The role of plant species size in invasibility: a
... their ability to successfully capture leftover resources (Grime 1987, 1994). Thus, large species may be more susceptible to invasion because of increased density-dependent mortality (i.e., self-thinning), and because larger species forage more coarsely for resources, leaving small parcels of resourc ...
... their ability to successfully capture leftover resources (Grime 1987, 1994). Thus, large species may be more susceptible to invasion because of increased density-dependent mortality (i.e., self-thinning), and because larger species forage more coarsely for resources, leaving small parcels of resourc ...
population density
... a deer’s habitat if the density of the deer population decreases over a given time. What is that resources may be depleted or community may have changed due to arrival of a new predator Continue ...
... a deer’s habitat if the density of the deer population decreases over a given time. What is that resources may be depleted or community may have changed due to arrival of a new predator Continue ...
FNHTB Inc (0473, FS0015 and FS0016)
... The concepts of robustness and resilience are widely used in the scientific literature, although there is considerable confusion about their meanings. The Resilience Alliance {http:// resalliance.org) makes a distinction between engineering resilience (namely, "the rate at which a system returns to ...
... The concepts of robustness and resilience are widely used in the scientific literature, although there is considerable confusion about their meanings. The Resilience Alliance {http:// resalliance.org) makes a distinction between engineering resilience (namely, "the rate at which a system returns to ...
Existing and proposed PAS recovery and threat abatement
... In areas where a koala population is present, undertake planting to restore and increase the area of koala habitat. Restoration and augmentation planting and/or direct seeding should use appropriate feed and shelter tree species in areas of degraded and/or potentially suitable habitat. Revegetation ...
... In areas where a koala population is present, undertake planting to restore and increase the area of koala habitat. Restoration and augmentation planting and/or direct seeding should use appropriate feed and shelter tree species in areas of degraded and/or potentially suitable habitat. Revegetation ...
Body size in ecological networks
... Food webs are not the only type of ecological network, although they are the most familiar. Mutualistic interactions such as pollination and seed dispersal are common [59], but such networks are rarely studied to a similar depth as is true of ‘traditional’ food webs [60]. The role of body size in pl ...
... Food webs are not the only type of ecological network, although they are the most familiar. Mutualistic interactions such as pollination and seed dispersal are common [59], but such networks are rarely studied to a similar depth as is true of ‘traditional’ food webs [60]. The role of body size in pl ...
Regulatory Strategy for the Designation of the Proposed Scott
... knowledge and use study 7 inventoried 38 documented ethno-historic sites and 14 archaeological sites within the Scott Islands and the surrounding waters. The data compiled for this project indicate that the Scott Islands and surrounding marine areas were, and continue to be, significantly important ...
... knowledge and use study 7 inventoried 38 documented ethno-historic sites and 14 archaeological sites within the Scott Islands and the surrounding waters. The data compiled for this project indicate that the Scott Islands and surrounding marine areas were, and continue to be, significantly important ...
AND SPECIES RICHNESS
... complementarityin resourceuse, if differentspecies use different resources.In this case, the productivityof an assemblageof species will be greaterthanthe productivityof any single species. Also, the total resource spectrumwill be more completely used in the more species-richsystem. Empiricalevidenc ...
... complementarityin resourceuse, if differentspecies use different resources.In this case, the productivityof an assemblageof species will be greaterthanthe productivityof any single species. Also, the total resource spectrumwill be more completely used in the more species-richsystem. Empiricalevidenc ...
... community structure through both direct (e.g., Kitchell et al. 1997) and indirect pathways (e.g., Werner et al. 1983; Romare & Hansson 2003). Alterations to trophic structure, such as the establishment of nonnative species, can have significant impacts on community structure (e.g., Reissig et al. 20 ...
Groote Eylandt group - Anindilyakwa Land Council
... Outside of the mining leases, environmental pressures on Groote Eylandt and the associated islands appear to be generally more subdued than for most of mainland Northern Territory, with relatively low richness and density of feral animals, a restricted distribution of weeds and apparently relatively ...
... Outside of the mining leases, environmental pressures on Groote Eylandt and the associated islands appear to be generally more subdued than for most of mainland Northern Territory, with relatively low richness and density of feral animals, a restricted distribution of weeds and apparently relatively ...
The role of abiotic and biotic factors in determining coexistence of
... Determining the factors that influence a species’ range in both ecological and evolutionary time has major implications for understanding contemporary patterns of species distributions as well as the structure of communities and ecosystems (following MacArthur 1972, Ricklefs and Schluter 1993, Wiens ...
... Determining the factors that influence a species’ range in both ecological and evolutionary time has major implications for understanding contemporary patterns of species distributions as well as the structure of communities and ecosystems (following MacArthur 1972, Ricklefs and Schluter 1993, Wiens ...
2a Dunes and Beaches
... and dune grassland are likely to be sensitive to coastal dynamics, shoreline management responses and changes in management regimes. The small scale traditional coastal villages and farms are sensitive to medium to large scale expansion of modern housing and industry. The open and expansive views to ...
... and dune grassland are likely to be sensitive to coastal dynamics, shoreline management responses and changes in management regimes. The small scale traditional coastal villages and farms are sensitive to medium to large scale expansion of modern housing and industry. The open and expansive views to ...
A conceptual model for conservation planning
... have already been met by the current suite. The second difference is one of emphasis rather than methodology. The focal species approach focuses primarily on selecting the species upon which to base conservation planning. The landscape species approach focuses on how planning efforts should strive t ...
... have already been met by the current suite. The second difference is one of emphasis rather than methodology. The focal species approach focuses primarily on selecting the species upon which to base conservation planning. The landscape species approach focuses on how planning efforts should strive t ...
Mark Bachmann – The Role of Wetland Restoration on Private Land
... Mt Burr Swamp – current condition and impact of drains ...
... Mt Burr Swamp – current condition and impact of drains ...
Derivation of the Extrinsic Values of Biological Diversity from Its
... spiritual value in wilderness, whereas rural people may perceive wilderness areas as wasted resources. Simaika and Samways (2010) argue that biophilia and biophobia are learned and not innate. Arguments that children need a greater connection to nature in order to lay a foundation for environmental ...
... spiritual value in wilderness, whereas rural people may perceive wilderness areas as wasted resources. Simaika and Samways (2010) argue that biophilia and biophobia are learned and not innate. Arguments that children need a greater connection to nature in order to lay a foundation for environmental ...
stc5_12_ssap_btg_0
... Wymenga 2000, Teunissen et al. 2004). The present annual decline is estimated at c. 5% on a national scale (Teunissen & Soldaat 2006), resulting in a current population of c. 55,000 pairs (SOVON, W. Teunissen pers. com.). This number may even be lower, as in Fryslân, where half of the Dutch populati ...
... Wymenga 2000, Teunissen et al. 2004). The present annual decline is estimated at c. 5% on a national scale (Teunissen & Soldaat 2006), resulting in a current population of c. 55,000 pairs (SOVON, W. Teunissen pers. com.). This number may even be lower, as in Fryslân, where half of the Dutch populati ...
oregon`s groundfish fisheries and investigations in 2008
... study area, which was largely completed in fall 2008. We identified 9 taxa to species and 6 species groupings. Blue rockfish were the most abundant species observed (30%; n = 149), followed closely by black rockfish (28%; n = 138), and both species were primarily observed in bedrock and large boulde ...
... study area, which was largely completed in fall 2008. We identified 9 taxa to species and 6 species groupings. Blue rockfish were the most abundant species observed (30%; n = 149), followed closely by black rockfish (28%; n = 138), and both species were primarily observed in bedrock and large boulde ...
Course Competencies Template
... Describing how the First and Second Laws of Thermodynamics govern energy flow in an ecosystem and help determine the efficiency of energy transfer. Comparing biomass and energy pyramids. Describing the energy flow through trophic levels. Illustrating a food web comprised of local examples of flora a ...
... Describing how the First and Second Laws of Thermodynamics govern energy flow in an ecosystem and help determine the efficiency of energy transfer. Comparing biomass and energy pyramids. Describing the energy flow through trophic levels. Illustrating a food web comprised of local examples of flora a ...
Introduction to Natural Heritage
... • There are numerous constricts to describe natural systems at an intercontinental scale. The WWF version is depicted here. • Ecozones are the largest unit of measurement; ecoregions are the next. • Ecozone (also known as biogeographic realm) is the largest scale division of the earth’s surface base ...
... • There are numerous constricts to describe natural systems at an intercontinental scale. The WWF version is depicted here. • Ecozones are the largest unit of measurement; ecoregions are the next. • Ecozone (also known as biogeographic realm) is the largest scale division of the earth’s surface base ...
Ecology and evolution of negative and positive interactions in
... South America and the Caribbean, from southern Canada to Patagonia, across a wide range of vegetation types (e.g. tropical and temperate forests, Andean high-altitude vegetation and deserts). The role of cacti in the maintenance of ecosystem functioning, and the long history of their use by humans i ...
... South America and the Caribbean, from southern Canada to Patagonia, across a wide range of vegetation types (e.g. tropical and temperate forests, Andean high-altitude vegetation and deserts). The role of cacti in the maintenance of ecosystem functioning, and the long history of their use by humans i ...
Local diversity of arable weeds increases with landscape
... Patterns of plant diversity are often related to local site conditions and to competitive interactions, but landscape context may also be important for local plant species richness. This is shown here by analysing the relationship between landscape complexity and local species richness of arable wee ...
... Patterns of plant diversity are often related to local site conditions and to competitive interactions, but landscape context may also be important for local plant species richness. This is shown here by analysing the relationship between landscape complexity and local species richness of arable wee ...
Beavers and the Environment
... may actually depend on beaver ponds for their survivalxix. Frogs, salamanders and toads are the hallmark of a healthy beaver pond. Towards the end of summer last year limited frog song could be heard at our beaver pond, which had not been documented before. Now a strong chorus of many pacific tree f ...
... may actually depend on beaver ponds for their survivalxix. Frogs, salamanders and toads are the hallmark of a healthy beaver pond. Towards the end of summer last year limited frog song could be heard at our beaver pond, which had not been documented before. Now a strong chorus of many pacific tree f ...
Landscape elements as potential barriers and corridors for bees
... parasitism rates of trap-nesting bees and wasps and the functional groups of wasps. The random factor corrected for the fact that grass strips of different isolation level surrounding one grassland were not independent from each other. Abundances of Symmorphus spp. were too low to conduct a linear m ...
... parasitism rates of trap-nesting bees and wasps and the functional groups of wasps. The random factor corrected for the fact that grass strips of different isolation level surrounding one grassland were not independent from each other. Abundances of Symmorphus spp. were too low to conduct a linear m ...
Nature-based Solutions: New Influence for
... would also fit with this definition providing that they should contribute to preserving biodiversity and managing or restoring ecosystems sustainably while delivering a range of ES. In the case of agro-ecosystems or inner city green spaces, e. g., it would be important to consider ecological complex ...
... would also fit with this definition providing that they should contribute to preserving biodiversity and managing or restoring ecosystems sustainably while delivering a range of ES. In the case of agro-ecosystems or inner city green spaces, e. g., it would be important to consider ecological complex ...
Reproductive Ecology of Flowering Plants: A Manual
... incidence of endemism. For the sake of short-term gains, vast areas of wilderness have been destroyed. However, the sustainability of whatever biodiversity is still available in various ecosystems is seriously threatened by continuing human need. Unless effective measures are taken to salvage biodiv ...
... incidence of endemism. For the sake of short-term gains, vast areas of wilderness have been destroyed. However, the sustainability of whatever biodiversity is still available in various ecosystems is seriously threatened by continuing human need. Unless effective measures are taken to salvage biodiv ...
Weighting and indirect effects identify keystone species in food webs
... Sanders et al. 2013). Both empirical (Sanders et al. 2013) and theoretical (Stouffer & Bascompte 2011; S€ aterberg et al. 2013) studies show that secondary extinctions can occur even when a species is more than one trophic link away from the primary extinction. Recent studies that used a static stru ...
... Sanders et al. 2013). Both empirical (Sanders et al. 2013) and theoretical (Stouffer & Bascompte 2011; S€ aterberg et al. 2013) studies show that secondary extinctions can occur even when a species is more than one trophic link away from the primary extinction. Recent studies that used a static stru ...
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.