Moving beyond static species distribution models in support of
... migration explicitly account for species dispersal and establishment in some way, but may not account for interactions with other species or for demographic processes of birth and death. Models of community dynamics can address both spatially explicit dispersal and competition among species. Models ...
... migration explicitly account for species dispersal and establishment in some way, but may not account for interactions with other species or for demographic processes of birth and death. Models of community dynamics can address both spatially explicit dispersal and competition among species. Models ...
La région de Smir comprenant la lagune, les marais et la plage
... Eteone longa. These species show a distinct zonation pattern on the beach, every species is occurring in its own specific zone. As information on the trophic position of these species is known, it was hypothesized that biotic interactions as competition and predation could play an important role in ...
... Eteone longa. These species show a distinct zonation pattern on the beach, every species is occurring in its own specific zone. As information on the trophic position of these species is known, it was hypothesized that biotic interactions as competition and predation could play an important role in ...
Pacific Tailed Frog
... then north along the Central and North Coast to Port Canal. While generally restricted to the mainland, small populations have been found on coastal islands of the Central Coast. The habitat conditions required by this species (fast flowing systems with cool water temperatures throughout the year an ...
... then north along the Central and North Coast to Port Canal. While generally restricted to the mainland, small populations have been found on coastal islands of the Central Coast. The habitat conditions required by this species (fast flowing systems with cool water temperatures throughout the year an ...
Planted Forests and Biodiversity
... In addition, the impact of plantations on genetic diversity depends on the level of genetic variability of the FRM itself, as well as on the possibility of gene exchanges between the planted FRM and surrounding forest tree gene pools. At the regional forest tree diversity level, the final impact of ...
... In addition, the impact of plantations on genetic diversity depends on the level of genetic variability of the FRM itself, as well as on the possibility of gene exchanges between the planted FRM and surrounding forest tree gene pools. At the regional forest tree diversity level, the final impact of ...
Dynamics of transposable elements: towards a community ecology
... or potential fecundity). Conflicting predictions can be expected with regard to the ecological niches depending on the putative mechanisms underlying the community structure [37]. Several theories on species diversity have been developed around the notion of interspecific competition. All species ar ...
... or potential fecundity). Conflicting predictions can be expected with regard to the ecological niches depending on the putative mechanisms underlying the community structure [37]. Several theories on species diversity have been developed around the notion of interspecific competition. All species ar ...
Inclusion of facilitation into ecological theory
... Species interactions can also reduce or eliminate the effects of niche-shrinking factors, thereby increasing the proportion of the fundamental niche that is ultimately occupied. For example, plant densities and distributions can be increased by both plant and animal facilitators that reduce herbivor ...
... Species interactions can also reduce or eliminate the effects of niche-shrinking factors, thereby increasing the proportion of the fundamental niche that is ultimately occupied. For example, plant densities and distributions can be increased by both plant and animal facilitators that reduce herbivor ...
Urbanization, Biodiversity, and Conservation
... Blair 2001) is the intermediate disturbance hypothesis. The initial human impacts of suburban sprawl are sometimes relatively mild, with only a few housing subdivisions in a matrix of largely natural or agricultural habitat. This promotes environmental heterogeneity, because different habitats occur ...
... Blair 2001) is the intermediate disturbance hypothesis. The initial human impacts of suburban sprawl are sometimes relatively mild, with only a few housing subdivisions in a matrix of largely natural or agricultural habitat. This promotes environmental heterogeneity, because different habitats occur ...
Armit Meadows Ecological Reserve
... thus comprise a visually and ecologically spectacular site, making Armit Meadows Ecological Reserve an esteemed addition to Manitoba’s network of protected areas. As an ecological reserve, the Armit Meadows site will be maintained for the preservation and protection of pristine riparian habitat and ...
... thus comprise a visually and ecologically spectacular site, making Armit Meadows Ecological Reserve an esteemed addition to Manitoba’s network of protected areas. As an ecological reserve, the Armit Meadows site will be maintained for the preservation and protection of pristine riparian habitat and ...
Chapter 6 - eLearning
... combination of both • Agriculture can be thought of as partial management of certain kinds of ecosystems • Wildlife Preserves are examples of partially managed ecosystems Botkin and Keller Environmental Science 5e ...
... combination of both • Agriculture can be thought of as partial management of certain kinds of ecosystems • Wildlife Preserves are examples of partially managed ecosystems Botkin and Keller Environmental Science 5e ...
Prey is a term used to describe animals that are hunted and killed by
... Competition may make things difficult for organisms, but it is also a major driving force in evolution. Many organisms get better at what they do because other species forced them to. For example, a gazelle evolved its speed and maneuverability not because it has to chase down plants, but because it ...
... Competition may make things difficult for organisms, but it is also a major driving force in evolution. Many organisms get better at what they do because other species forced them to. For example, a gazelle evolved its speed and maneuverability not because it has to chase down plants, but because it ...
Hybrid
... • Evolutionary theory must explain how new species originate and how populations evolve • Microevolution consists of changes in allele frequency in a population over time • Macroevolution refers to broad patterns of evolutionary change above the species level ...
... • Evolutionary theory must explain how new species originate and how populations evolve • Microevolution consists of changes in allele frequency in a population over time • Macroevolution refers to broad patterns of evolutionary change above the species level ...
the Instructor`s Manual (PDF file format)
... relationships of these trophic levels are diagrammatically represented by biomass and energy pyramids. Occasionally a biomass pyramid may be inverted, but the energy pyramid cannot be inverted. Trophic levels dramatically affect each other through a phenomenon called a trophic cascade. Lower trophic ...
... relationships of these trophic levels are diagrammatically represented by biomass and energy pyramids. Occasionally a biomass pyramid may be inverted, but the energy pyramid cannot be inverted. Trophic levels dramatically affect each other through a phenomenon called a trophic cascade. Lower trophic ...
The Ecological Significance of Mycorrhizae
... protect plant roots from pathogens. One study showed that fecundity reduction from such pathogens may be reduced up to 50% when mycorrhizae are present (Newsham et al. ...
... protect plant roots from pathogens. One study showed that fecundity reduction from such pathogens may be reduced up to 50% when mycorrhizae are present (Newsham et al. ...
Local diversity reduces infection risk across multiple
... a replicated test of the hypothesis that local biodiversity affects infection risk in aquatic systems. Our analysis focuses exclusively on the cercarial transmission step of several trematode species. We use two individual-level measures of infection risk in target second intermediate hosts, prevale ...
... a replicated test of the hypothesis that local biodiversity affects infection risk in aquatic systems. Our analysis focuses exclusively on the cercarial transmission step of several trematode species. We use two individual-level measures of infection risk in target second intermediate hosts, prevale ...
Group A: Impacts of IS on organisms, communities, and landscapes
... o Many studies that are done are small scale and difficult to figure out what emergent effects are if invasion occurs across the landscape o Temporal scaling: How well do we understand whether we need to act right now to deal with an invasion or will the invasion play out and resolve itself? Ex: Z ...
... o Many studies that are done are small scale and difficult to figure out what emergent effects are if invasion occurs across the landscape o Temporal scaling: How well do we understand whether we need to act right now to deal with an invasion or will the invasion play out and resolve itself? Ex: Z ...
Inclusion of facilitation into ecological theory
... Species interactions can also reduce or eliminate the effects of niche-shrinking factors, thereby increasing the proportion of the fundamental niche that is ultimately occupied. For example, plant densities and distributions can be increased by both plant and animal facilitators that reduce herbivor ...
... Species interactions can also reduce or eliminate the effects of niche-shrinking factors, thereby increasing the proportion of the fundamental niche that is ultimately occupied. For example, plant densities and distributions can be increased by both plant and animal facilitators that reduce herbivor ...
Ecological consequences of human niche
... that shaped crop dispersal (e.g., ref. 59) whereas plant microfossil and genetic studies are beginning to clarify the spread of tropical species (e.g., refs. 60 and 61). The geographic expansion of agricultural crops was a complex process that carried along other species and transformed local eco ...
... that shaped crop dispersal (e.g., ref. 59) whereas plant microfossil and genetic studies are beginning to clarify the spread of tropical species (e.g., refs. 60 and 61). The geographic expansion of agricultural crops was a complex process that carried along other species and transformed local eco ...
The Ecological Basis of Conservation Heterogeneity, Ecosystems
... interactions (Power, 1992); and patterns of nutrient upwelling from the sediments alter the distribution and abundance of algae (Pringle et al., 1988). Without the understanding gained from analysis of the physical and chemical setting as well as the biological and societal context, conservation eff ...
... interactions (Power, 1992); and patterns of nutrient upwelling from the sediments alter the distribution and abundance of algae (Pringle et al., 1988). Without the understanding gained from analysis of the physical and chemical setting as well as the biological and societal context, conservation eff ...
11:45 Heupel M
... loss of a single mesopredator species may be of little effect because predation will still occur through persistence of additional mesopredators in the system •Loss of an apex predator species may have broader effects due to loss of acute predation, loss of dominance effects and lack of a conspecifi ...
... loss of a single mesopredator species may be of little effect because predation will still occur through persistence of additional mesopredators in the system •Loss of an apex predator species may have broader effects due to loss of acute predation, loss of dominance effects and lack of a conspecifi ...
Hybridization and Conservation
... The New Zealand black stilt - formerly bred throughout New Zealand - now occurs in only one river basin due to predation and loss of breeding habitat. The pied stilt - self-introduced from Australia to the South Island in the early 1800s - spread to the North Island in the 1900s Hybrids - were first ...
... The New Zealand black stilt - formerly bred throughout New Zealand - now occurs in only one river basin due to predation and loss of breeding habitat. The pied stilt - self-introduced from Australia to the South Island in the early 1800s - spread to the North Island in the 1900s Hybrids - were first ...
Balanced Harvesting in the Barents Sea?
... Most of the modelling studies do not include this, but set a fixed F based on mean productivity -For example: For capelin - fixed F (from fixed productivity) results in overfishing at critically low abundances loss of catches when abundances are high Lower yield for cod and herring in Gadget mo ...
... Most of the modelling studies do not include this, but set a fixed F based on mean productivity -For example: For capelin - fixed F (from fixed productivity) results in overfishing at critically low abundances loss of catches when abundances are high Lower yield for cod and herring in Gadget mo ...
Ecosystem-based Management
... management is a form of adaptive management; a method of learning how to better manage aspects of the ecosystem through an interactive process of experimentation. Worthy of mention is continuous hypothesis testing and trialand-error approach to generating knowledge. In order for resources to be bett ...
... management is a form of adaptive management; a method of learning how to better manage aspects of the ecosystem through an interactive process of experimentation. Worthy of mention is continuous hypothesis testing and trialand-error approach to generating knowledge. In order for resources to be bett ...
CHAPTER 20 Principles of Biogeography
... all individual species in the ecosystems having a range of tolerance of each environmental factor. The niche of each species is defined by this range, and also by the function of each species in the ecosystem. Climate controls the distribution of the major vegetation regions of the Earth, and there ...
... all individual species in the ecosystems having a range of tolerance of each environmental factor. The niche of each species is defined by this range, and also by the function of each species in the ecosystem. Climate controls the distribution of the major vegetation regions of the Earth, and there ...
Fifth National Report to the Convention on Biological Diversity Sweden
... Red listing in Sweden has been carried out since 1996, with the most recent assessment made in 2010. As far as possible the red list is an objective analysis of the status of flora and fauna in Sweden, evaluating the species’ risk of extinction. The analyses follow the International Union for Conser ...
... Red listing in Sweden has been carried out since 1996, with the most recent assessment made in 2010. As far as possible the red list is an objective analysis of the status of flora and fauna in Sweden, evaluating the species’ risk of extinction. The analyses follow the International Union for Conser ...
daily
... serenity). Moreover, ecosystems have value in terms of the conservation of options (such as genetic diversity for future use) (1). Unfortunately, relative to other forms of capital, ecosystems are poorly understood, scarcely monitored, and (in many cases) undergoing rapid degradation and depletion. ...
... serenity). Moreover, ecosystems have value in terms of the conservation of options (such as genetic diversity for future use) (1). Unfortunately, relative to other forms of capital, ecosystems are poorly understood, scarcely monitored, and (in many cases) undergoing rapid degradation and depletion. ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.