Cirripedia: The Barnacles - Marine Biodiversity Center
... the Thoracica form intricate symbiotic associations with larger organisms such as whales, sea snakes, lobsters, medusae, corals, and sponges. A few have become nutritionally dependent on sharks, worms, or corals, which in earlier stages of their evolution they exploited simply for support or protect ...
... the Thoracica form intricate symbiotic associations with larger organisms such as whales, sea snakes, lobsters, medusae, corals, and sponges. A few have become nutritionally dependent on sharks, worms, or corals, which in earlier stages of their evolution they exploited simply for support or protect ...
Evaluating the role of the dingo as a trophic
... predation induced the wallabies to reproduce yearround rather than seasonally or episodically, reducing the potential for predator-swamping and potentially exposing the wallabies to a greater size-range of predators. This could be an example of a top predator ...
... predation induced the wallabies to reproduce yearround rather than seasonally or episodically, reducing the potential for predator-swamping and potentially exposing the wallabies to a greater size-range of predators. This could be an example of a top predator ...
2. Pest Animal Management in the Glenelg Hopkins Region
... (Fig. 1). This invasion curve is useful in determining the purpose of a pest animal management program. Preventing the introduction and spread of pest animals into a region is the most cost-effective technique for managing pest animals. For this situation, a “species-led” approach should be applied. ...
... (Fig. 1). This invasion curve is useful in determining the purpose of a pest animal management program. Preventing the introduction and spread of pest animals into a region is the most cost-effective technique for managing pest animals. For this situation, a “species-led” approach should be applied. ...
Demographic response of tundra small mammals to a snow fencing
... slopes and hills. The second is on Herschel Island, Yukon Territory (69°34′N, 138°54′ W). It is a post-glacial island (112 km2) composed mostly of upland habitats dominated by tussock tundra and dwarf shrub heath. The third is at Komakuk Beach, Ivvavik National Park, on the North Slope of Yukon Terr ...
... slopes and hills. The second is on Herschel Island, Yukon Territory (69°34′N, 138°54′ W). It is a post-glacial island (112 km2) composed mostly of upland habitats dominated by tussock tundra and dwarf shrub heath. The third is at Komakuk Beach, Ivvavik National Park, on the North Slope of Yukon Terr ...
PDF
... LEPS Langley Environmental Partners Society LEPS Facts Through direct restoration activity, public education, and by serving as a resource for environmental and community groups, LEPS aims to protect and restore the natural environment of Langley and the Fraser Valley and foster balanced and sustain ...
... LEPS Langley Environmental Partners Society LEPS Facts Through direct restoration activity, public education, and by serving as a resource for environmental and community groups, LEPS aims to protect and restore the natural environment of Langley and the Fraser Valley and foster balanced and sustain ...
Chapter 4 – BIOLOGICAL CONTROL
... biocontrol programs may fail for a variety of reasons. Some biocontrol agents never establish, or it may take repeated releases to establish viable populations. Some biocontrol agents may become established, but then have little or no detectable impact on the targeted pest (Greathead 1995). Some of ...
... biocontrol programs may fail for a variety of reasons. Some biocontrol agents never establish, or it may take repeated releases to establish viable populations. Some biocontrol agents may become established, but then have little or no detectable impact on the targeted pest (Greathead 1995). Some of ...
Sponge Systematics by Starfish: Predators
... and (4) population-size-dependent vulnerability to extinction depend on knowing how many species are present, which individuals fall into which species, and how large the populations of each species are. Predictions about shifts in distribution patterns or losses of biodiversity that result from cha ...
... and (4) population-size-dependent vulnerability to extinction depend on knowing how many species are present, which individuals fall into which species, and how large the populations of each species are. Predictions about shifts in distribution patterns or losses of biodiversity that result from cha ...
Topological explanations, robustness and the multirealisability debate.
... network, mutations will not alter the phenotypes Explains also evolution from low to high fitness with drift (through a neutral network) Genetic robustness of some genotypes is the topological structure of the GP map, and the specific position of the genotype x in this structure. Once again, no mech ...
... network, mutations will not alter the phenotypes Explains also evolution from low to high fitness with drift (through a neutral network) Genetic robustness of some genotypes is the topological structure of the GP map, and the specific position of the genotype x in this structure. Once again, no mech ...
The ecological consequences of habitat fragmentation
... fragmentation as the landscape-level phenomenon that it truly is, not as a patch-level phenomenon. Much of what the study of habitat fragmentation is concerned with today is the ecological consequences of land-use change for organisms living in networks of remnant patches surrounded by a mosaic of m ...
... fragmentation as the landscape-level phenomenon that it truly is, not as a patch-level phenomenon. Much of what the study of habitat fragmentation is concerned with today is the ecological consequences of land-use change for organisms living in networks of remnant patches surrounded by a mosaic of m ...
Restoration ecology and conservation biology
... With, 1997; Allen et al., 1997). While this is a laudable activity, it also re¯ects our roots as academics who honor basic over applied research. I think we need to clearly distinguish between the genuine value of having deep conceptual roots, and the reality that we have a monumental operational ta ...
... With, 1997; Allen et al., 1997). While this is a laudable activity, it also re¯ects our roots as academics who honor basic over applied research. I think we need to clearly distinguish between the genuine value of having deep conceptual roots, and the reality that we have a monumental operational ta ...
Threatened Species Strategy for Tasmania
... listed species can be readily identified. By addressing these threats across the State, the conservation of many species can be achieved in an efficient and cost effective manner. However, it is clear that some species listed as vulnerable or endangered are in need of immediate and individual attent ...
... listed species can be readily identified. By addressing these threats across the State, the conservation of many species can be achieved in an efficient and cost effective manner. However, it is clear that some species listed as vulnerable or endangered are in need of immediate and individual attent ...
Genetic Tests for Ecological and Allopatric Speciation in
... very long time, about six to eight million years. Now they have met, we can genetically test for reproductive isolation. However, when we use selectively neutral markers from the nuclear genome, on this naturally replicated system, we can see that these anoles are freely exchanging genes and not beh ...
... very long time, about six to eight million years. Now they have met, we can genetically test for reproductive isolation. However, when we use selectively neutral markers from the nuclear genome, on this naturally replicated system, we can see that these anoles are freely exchanging genes and not beh ...
exploring species diversity and molecular evolution of arachnida
... The congruence in patterns of sequence variation across different taxonomic lineages allows the use of DNA barcodes to explore biodiversity in groups which lack a well-developed taxonomic framework. It facilitates rapid diversity assessment in such cases by enabling the delineation of MOTUs, molecul ...
... The congruence in patterns of sequence variation across different taxonomic lineages allows the use of DNA barcodes to explore biodiversity in groups which lack a well-developed taxonomic framework. It facilitates rapid diversity assessment in such cases by enabling the delineation of MOTUs, molecul ...
here - Caroni Swamp RDI
... Caroni Swamp. As such, this project seeks to build on the existing knowledge of the distribution and abundance of the migratory bird species at and around the Caroni Swamp. This project is assessing the abundance of the passerine bird species at and around the swamp through the use of mist netting a ...
... Caroni Swamp. As such, this project seeks to build on the existing knowledge of the distribution and abundance of the migratory bird species at and around the Caroni Swamp. This project is assessing the abundance of the passerine bird species at and around the swamp through the use of mist netting a ...
assessment
... essential data on the ecology and behaviour of their populations not only generates income, it transforms the scouts into Grevy’s Zebra champions which in turn helps change community attitudes and gather essential information when populations are at risk (Low et al. 2009). In addition, in Kenya Grev ...
... essential data on the ecology and behaviour of their populations not only generates income, it transforms the scouts into Grevy’s Zebra champions which in turn helps change community attitudes and gather essential information when populations are at risk (Low et al. 2009). In addition, in Kenya Grev ...
The habitat condition data dictionary
... information but planning is happening at a larger scale than data collection Assessing restoration effectiveness requires knowledge of habitat condition before and after restoration Understanding the linkage between population status and habitat condition Understanding the linkage between restoratio ...
... information but planning is happening at a larger scale than data collection Assessing restoration effectiveness requires knowledge of habitat condition before and after restoration Understanding the linkage between population status and habitat condition Understanding the linkage between restoratio ...
The Adjutant 2008, Volume 29 - Army Ornithological Society
... the 10 seasons of monitoring; 82 (25%) were due to Myna predation, 67 (20%) to rat predation, 168 (51%) to desertion and 14 (4%) to unknown factors. At any one time the maximum number of Mynas seen in the Sooty Tern breeding colony was 21. Mynas were observed in the tern colonies on 128 occasions (6 ...
... the 10 seasons of monitoring; 82 (25%) were due to Myna predation, 67 (20%) to rat predation, 168 (51%) to desertion and 14 (4%) to unknown factors. At any one time the maximum number of Mynas seen in the Sooty Tern breeding colony was 21. Mynas were observed in the tern colonies on 128 occasions (6 ...
A Five Year Species Action Framework: making a difference for
... (which could affect the ‘natural range’ of plants and animals, and those species considered ‘native’ at any given place), SNH’s long-term aim for Scotland’s species is for thriving and, where possible, self-sustaining and selfregulating populations of native species, distributed throughout their nat ...
... (which could affect the ‘natural range’ of plants and animals, and those species considered ‘native’ at any given place), SNH’s long-term aim for Scotland’s species is for thriving and, where possible, self-sustaining and selfregulating populations of native species, distributed throughout their nat ...
Intra-host competition between co-infecting digeneans within a bivalve second intermediate host: dominance by priority-effect or taking advantage of others?
... availability – C. australis only (n = 24), Acanthoparyphium only (n = 20), C. australis and Acanthoparyphium simultaneously (n = 18), C. australis followed by Acanthoparyphium (n = 20), and Acanthoparyphium followed by C. australis (n = 17). Each cockle was exposed to a total of 60 cercariae. In mix ...
... availability – C. australis only (n = 24), Acanthoparyphium only (n = 20), C. australis and Acanthoparyphium simultaneously (n = 18), C. australis followed by Acanthoparyphium (n = 20), and Acanthoparyphium followed by C. australis (n = 17). Each cockle was exposed to a total of 60 cercariae. In mix ...
Dying to be clean: pen trials of novel cat and fox control devices
... toxin carries a reduced non-target risk compared with broad-spectrum 1080. Furthermore, the toxic effects of PAPP can be readily reversed by an antidote, methylene blue, allowing treatment of non-target wildlife or domestic animals that are inadvertently poisoned (Eason et al. 2010). The antidote is ...
... toxin carries a reduced non-target risk compared with broad-spectrum 1080. Furthermore, the toxic effects of PAPP can be readily reversed by an antidote, methylene blue, allowing treatment of non-target wildlife or domestic animals that are inadvertently poisoned (Eason et al. 2010). The antidote is ...
(2007). Targets for ecosystem repair in riparian ecosystems
... resilience to invasion by alien plants, except in some situations of closed alien stands (75-100% canopy cover). This means that where alien invasion is the only (or major) disturbance at a site, and invasion intensity is <75%, the recovery of riparian vegetation structure and functioning is a reali ...
... resilience to invasion by alien plants, except in some situations of closed alien stands (75-100% canopy cover). This means that where alien invasion is the only (or major) disturbance at a site, and invasion intensity is <75%, the recovery of riparian vegetation structure and functioning is a reali ...
Western Screech-Owl kennicottii subspecies,Megascops kennicottii
... declines observed in southern parts of the range in Metro Vancouver, Victoria and the Gulf Islands areas and declines likely in northern parts, but magnitude is unknown. Crude estimates suggest overall declines of 20 to 30% over the last 10 to 15 years. Criterion B (Small Distribution Range and Decl ...
... declines observed in southern parts of the range in Metro Vancouver, Victoria and the Gulf Islands areas and declines likely in northern parts, but magnitude is unknown. Crude estimates suggest overall declines of 20 to 30% over the last 10 to 15 years. Criterion B (Small Distribution Range and Decl ...
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.