
... contribute to the provision of ecosystem services that are of value to society, but are generally not given an economic value, such as primary and secondary production, plant pollination, climate regulation, carbon sequestration, the maintenance of water quality, and the generation and maintenance o ...
... contribute to the provision of ecosystem services that are of value to society, but are generally not given an economic value, such as primary and secondary production, plant pollination, climate regulation, carbon sequestration, the maintenance of water quality, and the generation and maintenance o ...
Ecological engineering: a new direction for agricultural pest
... and semi-natural areas. This will increase scope to conserve, or reintroduce into farm landscapes, areas of non-crop vegetation. Such vegetation can have desirable consequences for pest management (Gurr et al. 2004a), value in wildlife conservation (Kinross et al., 2004), as well as catchment stabil ...
... and semi-natural areas. This will increase scope to conserve, or reintroduce into farm landscapes, areas of non-crop vegetation. Such vegetation can have desirable consequences for pest management (Gurr et al. 2004a), value in wildlife conservation (Kinross et al., 2004), as well as catchment stabil ...
Flora Survey - NT EPA - Northern Territory Government
... • Overall the coastal sand plain habitat was relatively weed-free and in healthy condition. Weed species do not occur in high densities and habitat degradation was not observed. • The majority of upland vegetation had been burnt recently but much of the sand plains remained unburnt including relativ ...
... • Overall the coastal sand plain habitat was relatively weed-free and in healthy condition. Weed species do not occur in high densities and habitat degradation was not observed. • The majority of upland vegetation had been burnt recently but much of the sand plains remained unburnt including relativ ...
Competitive relationships of Andropogon gerardii (Big Bluestem
... field conditions Andropogon from non-local provenances were consistently smaller than the local provenance plants, which supports the long-held belief that plant populations are adapted to their local environmental conditions (Turesson 1922). These results are consistent with previous field research ...
... field conditions Andropogon from non-local provenances were consistently smaller than the local provenance plants, which supports the long-held belief that plant populations are adapted to their local environmental conditions (Turesson 1922). These results are consistent with previous field research ...
Chapter 18 Success factors in the establishment of human
... intentional releases were poorly documented,we know little about which organisms were released into the environment but failed to establish. Accordingly, some researchers have turned to proxy data sets of species, on the sometimes unstated assumption that the distribution of traits in the proxy set ...
... intentional releases were poorly documented,we know little about which organisms were released into the environment but failed to establish. Accordingly, some researchers have turned to proxy data sets of species, on the sometimes unstated assumption that the distribution of traits in the proxy set ...
Swallow Hollow Nature Trail Script Outline 04
... the canopy. This is because these trees—like all plants—depend upon the process of photosynthesis to make food for energy and growth. And they need the sun to do this! This section is made entirely of Norway Spruce trees, and in this species there is a long, steady competition to be at the very top. ...
... the canopy. This is because these trees—like all plants—depend upon the process of photosynthesis to make food for energy and growth. And they need the sun to do this! This section is made entirely of Norway Spruce trees, and in this species there is a long, steady competition to be at the very top. ...
Science and Economics in the Management of an Invasive Species
... ecological interactions. For example, Barbier (2001) develops a predator–prey model that captures interspecific competition and dispersion. Barbier’s model shows that the extent to which the profits from commercial fishing are reduced by the introduction and spread of an invasive species depends cri ...
... ecological interactions. For example, Barbier (2001) develops a predator–prey model that captures interspecific competition and dispersion. Barbier’s model shows that the extent to which the profits from commercial fishing are reduced by the introduction and spread of an invasive species depends cri ...
Partitioning of space and food resources by three fish of the genus
... 1996).Therefore, size classes were (total length) small (< 13 cm), medium (13-26 cm), and large (> 26 cm). The determination of fish size near the limits of size classes implied a certain degree of subjectivity, especially when fish were several meters away from the observers. Thus, the inclusion of ...
... 1996).Therefore, size classes were (total length) small (< 13 cm), medium (13-26 cm), and large (> 26 cm). The determination of fish size near the limits of size classes implied a certain degree of subjectivity, especially when fish were several meters away from the observers. Thus, the inclusion of ...
NATURAL RESOURCES IN THE PUENTE HILLS
... and extends eastward. The hills are bisected by four large roadways and a major freeway and are virtually surrounded by urban development; however, there is evidence that animals move between the Puente Hills and the Chino Hills to the southeast. Road kill records for the last decade were obtained a ...
... and extends eastward. The hills are bisected by four large roadways and a major freeway and are virtually surrounded by urban development; however, there is evidence that animals move between the Puente Hills and the Chino Hills to the southeast. Road kill records for the last decade were obtained a ...
An ecological perspective on the deployment and design of low
... To understand and predict the effects of management interventions (e.g., coastal defences) on biodiversity, we must consider how ecological processes might be impacted not just locally (1–10 km) but also regionally (tens to hundreds of kilometers). For example, specific local effects of coastal defe ...
... To understand and predict the effects of management interventions (e.g., coastal defences) on biodiversity, we must consider how ecological processes might be impacted not just locally (1–10 km) but also regionally (tens to hundreds of kilometers). For example, specific local effects of coastal defe ...
Some Basic Principles of Habitat Use
... interacts with a species one must ask the correct questions: What component is being measured? When is it being measured? And, how many samples are necessary for meaningful results? Obviously, to even pose these questions, one has to have knowledge of an animal’s total life history strategy. Without ...
... interacts with a species one must ask the correct questions: What component is being measured? When is it being measured? And, how many samples are necessary for meaningful results? Obviously, to even pose these questions, one has to have knowledge of an animal’s total life history strategy. Without ...
Global Change and Wilderness Science
... are unaffected by human activity, then there is no wilderness left on Earth; every place is affected by increased carbon dioxide and by one or more other changes. Given the history of human presence over most of Earth, and our effectiveness in exterminating or suppressing megafauna, there hasn’t bee ...
... are unaffected by human activity, then there is no wilderness left on Earth; every place is affected by increased carbon dioxide and by one or more other changes. Given the history of human presence over most of Earth, and our effectiveness in exterminating or suppressing megafauna, there hasn’t bee ...
Urban Vegetation
... simply, some have divided urban vegetation into three types: relict (or remnant) natural communities retained as they were before urbanization, weed communities occupying new urban habitats, and artificial green spaces (Ohsawa and Da 1988). Another way of looking at urban vegetation is according to i ...
... simply, some have divided urban vegetation into three types: relict (or remnant) natural communities retained as they were before urbanization, weed communities occupying new urban habitats, and artificial green spaces (Ohsawa and Da 1988). Another way of looking at urban vegetation is according to i ...
Floral Evolution - Harvard University Center for the Environment
... In the recent past, experiments in various ecosystems analysed the relationship between biodiversity and ecosystem function. It was shown that the more complex an ecosystem is, the higher the biodiversity tends to be and the ‘healthier’ the ecosystem [2]. Nowadays, the composition and diversity of b ...
... In the recent past, experiments in various ecosystems analysed the relationship between biodiversity and ecosystem function. It was shown that the more complex an ecosystem is, the higher the biodiversity tends to be and the ‘healthier’ the ecosystem [2]. Nowadays, the composition and diversity of b ...
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.