Prioritisation of high conservation status offshore islands
... Priority islands ran ged i n area fro m 2 02 h a (Boodie I sland, WA) to 578 577 ha (Melville Isl and, NT) . Some are near the ma inland (e.g. Bribie and No rth Stradbr oke i slands, QLD ), and may ev en b e linked by sand spi ts at low t ides (e.g. D olphin Is land, WA ), others ar e ext remely r e ...
... Priority islands ran ged i n area fro m 2 02 h a (Boodie I sland, WA) to 578 577 ha (Melville Isl and, NT) . Some are near the ma inland (e.g. Bribie and No rth Stradbr oke i slands, QLD ), and may ev en b e linked by sand spi ts at low t ides (e.g. D olphin Is land, WA ), others ar e ext remely r e ...
The conservation value of regrowth native plant communities: a
... With the exception of one study of clearing of Brigalow in Queensland, there are no before and after / control and impact manipulative studies addressing the topic. Many papers are inferential in their nature and attempt to reconstruct the nature of vegetation prior to clearing. Literature dealing w ...
... With the exception of one study of clearing of Brigalow in Queensland, there are no before and after / control and impact manipulative studies addressing the topic. Many papers are inferential in their nature and attempt to reconstruct the nature of vegetation prior to clearing. Literature dealing w ...
Download Tech Report #129. Smith, C. W., J. Denslow, and S. Hight. Sept. 2002. Proceedings of a workshop on biological control of invasive plants in native Hawaiian ecosystems
... constitute substantial problems for conservation because they compete with native species or so alter ecosystem processes that whole communities are changed (Vitousek and Walker 1989). In spite of the magnitude of the invasive weed problem in Hawai'i, we are unable to predict with any confidence whi ...
... constitute substantial problems for conservation because they compete with native species or so alter ecosystem processes that whole communities are changed (Vitousek and Walker 1989). In spite of the magnitude of the invasive weed problem in Hawai'i, we are unable to predict with any confidence whi ...
consumer species richness and autotrophic biomass
... Consumers were added as small initial populations (10–25 cells) of each consumer species after algal densities had stabilized (.14 d). The small size of this inoculum (a negligible biomass for a 50-mL system) was assumed to have no significant impact on the nutrient composition of the microcosm. We ...
... Consumers were added as small initial populations (10–25 cells) of each consumer species after algal densities had stabilized (.14 d). The small size of this inoculum (a negligible biomass for a 50-mL system) was assumed to have no significant impact on the nutrient composition of the microcosm. We ...
By: David R.W. Bruinsma A Thesis
... Table 2. Site codes, patch areas, natural logarithm (ln ha) of patch areas, MSI, % hospitable matrix within 500 m, # of plots, and manipulative study site designations by focal species of tall-grass prairie study sites used to evaluate responses of grassland songbird abundance and richness to habita ...
... Table 2. Site codes, patch areas, natural logarithm (ln ha) of patch areas, MSI, % hospitable matrix within 500 m, # of plots, and manipulative study site designations by focal species of tall-grass prairie study sites used to evaluate responses of grassland songbird abundance and richness to habita ...
Changing Seascapes, Stochastic Connectivity, and Marine
... the dynamics of natural populations. Unfortunately, an often overlooked property of this potential connectivity is that it may change with time. In the marine realm, transient landscape features, such as mesoscale eddies and alongshore jets, produce potential connectivity that is highly variable in ...
... the dynamics of natural populations. Unfortunately, an often overlooked property of this potential connectivity is that it may change with time. In the marine realm, transient landscape features, such as mesoscale eddies and alongshore jets, produce potential connectivity that is highly variable in ...
in northwestern Madagascar
... few bigger rather short lived cities (e.g. Radimilahy 1997). Nevertheless, even these early settlers may have had a considerable impact on the environment. Some studies aimed to quantify the role that people played in Madagascar’s Holocene extinction (e.g. Burney et al. 2004). However, no study has ...
... few bigger rather short lived cities (e.g. Radimilahy 1997). Nevertheless, even these early settlers may have had a considerable impact on the environment. Some studies aimed to quantify the role that people played in Madagascar’s Holocene extinction (e.g. Burney et al. 2004). However, no study has ...
species interactions in intertidal food webs: prey or predation
... In most marine intertidal food webs, several co-occurring predator species interact trophically (e.g., Dayton 1971, Menge 1983, Robles and Robb 1993, Navarrete and Menge 1996). The focus of most work in these systems has been on interactions affecting the basal trophic level (filter feeders and macr ...
... In most marine intertidal food webs, several co-occurring predator species interact trophically (e.g., Dayton 1971, Menge 1983, Robles and Robb 1993, Navarrete and Menge 1996). The focus of most work in these systems has been on interactions affecting the basal trophic level (filter feeders and macr ...
04
... This table shows the number of snails, size classes, and threats to the snails in ESU A. Shaded boxes indicate that the threat is being controlled, X’s indicate that the threat is present. In some cases the threat may be present but not actively preying on A. mustelina. ...
... This table shows the number of snails, size classes, and threats to the snails in ESU A. Shaded boxes indicate that the threat is being controlled, X’s indicate that the threat is present. In some cases the threat may be present but not actively preying on A. mustelina. ...
Hawar Island Protected Area - Management Plan
... 2.1 National and International Context The Hawar Islands have major international and national significance. The Protected area provides a unique representation of a pristine Arabian Gulf ecosystem, from the supra tidal and inter tidal environments of the coastline to the seagrass beds offshore. The ...
... 2.1 National and International Context The Hawar Islands have major international and national significance. The Protected area provides a unique representation of a pristine Arabian Gulf ecosystem, from the supra tidal and inter tidal environments of the coastline to the seagrass beds offshore. The ...
How do bryophytes govern generative recruitment of vascular plants?
... alteration of the soil microclimate (moisture and temperature regimes) and retarded seedling growth in thicker and denser cushions with reduced light availability. With respect to this research question, we aimed to find easy-tomeasure bryophyte traits (Cornelissen et al., 2007) that could be used a ...
... alteration of the soil microclimate (moisture and temperature regimes) and retarded seedling growth in thicker and denser cushions with reduced light availability. With respect to this research question, we aimed to find easy-tomeasure bryophyte traits (Cornelissen et al., 2007) that could be used a ...
Measuring and monitoring Biodiversity in Tropical
... This Symposium is about biodiversity. Right at the outset, it is worthwhile pondering the difference between two words frequently used by ecologists nowadays: diversity and biodiversity. This is the distinction, as I see it, between the meanings of the two words: Diversity is a concept that was intr ...
... This Symposium is about biodiversity. Right at the outset, it is worthwhile pondering the difference between two words frequently used by ecologists nowadays: diversity and biodiversity. This is the distinction, as I see it, between the meanings of the two words: Diversity is a concept that was intr ...
The role of macrophytes in habitat structuring in aquatic
... related to the habitat structural complexity provided by these plants, exploring: i) how complexity has been viewed by ecologists, with an emphasis on macrophyte studies; ii) the pros and cons of several methods used to quantify plant complexity; iii) the consequences of habitat structuring by macro ...
... related to the habitat structural complexity provided by these plants, exploring: i) how complexity has been viewed by ecologists, with an emphasis on macrophyte studies; ii) the pros and cons of several methods used to quantify plant complexity; iii) the consequences of habitat structuring by macro ...
Conservation of the Babirusa
... the only mammal with vertically growing canine teeth. Endemic to Sulawesi, and found on a few neighbouring islands such as Buru, Mangole, Taliabu and the Togian islands, the babirusa has a very limited geographical distribution. The available evidence seems to indicate that this is because Sulawesi ...
... the only mammal with vertically growing canine teeth. Endemic to Sulawesi, and found on a few neighbouring islands such as Buru, Mangole, Taliabu and the Togian islands, the babirusa has a very limited geographical distribution. The available evidence seems to indicate that this is because Sulawesi ...
The Science of Feral Cats - American Bird Conservancy
... The “vacuum effect” refers to a situation in which a population is at carrying capacity, a scientific term that refers to the maximum number of animals that the local ecosystem can support. When an individual animal dies or is removed, the population has an opening for another individual to enter. T ...
... The “vacuum effect” refers to a situation in which a population is at carrying capacity, a scientific term that refers to the maximum number of animals that the local ecosystem can support. When an individual animal dies or is removed, the population has an opening for another individual to enter. T ...
Risk analysis of the - Belgian Biodiversity Platform
... identifying the organism and its introduction pathways that should be considered for risk analysis in relation to Belgium, (2) the risk assessment stage which includes the categorization of emerging nonnative species to determine whether the criteria for a quarantine organism are satisfied and an ev ...
... identifying the organism and its introduction pathways that should be considered for risk analysis in relation to Belgium, (2) the risk assessment stage which includes the categorization of emerging nonnative species to determine whether the criteria for a quarantine organism are satisfied and an ev ...
article - Aquatic Invasions
... 2003; Bulleri et al. 2005). The anthropogenic removal of natural shoreline in estuaries, and its replacement with artificial surfaces such as seawalls and pilings and the modification of indigenous assemblages has been shown to create windows of opportunity for NIS to colonise habitat that might hav ...
... 2003; Bulleri et al. 2005). The anthropogenic removal of natural shoreline in estuaries, and its replacement with artificial surfaces such as seawalls and pilings and the modification of indigenous assemblages has been shown to create windows of opportunity for NIS to colonise habitat that might hav ...
Factors affecting carcass use by a guild of scavengers in European
... visited by a given scavenger species and (2) the scavenging frequency, defined as the mean percentage of positive inspections of carcasses (percentage of all inspections at a carcass with a given scavenger species recorded, averaged for all carcasses). The latter reflects how frequently the scavenge ...
... visited by a given scavenger species and (2) the scavenging frequency, defined as the mean percentage of positive inspections of carcasses (percentage of all inspections at a carcass with a given scavenger species recorded, averaged for all carcasses). The latter reflects how frequently the scavenge ...
saving the hawaiian monk seal - Conservation Council for Hawai`i
... Hawaiian times to the present. Informed by local values and generations of knowledge, Hawai‘i’s fishers have traditionally shared a strong passion and deep respect for the ocean and its resources. Today, many fishers are all too familiar with modern society’s impact on our marine environment, having ...
... Hawaiian times to the present. Informed by local values and generations of knowledge, Hawai‘i’s fishers have traditionally shared a strong passion and deep respect for the ocean and its resources. Today, many fishers are all too familiar with modern society’s impact on our marine environment, having ...
desert bighorn sheep of new mexico
... In 1989, 130 bighorn were estimated within 4 free-ranging populations. Between 1989 and 1999, 130 bighorn were removed from Red Rock to establish new herds and supplement existing herds. By 1999, only 220 bighorn were estimated within 7 populations with another 100 bighorn in Red Rock. Clearly, most ...
... In 1989, 130 bighorn were estimated within 4 free-ranging populations. Between 1989 and 1999, 130 bighorn were removed from Red Rock to establish new herds and supplement existing herds. By 1999, only 220 bighorn were estimated within 7 populations with another 100 bighorn in Red Rock. Clearly, most ...
saving the hawaiian monk seal - Conservation Council for Hawai`i
... Hawaiian times to the present. Informed by local values and generations of knowledge, Hawai‘i’s fishers have traditionally shared a strong passion and deep respect for the ocean and its resources. Today, many fishers are all too familiar with modern society’s impact on our marine environment, having ...
... Hawaiian times to the present. Informed by local values and generations of knowledge, Hawai‘i’s fishers have traditionally shared a strong passion and deep respect for the ocean and its resources. Today, many fishers are all too familiar with modern society’s impact on our marine environment, having ...
Vulnerability of Habitats and Priority Species
... ›› The results also corroborate that many conventional habitat conservation practices are appropriate for conserving species and habitats in the long term. This should assure biologists and land managers that many existing conservation efforts that use these conventional practices are likely to succ ...
... ›› The results also corroborate that many conventional habitat conservation practices are appropriate for conserving species and habitats in the long term. This should assure biologists and land managers that many existing conservation efforts that use these conventional practices are likely to succ ...
Threatened Weta recovery plan
... Weta are large bodied, slow moving insects. They belong to the large Order Orthoptera which also contains grasshoppers, locusts, crickets, and katydids. There are over 70 species of weta in New Zealand, all of which are endemic, and 16 of these species are considered threatened. The word weta is a ...
... Weta are large bodied, slow moving insects. They belong to the large Order Orthoptera which also contains grasshoppers, locusts, crickets, and katydids. There are over 70 species of weta in New Zealand, all of which are endemic, and 16 of these species are considered threatened. The word weta is a ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.