THE EFFECTS OF FIRE AND GRAZING MANAGEMENT ON
... In the high rainfall, sourveld grasslands of the Eastern Cape, the eradication of underutilized stands of Cymbopogon validus has been directed through burning and intensive grazing on the farm Glen Gregor, outside Bedford. At this study site, species composition of standing vegetation, basal cover, ...
... In the high rainfall, sourveld grasslands of the Eastern Cape, the eradication of underutilized stands of Cymbopogon validus has been directed through burning and intensive grazing on the farm Glen Gregor, outside Bedford. At this study site, species composition of standing vegetation, basal cover, ...
THE AFTERLIFE OF A TREE
... contain tissues saturated by lignin or sclerenchyma . They often reach gigantic sizes (in height and diameter) and may live up to thousands of years. The widest trees in Polish forests are poplars Populus species with DBHs up to 4 m , oaks Quercus species (more than 3 m), elms Ulmus species (2.9 m ...
... contain tissues saturated by lignin or sclerenchyma . They often reach gigantic sizes (in height and diameter) and may live up to thousands of years. The widest trees in Polish forests are poplars Populus species with DBHs up to 4 m , oaks Quercus species (more than 3 m), elms Ulmus species (2.9 m ...
stewardship of longleaf pine forests
... he early settlers of the Southeast encountered a virgin forest of longleaf pines that occurred on up to 90 million acres of land on the coastal plain and adjacent areas of the piedmont and mountains. The natural range of longleaf extended from southeastern Virginia to central Florida, westward to ea ...
... he early settlers of the Southeast encountered a virgin forest of longleaf pines that occurred on up to 90 million acres of land on the coastal plain and adjacent areas of the piedmont and mountains. The natural range of longleaf extended from southeastern Virginia to central Florida, westward to ea ...
ES8B
... of leaves, as well as a cultured fungus isolated from this same habitat. Amplicon sequencing of DNA extracted from feces of cultured snails confirms that this cultured fungus is abundant in the wild, but that it dominates the diet of the ex situ snail diet (comprising ~38% of sequences). The diet of ...
... of leaves, as well as a cultured fungus isolated from this same habitat. Amplicon sequencing of DNA extracted from feces of cultured snails confirms that this cultured fungus is abundant in the wild, but that it dominates the diet of the ex situ snail diet (comprising ~38% of sequences). The diet of ...
Cascadia Wildlands
... Another problem is the claim that existing LSRs provide for old growth species, therefore mature forests in the matrix can be clearcut. However, almost half of the near-by LSRs are old clearcuts -- young tree plantations. There are thousands of acres of these plantations in the adjoining Late Succes ...
... Another problem is the claim that existing LSRs provide for old growth species, therefore mature forests in the matrix can be clearcut. However, almost half of the near-by LSRs are old clearcuts -- young tree plantations. There are thousands of acres of these plantations in the adjoining Late Succes ...
- University of Essex Research Repository
... Consequently, chemically mediated interactions can have a strong effect on community structure and population dynamics within an ecosystem (Hay, 2009). In the marine environment chemicals released into the surroundings by small unicellular phytoplankton can have a range of consequences for their sus ...
... Consequently, chemically mediated interactions can have a strong effect on community structure and population dynamics within an ecosystem (Hay, 2009). In the marine environment chemicals released into the surroundings by small unicellular phytoplankton can have a range of consequences for their sus ...
Newton`s Laws of Motion - Augusta Independent Schools
... are called renewable resources. Resources that are found on Earth in limited amounts or those that are replaced by natural processes over extremely long periods of time are called nonrenewable resources. ...
... are called renewable resources. Resources that are found on Earth in limited amounts or those that are replaced by natural processes over extremely long periods of time are called nonrenewable resources. ...
Strategic grazing management - Society For Range Management
... promoting structural diversity for wildlife. When Grady took over the operation in 1995, plant communities on the uplands contained almost exclusively short grasses. Because of poor distribution and extended grazing periods with no recovery, many areas were severely degraded, and it was difficult to ...
... promoting structural diversity for wildlife. When Grady took over the operation in 1995, plant communities on the uplands contained almost exclusively short grasses. Because of poor distribution and extended grazing periods with no recovery, many areas were severely degraded, and it was difficult to ...
Wildlife Species Descriptions - University of Arkansas Division of
... in various wetlands that have permanent water with a variety of shrubs and trees adjacent to the water. Beavers build dams from tree branches, shrubs, and mud to form ponds that stabilize water levels, slow water movement, and provide shelter beneath the ice in winter. Beavers also build lodges from ...
... in various wetlands that have permanent water with a variety of shrubs and trees adjacent to the water. Beavers build dams from tree branches, shrubs, and mud to form ponds that stabilize water levels, slow water movement, and provide shelter beneath the ice in winter. Beavers also build lodges from ...
limiting factors of five rare plant species in mesic forests, hawai`i
... Table 6. Size class distribution, mortality, and growth into subsequent size classes for Melicope zahlbruckneri trees in Kīpuka Puaulu between 1993 and 2008. ........................................ 54 Table 7. Estimated cover-abundance of all woody species in three height layers at selected Melicop ...
... Table 6. Size class distribution, mortality, and growth into subsequent size classes for Melicope zahlbruckneri trees in Kīpuka Puaulu between 1993 and 2008. ........................................ 54 Table 7. Estimated cover-abundance of all woody species in three height layers at selected Melicop ...
pdf - Vlaams Instituut voor de Zee
... Evaluations of management actions are as a result dependent of the used reference framework and we need to distinguish between effect on small scales of the site and the entire dune ecosystem. The choice of different reference situations is to our opinion the reason why results of local actions are ...
... Evaluations of management actions are as a result dependent of the used reference framework and we need to distinguish between effect on small scales of the site and the entire dune ecosystem. The choice of different reference situations is to our opinion the reason why results of local actions are ...
Frass drop for monitoring relative abundance of large arboreal
... contents. Fresh pellets are covered in a thin mucus cuticle (skin) that does not conceal the pellets’ contents, but this disappears with weathering. Pellets become fragile as they weather. Similar sized and shaped pellets are produced by at least one other unidentified arboreal invertebrate that fee ...
... contents. Fresh pellets are covered in a thin mucus cuticle (skin) that does not conceal the pellets’ contents, but this disappears with weathering. Pellets become fragile as they weather. Similar sized and shaped pellets are produced by at least one other unidentified arboreal invertebrate that fee ...
A synthetic review of feedbacks and drivers of shrub encroachment
... continents, several hundred million hectares have been affected by shrub encroachment (e.g. Eldridge et al., 2011) with important ecohydrological implications (e.g. Huxman et al., 2005). In many cases, the shrub species are native to these landscapes and were already present at lower density or in r ...
... continents, several hundred million hectares have been affected by shrub encroachment (e.g. Eldridge et al., 2011) with important ecohydrological implications (e.g. Huxman et al., 2005). In many cases, the shrub species are native to these landscapes and were already present at lower density or in r ...
Agrobiodiversity: Its Value, Measurement, and Conservation in the
... unique accessions due to duplication) in over 1300 germplasm collections (FAO, 1998). Further collection is still needed for minor species and to fill gaps in a few major species (e.g. maize) (FAO, 1998). The Convention on Biological Diversity (UNCED, 1992) and the International Treaty on Plant Gene ...
... unique accessions due to duplication) in over 1300 germplasm collections (FAO, 1998). Further collection is still needed for minor species and to fill gaps in a few major species (e.g. maize) (FAO, 1998). The Convention on Biological Diversity (UNCED, 1992) and the International Treaty on Plant Gene ...
Competition Among Insects, Birds and Mammals for Conifer Steeds
... Local weather patterns in the mountainous western U. S. appear to be-governed, to a large extent, by local or regional topographic features. This may be especially true in the lower, drier habitats where most western pines are found. There is little doubt, however, that at least some species of pine ...
... Local weather patterns in the mountainous western U. S. appear to be-governed, to a large extent, by local or regional topographic features. This may be especially true in the lower, drier habitats where most western pines are found. There is little doubt, however, that at least some species of pine ...
Biodiversity in New Zealand plantation forests: Policy trends
... plantation forests in New Zealand. The New Zealand Biodiversity Strategy and other recent policy documents advocate 'sympathetic management' to conserve biodiversity on private land. As a component of sustainable forest management, biodiversity is also included in international agreements (e.g., Mon ...
... plantation forests in New Zealand. The New Zealand Biodiversity Strategy and other recent policy documents advocate 'sympathetic management' to conserve biodiversity on private land. As a component of sustainable forest management, biodiversity is also included in international agreements (e.g., Mon ...
Porcupine Ecology and Damage Management Technigues for Rural
... a pebble-like texture from structures called tuberosities, which are used to increase friction against the tree trunk. Footpads are used solely for climbing small tree trunks or branches that are too narrow in diameter for claws. Footpad size increases with body size, and males generally have larger ...
... a pebble-like texture from structures called tuberosities, which are used to increase friction against the tree trunk. Footpads are used solely for climbing small tree trunks or branches that are too narrow in diameter for claws. Footpad size increases with body size, and males generally have larger ...
The restoration and re-creation of species
... existing semi-natural grasslands have generally been slow. On former agriculturally improved swards, nutrient depletion has accelerated this process, especially where ‘‘gaps’’ for establishment have been created. Similarly, on ex-arable soils ‘‘nutrient stripping’’ and sowing with diverse seed mixtu ...
... existing semi-natural grasslands have generally been slow. On former agriculturally improved swards, nutrient depletion has accelerated this process, especially where ‘‘gaps’’ for establishment have been created. Similarly, on ex-arable soils ‘‘nutrient stripping’’ and sowing with diverse seed mixtu ...
Sciences Po Rennes Model United Nations General Assembly
... a further third depleted. 23 According to conservation groups, demand for ivory is so high that in the Democratic Republic of the Congo, “poachers are wiping out tens of thousands of elephants a year, more than at any time in the previous two decades.”24 While habitat loss, exploitation and pollutio ...
... a further third depleted. 23 According to conservation groups, demand for ivory is so high that in the Democratic Republic of the Congo, “poachers are wiping out tens of thousands of elephants a year, more than at any time in the previous two decades.”24 While habitat loss, exploitation and pollutio ...
These_4_niveau 2 et 3 - Chaire CRSNG/Hydro
... questions surrounding BEF in tree systems, particularly regarding niche complementarity and plant functional traits. In particular, the objectives were to improve our understanding of fine root trait variation within and across tree species, develop an experimental design testing specifically for th ...
... questions surrounding BEF in tree systems, particularly regarding niche complementarity and plant functional traits. In particular, the objectives were to improve our understanding of fine root trait variation within and across tree species, develop an experimental design testing specifically for th ...
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 ...
guidelines for urban forest restoration
... release oxygen, store carbon in vegetation and soils, and support biodiversity, as well as allow city residents respite from the frenzy of urban living. Degraded forests exhibit diminished capacity for providing these functions. Over the past hundred years, wetlands have been turned into airports, n ...
... release oxygen, store carbon in vegetation and soils, and support biodiversity, as well as allow city residents respite from the frenzy of urban living. Degraded forests exhibit diminished capacity for providing these functions. Over the past hundred years, wetlands have been turned into airports, n ...
Managing stock in wetland grazing
... the feed usually kept for longer. However, in the introduced pastures, smaller paddocks (40–60 ha) were preferred as the feed went ‘rank’ much faster. Stock movements were triggered by vegetation condition only, and length of grazing interval was not considered to be a factor. In the Macquarie Marsh ...
... the feed usually kept for longer. However, in the introduced pastures, smaller paddocks (40–60 ha) were preferred as the feed went ‘rank’ much faster. Stock movements were triggered by vegetation condition only, and length of grazing interval was not considered to be a factor. In the Macquarie Marsh ...
USE OF SELECTED FODDER SHRUBS IN THE RECLAMATION OF DEGRADED ARID RANGELANDS.
... A further trial addressed the intra-species variation in the palatability of A. nummularia. Established shrubs of the F1 “elite” generation were browsed by sheep. The most palatable shrubs were identified and seed from these shrubs will be used to produce seedlings that will go into further selectio ...
... A further trial addressed the intra-species variation in the palatability of A. nummularia. Established shrubs of the F1 “elite” generation were browsed by sheep. The most palatable shrubs were identified and seed from these shrubs will be used to produce seedlings that will go into further selectio ...
` ASSESSMENT OF ECOLOGICAL FACTORS LIMITING TROPICAL
... Recent decades have seen a serious biodiversity decline due to habitat loss and alteration especially of tropical forests leading to a profound species-extinction crisis (Fleywood, 1995; Pimm et al., 1995; Whitmore, 1997). Africa suffered a net loss of about 4.0 million hectares per year between 200 ...
... Recent decades have seen a serious biodiversity decline due to habitat loss and alteration especially of tropical forests leading to a profound species-extinction crisis (Fleywood, 1995; Pimm et al., 1995; Whitmore, 1997). Africa suffered a net loss of about 4.0 million hectares per year between 200 ...