Redacted for privacy - H.J. Andrews Experimental Forest
... the A) dominance preemption model, B) dominance decay model, C) random fraction model and D) random assortment model. Bars represent mean relative species abundance (± 1 standard deviation) of the seven most dominant species (ranked from most to least abundant). Filled circles represent the upper ra ...
... the A) dominance preemption model, B) dominance decay model, C) random fraction model and D) random assortment model. Bars represent mean relative species abundance (± 1 standard deviation) of the seven most dominant species (ranked from most to least abundant). Filled circles represent the upper ra ...
Phytobenthic communities in the Baltic Sea succession
... fragments (e.g. Bergström et al. 2003). In many marine habitats there is also a bank of microscopic forms of seaweeds, as an adaptation for algae to survive through stressful conditions (Santelices 1990). Colonisation of free space in marine rocky habitats includes settlement of sessile biota, which ...
... fragments (e.g. Bergström et al. 2003). In many marine habitats there is also a bank of microscopic forms of seaweeds, as an adaptation for algae to survive through stressful conditions (Santelices 1990). Colonisation of free space in marine rocky habitats includes settlement of sessile biota, which ...
Phylogenetic diversity stabilizes community
... Our experimental microcosms consisted of 250-ml glass bottles each filled with 100 ml aqueous medium, made by dissolving 0.55 g protozoan pellet per liter of water (the same medium used in the stock cultures). This medium was autoclaved and inoculated with bacteria before protists were introduced in ...
... Our experimental microcosms consisted of 250-ml glass bottles each filled with 100 ml aqueous medium, made by dissolving 0.55 g protozoan pellet per liter of water (the same medium used in the stock cultures). This medium was autoclaved and inoculated with bacteria before protists were introduced in ...
population dynamics of two species of kleptoparasitic spiders
... in November, the beginning of the adult period in Okinawa. This means that A. bonadea living in regions without A. flavescens showed host-parasite dynamics similar to A. flavescens. Accordingly, interspecific competition by A. flavescens may have shifted the dynamics of A. bonadea to earlier seasons ...
... in November, the beginning of the adult period in Okinawa. This means that A. bonadea living in regions without A. flavescens showed host-parasite dynamics similar to A. flavescens. Accordingly, interspecific competition by A. flavescens may have shifted the dynamics of A. bonadea to earlier seasons ...
Key Elements of Biodiversity in British Columbia
... require focused management in order to maintain the biodiversity values in British Columbia. This background report was commissioned to explore the concept of biodiversity ‘key elements’ – those elements that are particularly important from a functional perspective. Where possible, the objective was ...
... require focused management in order to maintain the biodiversity values in British Columbia. This background report was commissioned to explore the concept of biodiversity ‘key elements’ – those elements that are particularly important from a functional perspective. Where possible, the objective was ...
References - Trace: Tennessee Research and Creative Exchange
... environmental change. Journal of Animal Ecology 67:600-612. Harley, C. D. G. 2011. Climate change, keystone predation, and biodiversity loss. Nature ...
... environmental change. Journal of Animal Ecology 67:600-612. Harley, C. D. G. 2011. Climate change, keystone predation, and biodiversity loss. Nature ...
Abstracts -- file - Freshwater Mollusk Conservation Society
... The status and conservation needs of freshwater mussels are equally dire (Williams et al. 1993). Of the nearly 300 species in the nation, populations of about 90% of those species reside in the Southeast. Therefore, the plight of southern river systems will determine the plight of this faunal group. ...
... The status and conservation needs of freshwater mussels are equally dire (Williams et al. 1993). Of the nearly 300 species in the nation, populations of about 90% of those species reside in the Southeast. Therefore, the plight of southern river systems will determine the plight of this faunal group. ...
projects for 2012 - The University of Western Australia
... SELECTION OF TOPICS FOR 4TH YEAR, HONOURS, GRADUATE DIPLOMA and MSc STUDENTS Projects suitable for 4th year/honours/postgraduate diploma/ MSc students are given in the following pages, broadly grouped into the School’s three Strategic Research Areas and with the names of academic staff and post-doc ...
... SELECTION OF TOPICS FOR 4TH YEAR, HONOURS, GRADUATE DIPLOMA and MSc STUDENTS Projects suitable for 4th year/honours/postgraduate diploma/ MSc students are given in the following pages, broadly grouped into the School’s three Strategic Research Areas and with the names of academic staff and post-doc ...
A meta-analysis of biotic resistance to exotic plant invasions
... Although our meta-analysis can test the effect of biotic resistance on invader establishment and performance, the available literature prevents us from testing whether exotic species invasions fail because of biotic resistance. This would require experiments where investigators added propagules of i ...
... Although our meta-analysis can test the effect of biotic resistance on invader establishment and performance, the available literature prevents us from testing whether exotic species invasions fail because of biotic resistance. This would require experiments where investigators added propagules of i ...
Functional traits, productivity and effects on nitrogen
... separated into fine roots (<2 mm) and coarse belowground biomass (roots and rhizomes >2 mm, crowns, corms) (124 125). All biomass was dried at 60 °C for a minimum of 96 h, weighed, and ground in a Wiley mill. Roots from the July harvest were composited 0–20, 20–40 and 40–100 cm and then ground. Tiss ...
... separated into fine roots (<2 mm) and coarse belowground biomass (roots and rhizomes >2 mm, crowns, corms) (124 125). All biomass was dried at 60 °C for a minimum of 96 h, weighed, and ground in a Wiley mill. Roots from the July harvest were composited 0–20, 20–40 and 40–100 cm and then ground. Tiss ...
A metaanalysis of biotic resistance to exotic plant invasions
... Although our meta-analysis can test the effect of biotic resistance on invader establishment and performance, the available literature prevents us from testing whether exotic species invasions fail because of biotic resistance. This would require experiments where investigators added propagules of i ...
... Although our meta-analysis can test the effect of biotic resistance on invader establishment and performance, the available literature prevents us from testing whether exotic species invasions fail because of biotic resistance. This would require experiments where investigators added propagules of i ...
integrating the fossil record in the study of insular body
... Owls (Aves, Strigiformes) constitute one of the best samples for studies including both living and fossil insular bird taxa, including recently extinct, focusing on body size and some allometrical characteristics. For the extant record, around 150 endemic insular taxa, distributed on 230 islands or ...
... Owls (Aves, Strigiformes) constitute one of the best samples for studies including both living and fossil insular bird taxa, including recently extinct, focusing on body size and some allometrical characteristics. For the extant record, around 150 endemic insular taxa, distributed on 230 islands or ...
The interplay between habitat structure and chemical
... that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) their reproductive rates, (iv) the trophic interactions occurring in the systems and the (v ...
... that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) their reproductive rates, (iv) the trophic interactions occurring in the systems and the (v ...
Feb cover final.qxd
... habitats, usually aquatic and terrestrial, and feed on different food resources. Unfortunately, we are just beginning to understand the ecological significance of amphibians as their populations shrink and they disappear from many regions of the world. The aquatic larval stages of most amphibians fe ...
... habitats, usually aquatic and terrestrial, and feed on different food resources. Unfortunately, we are just beginning to understand the ecological significance of amphibians as their populations shrink and they disappear from many regions of the world. The aquatic larval stages of most amphibians fe ...
The effects of amphibian population declines on the
... habitats, usually aquatic and terrestrial, and feed on different food resources. Unfortunately, we are just beginning to understand the ecological significance of amphibians as their populations shrink and they disappear from many regions of the world. The aquatic larval stages of most amphibians fe ...
... habitats, usually aquatic and terrestrial, and feed on different food resources. Unfortunately, we are just beginning to understand the ecological significance of amphibians as their populations shrink and they disappear from many regions of the world. The aquatic larval stages of most amphibians fe ...
report - BirdLife International
... In 1968, the International Council of Bird Preservation (the forerunner to BirdLife) purchased Cousin Island in the Seychelles in a last ditch effort to save one of the world’s rarest birds. In 2015, BirdLife officially declared Seychelles Warbler Acrocephalus sechellensis to be no longer threatened ...
... In 1968, the International Council of Bird Preservation (the forerunner to BirdLife) purchased Cousin Island in the Seychelles in a last ditch effort to save one of the world’s rarest birds. In 2015, BirdLife officially declared Seychelles Warbler Acrocephalus sechellensis to be no longer threatened ...
2.6 Recovery plan and management guidelines
... Surveys were carried out on foot, targeting the site of the known record and some adjoining sites with similar habitat. Plant numbers were recorded by counting at the site. Where plants were not evident, anecdotal information was used from other people to estimate numbers. It is thought that populat ...
... Surveys were carried out on foot, targeting the site of the known record and some adjoining sites with similar habitat. Plant numbers were recorded by counting at the site. Where plants were not evident, anecdotal information was used from other people to estimate numbers. It is thought that populat ...
the maintenance of species diversity by disturbance
... defining intensity as size times frequency, we avoid some problems but create others. We are assuming that all disturbances within any particular system under observation, regardless of intensity, cause the same level of damage per unit area per unit time-that is, they are equally severe. Our defini ...
... defining intensity as size times frequency, we avoid some problems but create others. We are assuming that all disturbances within any particular system under observation, regardless of intensity, cause the same level of damage per unit area per unit time-that is, they are equally severe. Our defini ...
Alien predators and amphibian declines: review of two decades of
... when organisms are released into the wild because they are no longer wanted as pets or are no longer needed in captivity. For example, goldfish (Carassius auratus) have become established in some habitats and while generally not thought of as predatory, at least one study has indicated that goldfish ...
... when organisms are released into the wild because they are no longer wanted as pets or are no longer needed in captivity. For example, goldfish (Carassius auratus) have become established in some habitats and while generally not thought of as predatory, at least one study has indicated that goldfish ...
Behavioral responses of American toad and bullfrog - Gt-ibma
... native predators (Marquis et al. 2004; see also Mandrillon and Saglio 2005). The lack of antipredator responses to fish is widespread in species of tadpoles that typically breed in temporary ponds, possibly precluding the coexistence of these species with fish (Kats et al. 1988). Indeed, Gamradt and ...
... native predators (Marquis et al. 2004; see also Mandrillon and Saglio 2005). The lack of antipredator responses to fish is widespread in species of tadpoles that typically breed in temporary ponds, possibly precluding the coexistence of these species with fish (Kats et al. 1988). Indeed, Gamradt and ...
New Zealand`s genetic diversity
... and islets. Its western coast is 1600–2250 kilometres from Australia; it has a land and freshwater area of 268 680 square kilometres (larger than the United Kingdom), and an Exclusive Economic Zone (EEZ) of almost 4.2 million square kilometres that spans 30 degrees of latitude and exceeds 15 times t ...
... and islets. Its western coast is 1600–2250 kilometres from Australia; it has a land and freshwater area of 268 680 square kilometres (larger than the United Kingdom), and an Exclusive Economic Zone (EEZ) of almost 4.2 million square kilometres that spans 30 degrees of latitude and exceeds 15 times t ...
Consumers Control Diversity and Functioning of a Natural Marine
... photosynthesis rates of Ulva relative to other species in the laboratory under saturating flow conditions [33], the lower productivity we observed in Ulva-dominated tide pools is consistent with Ulva’s interactions in the field. Ulva uses bicarbonate as a carbon source, which can elevate tide pool p ...
... photosynthesis rates of Ulva relative to other species in the laboratory under saturating flow conditions [33], the lower productivity we observed in Ulva-dominated tide pools is consistent with Ulva’s interactions in the field. Ulva uses bicarbonate as a carbon source, which can elevate tide pool p ...
The Conservation and Ecology of Carnivorous Plants
... plant species assessed by the International Union for the Conservation of Nature (IUCN) are listed as ‘threatened’, but the threats to carnivorous plants have not previously been quantified. In Chapter 2, I quantified the conservation threats to carnivorous plant taxa worldwide by searching peer-rev ...
... plant species assessed by the International Union for the Conservation of Nature (IUCN) are listed as ‘threatened’, but the threats to carnivorous plants have not previously been quantified. In Chapter 2, I quantified the conservation threats to carnivorous plant taxa worldwide by searching peer-rev ...
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... patterns has only been considered indirectly or non-explicitly, but see [13,27,32]. In the few studies that explicitly address such processes, a clear historical signature of quaternary climate oscillations is revealed by recent methodological advances in the analysis of beta diversity (i.e. partial ...
... patterns has only been considered indirectly or non-explicitly, but see [13,27,32]. In the few studies that explicitly address such processes, a clear historical signature of quaternary climate oscillations is revealed by recent methodological advances in the analysis of beta diversity (i.e. partial ...
Stoichiometry of nutrient recycling by vertebrates in a tropical stream
... excretion ratio was caused largely by variation in body P content rather than by body W content. Variance inflation factors for multiple regressions were relatively low (Table 1), suggesting that analyses were not greatly biased by multicollinearity among variables. The relationship between body P c ...
... excretion ratio was caused largely by variation in body P content rather than by body W content. Variance inflation factors for multiple regressions were relatively low (Table 1), suggesting that analyses were not greatly biased by multicollinearity among variables. The relationship between body P c ...
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.