Improvement of Pulpwood Productivity of Fast Grown Eucalyptus and Acacia Tree Species in Southeast Asia

2009 ◽  
Vol 63 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Shinichi Sukeno
2021 ◽  
Vol 6 (3) ◽  
pp. 1075-1076
Author(s):  
Jian-Feng Yao ◽  
Xiao-Feng Zhang ◽  
Zhi-Xin Zhu ◽  
Hua-Feng Wang

2000 ◽  
Vol 14 (5) ◽  
pp. 709 ◽  
Author(s):  
Laurence A. Mound ◽  
Gerald Moritz

Six new species are described in the new genus Corroboreethrips: C. kallus, sp. nov., C. siagonus, sp. nov., C. stomius, sp. nov., C. subsolanus, sp. nov., C. suspectus, sp. nov. and C. zophus, sp. nov. They all live in cavities beneath thin, split bark of slender branches on particular Acacia tree species in arid parts of Australia, and two species-pairs show a vicariant distribution between Queensland and Western Australia. In life, adults of these minute black, wingless thrips are remarkable in appearance, decorated with irregular rows of tiny white dots, the product of numerous short, stout dorsal setae coated with a white waxy substance. The structure of the antennae of these species is unique within the Phlaeothripidae, with segments VII and VIII short and forming a small style that is closely joined to segment VI, segment III produced basally into a sleeve around the pedicel, and segment II strongly asymmetric. The mouth cone varies in length among the six species more than in any other known thrips genus. In two species it is relatively short, extending to the fore coxae, but in two others it extends as far as the hind coxae and is thus relatively longer than in any other phlaeothripid.


Zootaxa ◽  
2020 ◽  
Vol 4732 (4) ◽  
pp. 593-595
Author(s):  
LAURENCE MOUND ◽  
HONGRUI ZHANG

The new species of Phlaeothripidae described here was found breeding in the leaf litter under five unrelated tree species of the plant families Cupressaceae, Lauraceae, Magnoliaceae, Myrtaceae and Pinaceae at the Kunming City Arboretum, Yunnan, China. Species of the genus Allothrips feed on the spores of fungi on the surface of dead leaves and dead wood, and the adults are usually wingless (Mound 1972). A total of 24 taxa are currently listed within this genus, and bibliographic details for each of these is available on ThripsWiki (2019). In a revision of the genus worldwide, Mound (1972) recognized only four species, but with eight subspecies in the Eurasian pillichellus, and six subspecies in the North American megacephalus. Three of the subspecies of megacephalus were described from Australia, but were presumed to have been imported by human trading across the Pacific Ocean. Subsequently, Okajima and Urushihara (1997) described expansus from Thailand as a further subspecies of megacephalus. 


2016 ◽  
Vol 140 (1-2) ◽  
pp. 64-64
Author(s):  
Gabrijel Horvat ◽  
Jozo Franjić

This paper presents an invasive plant species that occur in the forests of Kalnik. It also presents the state of the distribution and their impact on forests of Kalnik. A total of 14 invasive species in the forests of Kalnik and these are – Acer negundo L., Ailanthus altissima (Mill.) Swingle, Ambrosia artemisiifolia L., Amorpha fruticosa L., Asclepias syriaca L., Conyza canadensis (L.) Cronquist, Echinocystis lobata (Michx.) Torr. et Gray, Erigeron annuus (L.) Pers., Impatiens glandulifera Royle, Juncus tenuis Willd.), Phytolacca americana L., Reynoutria japonica Houtt., Robinia pseudoacacia L., Solidago gigantea Aiton. Alochtonous vegetation is not only inevitable, but it also appears to be a constant future challenge in the globalizing world which communicates on all levels with every means possible. Its influence should not by any means be marginalized. Its importance and influence is not completely negative and there are possible benefits and dangers which should be controlled by the preventive measures and physical regulation. The most important species in Kalnik forest vegetation is definitely acacia. It is especially important for private forest lands where acacia tree has become very popular because of its characteristics as a fast growing tree species without any special requirements with relation to growth and it gives fast results concerning timber and firewood. Private lots are usually very small and fragmented. There is a growing need for timber, therefore the trees are grown extensively, from stumps and roots. Other woody species still do not pose a serious threat in economical or biological sense. The impact of herbaceous plants differs in various areas. The most problematic issues for the forestersare thick layers of unwanted specieswhich grow in young forest stands or in forests in the phase of restorationwhere these unwanted speciesinvasively compete with autochthonous species. In biological sense, invasive species pose a constant threat not only to domestic vegetation and biodiversity, but also to human health. We should also mention apiculture, a very important and well developed activity on Kalnik. Above mentioned species are very important and interesting for apiculture as a type of rich bee pasturage. Apiculture in this area depends on acacia pasturage and it is one of very important reasons for growing acacia tree. Other tree species are also valuable for bee pasturage, especially late in autumn when there is no other bee pasturage available and they are mostly species which blossom in autumn and represent a valuable source of pollen (Japanese Knotweed, Prickly cucumber and European goldenrod). Generally speaking, the biggest responsibility for possible consequences of invasive plant species to the vegetation of Kalnik lies on foresters who have to recognize and monitor the appearance of invasive species, especially in state forest lands where they grow and directly influence their composition and state.


2007 ◽  
Vol 45 (3) ◽  
pp. 236-241
Author(s):  
Simon P. Egadu ◽  
Patrick Mucunguzi ◽  
Joseph Obua

2018 ◽  
Vol 11 (3) ◽  
pp. 220-222 ◽  
Author(s):  
Thiago Assis Tavares ◽  
Adriano Geraldo Fonseca ◽  
Fernanda Freitas Sousa ◽  
Sebastião Lourenço De Assis Júnior

Resumo. A Teca (Tectona grandis Linn. F.) é uma espécie arbórea oriunda do sudeste da Ásia que foi introduzida no Brasil nos anos 60. Atualmente seu cultivo está em franca expansão em vários estados. Apesar desta espécie apresentar relativa resistência, alguns insetos têm sido reportados em povoamentos homogêneos, com possibilidades de provocar perdas em sua produção. Foi observada a ocorrência de uma cigarrinha em teca no município de Paulistas, Minas Gerais, Brasil. A espécie Aethalion reticulatum Linnaeus (Hemiptera: Aethalionidae) foi encontrada em galhos e folhas de árvores com três anos de idade. A ocorrência dessa cigarrinha indica a colonização e adaptação por insetos nativos, que futuramente poderão alcançar o status de praga da cultura da teca.Occurrence of Aethalion reticulatum Linnaeus (Hemiptera: Aethalionidae) in Tectona grandis Linn. f. (Verbenaceae) in Minas Gerais, BrazilAbstract. Teca (Tectona grandis Linn. F.) is a tree species originating in Southeast Asia wich was introduced in Brazil in the 1960s. Currently, its cultivation is booming in several states. Although this species shows relative resistance, some insects have been reported in homogenous stands, with possibilities of causing losses in their production. It was observed the occurrence of a spittlebug in teak in the municipality of Paulistas, Minas Gerais, Brazil. The specie Aethalion reticulatum Linnaeus (Hemiptera: Aethalionidae) was found on branches and leaves of three years old trees. The occurrence of this spittlebug indicates colonization and adaptation by native insects, which may eventually reach the pest status of teak culture.


2018 ◽  
Vol 2 (2) ◽  
pp. 97 ◽  
Author(s):  
Irnawati Irnawati ◽  
Muhammad Syahrul Kahar ◽  
Marlinda Indah Eka Budiarti

Sago tree (Metroxilon sp.) Is native to Southeast Asia. The method used in this research is to use descriptive method with case study and free interview (free interview) field in processing sago and sago tree species which in though. Village community Malawor District Makbon Sorong regency has long consumed sago from natural forests and some sago already planted by ancestors hereditary. When rice and yams run out, people consume sago as a substitute. Most people still manage sago using traditional method for that which become problem point of this research is how kind of sago, process of traditional and semi traditional (scar machine) along with economical value of processed sago which can by community of Kampung Malawor District of Makbon Regency Sorong 


Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 116
Author(s):  
Kanokporn Kaewsong ◽  
Daniel J. Johnson ◽  
Sarayudh Bunyavejchewin ◽  
Patrick J. Baker

The effects of forest fires on tree recruitment dynamics in tropical forests is important for predicting forest dynamics and ecosystem function in Southeast Asia. To our knowledge, no studies have examined the effects of fire intensity on community-level recruitment patterns in tropical forests due to the rarity of long-term observation datasets in fire-impacted tropical forests and the difficulty of quantifying fire intensity. We addressed two questions: (1) is tree recruitment among species affected by fire intensity? and if so, (2) are there specific plant functional traits associated with these responses? We used data from a long-term forest dynamics plot at the Huai Kha Khaeng (HKK) Wildlife Sanctuary in Thailand. The HKK plot occurs in a strongly seasonal tropical environment and has experienced several fires since its establishment in 1994. We found 46 tree species (52% of the 89 species analysed) showed evidence of reduced recruitment rates with increasing fire intensities during the most recent fire in 2005. Tree species in this flammable landscape have various leaf and wood functional traits associated with fire. Spatial and temporal variability in fire activity may lead to alterations in long-term taxonomic and functional composition of the forest due to selection on fire-related traits.


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