Commercial Forestry As A Vector Of Alien Tree Species

Di: Stella

Introduction This tree species guide aims to provide an overview of the physical characteristics, environmental tolerances, silvicultural characteristics, and ecosystem services and disservices, The use of native species or non-invasive alien or less-invasive alien tree species as alternatives for highly invasive alien species in planted forest should be always considered

Some alien tree species used in commercial forestry and agroforestry cause major problems as invaders of natural and seminatural ecosystems. The magnitude of the problem

Commercial Forestry on Signal Hill and Lion’s Head, Cape Town

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We found 72 invasive alien tree species (17% of the total number of known invasive trees 31) including 52 genera and 32 families with costs that were deemed highly reliable and

This toolkit provides an overview, advice by example, and sources for further information on the best management practices for invasive alien species, to assist and direct Moreover, the probability of alien Cupressaceae and Pinaceae becoming naturalized or invasive was particularly high in these two continents. For both families, species

Demographic advantages over native species are critical for alien tree species to establish and roles in providing persist in subtropical forests. Yet, we lack an appropriate quantification of these demographic

It should be noted, however, that alien tree species have brought many benefits beside those from commercial plantations. Alien trees play important roles in providing fuel and other products to We use a population-based, spatially realistic matrix model to explore mechanisms underlying the observed agroforestry cause major problems as invasion patterns of an alien tree species, Prunus serotina Ehrh., in a Aim Woody plants were not widely considered to be important invasive alien species until fairly recently. Thousands of species of trees and shrubs have, however, been moved around the world. Many species have spread from

Commercial forestry has significantly shaped the global landscape of alien conifer invasions, particularly in the Southern Hemisphere where native ecosystems face ecological challenges. An alien species – animal, plant or micro- organism – is one that has been introduced as a result of human activity to an area it could not have reached on its own. Some alien species, such as

No regenerating L. kaempferi individuals were observed during the field census, suggesting the species is likely not invasive in our study system. The positive relationship Pinus and Eucalyptus species are the most important introduced species used in commercial forestry enterprises worldwide and most particularly in the tropics and subtropics. Many other

The effect of environmental heterogeneity on spatial spread of invasive species has received little attention in the literature. Altering landscape heterogeneity may be a suitable strategy to The introduction and movement of alien plant species within and among ecosystems is often intentional, mostly motivated by commercial trade and the ecosystem services they impart6–8.

When forest managers wish to remove alien species from forest stands in order to replace them by indigenous species, or when there is wish to remove alien trees from forest stands for other Abstract Ecological perturbations caused by biotic invasion have been identified as a growing threat to global sustainability. Invasive alien plants species (IAPS) are considered to be one of

Planted forests and invasive alien trees in Europe: A Code
Alien and Invasive Plant Species in South Africa
Alien Invasive Species: Impacts on Forests and Forestry
Forestry Trees as Invasive Aliens

Invasive species are the subset of established non-native alien or naturalized species that are a threat to native species and biodiversity. [3] The term „invasive“ is poorly defined and often the problem has increased Some alien tree species used in commercial forestry and agroforestry cause major problems as invaders of natural and seminatural ecosystems. The magnitude of the problem has increased

Planted forests of alien tree species make significant contributions to the economy and provide multiple products and ecosystem services On the other hand, non-native trees

This study investigates the use of WV-2 imagery in the classification and mapping of five common alien street trees in a complex urban environment. It also examined the Some alien tree species used in commercial forestry and agroforestry cause major problems as invaders of natural and seminatural ecosystems. The magnitude of the problem has increased significantly o

The difference can be explained in terms of the growth pattern of two tree species; eucalyptus grows much faster and uses water more efficiently. In brief, the value of water in commercial

A fast growing tree whose dispersal is facilitated by introduced frugivorous birds, the fire tree rapidly forms dense stands and negatively impacts the recruitment and survival of native plant A. altissima and R. pseudoacacia are the most reported invasive alien trees in these protected forest habitat types. Furthermore, examples of the impacts of these tree species

Monoculture Forest: Definition, Benefits, Drawbacks, and Alternatives A monoculture forest is a type of forestry practice where a single tree species is cultivated over a

IAP Species: Impact on the Natural Resource Base ‘Commercial forestry based on alien trees is a well established feature of the South African landscape and economy’ (Le Maitre et al.

The results indicate a potential for forest managers to monitor the status of soil nitrogen in commercial forestry compartments and determine how much fertiliser is required to optimise Despite the escalating threats to timber species from land conversion, illegal trade and unsustainable logging, we lack up-to-date conservation status assessments for many of these Our findings imply that the presence of alien species can contribute to natural forest restoration by improving the local environmental conditions for native species in the short-term. Given the

The history of afforestation with alien tree species on Signal Hill and Lion’s Head, which form part of the Table Mountain Nature Reserve, Cape Town, was reconstructed. The

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Commercial Forestry As A Vector Of Alien Tree Species

Commercial Forestry on Signal Hill and Lion’s Head, Cape Town