asa firth lecture 2015 - Association of Social Anthropologists of the
... debates. Consider first the formalists: in biology, these are called neoDarwinians. This perspective came together in the 20th century from the merging of Darwin’s evolutionary theory and the apparatus of genetic inheritance. Recall that Darwin did not know about genetics. It took the early 20th cen ...
... debates. Consider first the formalists: in biology, these are called neoDarwinians. This perspective came together in the 20th century from the merging of Darwin’s evolutionary theory and the apparatus of genetic inheritance. Recall that Darwin did not know about genetics. It took the early 20th cen ...
Document
... Tropical forests are disappearing at alarming rates worldwide (Laurance, 1999). The loss and fragmentation of tropical forests appears to be the single greatest threat to the world’s biological diversity (Whitmore, 1990; Huston, 1994). One of the resolutions of the Convention on Biological Diversity ...
... Tropical forests are disappearing at alarming rates worldwide (Laurance, 1999). The loss and fragmentation of tropical forests appears to be the single greatest threat to the world’s biological diversity (Whitmore, 1990; Huston, 1994). One of the resolutions of the Convention on Biological Diversity ...
Report of the Ad Hoc Technical Expert Group on Biodiversity and
... Executive Secretary and contained in annex II to this report. It was agreed that the work would consist of finalizing the report chapters taking into account the reviews from Parties, other Governments, experts, and non-governmental organizations, based on the second version of the report. The secon ...
... Executive Secretary and contained in annex II to this report. It was agreed that the work would consist of finalizing the report chapters taking into account the reviews from Parties, other Governments, experts, and non-governmental organizations, based on the second version of the report. The secon ...
Detailed Final Report - Rufford Small Grants
... (abundance and spatial extent) of the invasion. In the case of Lantana camara, quantifying invasion has been difficult and very little is known about its spatial range and its abundance in invaded habitats. Lantana is extremely varied in its growth form ranging from individual widely-spaced clumps, ...
... (abundance and spatial extent) of the invasion. In the case of Lantana camara, quantifying invasion has been difficult and very little is known about its spatial range and its abundance in invaded habitats. Lantana is extremely varied in its growth form ranging from individual widely-spaced clumps, ...
The Carbon Cycle and Climate Change
... Two important points should be noted about these chemical reactions. First, photosynthesis moves carbon from the atmosphere into the biosphere and respiration moves carbon from the biosphere back into the atmosphere. Second, the two processes are in equilibrium in living organisms; for every molecul ...
... Two important points should be noted about these chemical reactions. First, photosynthesis moves carbon from the atmosphere into the biosphere and respiration moves carbon from the biosphere back into the atmosphere. Second, the two processes are in equilibrium in living organisms; for every molecul ...
Best Management Practices
... affect mortality or the number of root sprouts. If timed right, most species can be annually cut or pulled to almost eliminate reproduction by seed. The factsheets should also help you avoid worsening the problem. For example, cutting some perennial species once a year, or even three times a year, w ...
... affect mortality or the number of root sprouts. If timed right, most species can be annually cut or pulled to almost eliminate reproduction by seed. The factsheets should also help you avoid worsening the problem. For example, cutting some perennial species once a year, or even three times a year, w ...
the effects of climate stability on northern temperate forests
... Life's display of diversity and evolutionary histories is intertwined with climate on Earth. In this Ph.D. study, I explored the influence of both the past and ongoing climate change on forest trees north of the tropics using large geospatial data sets. Phylogenetic structure of species assemblage a ...
... Life's display of diversity and evolutionary histories is intertwined with climate on Earth. In this Ph.D. study, I explored the influence of both the past and ongoing climate change on forest trees north of the tropics using large geospatial data sets. Phylogenetic structure of species assemblage a ...
Effects of Siltation, Temperature and Salinity on Mangrove Plants
... the upper soil layer. This process is known to be typical for mangrove ecosystems where it assures an essential import of nutrients. Mangroves function physically as sediment sinks where suspended solids are filtered out of the water resulting in a positive effect on the associated coral reefs and s ...
... the upper soil layer. This process is known to be typical for mangrove ecosystems where it assures an essential import of nutrients. Mangroves function physically as sediment sinks where suspended solids are filtered out of the water resulting in a positive effect on the associated coral reefs and s ...
Below-ground resources limit seedling growth in forest understories
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...
... varying widely in shade tolerance to an increase in soil resources in shaded forest understories in northern Wisconsin, USA. In a 4-year experiment, trenching treatment was used to increase soil resource supply to 1-year old seedlings planted across a range of low light microenvironments. Specifical ...
Collateral transgression of planetary boundaries due to climate
... In the context of the SOS framework, tCDR via largescale biomass plantations could extract carbon from the atmosphere via the natural process of photosynthesis (Shepherd et al., 2009). If the carbon accumulated in biomass is harvested and stored in deep reservoirs or used for bioenergy production in ...
... In the context of the SOS framework, tCDR via largescale biomass plantations could extract carbon from the atmosphere via the natural process of photosynthesis (Shepherd et al., 2009). If the carbon accumulated in biomass is harvested and stored in deep reservoirs or used for bioenergy production in ...
Response of macroarthropod assemblages to the loss
... hardwood stands dominate in areas that were cleared for agriculture (Foster 1992). The Harvard Forest Hemlock Removal Experiment (HF-HeRE) includes two canopy-level manipulations that mimic structural changes caused either by the adelgid or by logging, each of which was applied to replicated 90 3 90 ...
... hardwood stands dominate in areas that were cleared for agriculture (Foster 1992). The Harvard Forest Hemlock Removal Experiment (HF-HeRE) includes two canopy-level manipulations that mimic structural changes caused either by the adelgid or by logging, each of which was applied to replicated 90 3 90 ...
- Wiley Online Library
... of Gabon, northern Republic of Congo, and southeastern Cameroon, where human population density is low. These populations exist mostly in well-guarded protected areas that are surrounded by logging concessions, where there is at least some anti-poaching effort (Maisels et al. 2013). Smaller populati ...
... of Gabon, northern Republic of Congo, and southeastern Cameroon, where human population density is low. These populations exist mostly in well-guarded protected areas that are surrounded by logging concessions, where there is at least some anti-poaching effort (Maisels et al. 2013). Smaller populati ...
AVIAN HABITAT FRAGMENTATION
... depends on them. Ecosystem fragmentation is inevitable in human growth and development, but with planning and analysis, there can be pro-active ways to manage the fragmentation. Birds are one of the most identifiable wildlife species that can indicate disturbances in the natural ecosystem (McWilliam ...
... depends on them. Ecosystem fragmentation is inevitable in human growth and development, but with planning and analysis, there can be pro-active ways to manage the fragmentation. Birds are one of the most identifiable wildlife species that can indicate disturbances in the natural ecosystem (McWilliam ...
The assembly of tropical tree communities the advances and
... species. Quantifying this similarity is a daunting and potentially impossible task in species-rich assemblages. During the past decade tropical tree ecologists have increasingly utilized phylogenetic trees and functional traits to estimate the ecological similarity of species in order to test mechan ...
... species. Quantifying this similarity is a daunting and potentially impossible task in species-rich assemblages. During the past decade tropical tree ecologists have increasingly utilized phylogenetic trees and functional traits to estimate the ecological similarity of species in order to test mechan ...
Introduced tree species in European forests: opportunities and
... Black locust: from global ecology to local management – a case study from the Czech Republic Michaela Vítková, Jan Pergl and Jiří Sádlo ...
... Black locust: from global ecology to local management – a case study from the Czech Republic Michaela Vítková, Jan Pergl and Jiří Sádlo ...
univERsity oF copEnhAGEn
... timber trees by direct seeding is often carried out in plantations several years before logging. Although regeneration can be damaged during logging, the plants will have a ›head start‹ and competitive advantage over weeds once the canopy trees are removed. 4. Site preparation for direct sowing Site ...
... timber trees by direct seeding is often carried out in plantations several years before logging. Although regeneration can be damaged during logging, the plants will have a ›head start‹ and competitive advantage over weeds once the canopy trees are removed. 4. Site preparation for direct sowing Site ...
Vulnerability and Feedbacks of Permafrost to Climate Change
... The thermal inertia of ice-rich ground; rapidly evolving topography and drainage networks that prevent water impoundment; and development of thick organic soils, mosses, and a vegetation canopy helped to protect permafrost from thawing. Much of discontinuous and sporadic permafrost that is currently ...
... The thermal inertia of ice-rich ground; rapidly evolving topography and drainage networks that prevent water impoundment; and development of thick organic soils, mosses, and a vegetation canopy helped to protect permafrost from thawing. Much of discontinuous and sporadic permafrost that is currently ...
Lakes and reservoirs as regulators of carbon cycling and climate
... distribution, that the coefficients of this equation are constant among regions, and that dry and moist regions of the Earth differ only in that drier regions have fewer lakes than moist regions. Furthermore, lakes and impoundments cover substantially more area (.3% of the continents) than hitherto ...
... distribution, that the coefficients of this equation are constant among regions, and that dry and moist regions of the Earth differ only in that drier regions have fewer lakes than moist regions. Furthermore, lakes and impoundments cover substantially more area (.3% of the continents) than hitherto ...
Preliminary Study of the Effects of Headwater Riparian Reserves with
... protected by one of four riparian buffer widths. Per site, the harvest usually occurred within a 2-year time window, and these were staggered among sites, 1997 to 2000. Thinning reduced overstory tree density to about 200 tph at all but one older site; Perkins Creek was thinned to 100 to 150 tph. At ...
... protected by one of four riparian buffer widths. Per site, the harvest usually occurred within a 2-year time window, and these were staggered among sites, 1997 to 2000. Thinning reduced overstory tree density to about 200 tph at all but one older site; Perkins Creek was thinned to 100 to 150 tph. At ...
Driving mechanisms of overstorey–understorey
... Bagchi, 2007) and the provision of ecosystem services (Morin et al., 2011; Zhang et al., 2012) now and in the future. Forests have been underrepresented in the BEF-research area (Nadrowski et al., 2010; Verheyen et al., 2015), but recent studies confirm that the beneficial effects of diversity on func ...
... Bagchi, 2007) and the provision of ecosystem services (Morin et al., 2011; Zhang et al., 2012) now and in the future. Forests have been underrepresented in the BEF-research area (Nadrowski et al., 2010; Verheyen et al., 2015), but recent studies confirm that the beneficial effects of diversity on func ...
Status Report - The Forest Research Partnership
... understorey flora (% cover by species), moss, soil, rock, standing water, woody debris, and leaf litter were quantified. Each regeneration plot was divided into those plants growing below 50 cm and those above 50 cm. Shrub and tree seedlings measurements were divided into 3 layers; seedling layer (0 ...
... understorey flora (% cover by species), moss, soil, rock, standing water, woody debris, and leaf litter were quantified. Each regeneration plot was divided into those plants growing below 50 cm and those above 50 cm. Shrub and tree seedlings measurements were divided into 3 layers; seedling layer (0 ...
File - Mr. Greening`s Science
... 45. A climax community is able to exist in a certain geographic region for a long period of time ...
... 45. A climax community is able to exist in a certain geographic region for a long period of time ...
Mutualism: A Factor in Ecological Succession Through its Influence
... Slatyer 1977). The winner(s) of the cmpetition during a particular phase of succession becomes the dominant species. at least for a while. but the success of a particular species or community eventually becomes its downfall because the species itself changes the resources that are available. thus pa ...
... Slatyer 1977). The winner(s) of the cmpetition during a particular phase of succession becomes the dominant species. at least for a while. but the success of a particular species or community eventually becomes its downfall because the species itself changes the resources that are available. thus pa ...
(2012) Blue Carbon Policy Framework 2.0
... Many natural environments contain large stores of carbon laid down by vegetation and other natural processes over centuries. The storage of carbon is the consequence of the capacity of those ecosystems to act as a net carbon sink over very long periods of time. If these ecosystems are degraded or da ...
... Many natural environments contain large stores of carbon laid down by vegetation and other natural processes over centuries. The storage of carbon is the consequence of the capacity of those ecosystems to act as a net carbon sink over very long periods of time. If these ecosystems are degraded or da ...
Greater glider - Brisbane City Council
... Database records from Brisbane show this species is most commonly present in the bushland of the western suburbs of Brookfield, Kenmore Hills, Mt Coot-tha and The Gap, the Boondall Wetlands, the northern suburbs of Bridgeman Downs and Chermside, Toohey Forest and surrounding suburbs, Karawatha, the ...
... Database records from Brisbane show this species is most commonly present in the bushland of the western suburbs of Brookfield, Kenmore Hills, Mt Coot-tha and The Gap, the Boondall Wetlands, the northern suburbs of Bridgeman Downs and Chermside, Toohey Forest and surrounding suburbs, Karawatha, the ...
Reforestation
Reforestation is the natural or intentional restocking of existing forests and woodlands that have been depleted, usually through deforestation.Reforestation can be used to improve the quality of human life by soaking up pollution and dust from the air, rebuild natural habitats and ecosystems, mitigate global warming since forests facilitate biosequestration of atmospheric carbon dioxide, and harvest for resources, particularly timber.The term reforestation is similar to afforestation, the process of restoring and recreating areas of woodlands or forests that may have existed long ago but were deforested or otherwise removed at some point in the past. Sometimes the term re-afforestation is used to distinguish between the original forest cover and the later re-growth of forest to an area. Special tools, e.g. tree planting bar, are used to make planting of trees easier and faster.