Status Report - The Forest Research Partnership
... central Ontario. To fill some of these gaps, Doug Tozer, has taken the lead on studying variation in the availability of nesting, sap well, and arthropod food resources of this species among managed and unmanaged tolerant and intolerant hardwood forests. This will be used as a model to test hypothes ...
... central Ontario. To fill some of these gaps, Doug Tozer, has taken the lead on studying variation in the availability of nesting, sap well, and arthropod food resources of this species among managed and unmanaged tolerant and intolerant hardwood forests. This will be used as a model to test hypothes ...
Response of macroarthropod assemblages to the loss
... Graves 1996) to infer the relative importance of the regional species pool, environmental filtering, and interspecific competition in the reassembly of arthropod assemblages following loss of hemlock. We examined the importance of the regional species pool only for the ants because we have a reliabl ...
... Graves 1996) to infer the relative importance of the regional species pool, environmental filtering, and interspecific competition in the reassembly of arthropod assemblages following loss of hemlock. We examined the importance of the regional species pool only for the ants because we have a reliabl ...
How molecular tools can help understanding species
... include pollination, seed dispersal, nitrogen fixation and other microbial symbioses as developed in the examples above, but also top-down control of keystone species or ecological engineers by direct predation or through more complex trophic cascades. For example, selective grazing of microbial spe ...
... include pollination, seed dispersal, nitrogen fixation and other microbial symbioses as developed in the examples above, but also top-down control of keystone species or ecological engineers by direct predation or through more complex trophic cascades. For example, selective grazing of microbial spe ...
Latitudinal gradients in biotic niche breadth vary
... 5. Conclusion Overall, our results were inconsistent with the latitude –niche breadth hypothesis in estuarine, marine and terrestrial communities, but consistent with the hypothesis of greater specialization in the tropics in stream and lake food webs. This suggests that different mechanisms may str ...
... 5. Conclusion Overall, our results were inconsistent with the latitude –niche breadth hypothesis in estuarine, marine and terrestrial communities, but consistent with the hypothesis of greater specialization in the tropics in stream and lake food webs. This suggests that different mechanisms may str ...
Observations On Environmental Change in South Africa
... he idea for this book came from Albert van Jaarsveld. He discussed the possibility of a ‘coffee table book’ showing ‘before and after’ images of environmental changes in South Africa with Johan Pauw, who saw the relevance and necessity for such a book and its value for promoting the work of the Sout ...
... he idea for this book came from Albert van Jaarsveld. He discussed the possibility of a ‘coffee table book’ showing ‘before and after’ images of environmental changes in South Africa with Johan Pauw, who saw the relevance and necessity for such a book and its value for promoting the work of the Sout ...
The Endangered Species Act and the Oil and Gas Industry
... likely to jeopardize the continued existence of any endangered species or threatened species or result in the destruction or adverse modification” of designated critical habitat. 16 U.S.C. §1537(a)(2) (emphasis added). ...
... likely to jeopardize the continued existence of any endangered species or threatened species or result in the destruction or adverse modification” of designated critical habitat. 16 U.S.C. §1537(a)(2) (emphasis added). ...
ADVANCED PLACEMENT ENVIRONMENTAL SCIENCE
... 44. The biggest stores for carbon are found in these “sinks”: Living organisms (especially plants) and troposphere Ocean water and living phytoplankton The African continent and Antarctica Greenland and the Boreal Forests The ocean floor and continents 45. The energy of the sun is primarily the resu ...
... 44. The biggest stores for carbon are found in these “sinks”: Living organisms (especially plants) and troposphere Ocean water and living phytoplankton The African continent and Antarctica Greenland and the Boreal Forests The ocean floor and continents 45. The energy of the sun is primarily the resu ...
A complex adaptive systems approach
... efficient species will exclude others by competition (sampling effect sensu Tilman et al. 1997). In this case there is no complementarity, and for any given environmental condition there exists only one single optimal value of the trait (for example the lowest resource level that sustains positive g ...
... efficient species will exclude others by competition (sampling effect sensu Tilman et al. 1997). In this case there is no complementarity, and for any given environmental condition there exists only one single optimal value of the trait (for example the lowest resource level that sustains positive g ...
File - Mr Chang`s Science Hub
... Demonstrate understanding of the Demonstrate in-depth understanding of Demonstrate comprehensive understanding responses of plants and animals to their the responses of plants and animals to of the responses of plants and animals to external environment. their external environment. their exter ...
... Demonstrate understanding of the Demonstrate in-depth understanding of Demonstrate comprehensive understanding responses of plants and animals to their the responses of plants and animals to of the responses of plants and animals to external environment. their external environment. their exter ...
Bio-Protection & Ecology Division Lake Rotokare Scenic Reserve Invertebrate Ecological Restoration Proposal
... methods of monitoring are obviously advantageous and can often double as a restoration technique for providing habitat or a safe refuge e.g. weta motels for tree weta species (Bowie et al. 2006), spiders (Hodge et al. 2007), or wooden discs for leaf‐vein slugs and cara ...
... methods of monitoring are obviously advantageous and can often double as a restoration technique for providing habitat or a safe refuge e.g. weta motels for tree weta species (Bowie et al. 2006), spiders (Hodge et al. 2007), or wooden discs for leaf‐vein slugs and cara ...
KELP FORESTS: past, present and future
... In 1980s, census conducted: 150,000 otters on earth, mostly in Alaska 2000 otters found in California, population was thought to be extinct there ...
... In 1980s, census conducted: 150,000 otters on earth, mostly in Alaska 2000 otters found in California, population was thought to be extinct there ...
full-text pdf - phylodiversity.net
... The carbon flux from woody debris, a crucial uncertainty within global carbon-climate models, is simultaneously affected by climate, site environment and species-based variation in wood quality. In the first global analysis attempting to explicitly tease out the wood quality contribution to decompos ...
... The carbon flux from woody debris, a crucial uncertainty within global carbon-climate models, is simultaneously affected by climate, site environment and species-based variation in wood quality. In the first global analysis attempting to explicitly tease out the wood quality contribution to decompos ...
Journal of Tropical Ecology - CESCO
... would imply that negative density-dependent processes associated with large seed crops would limit dispersal by frugivores (Wright et al. 2005). According to this hypothesis, Herrera et al. (1998) found that plants dispersed by frugivore mutualists were less variable in inter-annual seed production ...
... would imply that negative density-dependent processes associated with large seed crops would limit dispersal by frugivores (Wright et al. 2005). According to this hypothesis, Herrera et al. (1998) found that plants dispersed by frugivore mutualists were less variable in inter-annual seed production ...
Fluctuating resources in plant communities: a general theory of invasibility FORUM
... Our theory rests on the simple assumption that an invading species must have access to available resources, e.g. light, nutrients, and water, and that a species will enjoy greater success in invading a community if it does not encounter intense competition for these resources from resident species. ...
... Our theory rests on the simple assumption that an invading species must have access to available resources, e.g. light, nutrients, and water, and that a species will enjoy greater success in invading a community if it does not encounter intense competition for these resources from resident species. ...
introduced browsing mammals in new zealand natural forests
... unique opportunity to determine the impacts of introduction of an entire functional group of alien animals to a habitat from which that group was previously absent. We sampled 30 long-term fenced exclosure plots in indigenous forests throughout New Zealand to evaluate community- and ecosystem-level ...
... unique opportunity to determine the impacts of introduction of an entire functional group of alien animals to a habitat from which that group was previously absent. We sampled 30 long-term fenced exclosure plots in indigenous forests throughout New Zealand to evaluate community- and ecosystem-level ...
Wildlife Management
... Era of Preservation (cont’d) • Lacey Act of 1900 regulated interstate shipment of illegally killed ...
... Era of Preservation (cont’d) • Lacey Act of 1900 regulated interstate shipment of illegally killed ...
Directing Research to Reduce the Impacts of
... Just as not all nonindigenous species have large effects, one invader may have large effects in some areas and negligible ones in others. For example, rats can be devastating to native birds on oceanic islands, but have far less effect on islands with indigenous rats or land crabs, presumably becaus ...
... Just as not all nonindigenous species have large effects, one invader may have large effects in some areas and negligible ones in others. For example, rats can be devastating to native birds on oceanic islands, but have far less effect on islands with indigenous rats or land crabs, presumably becaus ...
Long-footed Potoroo
... 4. The habitat of Long-footed Potoroo is described in detail in the NSW Recovery Plan (NPWS 2002), largely based on studies of this species from Victoria. The Long-footed Potoroo has been found in a range of vegetation types, although proximity to wetter forest types and the availability of dense gr ...
... 4. The habitat of Long-footed Potoroo is described in detail in the NSW Recovery Plan (NPWS 2002), largely based on studies of this species from Victoria. The Long-footed Potoroo has been found in a range of vegetation types, although proximity to wetter forest types and the availability of dense gr ...
Coexistence, niches and biodiversity effects on ecosystem functioning
... Additive partitioning of biodiversity effects The main analytical approach used to distinguish between the effects of overyielding and competitive dominance on productivity (or surrogates like herbaceous biomass) is the additive partitioning of biodiversity effects (Box 1; Loreau & Hector 2001). The ...
... Additive partitioning of biodiversity effects The main analytical approach used to distinguish between the effects of overyielding and competitive dominance on productivity (or surrogates like herbaceous biomass) is the additive partitioning of biodiversity effects (Box 1; Loreau & Hector 2001). The ...
The Overriding Importance of Environmental Context in Determining
... Later studies have confirmed the susceptibility of whelks to hydrodynamic and thermal stress (e.g., Bertness et al. 1999; Dahlhoff et al. 2001; Denny 1988; Garrity 1984; Leonard et al. 1998). Thus, the role of Nucella lapillus in controlling the abundance and zonation of barnacles and mussels and, i ...
... Later studies have confirmed the susceptibility of whelks to hydrodynamic and thermal stress (e.g., Bertness et al. 1999; Dahlhoff et al. 2001; Denny 1988; Garrity 1984; Leonard et al. 1998). Thus, the role of Nucella lapillus in controlling the abundance and zonation of barnacles and mussels and, i ...
BIODIVERSITY AND ECOSYSTEM FUNCTION: DO SPECIES
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
... human life on the planet? Does biodiversity matter? Internationally, research has begun to investigate whether the current unprecedented losses in biodiversity will damage the functioning of ecosystems. This paper reviews this work and highlights the general patterns identified. Scientific evidence ...
Slide 1
... In our study, we found that buckthorn density was directly related to maple density and inversely related to boxelder density. These relationships may reflect a more hospitable environment for buckthorn recruitment beneath maples than boxelders, or they may simply reflect a spurious relationship ref ...
... In our study, we found that buckthorn density was directly related to maple density and inversely related to boxelder density. These relationships may reflect a more hospitable environment for buckthorn recruitment beneath maples than boxelders, or they may simply reflect a spurious relationship ref ...
Environment Landforms
... is higher than in more urbanized watersheds such as the Don (seven per cent) and the Highland (six per cent), it is still low considering that historically it was probably closer to 90 per cent. On a positive note, forest cover has slowly increased over the last 75 years due to a reduction in the in ...
... is higher than in more urbanized watersheds such as the Don (seven per cent) and the Highland (six per cent), it is still low considering that historically it was probably closer to 90 per cent. On a positive note, forest cover has slowly increased over the last 75 years due to a reduction in the in ...
PDF - Wiley Online Library
... (< 1.8 mm) individuals. Times until first movement of those individuals which did move during the 45 min were quite variable; mean values were found to be generally similar for all size classes. Movement by individuals during the experiment was initiated in part by physical contact with other indivi ...
... (< 1.8 mm) individuals. Times until first movement of those individuals which did move during the 45 min were quite variable; mean values were found to be generally similar for all size classes. Movement by individuals during the experiment was initiated in part by physical contact with other indivi ...
Intraspecific priority effects and disease interact to alter population
... Abstract. Intraspecific variation may shape colonization of new habitat patches through a variety of mechanisms. In particular, trait variation among colonizing individuals can produce intraspecific priority effects (IPEs), where early arrivers of a single species affect the establishment or growth of ...
... Abstract. Intraspecific variation may shape colonization of new habitat patches through a variety of mechanisms. In particular, trait variation among colonizing individuals can produce intraspecific priority effects (IPEs), where early arrivers of a single species affect the establishment or growth of ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.