Species interactions and energy transfer in aquatic food webs
... Diet tracing using molecular methods Molecular tools such as DNA barcoding analyses of environmental DNA are useful for gaining insight on species existence in the ambient water (Thomsen et al. 2012), or dietary ingestion from gut or faecal content (Pompanon et al. 2012). The use of DNA barcoding p ...
... Diet tracing using molecular methods Molecular tools such as DNA barcoding analyses of environmental DNA are useful for gaining insight on species existence in the ambient water (Thomsen et al. 2012), or dietary ingestion from gut or faecal content (Pompanon et al. 2012). The use of DNA barcoding p ...
ufr sciences
... propagation channel was performed in order to obtain the specifications for the RF receiver. Based on the RF transmitter specifications and noise propagation channel theoretical results, three types of suitable RF receiver architectures were discussed and compared in term of power consumption and No ...
... propagation channel was performed in order to obtain the specifications for the RF receiver. Based on the RF transmitter specifications and noise propagation channel theoretical results, three types of suitable RF receiver architectures were discussed and compared in term of power consumption and No ...
BIOSPHERE Chapter 3
... ecosystem are interconnected and changing even one thing impacts the whole ecosystem. When one tugs at a single thing in nature, he finds it attached to the rest of the world. ~John Muir, naturalist, Sierra Club founder ...
... ecosystem are interconnected and changing even one thing impacts the whole ecosystem. When one tugs at a single thing in nature, he finds it attached to the rest of the world. ~John Muir, naturalist, Sierra Club founder ...
Refocusing Ecocentrism: De-emphasizing Stability
... weeks each year and then dry up are ephemeral on a time scale of months but constant if the scale is years. Integrity is also used in a variety of senses. The general idea is that the elements of the ecosystem are blended into a unified whole. This idea is commonly associated with the view that ecos ...
... weeks each year and then dry up are ephemeral on a time scale of months but constant if the scale is years. Integrity is also used in a variety of senses. The general idea is that the elements of the ecosystem are blended into a unified whole. This idea is commonly associated with the view that ecos ...
Habitat heterogeneity and mammalian predatorprey interactions
... spatially mediated mechanisms that affect kill rates can ultimately be related to the fact that spatial heterogeneity introduces a difference between the total prey population density and the proportion which the predator has the potential to kill and consume. If this difference is not taken into ac ...
... spatially mediated mechanisms that affect kill rates can ultimately be related to the fact that spatial heterogeneity introduces a difference between the total prey population density and the proportion which the predator has the potential to kill and consume. If this difference is not taken into ac ...
Validation of an Instrument to Measure the Change in Ecological
... ecological vocabulary, ecological knowledge and environmental education. Evidence of this relationship is found in environmental education definitions, goals and research. Delegates assembled at the 1977 United Nations Intergovernmental Conference in Thilisi, Georgia, USSR, agreed upon the following ...
... ecological vocabulary, ecological knowledge and environmental education. Evidence of this relationship is found in environmental education definitions, goals and research. Delegates assembled at the 1977 United Nations Intergovernmental Conference in Thilisi, Georgia, USSR, agreed upon the following ...
2008
... wildlife population regulation, human induced topdown processes occur directly via the introduction of exotic predators (Alterio et al. 1998, Harding et al. 2001). Indirectly, the addition of anthropogenic resources facilitates the expansion of synanthropic predators (predators benefiting from anthro ...
... wildlife population regulation, human induced topdown processes occur directly via the introduction of exotic predators (Alterio et al. 1998, Harding et al. 2001). Indirectly, the addition of anthropogenic resources facilitates the expansion of synanthropic predators (predators benefiting from anthro ...
Life-history evolution in the anthropocene: effects of
... Abstract Variation in life-history traits can have major impacts on the ecological and evolutionary responses of populations to environmental change. Life-history variation often results from trade-offs that arise because individuals have a limited pool of resources to allocate among traits. However ...
... Abstract Variation in life-history traits can have major impacts on the ecological and evolutionary responses of populations to environmental change. Life-history variation often results from trade-offs that arise because individuals have a limited pool of resources to allocate among traits. However ...
LOCAL DISTURBANCE CYCLES AND THE MAINTENANCE OF
... Abstract. In marine systems, the occurrence and implications of disturbance–recovery cycles have been revealed at the landscape level, but only in demographically open or closed systems where landscape-level dynamics are assumed to have no feedback effect on regional dynamics. We present a mussel me ...
... Abstract. In marine systems, the occurrence and implications of disturbance–recovery cycles have been revealed at the landscape level, but only in demographically open or closed systems where landscape-level dynamics are assumed to have no feedback effect on regional dynamics. We present a mussel me ...
Impact of pocket gopher disturbance on plant species diversity in a
... in four separate plots, for a total of 40 4 x 4 m plots. This community is a dosed grassland (Grubb 1977); in the absence of pocket gopher disturbance there is continuous cover. Individual seedlings were marked and classified as either growing in open (disturbed) or closed (undisturbed) habitat (see ...
... in four separate plots, for a total of 40 4 x 4 m plots. This community is a dosed grassland (Grubb 1977); in the absence of pocket gopher disturbance there is continuous cover. Individual seedlings were marked and classified as either growing in open (disturbed) or closed (undisturbed) habitat (see ...
How can we apply theories of habitat selection to wildlife
... habitat quality. The net result is that individuals will switch from being selective in their preferred habitat and become opportunistic by using both habitats at a higher density than they would otherwise (the isodar intercept has increased) (Fig. 1). The density-dependent switch in behaviour, call ...
... habitat quality. The net result is that individuals will switch from being selective in their preferred habitat and become opportunistic by using both habitats at a higher density than they would otherwise (the isodar intercept has increased) (Fig. 1). The density-dependent switch in behaviour, call ...
Discussion Paper on Hearing Loss
... dBA - Measurement of a sound level using the A scale of a sound-level meter; with the A filter, low and very high frequencies are attenuated, thus giving greater weight to those frequencies most likely to be damaging to the ear. dBHL - Hearing level referenced to a pressure of 20 uPa. This reference ...
... dBA - Measurement of a sound level using the A scale of a sound-level meter; with the A filter, low and very high frequencies are attenuated, thus giving greater weight to those frequencies most likely to be damaging to the ear. dBHL - Hearing level referenced to a pressure of 20 uPa. This reference ...
Biodiversity, Functioning - School of Natural Resources and
... standing stock at the this lower trophic level (Fox 2004b, Petchey et al. 2004a, Fox 2005a, Duffy et al. 2007). This leaves positive effects of biodiversity for within-trophic level (a large number of studies surveyed in the two meta-analyses) and for symbiont relationships. However, these patterns ...
... standing stock at the this lower trophic level (Fox 2004b, Petchey et al. 2004a, Fox 2005a, Duffy et al. 2007). This leaves positive effects of biodiversity for within-trophic level (a large number of studies surveyed in the two meta-analyses) and for symbiont relationships. However, these patterns ...
An overview of studies on trophic ecology in the
... Trophodynamic aspects of fish in Yucatan have been studied, for example, by Vega-Cendejas et al. (1987). ...
... Trophodynamic aspects of fish in Yucatan have been studied, for example, by Vega-Cendejas et al. (1987). ...
audiology matters In this issue... Hyperacusis
... of the developed world, and particularly the United States of America, this is of some considerable topical importance. Writing from the United Kingdom, Prof Andy Moorhouse and Tim Husband consider the situation of individuals who have a complaint of low frequency environmental sound. Such complaint ...
... of the developed world, and particularly the United States of America, this is of some considerable topical importance. Writing from the United Kingdom, Prof Andy Moorhouse and Tim Husband consider the situation of individuals who have a complaint of low frequency environmental sound. Such complaint ...
Ground Work: Basic Concepts of Ecological Restoration
... habitat, or a series of habitats, and habitats are ecosystems. If we ensure that an ecosystem and its processes are intact, then the species which depend on that ecosystem have a far better chance of survival than if our efforts are concentrated on maintaining population levels of a particular speci ...
... habitat, or a series of habitats, and habitats are ecosystems. If we ensure that an ecosystem and its processes are intact, then the species which depend on that ecosystem have a far better chance of survival than if our efforts are concentrated on maintaining population levels of a particular speci ...
Bibliography ORV and Human Disturbance of Coastal Birds and
... Impact on Coastal Waterbirds (nonPiping plover) Human Disturbance Impact on Coastal Waterbirds (nonPiping plover) Human Disturbance Impacts on Coastal Waterbirds (nonpiping plover) ...
... Impact on Coastal Waterbirds (nonPiping plover) Human Disturbance Impact on Coastal Waterbirds (nonPiping plover) Human Disturbance Impacts on Coastal Waterbirds (nonpiping plover) ...
Trophic Ecology: Bottom-Up and Top
... (e.g., insect larvae, annelids, mussels, and crustaceans) influences primary producer nutrient limitation and dynamics in freshwater and marine systems (Haertel-Borer et al., 2004; Conroy and Edwards, 2005; Alves et al., 2010; Atkinson et al., 2013). Similarly, nutrient recycling by zooplankton (e.g. ...
... (e.g., insect larvae, annelids, mussels, and crustaceans) influences primary producer nutrient limitation and dynamics in freshwater and marine systems (Haertel-Borer et al., 2004; Conroy and Edwards, 2005; Alves et al., 2010; Atkinson et al., 2013). Similarly, nutrient recycling by zooplankton (e.g. ...
Guha Dharmarajan PhD: Population genetics (Department of
... Serologic survey for selected infectious diseases in raccoons (Procyon lotor) in Indiana, USA. Journal of Wildlife Diseases 45: 531-536. Anderson SJ, Fike JA, Dharmarajan G, Rhodes OE (2007) Characterization of 12 polymorphic microsatellite loci for eastern chipmunks (Tamias striatus). Molecular Eco ...
... Serologic survey for selected infectious diseases in raccoons (Procyon lotor) in Indiana, USA. Journal of Wildlife Diseases 45: 531-536. Anderson SJ, Fike JA, Dharmarajan G, Rhodes OE (2007) Characterization of 12 polymorphic microsatellite loci for eastern chipmunks (Tamias striatus). Molecular Eco ...
Detection of alternative stable states in marine communities
... attraction may shift in shape and location in state space with changes in parameters, but different equilibrium states under different parameter conditions cannot be considered alternative stable states. Thus demonstrations that an ecosystem can show abrupt shifts in either equilibrium conditions or ...
... attraction may shift in shape and location in state space with changes in parameters, but different equilibrium states under different parameter conditions cannot be considered alternative stable states. Thus demonstrations that an ecosystem can show abrupt shifts in either equilibrium conditions or ...
Grades 9-12 Teacher Guide
... help high school students understand how all the pieces of their science knowledge are inter-related and to demonstrate how to connect those pieces to solve the puzzle of the natural world around them. This teacher guide includes activities that have been designed to be incorporated into and to sa ...
... help high school students understand how all the pieces of their science knowledge are inter-related and to demonstrate how to connect those pieces to solve the puzzle of the natural world around them. This teacher guide includes activities that have been designed to be incorporated into and to sa ...
binaural sound localization - Carnegie Mellon School of Computer
... IIDs produced by distant sound sources can become as large as 25 dB in magnitude at high frequencies, and the IID can become greater still when a sound source is very close to one of the two ears. The fissures of the outer ears (or pinnae) impose further spectral coloration on the signals that arriv ...
... IIDs produced by distant sound sources can become as large as 25 dB in magnitude at high frequencies, and the IID can become greater still when a sound source is very close to one of the two ears. The fissures of the outer ears (or pinnae) impose further spectral coloration on the signals that arriv ...
A FIELD ASSESSMENT OF THE DEFENSIVE RESPONSES OF
... due to evolved induced responses for detection of predatory bats. A moth responding to a bat call in flight, or not responding while at rest, is an important distinction with consequences for fitness. We found that sympatric moths of various species and sizes exhibited several different behavioral r ...
... due to evolved induced responses for detection of predatory bats. A moth responding to a bat call in flight, or not responding while at rest, is an important distinction with consequences for fitness. We found that sympatric moths of various species and sizes exhibited several different behavioral r ...
2 Chapter: haNSatON heariNg SyStemS.
... family presents itself as a classic all-rounder with a wide range of functions. A practical, labelled rocker switch allows an intuitive and comfortable operation of the device. In this way it is possible for your customers to switch between programs quickly and without fuss so that volume or sound o ...
... family presents itself as a classic all-rounder with a wide range of functions. A practical, labelled rocker switch allows an intuitive and comfortable operation of the device. In this way it is possible for your customers to switch between programs quickly and without fuss so that volume or sound o ...
- Wiley Online Library
... whose primary, preferred prey are wildebeests (Connochaetes taurinus) and zebras (Equus quagga), while lion predation on secondary prey such as giraffes (Giraffa camelopardalis) may change according to the relative abundance of the primary prey species. 3. We used demographic data from five subpopu ...
... whose primary, preferred prey are wildebeests (Connochaetes taurinus) and zebras (Equus quagga), while lion predation on secondary prey such as giraffes (Giraffa camelopardalis) may change according to the relative abundance of the primary prey species. 3. We used demographic data from five subpopu ...
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.