"Balance of Nature" metaphor in population ecology
... of some predator and prey species in the arctic, had inspired many ecologists to look for similar oscillations in other species (see issues of Journal of Animal Ecology 1930-1940). Simple continuous time models of the sort used by Lotka and Volterra do not have as much interesting dynamic behaviour ...
... of some predator and prey species in the arctic, had inspired many ecologists to look for similar oscillations in other species (see issues of Journal of Animal Ecology 1930-1940). Simple continuous time models of the sort used by Lotka and Volterra do not have as much interesting dynamic behaviour ...
Ecological communities in variable environments : dynamics
... help us better understand climate driven changes in ecosystems (Tylianakis et al. 2008). This thesis aims at developing theoretical understanding of how ecological communities respond to changes in the regime of environmental fluctuations. ...
... help us better understand climate driven changes in ecosystems (Tylianakis et al. 2008). This thesis aims at developing theoretical understanding of how ecological communities respond to changes in the regime of environmental fluctuations. ...
ppt檔案
... At high elevation sites, neither factor alone had any affect. But together, the two factors reduced tadpole survival. At low elevation sites, this effect was not seen. ...
... At high elevation sites, neither factor alone had any affect. But together, the two factors reduced tadpole survival. At low elevation sites, this effect was not seen. ...
Natural Selection in the Microbial World
... organized by your Society a few years ago. Suffice it to say that two fundamentally different processes have been found to occur, in protozoa, algae, fungi, yeasts and bacteria, resulting in the appearance of variants. They are: (1) adaptations, in the sense of changes of properties in response to e ...
... organized by your Society a few years ago. Suffice it to say that two fundamentally different processes have been found to occur, in protozoa, algae, fungi, yeasts and bacteria, resulting in the appearance of variants. They are: (1) adaptations, in the sense of changes of properties in response to e ...
Competition and Facilitation: a Synthetic Approach to Interactions in
... isolation from each other in nature, and by co-occurring within the same community, and even between the same individuals, they may produce complex and variable effects. Complex combinations of negative and positive interactions operating between plant species appear to be widespread in nature, and ...
... isolation from each other in nature, and by co-occurring within the same community, and even between the same individuals, they may produce complex and variable effects. Complex combinations of negative and positive interactions operating between plant species appear to be widespread in nature, and ...
A Review of the Effects of Seismic Surveys on Marine Mammals
... psychometric parameters. In this case, measurements of auditory sensitivity, auditory function, and the effects of noise exposure are extremely relevant. There are significant shortcomings, however. Only a limited range of species is routinely kept in captivity, and it is unlikely that some groups, ...
... psychometric parameters. In this case, measurements of auditory sensitivity, auditory function, and the effects of noise exposure are extremely relevant. There are significant shortcomings, however. Only a limited range of species is routinely kept in captivity, and it is unlikely that some groups, ...
BIOSPHERE Chapter 3 - phsdanielewiczscience
... Images from: Pearson Education Inc; Publishing as Pearson Prentice Hall ...
... Images from: Pearson Education Inc; Publishing as Pearson Prentice Hall ...
Chapter 2 Noise-induced Hearing Loss
... severe blast or explosion can also affect the middle ear when the impact of the energy from the blast damages the eardrum. These symptoms are therefore not strictly NIHL but can be related to the conditions in an occupational environment such as in deep-level mining found in the South African mining ...
... severe blast or explosion can also affect the middle ear when the impact of the energy from the blast damages the eardrum. These symptoms are therefore not strictly NIHL but can be related to the conditions in an occupational environment such as in deep-level mining found in the South African mining ...
High Order Statistics of Natural and Manmade Sounds
... and intensity statistics play in discrimination phenomena. Prior studies demonstrate that central auditory neurons can respond selectively to high-order sound statistics including the sound contrast and statistics related to variations in the sound pressure level ...
... and intensity statistics play in discrimination phenomena. Prior studies demonstrate that central auditory neurons can respond selectively to high-order sound statistics including the sound contrast and statistics related to variations in the sound pressure level ...
The Ear Tone Toolbox for Auditory Distortion Product
... for the hardware OWL synthesizer. The toolbox consists of six instruments that allow the user to input various combinations of evoked distortion products and acoustic primary tones. The examples discussed in this paper are in the format of Max external objects. The parameters of each object are sent ...
... for the hardware OWL synthesizer. The toolbox consists of six instruments that allow the user to input various combinations of evoked distortion products and acoustic primary tones. The examples discussed in this paper are in the format of Max external objects. The parameters of each object are sent ...
EssentialBiology05_Ecology_Evolution_Conservation
... 30. Outline one method for estimating the biomass of different trophic levels of an ecosystem. How do researchers ensure both minimal impact and maximal reliability of results? ...
... 30. Outline one method for estimating the biomass of different trophic levels of an ecosystem. How do researchers ensure both minimal impact and maximal reliability of results? ...
Response from the exposed intracranial human auditory nerve to
... fibers, the responses from fibers with CF below twice the frequency of the stimulus tones are probably unlikely to contribute significantly to the gross response, which therefore can be assumed to be a result of the phase-locked activity in fibers with CF above twice the frequency of the tone. Only ...
... fibers, the responses from fibers with CF below twice the frequency of the stimulus tones are probably unlikely to contribute significantly to the gross response, which therefore can be assumed to be a result of the phase-locked activity in fibers with CF above twice the frequency of the tone. Only ...
Trophic polymorphism in a terrestrial salamander John C. Maerz,
... between efficient use of different resources (Bolnick et al., 2003). Trade-offs in resource use efficiency create multiple potential trophic niches. When competition for resources is high, negative density dependence creates frequency-dependent selection to specialize on those resource niches, resul ...
... between efficient use of different resources (Bolnick et al., 2003). Trade-offs in resource use efficiency create multiple potential trophic niches. When competition for resources is high, negative density dependence creates frequency-dependent selection to specialize on those resource niches, resul ...
Aquatic biomes
... Interactions between organisms and the environment limit the distribution of species •Ecologists have long recognized global and regional patterns of distribution of organisms within the biosphere •Many naturalists began to identify broad patterns of distribution by naming ...
... Interactions between organisms and the environment limit the distribution of species •Ecologists have long recognized global and regional patterns of distribution of organisms within the biosphere •Many naturalists began to identify broad patterns of distribution by naming ...
3-1 What Is Ecology? - Blue Valley Schools
... A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. Populations are groups of individuals that belong to the same species and live in the same area. Communities are assemblages of different populations that live together in a defined area. ...
... A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. Populations are groups of individuals that belong to the same species and live in the same area. Communities are assemblages of different populations that live together in a defined area. ...
44KB - NZQA
... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
Feeding Habits of the Long-Eared Desert Bat, Otonycteris hemprichi
... study sites are the same, these differences probably reflect seasonal variations in the diet. Horacek (1991) found many Solifugae in the environment and was surprised when neither the stomachs nor the feces contained them. Solifugae were the most important prey in our samples. Contrary to Norberg an ...
... study sites are the same, these differences probably reflect seasonal variations in the diet. Horacek (1991) found many Solifugae in the environment and was surprised when neither the stomachs nor the feces contained them. Solifugae were the most important prey in our samples. Contrary to Norberg an ...
Describe the principles of aquatic ecology and relate to aquaculture
... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
Current Normative Concepts in Conservation
... humanity–nature relationship and evolutionary ecology is tenuous and contingent, not logically necessary. On evolutionarily significant scales of time, Homo sapiens is a latecomer, a new species in comparison with any other of comparable size. The rapid temporal and wide spatial scales of human acti ...
... humanity–nature relationship and evolutionary ecology is tenuous and contingent, not logically necessary. On evolutionarily significant scales of time, Homo sapiens is a latecomer, a new species in comparison with any other of comparable size. The rapid temporal and wide spatial scales of human acti ...
Human-induced biotic invasions and changes in plankton
... 4. Synthesis and applications. Our findings highlight the dynamic nature of biotic ...
... 4. Synthesis and applications. Our findings highlight the dynamic nature of biotic ...
Mass Extinctions Increase Evenness of Genus Diversity Across
... The Shannon index quantifies evenness of ecological modes, accounting for both number of modes and proportion of genera in each. The Simpson index looks at an aspect of evenness by measuring the probability that two genera randomly selected at a point in time belong to different modes. While it foll ...
... The Shannon index quantifies evenness of ecological modes, accounting for both number of modes and proportion of genera in each. The Simpson index looks at an aspect of evenness by measuring the probability that two genera randomly selected at a point in time belong to different modes. While it foll ...
Content Conference Guide - BayCEER
... changes in wildlife populations and patterns of vegetation across landscapes. Southern Florida may serve as a useful example for the types of change that may occur. It has many threatened or endangered species, it is undergoing changes in vegetation patterns, and it is particularly vulnerable to ris ...
... changes in wildlife populations and patterns of vegetation across landscapes. Southern Florida may serve as a useful example for the types of change that may occur. It has many threatened or endangered species, it is undergoing changes in vegetation patterns, and it is particularly vulnerable to ris ...
LOTPL_MWRA - University of Massachusetts Boston
... – Citizen Scientists registered for the LOTPL project, other Flickr experts (retired biologists, naturalists, etc.) – various outside experts (including those at Bugguide.net) ...
... – Citizen Scientists registered for the LOTPL project, other Flickr experts (retired biologists, naturalists, etc.) – various outside experts (including those at Bugguide.net) ...
Is Infectious Disease Just Another Type of Predator
... Evidence from macroecology supports the hypothesis that hostparasite and predator-prey interactions are essentially similar. Macroecology (Brown 1995; Gaston and Blackburn 2000) has yielded several interrelated, large-scale patterns that apply to both sets of interactions. These patterns include rel ...
... Evidence from macroecology supports the hypothesis that hostparasite and predator-prey interactions are essentially similar. Macroecology (Brown 1995; Gaston and Blackburn 2000) has yielded several interrelated, large-scale patterns that apply to both sets of interactions. These patterns include rel ...
C:\\Documents and Settings\\teeva\\My Documents
... To understand larger ecological processes we need information from various trophic levels. Although the literature regarding pollutant levels in wildlife is extensive, there are only few studies concerning the ecological consequences of environmental pollution on higher trophic levels. Small insecti ...
... To understand larger ecological processes we need information from various trophic levels. Although the literature regarding pollutant levels in wildlife is extensive, there are only few studies concerning the ecological consequences of environmental pollution on higher trophic levels. Small insecti ...
Soundscape ecology
Soundscape ecology is the study of sound within a landscape and its effect on organisms. Sounds may be generated by organisms (biophony), by the physical environment (geophony), or by humans (anthrophony). Soundscape ecologists seek to understand how these different sound sources interact across spatial scales and through time. Variation in soundscapes may have wide-ranging ecological effects as organisms often obtain information from environmental sounds. Soundscape ecologists use recording devices, audio tools, and elements of traditional ecological analyses to study soundscape structure. Increasingly, anthrophony, sometimes referred to in older, more archaic terminology as anthropogenic noise dominates soundscapes, and this type of noise pollution or disturbance has a negative impact on a wide range of organisms. The preservation of natural soundscapes is now a recognized conservation goal.