The views and conclusions contained in this document are those of
... organisms new to waterways that cause problems for native species and significant changes in aquatic habitats, water quality and flow. Eventually the recreational, local community, and industrial users of these aquatic resources are also negatively impacted. Outside of their native habitats, invasiv ...
... organisms new to waterways that cause problems for native species and significant changes in aquatic habitats, water quality and flow. Eventually the recreational, local community, and industrial users of these aquatic resources are also negatively impacted. Outside of their native habitats, invasiv ...
2013 печ. 521М Ecology
... operate at different environmental scales of influence, ranging from molecular to planetary, and these require different sets of scientific explanation. Long-term ecological studies provide important track records to better understand the complexity of ecosystems over longer temporal and broader sp ...
... operate at different environmental scales of influence, ranging from molecular to planetary, and these require different sets of scientific explanation. Long-term ecological studies provide important track records to better understand the complexity of ecosystems over longer temporal and broader sp ...
Population Ecology-Chapter 14 PowerPoint
... – Strongest competition occurs between populations of species that experience niche overlap – Competition declines due to 3 possible outcomes: • Population size of the weaker competitor declines • One species may change its behaviour so that it survives on different resources • Individuals of one po ...
... – Strongest competition occurs between populations of species that experience niche overlap – Competition declines due to 3 possible outcomes: • Population size of the weaker competitor declines • One species may change its behaviour so that it survives on different resources • Individuals of one po ...
File - HAPE @ Phoenix P-12
... purposes has remained relatively intact. Inaccessibility, rugged topography and the hostile climate of the alpine area inhibited large-scale permanent settlement, but the high plateaus have been used regularly as summer pasture for cattle and sheep from the 1850s. Early settlements developed in the ...
... purposes has remained relatively intact. Inaccessibility, rugged topography and the hostile climate of the alpine area inhibited large-scale permanent settlement, but the high plateaus have been used regularly as summer pasture for cattle and sheep from the 1850s. Early settlements developed in the ...
Biodiversity is Autocatalytic
... particular polymer systems; see below), but have more recently been extended to study systems in biology [29] and possibly economics [28]. Here, we show that biodiversity can also be considered a system of autocatalytic sets, and that this view offers a possible answer to the fundamental question of ...
... particular polymer systems; see below), but have more recently been extended to study systems in biology [29] and possibly economics [28]. Here, we show that biodiversity can also be considered a system of autocatalytic sets, and that this view offers a possible answer to the fundamental question of ...
Key Publications - Details and Abstracts PDF, 286.38 KB
... homogeneous entities with single dynamics and growth rates. However, there is increasing evidence that many populations (metapopulations) consist of local subpopulations with largely independent dynamics and different growth rates. In some studies, supposedly homogeneous subpopulations may in fact h ...
... homogeneous entities with single dynamics and growth rates. However, there is increasing evidence that many populations (metapopulations) consist of local subpopulations with largely independent dynamics and different growth rates. In some studies, supposedly homogeneous subpopulations may in fact h ...
the intermediate disturbance hypothesis and its applicability to
... Denman, 1980); the most familiar is associated with Langmuir rotations (3-15 m: Leibovich 1983), which physically segregate organisms according to their buoyant or entrainability properties. At scales of 0.5-5 mm, however, the content of each viscous patch is likely to be only briefly different from ...
... Denman, 1980); the most familiar is associated with Langmuir rotations (3-15 m: Leibovich 1983), which physically segregate organisms according to their buoyant or entrainability properties. At scales of 0.5-5 mm, however, the content of each viscous patch is likely to be only briefly different from ...
Carrying Capacity, Exponential Growth, and Resource Wars
... iological carrying capacity is the number or biomass of organisms that a given habitat can support and involves two levels: (1) maximum or subsistence density – the maximum number of individuals who can eke out an existence in the habitat and (2) optimum or “safe” density – a lower density at which ...
... iological carrying capacity is the number or biomass of organisms that a given habitat can support and involves two levels: (1) maximum or subsistence density – the maximum number of individuals who can eke out an existence in the habitat and (2) optimum or “safe” density – a lower density at which ...
Special issue of Biological Journal of the Linnean Society on
... in IUCN Red List assessments, in understanding biological invasions and in tracking the spread and impacts of diseases in particular. Vascular plants are covered by further papers on hybridisation, phenology and ecological monitoring schemes. Studies of other groups cover the history of the water be ...
... in IUCN Red List assessments, in understanding biological invasions and in tracking the spread and impacts of diseases in particular. Vascular plants are covered by further papers on hybridisation, phenology and ecological monitoring schemes. Studies of other groups cover the history of the water be ...
Is Infectious Disease Just Another Type of Predator
... model? After all, parasites and predators both convert energy and nutrients contained in their resources (hosts or prey, respectively) into new biomass and reproductive work. If these focal consumers perform similar roles, disease ecologists and community ecologists may essentially study the same pr ...
... model? After all, parasites and predators both convert energy and nutrients contained in their resources (hosts or prey, respectively) into new biomass and reproductive work. If these focal consumers perform similar roles, disease ecologists and community ecologists may essentially study the same pr ...
CH - NIMBioS
... terHorst, Miller, and Power model A problem is that the model essentially acts through group selection. It creates variation in resource use among populations, then selections the population that has the highest growth rate. This form of modeling competitors has been shown to be inaccurate. ...
... terHorst, Miller, and Power model A problem is that the model essentially acts through group selection. It creates variation in resource use among populations, then selections the population that has the highest growth rate. This form of modeling competitors has been shown to be inaccurate. ...
University of West
... poplars managed in short-rotation energy plantations may provide a remarkable alternative to timber extracted from natural forests. These systems also play an important environmental role by sequestering large amounts of carbon thus slowing the accumulation of greenhouse gases (Dickmann, 2006).In or ...
... poplars managed in short-rotation energy plantations may provide a remarkable alternative to timber extracted from natural forests. These systems also play an important environmental role by sequestering large amounts of carbon thus slowing the accumulation of greenhouse gases (Dickmann, 2006).In or ...
Invaders - Lesson Corner
... Interactions and Relationships among Organisms. Explain to students that interspecific competition can occur between other species besides animals. Provide students with a Focus FOR MEDIA INTERACTION by asking students to watch the next video sequence for what organisms are competing in a meadow. PL ...
... Interactions and Relationships among Organisms. Explain to students that interspecific competition can occur between other species besides animals. Provide students with a Focus FOR MEDIA INTERACTION by asking students to watch the next video sequence for what organisms are competing in a meadow. PL ...
1998cjb
... have taken the “extended phenotype” view (Dawkins 1982), treating each plant’s ability to exploit different habitats as a complex, polygenic, inherited trait, which is itself the product of numerous other traits including life history, growth rate, seed production, and dispersal. In this view, habit ...
... have taken the “extended phenotype” view (Dawkins 1982), treating each plant’s ability to exploit different habitats as a complex, polygenic, inherited trait, which is itself the product of numerous other traits including life history, growth rate, seed production, and dispersal. In this view, habit ...
Biology 11 Course Outline - Mr. Gandha`s Website!
... Welcome to Biology 11! This is a course that can be fun and interesting, which will expand your mind and heighten your awareness of the world around you. In this course we will be examining various aspects of the living organisms around us – from gymnosperms to streptococci to nematods! Get ready to ...
... Welcome to Biology 11! This is a course that can be fun and interesting, which will expand your mind and heighten your awareness of the world around you. In this course we will be examining various aspects of the living organisms around us – from gymnosperms to streptococci to nematods! Get ready to ...
Grime, JP and Mackey, JML
... a consequence of exposure to particular environmental factors. The potential for change in the expression of the phenotype is also evident in the differences that can be observed between juvenile and mature individuals of identical genotype. In view of this evidence of the profound changes that can a ...
... a consequence of exposure to particular environmental factors. The potential for change in the expression of the phenotype is also evident in the differences that can be observed between juvenile and mature individuals of identical genotype. In view of this evidence of the profound changes that can a ...
- Wiley Online Library
... response to intra- and interspecific competition for 20 days (approximately 100 generations), before traits were measured in two common garden environments. Populations that evolved with interspecific competition had smaller cell sizes, produced fewer cysts and had higher population growth rates rel ...
... response to intra- and interspecific competition for 20 days (approximately 100 generations), before traits were measured in two common garden environments. Populations that evolved with interspecific competition had smaller cell sizes, produced fewer cysts and had higher population growth rates rel ...
Boom and Bust, Predator and Prey, Relationships
... predator. In turn the predator evolves to better capture the prey. ...
... predator. In turn the predator evolves to better capture the prey. ...
Competition among prairie grasshoppers
... zero and the population stabilizes at the carrying capacity of the environment. But species are usually not alone. Consider the diverse herbivores that feed on prairie plants. Plants serve as food for a wide variety of herbivores, from large mammals to tiny insects, each of which reduces the availab ...
... zero and the population stabilizes at the carrying capacity of the environment. But species are usually not alone. Consider the diverse herbivores that feed on prairie plants. Plants serve as food for a wide variety of herbivores, from large mammals to tiny insects, each of which reduces the availab ...
AP/IB Environmental Science
... 3. Define environmental science. 4. What is environmental sustainability, and why is it important? 5. What are endocrine disrupters? List three examples of chemicals that fall into this group. 6. Compare and contrast synergism and antagonism. 7. Explain the term commercial extinction. 8. Briefly, in ...
... 3. Define environmental science. 4. What is environmental sustainability, and why is it important? 5. What are endocrine disrupters? List three examples of chemicals that fall into this group. 6. Compare and contrast synergism and antagonism. 7. Explain the term commercial extinction. 8. Briefly, in ...
The Smart Organism: Reinforcing NC Biology Curriculum for Ecology and Human Impacts
... A niche consists of all the physical and biological conditions in which a species lives and the way the species obtains what it needs to survive and reproduce. An organism’s niche is the role it plays in the environment, and it includes any relationships it may have with others within its species or ...
... A niche consists of all the physical and biological conditions in which a species lives and the way the species obtains what it needs to survive and reproduce. An organism’s niche is the role it plays in the environment, and it includes any relationships it may have with others within its species or ...
... fungi). While each of the individual physical and biological processes plays a role, ultimately it is the integrated sum of the processes, the environment’s invasibility, that is the local driver of diversity. The primary effect of an environment’s invasibility on local diversity is as a filter of ...
9 tcp/rer/3402/ra/arthu - Assistance to Western Balkan Countries for
... outlined in the OIE’s Aquatic Animal Health Code, such measures must be justified by a risk analysis. ...
... outlined in the OIE’s Aquatic Animal Health Code, such measures must be justified by a risk analysis. ...
Novel weapons: invasive success and the evolution of increased
... native and introduced ranges, (Beckstead and Parker some exotics transform from native weaklings to invasive 2003; Maron and Vilá 2001; Reinhart and Callaway in bullies by exuding biochemicals that are highly inhibitory press), and in some habitats natives and exotics appear (allelopathic) to plants ...
... native and introduced ranges, (Beckstead and Parker some exotics transform from native weaklings to invasive 2003; Maron and Vilá 2001; Reinhart and Callaway in bullies by exuding biochemicals that are highly inhibitory press), and in some habitats natives and exotics appear (allelopathic) to plants ...
Ecological fitting
Ecological fitting is ""the process whereby organisms colonize and persist in novel environments, use novel resources or form novel associations with other species as a result of the suites of traits that they carry at the time they encounter the novel condition.” It can be understood as a situation in which a species' interactions with its biotic and abiotic environment seem to indicate a history of coevolution, when in actuality the relevant traits evolved in response to a different set of biotic and abiotic conditions. The simplest form of ecological fitting is resource tracking, in which an organism continues to exploit the same resources, but in a new host or environment. In this framework, the organism occupies a multidimensional operative environment defined by the conditions in which it can persist, similar to the idea of the Hutchinsonian niche. In this case, a species can colonize new environments (e.g. an area with the same temperature and water regime) and/or form new species interactions (e.g. a parasite infecting a new host) which can lead to the misinterpretation of the relationship as coevolution, although the organism has not evolved and is continuing to exploit the same resources it always has. The more strict definition of ecological fitting requires that a species encounter an environment or host outside of its original operative environment and obtain realized fitness based on traits developed in previous environments that are now co-opted for a new purpose. This strict form of ecological fitting can also be expressed either as colonization of new habitat or the formation of new species interactions.