The Niah Excavations al1d al1 Assessment of the Impact of Early
... part of the West mouth site as signs of a "pit dwelling" excavated in the contemporary cave floor. In later writings, however, he did not elaborate this apparently interesting topic, and my impression is that he had second thoughts. At the time of the excavation, a detached and inexperienced observe ...
... part of the West mouth site as signs of a "pit dwelling" excavated in the contemporary cave floor. In later writings, however, he did not elaborate this apparently interesting topic, and my impression is that he had second thoughts. At the time of the excavation, a detached and inexperienced observe ...
13.1 Ecologists Study Relationships
... to study a forest fire in an ecosystem? What might be some of the key variables used to create the model • Ecologists could use models to determine the movement of the fire, locations where prescribed burns should take place, and areas with the potential for outbreaks. • Key variables might include: ...
... to study a forest fire in an ecosystem? What might be some of the key variables used to create the model • Ecologists could use models to determine the movement of the fire, locations where prescribed burns should take place, and areas with the potential for outbreaks. • Key variables might include: ...
Supplementary Online Material
... effects of one or more global change drivers on one or more interspecific interaction types. Note, the response variable of interest was the strength or frequency of the interaction itself, rather than the diversity of species, the response of individual species involved in the interaction, or the e ...
... effects of one or more global change drivers on one or more interspecific interaction types. Note, the response variable of interest was the strength or frequency of the interaction itself, rather than the diversity of species, the response of individual species involved in the interaction, or the e ...
Ecosystem-Encyclopedia-Research-Project-Directions
... species, as well as a picture of the organism. Use arrows to show the flow of energy from one organism to the next. The components of your food chain MUST be plants and animals that exist in the ecosystem that you are researching. You need at least 1 producer, 2 consumers, and 1 decomposer in your f ...
... species, as well as a picture of the organism. Use arrows to show the flow of energy from one organism to the next. The components of your food chain MUST be plants and animals that exist in the ecosystem that you are researching. You need at least 1 producer, 2 consumers, and 1 decomposer in your f ...
Ecology
... Following a disturbance, there is a time lag before the community returns to its original state. Lower trophic levels sustain higher trophic levels, so there is a longer time lag to reestablish higher trophic levels. If disturbance is frequent, higher trophic levels may never become ...
... Following a disturbance, there is a time lag before the community returns to its original state. Lower trophic levels sustain higher trophic levels, so there is a longer time lag to reestablish higher trophic levels. If disturbance is frequent, higher trophic levels may never become ...
Parallel ecological networks in ecosystems Olff, Han
... ecosystems, and to study the interplay of networks based on consumer–resource interactions with networks based on other types of interaction that operate within the same ecosystem. The goal of this paper is to contribute to the solutions for both problems. First, we briefly discuss the general princ ...
... ecosystems, and to study the interplay of networks based on consumer–resource interactions with networks based on other types of interaction that operate within the same ecosystem. The goal of this paper is to contribute to the solutions for both problems. First, we briefly discuss the general princ ...
Parallel ecological networks in ecosystems
... conservation-oriented research often towards a speciescentred approach (in which all such interactions are included for a particular species). However, in such species-centred research, the operation of the key indirect effects among species that characterize ecological networks are probably missed. ...
... conservation-oriented research often towards a speciescentred approach (in which all such interactions are included for a particular species). However, in such species-centred research, the operation of the key indirect effects among species that characterize ecological networks are probably missed. ...
A synthesis of the outcomes from the Strait of Georgia Ecosystem
... strong seasonality of pelagic productivity: The most productive period in the Strait of Georgia is from late winter to early summer, when resident fish populations such as Pacific hake and migratory populations such as Pacific herring are spawning, and juvenile salmon enter the Strait. This enhanc ...
... strong seasonality of pelagic productivity: The most productive period in the Strait of Georgia is from late winter to early summer, when resident fish populations such as Pacific hake and migratory populations such as Pacific herring are spawning, and juvenile salmon enter the Strait. This enhanc ...
Untitled - Comité pour la protection du parc de la Gatineau
... environments has visibly deteriorated over the years, resulting in a number of conservation problems which the Park must now address. The conservation issues identified are: ...
... environments has visibly deteriorated over the years, resulting in a number of conservation problems which the Park must now address. The conservation issues identified are: ...
- MATEC Web of Conferences
... within the coral skeleton as long as they do not experience a diagenesis. These proxy climate indicators provide paleoclimatic records which are important for the assessment of the global climate system and the mechanisms of decadal climate variability [2]. It is clear that the study on climate chan ...
... within the coral skeleton as long as they do not experience a diagenesis. These proxy climate indicators provide paleoclimatic records which are important for the assessment of the global climate system and the mechanisms of decadal climate variability [2]. It is clear that the study on climate chan ...
Cape Howe Marine National Park
... Although they are very different physically and biologically, the land, atmosphere and marine environments are interconnected. Water and gases are transferred between oceans and the atmosphere. There are animals with both marine and freshwater life stages and some species breed in estuaries where fr ...
... Although they are very different physically and biologically, the land, atmosphere and marine environments are interconnected. Water and gases are transferred between oceans and the atmosphere. There are animals with both marine and freshwater life stages and some species breed in estuaries where fr ...
- Centre for Biodiversity Theory and Modelling
... conservation-oriented research often towards a speciescentred approach (in which all such interactions are included for a particular species). However, in such species-centred research, the operation of the key indirect effects among species that characterize ecological networks are probably missed. ...
... conservation-oriented research often towards a speciescentred approach (in which all such interactions are included for a particular species). However, in such species-centred research, the operation of the key indirect effects among species that characterize ecological networks are probably missed. ...
Changes in grassland songbird abundances through the northern mixed-grass prairie.
... northern mixed-grass prairies on the grassland songbird community. Point counts were conducted to assess songbird species abundances in burned-grazed, burned-ungrazed, unburned-grazed, and unburned-ungrazed pastures along with habitat structure (litter depth, vegetation height and density) over a fi ...
... northern mixed-grass prairies on the grassland songbird community. Point counts were conducted to assess songbird species abundances in burned-grazed, burned-ungrazed, unburned-grazed, and unburned-ungrazed pastures along with habitat structure (litter depth, vegetation height and density) over a fi ...
coupled - jamstec
... permissible emission. Total reduction of the accumulated CO2 emission to 2300 is about 20%. • If SP550 is the target, 50% reduction until year 2050 is not necessary. However, it results in ~3oC temperature rise. In any way, much further reduction of CO2 is necessary for final stabilization. • Land r ...
... permissible emission. Total reduction of the accumulated CO2 emission to 2300 is about 20%. • If SP550 is the target, 50% reduction until year 2050 is not necessary. However, it results in ~3oC temperature rise. In any way, much further reduction of CO2 is necessary for final stabilization. • Land r ...
Peckarsky et al. (2008) - Rocky Mountain Biological Laboratory
... populations to levels where moose cause very little damage to balsam fir (Post et al. 1999). The role of consumption by wolves becomes diminished when NAO forcing causes snowfall levels to decline and moose can disperse more widely across the landscape during low snow winters. Hunting in large packs ...
... populations to levels where moose cause very little damage to balsam fir (Post et al. 1999). The role of consumption by wolves becomes diminished when NAO forcing causes snowfall levels to decline and moose can disperse more widely across the landscape during low snow winters. Hunting in large packs ...
Restoration Ecology: Interventionist Approaches for - LERF
... by Universidade de Sao Paulo (USP) on 02/22/11. For personal use only. ...
... by Universidade de Sao Paulo (USP) on 02/22/11. For personal use only. ...
modeling the role of primary productivity disruption in end
... The trophic network modeled in our analysis is based on the fauna of the Late Permian-age Dicynodon Assemblage Zone of the Karoo Basin of South Africa. The Dicynodon zone is the youngest of six Middle to Late Permian-age terrestrial faunal assemblages found in South Africa, and ends at the Permo-Tri ...
... The trophic network modeled in our analysis is based on the fauna of the Late Permian-age Dicynodon Assemblage Zone of the Karoo Basin of South Africa. The Dicynodon zone is the youngest of six Middle to Late Permian-age terrestrial faunal assemblages found in South Africa, and ends at the Permo-Tri ...
bc grasslands stewardship guide.indd
... he beauty and diversity of BC’s grasslands are unique. Grasslands are home to everything from lichen to curlews, salamanders to cacti, sharp-tailed grouse to elk. Visitors and residents use the grasslands for recreation. The cattle industry depends on healthy grasslands to help provide a secure food ...
... he beauty and diversity of BC’s grasslands are unique. Grasslands are home to everything from lichen to curlews, salamanders to cacti, sharp-tailed grouse to elk. Visitors and residents use the grasslands for recreation. The cattle industry depends on healthy grasslands to help provide a secure food ...
LARGE PREDATORS IN THE BARENTS REGION LARGE
... Predators are politics, and the predator management in all of the Barents Countries is based on decisions made by politicians. All the four Barents Countries have different population goals and management strategies for each of the predator species, a situation further complicated because many of th ...
... Predators are politics, and the predator management in all of the Barents Countries is based on decisions made by politicians. All the four Barents Countries have different population goals and management strategies for each of the predator species, a situation further complicated because many of th ...
Yellowstone Cougar Project - Yellowstone Park Foundation
... We conducted snow-tracking surveys from January through March 2014 along 16 survey routes (10 primary, 6 secondary). The routes were designed to increase the probability of encountering cougar sign based on long-term knowledge of cougar habitat use, while also allowing us to maximize travel efficien ...
... We conducted snow-tracking surveys from January through March 2014 along 16 survey routes (10 primary, 6 secondary). The routes were designed to increase the probability of encountering cougar sign based on long-term knowledge of cougar habitat use, while also allowing us to maximize travel efficien ...
The emerging role of pharmacology in understanding consumer
... metabolites produced by microbes, algae, and invertebrates. Nearly 30 years of study have yielded hundreds of examples in which secondary metabolites alter the foraging behavior or fitness of aquatic consumers, or both. However, our understanding of the mechanisms that mediate the fate and consequen ...
... metabolites produced by microbes, algae, and invertebrates. Nearly 30 years of study have yielded hundreds of examples in which secondary metabolites alter the foraging behavior or fitness of aquatic consumers, or both. However, our understanding of the mechanisms that mediate the fate and consequen ...
bison management plaN
... composition, structure, and function of natural and modified ecosystems for long-term sustainability.1 These plans are based on a collaboratively developed vision of desired future conditions that integrates ecological, socioeconomic, and institutional perspectives applied within a geographic framew ...
... composition, structure, and function of natural and modified ecosystems for long-term sustainability.1 These plans are based on a collaboratively developed vision of desired future conditions that integrates ecological, socioeconomic, and institutional perspectives applied within a geographic framew ...
The contributions of livestock species and breeds to
... vital habitats for birds. Their selective feeding can help the growth of, or allow access to, plant species and parts preferred by wildlife (feed facilitation). By carrying seeds in their guts and coats, livestock distribute plant life across habitats (habitat connectivity). Most of the world’s prim ...
... vital habitats for birds. Their selective feeding can help the growth of, or allow access to, plant species and parts preferred by wildlife (feed facilitation). By carrying seeds in their guts and coats, livestock distribute plant life across habitats (habitat connectivity). Most of the world’s prim ...
Nitrogen in Insects - Arizona State University
... phylogeny for two reasons. If either trophic level or N content are significantly conserved during phylogenesis, treating species’ values as independent data points would overestimate the degrees of freedom available for testing the association of N content with trophic level per se (Felsenstein 198 ...
... phylogeny for two reasons. If either trophic level or N content are significantly conserved during phylogenesis, treating species’ values as independent data points would overestimate the degrees of freedom available for testing the association of N content with trophic level per se (Felsenstein 198 ...
Pleistocene Park
Pleistocene Park (Russian: Плейстоценовый парк) is a nature reserve on the Kolyma River south of Chersky in the Sakha Republic, Russia, in northeastern Siberia, where an attempt is being made to recreate the northern subarctic steppe grassland ecosystem that flourished in the area during the last glacial period.The project is being led by Russian researcher Sergey Zimov, with hopes to back the hypothesis that overhunting, and not climate change, was primarily responsible for the extinction of wildlife and the disappearance of the grasslands at the end of the Pleistocene epoch.A further aim is to research the climatic effects of the expected changes in the ecosystem. Here the hypothesis is that the change from tundra to grassland will result in a raised ratio of energy emission to energy absorption of the area, leading to less thawing of permafrost and thereby less emission of greenhouse gases.To study this, large herbivores have been released, and their effect on the local fauna is being monitored. Preliminary results point at the ecologically low-grade tundra biome being converted into a productive grassland biome, and at the energy emission of the area being raised.A documentary is being produced about the park by an American journalist and filmmaker.