Annual Report - Pacific Biodiversity Institute
... n a recent visit to downtown Seattle, I was awestruck by the sight of a peregrine falcon soaring high above city buildings. Nature’s fastest animal, capable of flight speeds of more than 200 mph, this magnificent bird nearly disappeared forever only 30 years ago. Luckily, a huge effort to understand ...
... n a recent visit to downtown Seattle, I was awestruck by the sight of a peregrine falcon soaring high above city buildings. Nature’s fastest animal, capable of flight speeds of more than 200 mph, this magnificent bird nearly disappeared forever only 30 years ago. Luckily, a huge effort to understand ...
AqUAtic INvAdERS
... implicated in spreading disease to livestock and humans. These rapidly reproducing mammals reach sexual maturity at four to nine months and produce up to two litters of five to six offspring per year. Once established, feral pig populations are difficult to eradicate without sustained effort. In som ...
... implicated in spreading disease to livestock and humans. These rapidly reproducing mammals reach sexual maturity at four to nine months and produce up to two litters of five to six offspring per year. Once established, feral pig populations are difficult to eradicate without sustained effort. In som ...
Eradication of feral cats on Rottnest Island, Western Australia
... programs are summarised in Table 4. This shows a decline in the number of cats caught over the years. A total of 63 cats was captured during these various exercises and of these animals, 81% were trapped in the general vicinity of the waste disposal site. All four cats trapped during this campaign w ...
... programs are summarised in Table 4. This shows a decline in the number of cats caught over the years. A total of 63 cats was captured during these various exercises and of these animals, 81% were trapped in the general vicinity of the waste disposal site. All four cats trapped during this campaign w ...
Mammalogy - Virginia Tech
... If we want to know the kinds of mammals that live on our “back 40,” we probably would not be very successful in documenting those present by relying only on our observations and without using special collection techniques. Some species are difficult to identify, many are active only at night, some a ...
... If we want to know the kinds of mammals that live on our “back 40,” we probably would not be very successful in documenting those present by relying only on our observations and without using special collection techniques. Some species are difficult to identify, many are active only at night, some a ...
The Brigalow Belt Bioregion
... Along the eastern boundary of the Brigalow Belt are scattered patches of semi-evergreen vine thickets with bright green canopy species that are highly visible among the more silvery brigalow communities. These patches are a dry adapted form of rainforest, relics of a much wetter past. What are the i ...
... Along the eastern boundary of the Brigalow Belt are scattered patches of semi-evergreen vine thickets with bright green canopy species that are highly visible among the more silvery brigalow communities. These patches are a dry adapted form of rainforest, relics of a much wetter past. What are the i ...
Pacific Rat
... category assigned to this species indicates that once established, it could become a pest of agriculture, the environment and the community. It is therefore important that the Pacific rat does not establish further populations in the wild in Australia and that any found here are removed quickly. Pac ...
... category assigned to this species indicates that once established, it could become a pest of agriculture, the environment and the community. It is therefore important that the Pacific rat does not establish further populations in the wild in Australia and that any found here are removed quickly. Pac ...
Whitemouth Bog Ecological Reserve
... Concern under Canada’s Species at Risk Act, has been observed in the Whitemouth Bog. The provincially and nationally threatened leastbittern, the smallest member of the heron family, is also found here along with Baltimore butterflies. The Whitemouth Bog Ecological Reserve will be maintained for the ...
... Concern under Canada’s Species at Risk Act, has been observed in the Whitemouth Bog. The provincially and nationally threatened leastbittern, the smallest member of the heron family, is also found here along with Baltimore butterflies. The Whitemouth Bog Ecological Reserve will be maintained for the ...
Influence of sea temperature, substratum and wave exposure on
... composition of rocky intertidal communities in the Cape of Good Hope were examined using cluster analyses of data for biomass of 310 species on 12 rocky shores. The Cape of Good Hope forms an overlap area between the south and west coast intertidal biota of South Africa (Stephenson. 1939)and species ...
... composition of rocky intertidal communities in the Cape of Good Hope were examined using cluster analyses of data for biomass of 310 species on 12 rocky shores. The Cape of Good Hope forms an overlap area between the south and west coast intertidal biota of South Africa (Stephenson. 1939)and species ...
Independent species in independent niches behave neutrally: a
... asymptotic result in the limit of high diversity. But the absence of the zero-sum constraint makes their model less biologically realistic (in a tropical forest tree community, there is a strong zero-sum constraint because individuals are effectively competing for space), prevents nonneutral patterns ...
... asymptotic result in the limit of high diversity. But the absence of the zero-sum constraint makes their model less biologically realistic (in a tropical forest tree community, there is a strong zero-sum constraint because individuals are effectively competing for space), prevents nonneutral patterns ...
as a PDF
... dynamics behaves more like recruiting new species while losing others rather that simply recruiting more and more species through time. As a consequence, the community was still unlike the natural grassland after 15 years of fallow. We are therefore dealing with a secondary succession that seemingly ...
... dynamics behaves more like recruiting new species while losing others rather that simply recruiting more and more species through time. As a consequence, the community was still unlike the natural grassland after 15 years of fallow. We are therefore dealing with a secondary succession that seemingly ...
Population Ecology-Chapter 14 PowerPoint
... displace indigenous species to such a degree that they impact on the biodiversity in that ecosystem – Since non-indigenous species often have few predators in that area, they can reduce or eliminate indigenous species by outcompeting them for food and habitat, or by preying on them – Ex. European ra ...
... displace indigenous species to such a degree that they impact on the biodiversity in that ecosystem – Since non-indigenous species often have few predators in that area, they can reduce or eliminate indigenous species by outcompeting them for food and habitat, or by preying on them – Ex. European ra ...
Origin matters: alien consumers inflict greater damage on prey
... When we exclude non-experimental data from our analysis, alien consumers (R = 1.018) had a slightly but non-significantly (t = 1.67, P = 0.103) greater negative effect size than native consumers (R = 0.527). In a previous meta-analysis that examined predator–prey interactions among terrestrial verte ...
... When we exclude non-experimental data from our analysis, alien consumers (R = 1.018) had a slightly but non-significantly (t = 1.67, P = 0.103) greater negative effect size than native consumers (R = 0.527). In a previous meta-analysis that examined predator–prey interactions among terrestrial verte ...
Historical changes in northeastern US bee
... New York State Museum, and the Bohart Museum of Entomology (University of California, Davis). To focus the geographic extent of our study area, we used records ranging from 38° to 45° N latitude and −85° to −70° W longitude (Fig. S3). This region has the most extensive historical collections of bees ...
... New York State Museum, and the Bohart Museum of Entomology (University of California, Davis). To focus the geographic extent of our study area, we used records ranging from 38° to 45° N latitude and −85° to −70° W longitude (Fig. S3). This region has the most extensive historical collections of bees ...
"Monsters are coming: cryptozoology" pdf file
... and 10 metres long with a long neck and a small head, two or three humps on its back, four fin-like limbs and a tail, sighted both in the water and on dry land. This creature, very similar to a plesiosaur, could not have survived the passage of millenniums in a place visited by thousands of tourists ...
... and 10 metres long with a long neck and a small head, two or three humps on its back, four fin-like limbs and a tail, sighted both in the water and on dry land. This creature, very similar to a plesiosaur, could not have survived the passage of millenniums in a place visited by thousands of tourists ...
Interspecific Competition Outline Intraspecific competition = density
... The outcome will be competitive exclusion, with one species at zero and the other at K, but the 'winner' depends on initial numbers of each species. (Fig 12.3C Pianka) B. If each species limits its own growth more than it limits the other species' growth, stable coexistence (Kw > αwbKb and Kb > αbwK ...
... The outcome will be competitive exclusion, with one species at zero and the other at K, but the 'winner' depends on initial numbers of each species. (Fig 12.3C Pianka) B. If each species limits its own growth more than it limits the other species' growth, stable coexistence (Kw > αwbKb and Kb > αbwK ...
Potential problems of removing one invasive species at a time
... Interactions between nonnative species can be positive, negative, or neutral (Kuebbing & Nuñez, 2015; Jackson, 2015; Doherty et al., 2015). Most research on invasive species interactions has focused on facilitative interactions (i.e., invasional meltdown hypothesis, Simberloff & Von Holle, 1999; Sim ...
... Interactions between nonnative species can be positive, negative, or neutral (Kuebbing & Nuñez, 2015; Jackson, 2015; Doherty et al., 2015). Most research on invasive species interactions has focused on facilitative interactions (i.e., invasional meltdown hypothesis, Simberloff & Von Holle, 1999; Sim ...
Resource partitioning
... mechanism to exclude potential invaders. With multiple introductions, some individuals with slightly different physiology could survive and reproduce in an environment once thought uninhabitable by their species. ...
... mechanism to exclude potential invaders. With multiple introductions, some individuals with slightly different physiology could survive and reproduce in an environment once thought uninhabitable by their species. ...
Genetic diversity
... As population is reduced in size, some of the genetic diversity is likely to be lost. Certain kinds of species are more likely to go extinct than others: • Species with small, dispersed populations – Successful breeding is difficult. ...
... As population is reduced in size, some of the genetic diversity is likely to be lost. Certain kinds of species are more likely to go extinct than others: • Species with small, dispersed populations – Successful breeding is difficult. ...
Chapter 3 Molecular and morphometric assessment of the taxonomic status of
... clear whether the Prince Edward Island populations alone are sufficient to ensure conservation of the two Ectemnorhinus weevil species, especially if predictions that mice predation is likely to continue escalating (Chown et al. 2002) are realised. If the species occur on both islands and if the pop ...
... clear whether the Prince Edward Island populations alone are sufficient to ensure conservation of the two Ectemnorhinus weevil species, especially if predictions that mice predation is likely to continue escalating (Chown et al. 2002) are realised. If the species occur on both islands and if the pop ...
succession - Cary Institute of Ecosystem Studies
... the same region, disturbance from logging will generate a very different successional plant community than would be found on land retired from row crop agriculture or from grazing. Similarly, the spatial extent of the disturbance will influence the rate of succession; large disturbed areas will rege ...
... the same region, disturbance from logging will generate a very different successional plant community than would be found on land retired from row crop agriculture or from grazing. Similarly, the spatial extent of the disturbance will influence the rate of succession; large disturbed areas will rege ...
MACROALGAL ABUNDANCE IN INTERTIDAL ZONE OF
... aimed to study the macroalgal abundance in Sarangan Beach and influence factors of it. The results is important for local government as a reference to manage and develop the coastal areas of Gunungkidul needed for the ecological assessment of sustainability of these habitats. MATERIALS AND METHODS T ...
... aimed to study the macroalgal abundance in Sarangan Beach and influence factors of it. The results is important for local government as a reference to manage and develop the coastal areas of Gunungkidul needed for the ecological assessment of sustainability of these habitats. MATERIALS AND METHODS T ...
The origin of troglobites
... niches are under siege. They are under tremendous selection pressure to make an adaptive shift into the available (and so far unclaimed) troglobite niches to which part of their populations are preadapted. Their response is to become troglobitic! The model so far proposed has assumed that genetic is ...
... niches are under siege. They are under tremendous selection pressure to make an adaptive shift into the available (and so far unclaimed) troglobite niches to which part of their populations are preadapted. Their response is to become troglobitic! The model so far proposed has assumed that genetic is ...
Uluru - Kata Tjuta National Park - Department of Infrastructure
... Marsupial Mole are known to occur in this Site, but other threatened species, the Black-footed Rock Wallaby and Common Brushtail Possum, are now considered locally extinct. This Site supports a rich reptile fauna and many plant species that have a restricted range within the Northern Territory. Mana ...
... Marsupial Mole are known to occur in this Site, but other threatened species, the Black-footed Rock Wallaby and Common Brushtail Possum, are now considered locally extinct. This Site supports a rich reptile fauna and many plant species that have a restricted range within the Northern Territory. Mana ...
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.