Modelling coevolution in multispecies communities
... speciation and extinction built into it. We will analyse the properties of the food webs which arise in the model and compare these with ecological data. The variation in the diversity of species seen in the fossil record is well documented (Sepkoski, 1993). Attention has focused on the large-scale ...
... speciation and extinction built into it. We will analyse the properties of the food webs which arise in the model and compare these with ecological data. The variation in the diversity of species seen in the fossil record is well documented (Sepkoski, 1993). Attention has focused on the large-scale ...
Gillman and Wright 2006 - Reed F. Noss Lab at the University of
... richness data will therefore violate the assumption of Poisson errors more often than the assumption of normality and symmetry of errors (B. McArdle, personal communication). In addition, Mittelbach et al. (2001) chose a significance level of 10%. Whittaker and Heegaard (2003) demonstrated how these ...
... richness data will therefore violate the assumption of Poisson errors more often than the assumption of normality and symmetry of errors (B. McArdle, personal communication). In addition, Mittelbach et al. (2001) chose a significance level of 10%. Whittaker and Heegaard (2003) demonstrated how these ...
2.1.1 Distribution and Abundance
... record environmental changes in plant and animal populations over time, population ecologists must collect information on the distribution and abundance of organisms in each ecosystem. ...
... record environmental changes in plant and animal populations over time, population ecologists must collect information on the distribution and abundance of organisms in each ecosystem. ...
Porifera_1-18
... (predation and competition) are important : •Competition plays a more important role in determining sponge diversity in mangrove habitats. •Predation plays a more important role in determining sponge diversity in coral reef habitats. ...
... (predation and competition) are important : •Competition plays a more important role in determining sponge diversity in mangrove habitats. •Predation plays a more important role in determining sponge diversity in coral reef habitats. ...
Progress
... commissioned during the year. Several of these projects involve long-term experimental work. The inclusion of such projects is a valuable step forward as, by nature, many changes in biodiversity are slow to manifest themselves. In particular, attempts to enhance biodiversity value often gain momentu ...
... commissioned during the year. Several of these projects involve long-term experimental work. The inclusion of such projects is a valuable step forward as, by nature, many changes in biodiversity are slow to manifest themselves. In particular, attempts to enhance biodiversity value often gain momentu ...
The three grades of metazoan animals
... • most sponges are marine (~5000 species) but there are ~150 freshwater sponge species • Sponges are found at all depths but certain species are restricted to particular depths due to how their spicules are formed • There are few sponge predators because they usually contain distasteful toxins • Som ...
... • most sponges are marine (~5000 species) but there are ~150 freshwater sponge species • Sponges are found at all depths but certain species are restricted to particular depths due to how their spicules are formed • There are few sponge predators because they usually contain distasteful toxins • Som ...
Drainage Services Department Practice Note No. 1/2015 Guidelines
... surface runoff and attenuating peak flow, thereby preventing the downstream existing drainage infrastructure from being overloaded, and thus enhancing the drainage system’s capability to handle unexpected extreme events. Its application also provides wider environmental benefits to the community, wh ...
... surface runoff and attenuating peak flow, thereby preventing the downstream existing drainage infrastructure from being overloaded, and thus enhancing the drainage system’s capability to handle unexpected extreme events. Its application also provides wider environmental benefits to the community, wh ...
Trophic Organization of Fishes in a Coastal
... increased reliance on plant matter in various forms. T h e fish also take bivalve mollusks a n d other benthic invertebrates such as shrimp and harpacticoid copepods. Pinfish that exceed 120 mm SL are largely herbivorous, feeding mainly on seagrass such as Syringodiurn filiforme a n d Thalassia test ...
... increased reliance on plant matter in various forms. T h e fish also take bivalve mollusks a n d other benthic invertebrates such as shrimp and harpacticoid copepods. Pinfish that exceed 120 mm SL are largely herbivorous, feeding mainly on seagrass such as Syringodiurn filiforme a n d Thalassia test ...
Soil phosphorus heterogeneity promotes tree species diversity and
... study sought to investigate the effects of soil nutrient (nitrogen and phosphorus) heterogeneity on tree species diversity in the Xishuangbanna tropical seasonal rainforest in southwestern China. Thirty-nine plots of 400 m2 (20 × 20 m) were randomly located in the Xishuangbanna tropical seasonal ra ...
... study sought to investigate the effects of soil nutrient (nitrogen and phosphorus) heterogeneity on tree species diversity in the Xishuangbanna tropical seasonal rainforest in southwestern China. Thirty-nine plots of 400 m2 (20 × 20 m) were randomly located in the Xishuangbanna tropical seasonal ra ...
Characterization of Biodiversity
... forward both ecological adaptation and microevolution: to limit or reduce the genetic diversity within a species is to limit or reduce its potential or actual role in the ecological and evolutionary development of the biosphere. • The food plants, animals, fungi and other microorganisms on which all ...
... forward both ecological adaptation and microevolution: to limit or reduce the genetic diversity within a species is to limit or reduce its potential or actual role in the ecological and evolutionary development of the biosphere. • The food plants, animals, fungi and other microorganisms on which all ...
Behavioral Interactions Among Four Species of the Salamander
... has advanced the view that competition alone is not sufficient to explain the structure of Desmognathus communities. This view is based on the fact that the relatively smaller size of those species found in more terrestrial habitats is inconsistent with the concept of competitive efficiency, as smal ...
... has advanced the view that competition alone is not sufficient to explain the structure of Desmognathus communities. This view is based on the fact that the relatively smaller size of those species found in more terrestrial habitats is inconsistent with the concept of competitive efficiency, as smal ...
significant natural areas timaru district
... the protection of areas of significant indigenous vegetation and significant habitats of indigenous fauna” as a matter of national importance. A range of approaches have been used by Councils throughout New Zealand to meet this obligation. Timaru District Council identified SNAs during preparation o ...
... the protection of areas of significant indigenous vegetation and significant habitats of indigenous fauna” as a matter of national importance. A range of approaches have been used by Councils throughout New Zealand to meet this obligation. Timaru District Council identified SNAs during preparation o ...
south san francisco bay invertebrate guide
... FOOD: Plankton. Food is captured on the surface of the bell by mucus and then transported by cilia (tiny hairs) to the tentacles where it is passed to the mouth. PREDATORS: Ocean sunfish (Mola mola) and sea turtles feed on Aurelia aurita (though neither of these are found in S.F. Bay). ORIGIN/ RANGE ...
... FOOD: Plankton. Food is captured on the surface of the bell by mucus and then transported by cilia (tiny hairs) to the tentacles where it is passed to the mouth. PREDATORS: Ocean sunfish (Mola mola) and sea turtles feed on Aurelia aurita (though neither of these are found in S.F. Bay). ORIGIN/ RANGE ...
Phenotypic Plasticity
... cues with particular hosts, influence the potential to use new hosts and potentially the ability for a race of parasitoids to specialize on that new host? Such questions about the ecological and evolutionary consequences of plasticity have been raised in the past, as far back as Baldwin in 1896 (1, ...
... cues with particular hosts, influence the potential to use new hosts and potentially the ability for a race of parasitoids to specialize on that new host? Such questions about the ecological and evolutionary consequences of plasticity have been raised in the past, as far back as Baldwin in 1896 (1, ...
Nature Conservation Service: Biodiversity Conservation Appraisal
... The challenge of demonstrating achievements is made more complex by insufficient knowledge of ecosystems, taxa and related processes, and how systems respond to disturbances. In conventional conservation and land management practices, and in the absence of appropriate knowledge and management tools, ...
... The challenge of demonstrating achievements is made more complex by insufficient knowledge of ecosystems, taxa and related processes, and how systems respond to disturbances. In conventional conservation and land management practices, and in the absence of appropriate knowledge and management tools, ...
IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT)
... of ripe and unripe fruits of Jasmine and Carissa. Open ripe fruits of Carissa were more inviting to the ants, cicadas and damsel bugs with movement limited to such fruits and these insects were observed constantly licking up the juice from the fruits. The foraging behaviour of the dipterans involves ...
... of ripe and unripe fruits of Jasmine and Carissa. Open ripe fruits of Carissa were more inviting to the ants, cicadas and damsel bugs with movement limited to such fruits and these insects were observed constantly licking up the juice from the fruits. The foraging behaviour of the dipterans involves ...
2001japplecol
... banks are one of the most important factors limiting efforts to biologically control exotic weeds (Holloway 1964; Dahlsten 1986). Crawley, Harvey & Purvis (1996) found that British aliens were more likely than natives to have long-term seed banks, although this may not apply equally to all groups (H ...
... banks are one of the most important factors limiting efforts to biologically control exotic weeds (Holloway 1964; Dahlsten 1986). Crawley, Harvey & Purvis (1996) found that British aliens were more likely than natives to have long-term seed banks, although this may not apply equally to all groups (H ...
Phenotypic Plasticity in the Interactions and Evolution of Species
... cues with particular hosts, influence the potential to use new hosts and potentially the ability for a race of parasitoids to specialize on that new host? Such questions about the ecological and evolutionary consequences of plasticity have been raised in the past, as far back as Baldwin in 1896 (1, ...
... cues with particular hosts, influence the potential to use new hosts and potentially the ability for a race of parasitoids to specialize on that new host? Such questions about the ecological and evolutionary consequences of plasticity have been raised in the past, as far back as Baldwin in 1896 (1, ...
Food Webs, Models and Species Extinctions in a
... offentligen försvaras i Blå Hallen, Ekologihuset, Sölvegatan 37, Lund, fredagen den 16:e februari 2007 kl 13:15 ...
... offentligen försvaras i Blå Hallen, Ekologihuset, Sölvegatan 37, Lund, fredagen den 16:e februari 2007 kl 13:15 ...
Management of Early- Successional Communities in Central
... process that results in increased habitat discontinuity by breaking up blocks of habitat. It ranges from the creation of small disturbance patches within a large block of habitat to widespread habitat loss resulting in small, isolated patches of habitat. Habitat fragmentation can have positive or ne ...
... process that results in increased habitat discontinuity by breaking up blocks of habitat. It ranges from the creation of small disturbance patches within a large block of habitat to widespread habitat loss resulting in small, isolated patches of habitat. Habitat fragmentation can have positive or ne ...
Bio-Diversity, Extinction, and Incentives to Save/Exterminate Species
... Describe how successful solutions for maintaining the integrity of natural systems must also address the needs of local people and should include those local communities in the planning and implementation. Describe examples of the different viewpoints local people may have about land use issues. Str ...
... Describe how successful solutions for maintaining the integrity of natural systems must also address the needs of local people and should include those local communities in the planning and implementation. Describe examples of the different viewpoints local people may have about land use issues. Str ...
Nonrandom extinction patterns can modulate pest control service
... loss of their competitors, causing steeper declines in pest control provision with predator species loss. These results highlight diet breadth in particular as a key predictor of service provision, as it affects both the way species respond to and alter their environments. More generally, our model ...
... loss of their competitors, causing steeper declines in pest control provision with predator species loss. These results highlight diet breadth in particular as a key predictor of service provision, as it affects both the way species respond to and alter their environments. More generally, our model ...
Ocular morphology in antarctic notothenioid fishes
... notothenioids. The choroid body was absent in phyletically derived groups. The choroid body was especially large in Dissostichus mawsoni, the only species with a rod dominated retina. Retinae were 154-279 pm thick with layering and sublayering typical for teleosts. Although all species had both rods ...
... notothenioids. The choroid body was absent in phyletically derived groups. The choroid body was especially large in Dissostichus mawsoni, the only species with a rod dominated retina. Retinae were 154-279 pm thick with layering and sublayering typical for teleosts. Although all species had both rods ...
Mass Extinctions Increase Evenness of Genus Diversity Across
... probability that two genera randomly selected at a point in time belong to different modes. While it follows the same trend as the Shannon index, the peaks and valleys in evenness are more pronounced. During mass extinctions, there is a spike in evenness, with the most genera being lost from modes w ...
... probability that two genera randomly selected at a point in time belong to different modes. While it follows the same trend as the Shannon index, the peaks and valleys in evenness are more pronounced. During mass extinctions, there is a spike in evenness, with the most genera being lost from modes w ...
Succession Student PPT
... are often the first to begin secondary succession. As they grow they create shade. Shade-loving plants, such as mountain laurel, grow and create even more shade. The increased shade creates a lack of sunlight for the sun-loving plants. Because of the shade, the sunloving plants fail to reproduce and ...
... are often the first to begin secondary succession. As they grow they create shade. Shade-loving plants, such as mountain laurel, grow and create even more shade. The increased shade creates a lack of sunlight for the sun-loving plants. Because of the shade, the sunloving plants fail to reproduce and ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.