Programme - Arid Zone Ecology Forum
... Fauna resident within vegetation clumps are likely to exert stronger feedbacks on their hosts than itinerant species. We studied the relationship between camelthorn trees (Acacia erioloba) and the spectacular colonial nests of sociable weavers (Philetairus socius) in Tswalu Kalahari reserve in the ...
... Fauna resident within vegetation clumps are likely to exert stronger feedbacks on their hosts than itinerant species. We studied the relationship between camelthorn trees (Acacia erioloba) and the spectacular colonial nests of sociable weavers (Philetairus socius) in Tswalu Kalahari reserve in the ...
Wildlife Habitat Management for Arkansas Landowners
... field soil conditions. Studies have shown that conservation tillage fields can have yields that equal or exceed conventional tillage fields. In addition, production costs are less for conservation tillage systems. Residues from conservation tillage provide both food and cover for wildlife (Figure 3) ...
... field soil conditions. Studies have shown that conservation tillage fields can have yields that equal or exceed conventional tillage fields. In addition, production costs are less for conservation tillage systems. Residues from conservation tillage provide both food and cover for wildlife (Figure 3) ...
Planted Forests and Biodiversity
... emphasized in the past 10 years at political levels through many international conventions and agreements promoting sustainable forest management (SFM) including the Montreal and Pan-European Processes, and at commercial levels as part of forest certification schemes (e.g., Forest Stewardship Counci ...
... emphasized in the past 10 years at political levels through many international conventions and agreements promoting sustainable forest management (SFM) including the Montreal and Pan-European Processes, and at commercial levels as part of forest certification schemes (e.g., Forest Stewardship Counci ...
Copyright © 2011 by the author(s). Published here under license... Silvergieter, M. P., and D. B. Lank. 2011. Marbled murrelets...
... rubra; Bradley and Cooke 2001) was also omitted, because it is the only deciduous nest known for this species, and we consider it an outlier with respect to nesting habitat in this region. We also excluded 10 sites where either habitat plot data were not available or the nest tree was not confirmed ...
... rubra; Bradley and Cooke 2001) was also omitted, because it is the only deciduous nest known for this species, and we consider it an outlier with respect to nesting habitat in this region. We also excluded 10 sites where either habitat plot data were not available or the nest tree was not confirmed ...
univERsity oF copEnhAGEn
... Essentially a strip cut is a long and small clear cut facilitating natural regeneration. Under this system strips with a width of 1 to 1.5 times the dominant tree height are cut on the Southeast side of the stands. In these strips trees beech will regenerate naturally and depending on the width of t ...
... Essentially a strip cut is a long and small clear cut facilitating natural regeneration. Under this system strips with a width of 1 to 1.5 times the dominant tree height are cut on the Southeast side of the stands. In these strips trees beech will regenerate naturally and depending on the width of t ...
eucalyptus porosa grassy woodlands
... Personal experience of the author demonstrates that many people still don’t even recognise a grassy woodland when they are standing in one, despite concerted efforts of many well known ecologists in South Australia. Eucalyptus porosa (mallee box) grassy woodlands are a Priority Five vegetation commu ...
... Personal experience of the author demonstrates that many people still don’t even recognise a grassy woodland when they are standing in one, despite concerted efforts of many well known ecologists in South Australia. Eucalyptus porosa (mallee box) grassy woodlands are a Priority Five vegetation commu ...
biodiversity in drylands - Food and Agriculture Organization of the
... 3.2- Status of Dryland Biodiversity Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerophyllous vegetation of the Mediterranean Basin, drylands of Southern Australia and California, Chile, Cape Floral Kingdom of South Africa, and shrubl ...
... 3.2- Status of Dryland Biodiversity Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerophyllous vegetation of the Mediterranean Basin, drylands of Southern Australia and California, Chile, Cape Floral Kingdom of South Africa, and shrubl ...
Agroforestry_477_577_RNG_NR_FS_Syllabus revised 5-10
... ● To understand the various agroforestry concepts, systems and technologies used worldwide ● To understand the interactions between agricultural corps, livestock and trees for light, soil nutrients and moisture and minimize competitions for these resources ● To understand the interplay of biological ...
... ● To understand the various agroforestry concepts, systems and technologies used worldwide ● To understand the interactions between agricultural corps, livestock and trees for light, soil nutrients and moisture and minimize competitions for these resources ● To understand the interplay of biological ...
Rodent abundance, stone bund density and its effects on crop
... African armyworm (Spodoptera exempta) and regular pests, such as the Russian wheat aphid (Diuraphis noxia), occur frequently and result in significant yield losses (Abate, 2006; Belay and Stauffer, 2007). The most common vertebrate pests are the red-billed quelea (Quelea quelea) and several species ...
... African armyworm (Spodoptera exempta) and regular pests, such as the Russian wheat aphid (Diuraphis noxia), occur frequently and result in significant yield losses (Abate, 2006; Belay and Stauffer, 2007). The most common vertebrate pests are the red-billed quelea (Quelea quelea) and several species ...
Human disturbance on Polylepis mountain forests in Peruvian
... impede the dispersal of species (Ricketts 2001, Gustafson & Gardner 1996, Brown 1971). Because of isolation and habitat variety mountains harbor many endemic species found nowhere else on earth (Chaverri-Polini 1998). Mountain forests offer a great variety of ecosystem services and products and they ...
... impede the dispersal of species (Ricketts 2001, Gustafson & Gardner 1996, Brown 1971). Because of isolation and habitat variety mountains harbor many endemic species found nowhere else on earth (Chaverri-Polini 1998). Mountain forests offer a great variety of ecosystem services and products and they ...
Climate Change and its Effect on Conservation and Use of Plant Genetic Resources for Food and Agriculture and Associated Biodiversity for Food Security
... globally, some areas will receive less annual rainfall, while others may receive much more. The timing of rains and cropgrowing periods will also change. The frequency and duration of extreme weather events are also predicted to increase, although uncertainty exists about the expected degree of chan ...
... globally, some areas will receive less annual rainfall, while others may receive much more. The timing of rains and cropgrowing periods will also change. The frequency and duration of extreme weather events are also predicted to increase, although uncertainty exists about the expected degree of chan ...
Discussion
... requirements of the biotic components and stimulate the biogeochemical processes that cycle the abiotic components. Mixed grass prairie communities require biologically effective partial defoliation by annually managed grazing animals in order to persist as healthy and productive ecosystems. Thus, p ...
... requirements of the biotic components and stimulate the biogeochemical processes that cycle the abiotic components. Mixed grass prairie communities require biologically effective partial defoliation by annually managed grazing animals in order to persist as healthy and productive ecosystems. Thus, p ...
Opening Statement - Kingston Biodiversity Network
... Biodiversity as defined by the Convention of Biological Diversity is “the variability among living organisms from all sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ...
... Biodiversity as defined by the Convention of Biological Diversity is “the variability among living organisms from all sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ...
Effects of density and ontogeny on size and growth
... and resource pre-emption by L. laricina, whereas lower-density stands favoured gradual accumulation of biomass and eventual dominance by P. strobus. In the absence of strong neighbour competition, ontogenetic trends in growth had greater influence on growth patterns. 4. Species interactions affected ...
... and resource pre-emption by L. laricina, whereas lower-density stands favoured gradual accumulation of biomass and eventual dominance by P. strobus. In the absence of strong neighbour competition, ontogenetic trends in growth had greater influence on growth patterns. 4. Species interactions affected ...
A Century of Melaleuca Invasion in South Florida
... First brought to Florida from Australia around 1900, melaleuca (MEL-ah-LUKE-ah) found widespread use as an ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. However, as is often the case when species are introduced beyo ...
... First brought to Florida from Australia around 1900, melaleuca (MEL-ah-LUKE-ah) found widespread use as an ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. However, as is often the case when species are introduced beyo ...
Competitive interactions across a soil fertility gradient in a
... Study sites were located near Smithers (54°35′N, 126°55′W), northwestern British Columbia, in the sub-boreal spruce (Moist Cold subzone Babine Variant) part of the Canadian Boreal Forest Region (Banner et al. 1993). The continental climate of this area has cold, snowy winters with temperatures below ...
... Study sites were located near Smithers (54°35′N, 126°55′W), northwestern British Columbia, in the sub-boreal spruce (Moist Cold subzone Babine Variant) part of the Canadian Boreal Forest Region (Banner et al. 1993). The continental climate of this area has cold, snowy winters with temperatures below ...
weeping myall woodland - Brigalow Nandewar Biolinks
... prevent seedlings from germinating. Disturbance will favour the establishment of weeds. Climate change – is likely to have an effect on distribution and composition of Weeping Myall Woodland and increase the impact of other threats, particularly weeds. ...
... prevent seedlings from germinating. Disturbance will favour the establishment of weeds. Climate change – is likely to have an effect on distribution and composition of Weeping Myall Woodland and increase the impact of other threats, particularly weeds. ...
Rethinking Swidden Cultivation in Myanmar
... The policy challenge is now how to support swidden cultivators to adapt their livelihoods to the changing conditions: 1) legitimate swidden cultivation practices 2) provide secure tenure, through reinforcing customary authorities, revising national land legislation, handing over community forests, ...
... The policy challenge is now how to support swidden cultivators to adapt their livelihoods to the changing conditions: 1) legitimate swidden cultivation practices 2) provide secure tenure, through reinforcing customary authorities, revising national land legislation, handing over community forests, ...
Rationale for the increased use of conifers as functional green
... and deciduous conifers as specific infrastructure components that accomplish unique goals and provide benefits throughout the entire year, rather than only during the growing (i.e. ...
... and deciduous conifers as specific infrastructure components that accomplish unique goals and provide benefits throughout the entire year, rather than only during the growing (i.e. ...
4.0 weed control - University of Hawaii at Manoa
... colonization need to be planted with native species or a temporary cover species in order to exclude more aggressive weeds and eventually achieve forest canopy closure. Regular site monitoring and follow-up management of restoration sites and adjacent areas is necessary for long-term success (Porteo ...
... colonization need to be planted with native species or a temporary cover species in order to exclude more aggressive weeds and eventually achieve forest canopy closure. Regular site monitoring and follow-up management of restoration sites and adjacent areas is necessary for long-term success (Porteo ...
Mainstreaming Biodiversity in Agricultural Development
... the missing markets for services made possible by biodiversity, thereby reducing damage and leading farmers to include these costs in their decisions. In many countries, the pressure to expand agriculture is so great, at least in the short term, that adopting appropriate policies and addressing mark ...
... the missing markets for services made possible by biodiversity, thereby reducing damage and leading farmers to include these costs in their decisions. In many countries, the pressure to expand agriculture is so great, at least in the short term, that adopting appropriate policies and addressing mark ...
Conservation Outside Protected Areas
... priorities (Koh et al. 2010). A different approach is to use the legal system to halt government-approved activities on public lands if these activities threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use ...
... priorities (Koh et al. 2010). A different approach is to use the legal system to halt government-approved activities on public lands if these activities threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use ...
Glencoe Biology
... States can be considered renewable – Old-growth forests in Alaska and the Pacific Northwest are considered nonrenewable • Takes a long time to grow back • Contains a rich variety of species • Deforestation erosion, grazing or plowing permanent changes to local soils and microclimates that prevent ...
... States can be considered renewable – Old-growth forests in Alaska and the Pacific Northwest are considered nonrenewable • Takes a long time to grow back • Contains a rich variety of species • Deforestation erosion, grazing or plowing permanent changes to local soils and microclimates that prevent ...
Factors affecting Grey-headed Flying
... redistribution of the remaining habitat into small fragments within a built environment (Forman & Godron 1986; Wilcove et al. 1986). However, urbanization also results in the creation of new habitats, such as parks and gardens, in which both native and exotic flora may be cultivated (Gilbert 1989). ...
... redistribution of the remaining habitat into small fragments within a built environment (Forman & Godron 1986; Wilcove et al. 1986). However, urbanization also results in the creation of new habitats, such as parks and gardens, in which both native and exotic flora may be cultivated (Gilbert 1989). ...