Life in the Aftermath of Mass Extinctions
... sediments [43,44], this pulse of volcanism released enormous volumes of gases that led to an increased atmospheric CO2 concentration, global warming, acid rain and terrestrial erosion, and ocean acidification [16,19]. At the same time, marine sediments across the PT mass extinction evidence widespre ...
... sediments [43,44], this pulse of volcanism released enormous volumes of gases that led to an increased atmospheric CO2 concentration, global warming, acid rain and terrestrial erosion, and ocean acidification [16,19]. At the same time, marine sediments across the PT mass extinction evidence widespre ...
Invasive Species: A Biodiversity Challenge!
... components of a system and understand the interrelationships within the system; • Determining major threats to biodiversity, including the role of humans in introducing invasive species; • Participating in environmental stewardship as it relates to invasive species; and • Exploring ways to involv ...
... components of a system and understand the interrelationships within the system; • Determining major threats to biodiversity, including the role of humans in introducing invasive species; • Participating in environmental stewardship as it relates to invasive species; and • Exploring ways to involv ...
Natural Selection and Ecological Speciation in Sticklebacks
... differences lead to divergent natural selection on phenotypic traits (morphology, physiology, or behavior) and the resultant divergence in phenotype may bring about reproductive isolation (premating and/or postmating) as a side-effect, both in sympatry and allopatry (see Box 9.2). Divergent selectio ...
... differences lead to divergent natural selection on phenotypic traits (morphology, physiology, or behavior) and the resultant divergence in phenotype may bring about reproductive isolation (premating and/or postmating) as a side-effect, both in sympatry and allopatry (see Box 9.2). Divergent selectio ...
Evolutionary Branching and Sympatric Speciation Caused by
... such a way that the population does not become monomorphic for one of the favored phenotypes. On the other hand, given such ecological conditions, the mating system must evolve such that reproductive isolation ensues between the phenotypes that are favored by disruptive selection. In the history of ...
... such a way that the population does not become monomorphic for one of the favored phenotypes. On the other hand, given such ecological conditions, the mating system must evolve such that reproductive isolation ensues between the phenotypes that are favored by disruptive selection. In the history of ...
The Effect of Deer and Method of Removal of Invasive Lonicera
... exclusively by seed. Jewelweed is sensitive to deer browsing (Williams et al. 2000; Asnani ...
... exclusively by seed. Jewelweed is sensitive to deer browsing (Williams et al. 2000; Asnani ...
Invasive Alien Species Fact Sheet – Dreissena polymorpha
... proportion of the dreissenid community (Mills et al. 1996). D. bugensis must have arrived more recently than D. polymorpha based on differences in size classes, and therefore it seems plausible that D. bugensis is still in the process of expanding its non-indigenous range (May and Marsden 1992, MacI ...
... proportion of the dreissenid community (Mills et al. 1996). D. bugensis must have arrived more recently than D. polymorpha based on differences in size classes, and therefore it seems plausible that D. bugensis is still in the process of expanding its non-indigenous range (May and Marsden 1992, MacI ...
Invasive Species - Parliament of Australia
... It is important that if Australia is to have coherent invasive species responses then all forms of invasive species must be managed from microorganisms to the largest mammal. Recent international pest impacts of some of these invasive species include human health affects, e.g. a monkey pox outbreak ...
... It is important that if Australia is to have coherent invasive species responses then all forms of invasive species must be managed from microorganisms to the largest mammal. Recent international pest impacts of some of these invasive species include human health affects, e.g. a monkey pox outbreak ...
Environmental Biology ~ Allan M. Jones ~ 2001
... course organisation have occurred in order to facilitate both generalisation and specialisation; increasing flexibility within and between institutions is encouraging diversification and especially the facilitation of teaching via modularisation. The latter involves the compartmentalisation of infor ...
... course organisation have occurred in order to facilitate both generalisation and specialisation; increasing flexibility within and between institutions is encouraging diversification and especially the facilitation of teaching via modularisation. The latter involves the compartmentalisation of infor ...
montane, heath and bog habitats - Cairngorms National Park Authority
... • Targeted and expert wildlife management advice from various advisors e.g. FWAG, SAC and free-lance consultants. There are a number of actions that would improve the biodiversity of these upland areas. Action in other adjacent ‘non-montane and moorland’ habitats, such as woodland management, may ha ...
... • Targeted and expert wildlife management advice from various advisors e.g. FWAG, SAC and free-lance consultants. There are a number of actions that would improve the biodiversity of these upland areas. Action in other adjacent ‘non-montane and moorland’ habitats, such as woodland management, may ha ...
Applying the Reference Site Model to Riparian Restoration Sites in
... 2005). One way to reconcile urban stream restoration goals is through riparian planting designs based on reference sites that recreate specific healthy, diverse, and historically relevant communities (Harris et al. 2006). However, there are few guidelines for restoration practitioners choosing which ...
... 2005). One way to reconcile urban stream restoration goals is through riparian planting designs based on reference sites that recreate specific healthy, diverse, and historically relevant communities (Harris et al. 2006). However, there are few guidelines for restoration practitioners choosing which ...
The iconic keystone predator has a pathogen
... and possible transitions in ecological state might result. Further ecological twists are possible in a future where calcium carbonate shells may be more costly to construct as ocean acidification continues, where there is the potential for changing seawater temperatures, and where sea level is risin ...
... and possible transitions in ecological state might result. Further ecological twists are possible in a future where calcium carbonate shells may be more costly to construct as ocean acidification continues, where there is the potential for changing seawater temperatures, and where sea level is risin ...
Genetic considerations in shellfish restoration
... is the only option for supplementation. Furthermore, wild catch may be counterproductive if it removes animals that would otherwise have recruited naturally. Hatcheries can also undertake selective breeding programmes for conservation or commercial ends. For example, disease tolerant lines can be de ...
... is the only option for supplementation. Furthermore, wild catch may be counterproductive if it removes animals that would otherwise have recruited naturally. Hatcheries can also undertake selective breeding programmes for conservation or commercial ends. For example, disease tolerant lines can be de ...
effects of algal and herbivore diversity on the partitioning of biomass
... the mechanisms that govern how biomass is partitioned within and among trophic levels. Here I report results of a laboratory microcosm experiment crossing eight algal compositions (seven monocultures and a polyculture of all seven species) with five ciliate herbivore compositions (no herbivores, thr ...
... the mechanisms that govern how biomass is partitioned within and among trophic levels. Here I report results of a laboratory microcosm experiment crossing eight algal compositions (seven monocultures and a polyculture of all seven species) with five ciliate herbivore compositions (no herbivores, thr ...
Dung beetle communities in Madagascar
... 1 Introduction — Why travel 10 000 km to study dung beetles in Madagascar? Natural history and early ecology were preoccupied with the identification and listing of species found locally, regionally, and globally. Surveys of species revealed many patterns in the occurrence of species that continue t ...
... 1 Introduction — Why travel 10 000 km to study dung beetles in Madagascar? Natural history and early ecology were preoccupied with the identification and listing of species found locally, regionally, and globally. Surveys of species revealed many patterns in the occurrence of species that continue t ...
Sec. 4.3 Succession Guided Notes - Bloomsburg Area School District
... On both Mount Saint Helens and Krakatau, ____________ proceeded through predictable stages. The first plants and animals that arrived had seeds, spores, or adult stages that __________________________________. Hardy ________________________ helped stabilize loose volcanic debris, enabling late ...
... On both Mount Saint Helens and Krakatau, ____________ proceeded through predictable stages. The first plants and animals that arrived had seeds, spores, or adult stages that __________________________________. Hardy ________________________ helped stabilize loose volcanic debris, enabling late ...
Predator cues reduce American beaver use of foraging trails
... risk. In our study area, wolves have large territories and range extensively (Mech 1974); hence, beavers may experience only occasional temporal pulses of risk from wolves. These pulses of risk may be perceived by beavers regardless of actual predation events, which may be affected by available alter ...
... risk. In our study area, wolves have large territories and range extensively (Mech 1974); hence, beavers may experience only occasional temporal pulses of risk from wolves. These pulses of risk may be perceived by beavers regardless of actual predation events, which may be affected by available alter ...
Effects of Forest Land Management on Terrestrial Mollusks
... management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitive species. Proposed management actions “must not result in a loss of species viability or cr ...
... management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitive species. Proposed management actions “must not result in a loss of species viability or cr ...
Effects of Forest Land Management on Terrestrial Mollusks: A
... management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitive species. Proposed management actions “must not result in a loss of species viability or cr ...
... management actions. Under Forest Service policy, agency botanists and biologists complete a Biological Evaluation in which programs and activities are reviewed to determine their potential effects on Sensitive species. Proposed management actions “must not result in a loss of species viability or cr ...
PDF
... physical conditions under which they live. A longstanding theoretical paradigm suggests that species diversity is important because it enhances the productivity and stability of ecosystems (Odum, 1950). However, recent studies acknowledge that no pattern or determinate relationship needs to exist be ...
... physical conditions under which they live. A longstanding theoretical paradigm suggests that species diversity is important because it enhances the productivity and stability of ecosystems (Odum, 1950). However, recent studies acknowledge that no pattern or determinate relationship needs to exist be ...
Ecological Restoration Treatments Increase Butterfly Richness and
... shrubs, and trees. As adults, butterflies are nectar generalists; both life stages represent a broad range of ecological niches within an ecosystem. Because of the broad life history traits found in butterflies, this taxon has been recommended a good ecological indicator of herbaceous communities (S ...
... shrubs, and trees. As adults, butterflies are nectar generalists; both life stages represent a broad range of ecological niches within an ecosystem. Because of the broad life history traits found in butterflies, this taxon has been recommended a good ecological indicator of herbaceous communities (S ...
Arthropods
... specific species within a community. Species: Organisms which share characteristics and can breed together. ...
... specific species within a community. Species: Organisms which share characteristics and can breed together. ...
Dinger EC, Hendrickson DA, Winsborough BM, Marks JC (2006)
... predicts that in a two trophic level system, topdown effects of herbivory will more strongly limit standing biomass and algal growth than resources (Hairston et al., 1960; Fretwell, 1977; Oksanen et al., 1981), whereas resources limit primary production in a three level system, since herbivory is con ...
... predicts that in a two trophic level system, topdown effects of herbivory will more strongly limit standing biomass and algal growth than resources (Hairston et al., 1960; Fretwell, 1977; Oksanen et al., 1981), whereas resources limit primary production in a three level system, since herbivory is con ...
MECHANISMS INFLUENCING THE GROWTH, REPRODUCTION
... southwestern Baltic proper (Segerstrale 1950, 1957). P. femorata is a marine species, with its northern limit around the southern Bothnian Sea (Segerstr&e 1988, 1950). Both species were previously classified in the genus Pontoporeia, as was the north American freshwater Diporeia hovi (Smith 1874) (s ...
... southwestern Baltic proper (Segerstrale 1950, 1957). P. femorata is a marine species, with its northern limit around the southern Bothnian Sea (Segerstr&e 1988, 1950). Both species were previously classified in the genus Pontoporeia, as was the north American freshwater Diporeia hovi (Smith 1874) (s ...