The Melaleuca Menace
... ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. Why is melaleuca bad? ...
... ornamental tree and as a soil stabilizer on levees and spoil islands. It was even used in early attempts to dry up the Everglades. Why is melaleuca bad? ...
Are cabbage trees worth anything?
... abrasion and wind. Leaves are genetically adaptable narrow and fibrous in dry areas, broader and lax in windy coastal areas, thicker and more upright in cold, upland areas. Each leaf bears a bud at its junction with the stem, which can grow into a new shoot if one is needed, as after flowering or in ...
... abrasion and wind. Leaves are genetically adaptable narrow and fibrous in dry areas, broader and lax in windy coastal areas, thicker and more upright in cold, upland areas. Each leaf bears a bud at its junction with the stem, which can grow into a new shoot if one is needed, as after flowering or in ...
Beech forests of Iran
... seeds on the trees), mild winters with low snowfall (decreasing the shelf time of the seeds), cold springs and late frost (harmful to germination, shootings health and seed trees blooming) could be noted as the main potential problems. Furthermore, frequent droughts, inappropriate beds with acidic h ...
... seeds on the trees), mild winters with low snowfall (decreasing the shelf time of the seeds), cold springs and late frost (harmful to germination, shootings health and seed trees blooming) could be noted as the main potential problems. Furthermore, frequent droughts, inappropriate beds with acidic h ...
Conservation Through Management – Cut Wood as Substrate for
... initiated in 1995. The stumps were divided into two similarly composed cohorts. In order to target only insect individuals directly associated with the substrate, the stumps of one cohort were enclosed in large, fine-meshed nylon net sacks during the flight season of most species. Enclosed and open ...
... initiated in 1995. The stumps were divided into two similarly composed cohorts. In order to target only insect individuals directly associated with the substrate, the stumps of one cohort were enclosed in large, fine-meshed nylon net sacks during the flight season of most species. Enclosed and open ...
Rangeland Weed Management - KSRE Bookstore
... Forage production decreases as weed encroachment increases; at some level, weed populations become high enough to warrant control. To be justified, control of undesirable species must increase forage production or availability for livestock. Reducing unwanted plants to a tolerable level generally is ...
... Forage production decreases as weed encroachment increases; at some level, weed populations become high enough to warrant control. To be justified, control of undesirable species must increase forage production or availability for livestock. Reducing unwanted plants to a tolerable level generally is ...
Desertification and climate change—the Australian
... Warren & Khogali 1992). At one extreme is the view that drought, which is normally a short term, natural fluctuation in climate, accelerates the long term rate of land degradation (Hill & Peter 1996). This implies that when long term reductions in rainfall occur, such as those which have affected pa ...
... Warren & Khogali 1992). At one extreme is the view that drought, which is normally a short term, natural fluctuation in climate, accelerates the long term rate of land degradation (Hill & Peter 1996). This implies that when long term reductions in rainfall occur, such as those which have affected pa ...
Ranchers as a Keystone Species in a West That Works By Richard L
... A word of caution regarding all of these findings. The West is not one place, but many places that grade into each other. They have different biological histories, and different ecological structures and functions, upon which cultural histories and landscape have been and are being superimposed. The ...
... A word of caution regarding all of these findings. The West is not one place, but many places that grade into each other. They have different biological histories, and different ecological structures and functions, upon which cultural histories and landscape have been and are being superimposed. The ...
PDF - Smithsonian Tropical Research Institute
... dispersal or contagion from parent trees (e.g. Janzen ...
... dispersal or contagion from parent trees (e.g. Janzen ...
Strategies for Landscape-Scale Restoration in the Tropics
... On January 26-28, 2012, the Yale Student Chapter of the International Society of Tropical Foresters (ISTF) held their 18th annual conference at the Yale School of Forestry & Environmental Studies in New Haven, Connecticut. The conference, titled Strategies for Landscape-Scale Restoration in the Trop ...
... On January 26-28, 2012, the Yale Student Chapter of the International Society of Tropical Foresters (ISTF) held their 18th annual conference at the Yale School of Forestry & Environmental Studies in New Haven, Connecticut. The conference, titled Strategies for Landscape-Scale Restoration in the Trop ...
Deadwood Rangeland Health Assessment Determination - 7/08 150 KB
... trampled and damaged by cattle. A survey conducted along Jenny Creek (T39S R4E Section 3) found altered streambanks along 36 percent of the 200 meters surveyed (Ashland Exclosure Monitoring 2005). This protocol describes the linear length of streambank alteration that can be directly attributed to l ...
... trampled and damaged by cattle. A survey conducted along Jenny Creek (T39S R4E Section 3) found altered streambanks along 36 percent of the 200 meters surveyed (Ashland Exclosure Monitoring 2005). This protocol describes the linear length of streambank alteration that can be directly attributed to l ...
Alternative states and positive feedbacks in restoration ecology
... Figure 2. Three alternative restoration scenarios: two that meet their restoration goals (in blue) and one that does not (in yellow). In case 1 (a), changes in the system result primarily from alterations of historic environment (e.g. the disturbance regime or abiotic conditions), and re-establishme ...
... Figure 2. Three alternative restoration scenarios: two that meet their restoration goals (in blue) and one that does not (in yellow). In case 1 (a), changes in the system result primarily from alterations of historic environment (e.g. the disturbance regime or abiotic conditions), and re-establishme ...
Afrika Tag 2013 - Abstracts Veranstalter: Dr. Thomas Wagner
... Encroachment, the massive increase of a native plant species and the thereby associated suppression of fodder grasses, is observed in grasslands all over the world. In Namibia, encroachment accounts for yearly 70M€ loss in pastoral production, reaching almost 25% of the countries overall pastoral do ...
... Encroachment, the massive increase of a native plant species and the thereby associated suppression of fodder grasses, is observed in grasslands all over the world. In Namibia, encroachment accounts for yearly 70M€ loss in pastoral production, reaching almost 25% of the countries overall pastoral do ...
Eucalypt woodlands Regrowth Benefits
... Most seeds of woodland eucalypts fall close to and generally within two or three times the height of the parent tree. This means that reforestation in many sites will be strongly limited by seed supply or will be highly patchy around seed sources. However, eucalypt seed can be very easy to collect a ...
... Most seeds of woodland eucalypts fall close to and generally within two or three times the height of the parent tree. This means that reforestation in many sites will be strongly limited by seed supply or will be highly patchy around seed sources. However, eucalypt seed can be very easy to collect a ...
Reveg Guide for Temperate Riparian Lands
... beneficial animals; especially pollinating insects and predators of pests. Shade and shelter from riparian vegetation can improve pasture productivity and livestock health. Riparian vegetation also stores large quantities of carbon, improves water filtration and reduces the risk of salinity. Quality ...
... beneficial animals; especially pollinating insects and predators of pests. Shade and shelter from riparian vegetation can improve pasture productivity and livestock health. Riparian vegetation also stores large quantities of carbon, improves water filtration and reduces the risk of salinity. Quality ...
Grovetown Lagoon kit
... Activities about succession............................................................................................................................. 6 Competition ..................................................................................................................................... ...
... Activities about succession............................................................................................................................. 6 Competition ..................................................................................................................................... ...
Resilience Assessment of Lowland Plantations Using an
... Camphor laurel is a large, robust evergreen tree that is capable of exceeding a height of 40 m and a girth of 22 m in southern Japan [39]. These are old-growth trees (>150 years old, but they can live up to 1000 years) exhibiting signs of upper limb die-back, limb hollows and basal decay. In Taiwan, ...
... Camphor laurel is a large, robust evergreen tree that is capable of exceeding a height of 40 m and a girth of 22 m in southern Japan [39]. These are old-growth trees (>150 years old, but they can live up to 1000 years) exhibiting signs of upper limb die-back, limb hollows and basal decay. In Taiwan, ...
S Clarke Farms Ltd Conservation Plan
... woodland). This margin should be measured from the centre of the hedge, the edge of woodland, or the edge of the water in a ditch. NB This is slightly different from cross compliance (CFP 8.13). These two metre margin strips should receive no fertilisers, no pesticides (except spot treatment for nox ...
... woodland). This margin should be measured from the centre of the hedge, the edge of woodland, or the edge of the water in a ditch. NB This is slightly different from cross compliance (CFP 8.13). These two metre margin strips should receive no fertilisers, no pesticides (except spot treatment for nox ...
Online Resource Title: Supporting conservation with biodiversity
... richness highest on actively disturbed land and decreases with fallow age; many species only found on cultivated land population trends declines common in all land use categories, but least common in strict PAs; species commonly fared poorly in unprotected landscapes ...
... richness highest on actively disturbed land and decreases with fallow age; many species only found on cultivated land population trends declines common in all land use categories, but least common in strict PAs; species commonly fared poorly in unprotected landscapes ...
Mediterranean-climate oak savannas: the interplay between abiotic
... nistic, and may reflect stochastic variation or positive feedbacks (Scholes and Archer 1997). Overstorey trees compete with the understorey plants for resources, but they also provide benefits for them, such as shade, higher nutrient levels, more available moisture, protection from herbivores, more ...
... nistic, and may reflect stochastic variation or positive feedbacks (Scholes and Archer 1997). Overstorey trees compete with the understorey plants for resources, but they also provide benefits for them, such as shade, higher nutrient levels, more available moisture, protection from herbivores, more ...
Grazing Opportunities on Lands Enrolled in the USDA Natural
... weakening the plant. Areas dominated by preferred grasses are grazed just long enough for each plant to be foraged approximately once. The area is then allowed to rest from grazing. It is during the period of rest that grasses respond to grazing. The single forage event causes the plant to respond b ...
... weakening the plant. Areas dominated by preferred grasses are grazed just long enough for each plant to be foraged approximately once. The area is then allowed to rest from grazing. It is during the period of rest that grasses respond to grazing. The single forage event causes the plant to respond b ...
The density of trees ‡1 cm dbh and ‡10 cm dbh differed significantly
... managed forests can have an important role in biodiversity conservation (Johns 1985, Whitmore 1997). However, we have a limited understanding about how to sustainably manage tropical and subtropical forests to assure the conservation of biodiversity (Fimbel et al. 2001). This is particularly relevan ...
... managed forests can have an important role in biodiversity conservation (Johns 1985, Whitmore 1997). However, we have a limited understanding about how to sustainably manage tropical and subtropical forests to assure the conservation of biodiversity (Fimbel et al. 2001). This is particularly relevan ...
Restoring Dipterocarp Rainforest Diversity
... One tree family – the Dipterocarpaceae – dominates the lowland rainforests of Southeast Asia; ecologically in forest biomass, but also from an economic aspect since many valuable timber species belong to this family (Ashton, 1988). The dipterocarps are long-lived tree species with strong habitat ass ...
... One tree family – the Dipterocarpaceae – dominates the lowland rainforests of Southeast Asia; ecologically in forest biomass, but also from an economic aspect since many valuable timber species belong to this family (Ashton, 1988). The dipterocarps are long-lived tree species with strong habitat ass ...
Selection of indicator organisms for functional agrobiodiversity at the
... In these surveys, we investigated those arthropods (i.e., insects, spiders, and mites) that have narrow home ranges, because the population levels of such organisms might be affected by pesticide spraying. Different methods were needed to survey the various organisms, but it was important to use a s ...
... In these surveys, we investigated those arthropods (i.e., insects, spiders, and mites) that have narrow home ranges, because the population levels of such organisms might be affected by pesticide spraying. Different methods were needed to survey the various organisms, but it was important to use a s ...
cavity trees are refuges for wildlife
... Cavity trees are trees that have one or more holes in the trunk or main branches. Some cavities are excavated by birds, whereas others are created by decay associated with wounding or branch mortality. In Ontario, more than 50 species of birds and mammals depend on cavity trees for nesting, rearing ...
... Cavity trees are trees that have one or more holes in the trunk or main branches. Some cavities are excavated by birds, whereas others are created by decay associated with wounding or branch mortality. In Ontario, more than 50 species of birds and mammals depend on cavity trees for nesting, rearing ...
Management of Grazing in Wetlands
... often forming very dense populations. Although the ecological definition of primary productivity is fairly a recent one, its material meaning in terms of quantity of grass and herbs, and of their quality as food, have been well known to herdsmen and shepherds since the beginning of mammal domesticat ...
... often forming very dense populations. Although the ecological definition of primary productivity is fairly a recent one, its material meaning in terms of quantity of grass and herbs, and of their quality as food, have been well known to herdsmen and shepherds since the beginning of mammal domesticat ...