Bierregard et al. Bi..
... industrial forestry, and waves of colonization have led to large-scale tropical deforestation with clearings on the scale of 102-105 ha. Forest clearing increased exponentially during the 1970s and 1980s in Brazil (Fearnside 1987) and continues at alarming rates around the world (Myers 1991). The sp ...
... industrial forestry, and waves of colonization have led to large-scale tropical deforestation with clearings on the scale of 102-105 ha. Forest clearing increased exponentially during the 1970s and 1980s in Brazil (Fearnside 1987) and continues at alarming rates around the world (Myers 1991). The sp ...
Succession Among the Ocean Tides
... abandoned pasture (Figure 9.4) or one that grows after a hurricane, flood, or fire is an example of secondary succession. One of the best documented examples of natural disturbance is the role of fire in the northern woods of North America. The Boundary Waters Canoe area is an example of nature rel ...
... abandoned pasture (Figure 9.4) or one that grows after a hurricane, flood, or fire is an example of secondary succession. One of the best documented examples of natural disturbance is the role of fire in the northern woods of North America. The Boundary Waters Canoe area is an example of nature rel ...
wp69
... assimilation, recycling of nutrients, protection of soils, pollination of crops, maintenance of species among others should be included in the assessment of benefits. The monetary valuation of intangible benefits is a difficult process since only some of these values are reflected in market prices a ...
... assimilation, recycling of nutrients, protection of soils, pollination of crops, maintenance of species among others should be included in the assessment of benefits. The monetary valuation of intangible benefits is a difficult process since only some of these values are reflected in market prices a ...
The rich invertebrate community in tropical epiphytes: a survey of the
... Despite this knowledge, until recently most of the attention on the insects in tropical forest canopies focused on the trees themselves. Ellwood & Foster (2004), however, showed that forest epiphytes contain large numbers of insects. They studied the abundance of insects and other invertebrates in t ...
... Despite this knowledge, until recently most of the attention on the insects in tropical forest canopies focused on the trees themselves. Ellwood & Foster (2004), however, showed that forest epiphytes contain large numbers of insects. They studied the abundance of insects and other invertebrates in t ...
Distribution of ground-dwelling arthropods in tropical
... To examine the effect of habitat type on arthropod richness, abundance, and length, we conducted oneway analyses of variance. For these analyses, we pooled the data from the 4 traps within each site. To compare the relative evenness of abundance of taxa across habitat types, we used J’, calculated a ...
... To examine the effect of habitat type on arthropod richness, abundance, and length, we conducted oneway analyses of variance. For these analyses, we pooled the data from the 4 traps within each site. To compare the relative evenness of abundance of taxa across habitat types, we used J’, calculated a ...
printer-friendly sample test questions
... These plants stabilize the soil. Shrubs replace the ground over as the area matures. Next, trees replace the shrub community. Lastly, ...
... These plants stabilize the soil. Shrubs replace the ground over as the area matures. Next, trees replace the shrub community. Lastly, ...
from pest to keystone species
... mostly in this part of the area. Because stand structures are similar throughout the whole of the NP, the three exterior edges in the North-West are directly comparable with the other studied edges. On each ecotone we installed five traps. The first was placed in the gap or on the meadow, 40–70 m di ...
... mostly in this part of the area. Because stand structures are similar throughout the whole of the NP, the three exterior edges in the North-West are directly comparable with the other studied edges. On each ecotone we installed five traps. The first was placed in the gap or on the meadow, 40–70 m di ...
Pine Sawfly Report - Colorado State Forest Service
... of acres affected by this outbreak. Because most of the larvae aggregated at the base of infested trees were immature, it is likely that they will die, rather than form pupal cases in the soil and emerge later as adults. This could lead to a massive population collapse in the heaviest defoliated are ...
... of acres affected by this outbreak. Because most of the larvae aggregated at the base of infested trees were immature, it is likely that they will die, rather than form pupal cases in the soil and emerge later as adults. This could lead to a massive population collapse in the heaviest defoliated are ...
canopy tours celebrates 10 years in the treetops
... mountain ranges at the world - estimated to be 2,500 million years old. The Magaliesberg Mountains are home to a wide variety of plant, animal and birdlife – watch out for the shy klipspringer jumping from rock to rock below you or look up to spot an endangered black eagle circling above. The Magoeb ...
... mountain ranges at the world - estimated to be 2,500 million years old. The Magaliesberg Mountains are home to a wide variety of plant, animal and birdlife – watch out for the shy klipspringer jumping from rock to rock below you or look up to spot an endangered black eagle circling above. The Magoeb ...
Tropical Forests
... hypothesis sometimes referred to as ‘Rapoport’s rule’. The more limited ranges of species in the tropics may allow for greater ‘species packing’ compared to temperate or boreal regions. Although this idea has received much research attention, recent analyses give only equivocal support, at best, for ...
... hypothesis sometimes referred to as ‘Rapoport’s rule’. The more limited ranges of species in the tropics may allow for greater ‘species packing’ compared to temperate or boreal regions. Although this idea has received much research attention, recent analyses give only equivocal support, at best, for ...
View PDF - Fungal diversity
... temperature, humidity and light fluctuate daily. These environmental parameters were nearly constant in twilight and dark cave areas and could have discouraged thermophilous fungal growth. Tropical microfungi, especially thermophilous fungi, represent an unexplored universe of biodiversity and these ...
... temperature, humidity and light fluctuate daily. These environmental parameters were nearly constant in twilight and dark cave areas and could have discouraged thermophilous fungal growth. Tropical microfungi, especially thermophilous fungi, represent an unexplored universe of biodiversity and these ...
from pest to keystone species
... mostly in this part of the area. Because stand structures are similar throughout the whole of the NP, the three exterior edges in the North-West are directly comparable with the other studied edges. On each ecotone we installed five traps. The first was placed in the gap or on the meadow, 40–70 m di ...
... mostly in this part of the area. Because stand structures are similar throughout the whole of the NP, the three exterior edges in the North-West are directly comparable with the other studied edges. On each ecotone we installed five traps. The first was placed in the gap or on the meadow, 40–70 m di ...
Can we really manage tropical forests without knowing the species
... more accurate field identification of species which cannot be mistaken for any other, for example species which have one or more characteristic(s) (bark, leaves, sap, etc.) that allow for easy identification. In contrast, some species that are very similar to each other were grouped under only one name ...
... more accurate field identification of species which cannot be mistaken for any other, for example species which have one or more characteristic(s) (bark, leaves, sap, etc.) that allow for easy identification. In contrast, some species that are very similar to each other were grouped under only one name ...
Preserve Songbird Species at Risk
... they forage in streams and pools, and nest amongst the roots of fallen trees, in or under fallen logs, or in hollows along stream banks. Nests are generally well-concealed by roots and hanging vegetation. Population levels in Ontario (estimated at less than 200 pairs), where surveys have been conduc ...
... they forage in streams and pools, and nest amongst the roots of fallen trees, in or under fallen logs, or in hollows along stream banks. Nests are generally well-concealed by roots and hanging vegetation. Population levels in Ontario (estimated at less than 200 pairs), where surveys have been conduc ...
Pine Sawfly - Douglas County Conservation District
... of acres affected by this outbreak. Because most of the larvae aggregated at the base of infested trees were immature, it is likely that they will die, rather than form pupal cases in the soil and emerge later as adults. This could lead to a massive population collapse in the heaviest defoliated are ...
... of acres affected by this outbreak. Because most of the larvae aggregated at the base of infested trees were immature, it is likely that they will die, rather than form pupal cases in the soil and emerge later as adults. This could lead to a massive population collapse in the heaviest defoliated are ...
Habitat Mangement Guidelines for Warblers of Ontario
... to build up energy reserves for continuing flights. The ease with which they can locate suitable habitat may determine how well they survive. Larger blocks of habitat will be easier to locate and provide more suitable shelter and food supply (Rippole and Warner 1978). Edges and Openings The edges of ...
... to build up energy reserves for continuing flights. The ease with which they can locate suitable habitat may determine how well they survive. Larger blocks of habitat will be easier to locate and provide more suitable shelter and food supply (Rippole and Warner 1978). Edges and Openings The edges of ...
NSW SCIENTIFIC COMMITTEE Notice of Final Determination The
... 6. Psyllids and Bell Miners are both native fauna that naturally occur in moderate abundance in localised areas. Psyllids are sap-sucking insects that secrete a sugary shield (lerp) which provides them with some degree of protection from small predators and parasites. Psyllids and their lerps provid ...
... 6. Psyllids and Bell Miners are both native fauna that naturally occur in moderate abundance in localised areas. Psyllids are sap-sucking insects that secrete a sugary shield (lerp) which provides them with some degree of protection from small predators and parasites. Psyllids and their lerps provid ...
Patterns of herbivory on Macaranga peltata, a pioneer species in the
... from selective felling to complete clearing interspersed with tea plantations. Generally many light-tolerant species emerge in these patches which have been logged, and are marked by lower canopy height and cover with relatively higher light penetration into the understorey17. We compared difference ...
... from selective felling to complete clearing interspersed with tea plantations. Generally many light-tolerant species emerge in these patches which have been logged, and are marked by lower canopy height and cover with relatively higher light penetration into the understorey17. We compared difference ...
Student - Amazon S3
... precipitation because they determine the vegetation in a biome. Vegetation, in turn, dictates which ________________________ will be able to live in the environment. e) The main terrestrial biomes are tropical forests, ________________________, temperate forests, grasslands and shrublands, Arctic tu ...
... precipitation because they determine the vegetation in a biome. Vegetation, in turn, dictates which ________________________ will be able to live in the environment. e) The main terrestrial biomes are tropical forests, ________________________, temperate forests, grasslands and shrublands, Arctic tu ...
RE 12.12.13 - SEQ Catchments
... Past to Present The early European explorers and surveyors of the country inland from Moreton Bay in SEQ made frequent references to vine forests with Hoop Pine in the region. They talked about hillsides that were black with pine, and tropical jungles with lofty pines that reared above the canopy. ...
... Past to Present The early European explorers and surveyors of the country inland from Moreton Bay in SEQ made frequent references to vine forests with Hoop Pine in the region. They talked about hillsides that were black with pine, and tropical jungles with lofty pines that reared above the canopy. ...
THE EFFECTS OF CLIMATE CHANGE ON LANDSCAPE
... oaks [Quercus spp.]), balsam fir, and white spruce (Picea glauca). Species with large-seeds such as beech, hickories (Carya spp.), hornbeams, and oaks do not ’migrate’ as quickly as species with lighter seeds or those whose seeds may be dispersed by animals. Finally, many species cannot tolerate exc ...
... oaks [Quercus spp.]), balsam fir, and white spruce (Picea glauca). Species with large-seeds such as beech, hickories (Carya spp.), hornbeams, and oaks do not ’migrate’ as quickly as species with lighter seeds or those whose seeds may be dispersed by animals. Finally, many species cannot tolerate exc ...
Bell Miner Associated Dieback Strategy 2004
... Eucalypt dieback, strongly associated with sap feeding insects called psyllids, is also sometimes associated with the native Bell miner or bellbird (Manoria melanophrys) and has become common in some parts of the bird’s range. Bell miners are a natural part of eucalypt ecosystems and normally have m ...
... Eucalypt dieback, strongly associated with sap feeding insects called psyllids, is also sometimes associated with the native Bell miner or bellbird (Manoria melanophrys) and has become common in some parts of the bird’s range. Bell miners are a natural part of eucalypt ecosystems and normally have m ...
Amazon rainforests green-up with sunlight in dry season
... [4] At the basin scale, a more complex regional mosaic of vegetation phenology can be expected as a result of forest structural variations, land use activities, and associated ecological conditions [Asner et al., 2004; Keller et al., 2004]. Photosynthesis has been found more tightly coupled with wat ...
... [4] At the basin scale, a more complex regional mosaic of vegetation phenology can be expected as a result of forest structural variations, land use activities, and associated ecological conditions [Asner et al., 2004; Keller et al., 2004]. Photosynthesis has been found more tightly coupled with wat ...
Les biomes : les facteurs de distribution
... because many of them have been cleared for ________________________ or for logging operations. They play an essential role in regulating the Earth’s climate ________________________ ...
... because many of them have been cleared for ________________________ or for logging operations. They play an essential role in regulating the Earth’s climate ________________________ ...
Old-growth forest
An old-growth forest (also termed primary forest, virgin forest, primeval forest, late seral forest, or in Britain, ancient woodland) is a forest that has attained great age without significant disturbance and thereby exhibits unique ecological features and might be classified as a climax community. Old-growth features include diverse tree-related structures that provide diverse wildlife habitat that increases the bio-diversity of the forested ecosystem. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris.Old-growth forests are economically valuable, and logging of these forests has been a point of contention between the logging industry and environmentalists.