View our Predator Control Strategy
... providing guidance on the most appropriate pest control techniques and on-ground protocols, for agencies that participate in the Western Port Pest Animal Group. The strategy also provides guidance on the areas for predator control, broadly highlighting areas where predator control activities may be ...
... providing guidance on the most appropriate pest control techniques and on-ground protocols, for agencies that participate in the Western Port Pest Animal Group. The strategy also provides guidance on the areas for predator control, broadly highlighting areas where predator control activities may be ...
complaint - Earthjustice
... area were exposed to levels of sound much greater than those known to strongly disrupt their behavior, and that the number of porpoise strandings observed in this period was statistically significantly higher than in other years. Gulf of Alaska 2004—Coincident with a joint training exercise conducte ...
... area were exposed to levels of sound much greater than those known to strongly disrupt their behavior, and that the number of porpoise strandings observed in this period was statistically significantly higher than in other years. Gulf of Alaska 2004—Coincident with a joint training exercise conducte ...
Fragoso 2005 Trophic strucure tropics
... These bruchid beetles specialize on Attalea seeds, although they are not confined to the genus (Delobelle et al. 1995; Silvius 1999). They appear to be the dominant representatives of the herbivorous trophic level supported directly by Attalea fruits and seeds (Fragoso 1997a; Fragoso et al. 2003; Si ...
... These bruchid beetles specialize on Attalea seeds, although they are not confined to the genus (Delobelle et al. 1995; Silvius 1999). They appear to be the dominant representatives of the herbivorous trophic level supported directly by Attalea fruits and seeds (Fragoso 1997a; Fragoso et al. 2003; Si ...
Community structure of snakes in a human
... We studied occupancy, species richness, abundance, and size distributions of snakes on habitat patches that ranged from 0.2 to 120 ha within a landscape undergoing substantial land-use changes. Additionally, we examined the role of intraguild predation in structuring snake communities by equipping ® ...
... We studied occupancy, species richness, abundance, and size distributions of snakes on habitat patches that ranged from 0.2 to 120 ha within a landscape undergoing substantial land-use changes. Additionally, we examined the role of intraguild predation in structuring snake communities by equipping ® ...
Habitat alteration and community-level effects of an exotic mussel
... assemblages in many ways. Commonly considered mechanisms by which exotics affect other species include competition, predation, parasitism, and alterations of food webs or nutrient cycling (Vitousek 1990, Williamson 1996). Considered much less frequently are the effects of habitat-modifying species, ...
... assemblages in many ways. Commonly considered mechanisms by which exotics affect other species include competition, predation, parasitism, and alterations of food webs or nutrient cycling (Vitousek 1990, Williamson 1996). Considered much less frequently are the effects of habitat-modifying species, ...
The Vertebrate Fauna of Northern Yengo National Park
... the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a highly diverse assemblage of fauna. There are at least 256 native terrestrial vertebrate fauna species kn ...
... the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a highly diverse assemblage of fauna. There are at least 256 native terrestrial vertebrate fauna species kn ...
character release following extinction in a caribbean reef
... workers confronted with the origin of that diversity are perplexed at how so many apparently similar species have evolved. Although a great deal of ecological work has focussed on the idea of redundant species on reefs and their role in ecosystem function (Done et al. 1996), there is very little, if ...
... workers confronted with the origin of that diversity are perplexed at how so many apparently similar species have evolved. Although a great deal of ecological work has focussed on the idea of redundant species on reefs and their role in ecosystem function (Done et al. 1996), there is very little, if ...
The Vertebrate Fauna of Northern Yengo National Park
... the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a highly diverse assemblage of fauna. There are at least 256 native terrestrial vertebrate fauna species kn ...
... the southern escarpment of the Hunter Valley. It lies at the convergence of a number of environmental and climatic influences from the north, west and east and as a result the reserve supports a highly diverse assemblage of fauna. There are at least 256 native terrestrial vertebrate fauna species kn ...
Report on identification of keystone species
... communities, where a stable community of 15 species existed with the presence of a predatory starfish. If the starfish was removed, mussel growth was uncontrolled, leading to a mussel-dominated community comprising of only eight other species. Marine keystone species are commonly apex predators in a ...
... communities, where a stable community of 15 species existed with the presence of a predatory starfish. If the starfish was removed, mussel growth was uncontrolled, leading to a mussel-dominated community comprising of only eight other species. Marine keystone species are commonly apex predators in a ...
These_4_niveau 2 et 3 - Chaire CRSNG/Hydro
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
... relation between biodiversity and ecosystem functioning (BEF) began. After more than 20 years of BEF research, general consensus leans toward increasing productivity, resource capture and decomposition with diversity. The two main mechanisms proposed to underlie this positive relationship are niche ...
Supplementary Online Material
... e.g. through changes in phenology of both interacting species. Double headed arrows indicate competitive interactions. For simplicity, competitive interactions are only depicted between plants, and between native and exotic species, but species at any trophic level may compete with others. ...
... e.g. through changes in phenology of both interacting species. Double headed arrows indicate competitive interactions. For simplicity, competitive interactions are only depicted between plants, and between native and exotic species, but species at any trophic level may compete with others. ...
Investigating a Competitive Two Species System that Produces
... Clemens (1916) had an alternative way of looking at the succession cycle above. He proposed there are two main mechanisms by which succession can take place. One is through changes from outside the system, termed allogenic succession. An example is that a fire or a tree falling changes the condition ...
... Clemens (1916) had an alternative way of looking at the succession cycle above. He proposed there are two main mechanisms by which succession can take place. One is through changes from outside the system, termed allogenic succession. An example is that a fire or a tree falling changes the condition ...
The assembly and disassembly of ecological networks in a changing world
... Self-organised criticality turns out to be present at multiple levels of biological organisation. From gene regulatory networks in which even a small mutation can cause dramatic effects on the phenotype of an individual, through small changes in molecular metabolic pathways that can cause lethal dis ...
... Self-organised criticality turns out to be present at multiple levels of biological organisation. From gene regulatory networks in which even a small mutation can cause dramatic effects on the phenotype of an individual, through small changes in molecular metabolic pathways that can cause lethal dis ...
Maritime Ringlet (Coenonympha nipisiquit)
... Population sizes and trends The Maritime Ringlet generally occurs in dense populations in relatively small areas. It is found in an area of only 76km2 (64km2 when introduced populations are removed from the calculations). It has a total of 27,000 to 37,000 adults in four populations, comprising one ...
... Population sizes and trends The Maritime Ringlet generally occurs in dense populations in relatively small areas. It is found in an area of only 76km2 (64km2 when introduced populations are removed from the calculations). It has a total of 27,000 to 37,000 adults in four populations, comprising one ...
Ecological Biogeography Ecological Biogeography Ecological
... The taxon with the largest biomass on Earth: ANTS “The world is a living tissue of ants with minor infestations of trees, birds, and humans. The ants see humans as big slabs of animated but not very well defended food. The ability to move, far from being a deterrent, serves a guarantee of freshness. ...
... The taxon with the largest biomass on Earth: ANTS “The world is a living tissue of ants with minor infestations of trees, birds, and humans. The ants see humans as big slabs of animated but not very well defended food. The ability to move, far from being a deterrent, serves a guarantee of freshness. ...
Evidence and hypothesis in biogeography
... maps, over time) of biotic distributions are descriptive and in practice range from the simple to the complex, from the local to the global. The When may be part empirical (during what time periods did/does the clade live) and part hypothesis [a clade is hypothesized to have split from its sister cl ...
... maps, over time) of biotic distributions are descriptive and in practice range from the simple to the complex, from the local to the global. The When may be part empirical (during what time periods did/does the clade live) and part hypothesis [a clade is hypothesized to have split from its sister cl ...
Environmental context determines multi-trophic effects of consumer species loss
... into the design of this experiment. Mussels and molluscan grazers were removed manually from treatments to simulate loss of these species. Whelks were added to the plots if required for the treatment at a density of one individual per plot. Cages and treatments were checked regularly (approximately ...
... into the design of this experiment. Mussels and molluscan grazers were removed manually from treatments to simulate loss of these species. Whelks were added to the plots if required for the treatment at a density of one individual per plot. Cages and treatments were checked regularly (approximately ...
Sander vitreus
... Results are given in Figure 3. The model predicted the highest mean suitability for the Thompson River followed by the Upper Fraser, the Arctic and Columbia areas. The lowest level of environmental suitability was predicted for Vancouver Island and the Central Coast. ...
... Results are given in Figure 3. The model predicted the highest mean suitability for the Thompson River followed by the Upper Fraser, the Arctic and Columbia areas. The lowest level of environmental suitability was predicted for Vancouver Island and the Central Coast. ...
Taxonomic and functional approaches of trophic interactions
... Given the key role of large herbivores on species and functional plant diversity, we aimed at better understanding the relationship between herbivory and plant communities mainly at a finescale, in order to reconcile objectives of population management and plant conservation. For this purpose, we us ...
... Given the key role of large herbivores on species and functional plant diversity, we aimed at better understanding the relationship between herbivory and plant communities mainly at a finescale, in order to reconcile objectives of population management and plant conservation. For this purpose, we us ...
Ecological processes responsible for species co
... 1994). Conversely, this similarity may lead to intense competition and eventual exclusion resulting in rare co-occurrence of the two species (Bowers and Brown 1982). When species do co-exist, competition theory suggests that these species will possess characteristics that minimize competitive intera ...
... 1994). Conversely, this similarity may lead to intense competition and eventual exclusion resulting in rare co-occurrence of the two species (Bowers and Brown 1982). When species do co-exist, competition theory suggests that these species will possess characteristics that minimize competitive intera ...
Invader of the Month: Feral Cats
... animals per square mile – much higher than all mid-sized native predators. Given ample food supplies and high reproductive rates, cat densities can exceed nine animals per acre. Rural cats have access to many animals and have the greatest impact. Small mammals like mice and voles make up about 70 pe ...
... animals per square mile – much higher than all mid-sized native predators. Given ample food supplies and high reproductive rates, cat densities can exceed nine animals per acre. Rural cats have access to many animals and have the greatest impact. Small mammals like mice and voles make up about 70 pe ...
Submerged Aquatic Vegetation
... (Costa, 1988). The plants may reproduce vegetatively by lateral shoots or sexually through flowering, pollination, and seed germination. Eelgrass is perennial, but annual populations do exist in shallow areas where ice scouring, freezing, or other stresses exist. These environmental factors, as well ...
... (Costa, 1988). The plants may reproduce vegetatively by lateral shoots or sexually through flowering, pollination, and seed germination. Eelgrass is perennial, but annual populations do exist in shallow areas where ice scouring, freezing, or other stresses exist. These environmental factors, as well ...
Rain Forest in the City: Bukit Timah Nature Reserve Singapore
... of the reserves, 'their utility as a source of revenue was subordinated to their climatic and hygienic uses'. There was never any legal logging at Bukit Timah Forest Reserve and the only income derived from the reserve was from a plantation of Gutta Percha trees (Palaquium gutta), later mixed with r ...
... of the reserves, 'their utility as a source of revenue was subordinated to their climatic and hygienic uses'. There was never any legal logging at Bukit Timah Forest Reserve and the only income derived from the reserve was from a plantation of Gutta Percha trees (Palaquium gutta), later mixed with r ...
Published Version
... defense is effective in the field is mostly outstanding. Accordingly, even less is known about community-wide effects defensive symbionts are likely to exert in natural food webs by altering species interactions. This deficit has been recognized by several authors who have hence called for field exp ...
... defense is effective in the field is mostly outstanding. Accordingly, even less is known about community-wide effects defensive symbionts are likely to exert in natural food webs by altering species interactions. This deficit has been recognized by several authors who have hence called for field exp ...
Distribution of zooxanthellate zoanthid species
... Intertidal distributions limited by minimum winter air temperatures As shown in Fig. 1b and Table 1, many zooxanthellate zoanthids can be found up into the intertidal zone at southern locations but are only subtidal at more northern locations. Minimum ocean temperatures, while limiting overall distr ...
... Intertidal distributions limited by minimum winter air temperatures As shown in Fig. 1b and Table 1, many zooxanthellate zoanthids can be found up into the intertidal zone at southern locations but are only subtidal at more northern locations. Minimum ocean temperatures, while limiting overall distr ...
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.