Arthropod communities of the lowland rice ecosystem in the LAO PDR

Cover of: Arthropod communities of the lowland rice ecosystem in the LAO PDR |

Published by National Agriculture and Forestry Research Institute in Vientiane, LOA PDR .

Written in English

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Edition Notes

Includes bibliographical references (leaves 40-43).

Book details

StatementRapusas, H.R. ... [et al.].
ContributionsRapusas, H. R.
Classifications
LC ClassificationsMLCM 2009/00791 (S)
The Physical Object
Paginationii, 87 leaves :
Number of Pages87
ID Numbers
Open LibraryOL23685097M
LC Control Number2006329817

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Arthropod community structures of rice ecosystems in the Philippines - Volume 81 Issue 4 - K.L. Heong, G.B. Aquino, A.T. BarrionCited by:   Bambaradeniya CNB, Edirisinghe JP () Composition, structure and dynamics of arthropod communities in a rice agro-ecosystem.

Ceylon J Sci –48 Google Scholar Belder P, Bouman B, Cabangon R, Guoan L, Quilang E, Yuanhua L, Spiertz J, Tuong T () Effect of water-saving irrigation on rice yield and water use in typical lowland Author: Vijay Kumar Lingaraj, K. Nitin, B. Rajendra Prasad. Biodiversity of Arthropod in Cropping of Local Upland Rice Planted in Lowland with Organic Agriculture System and the Effect on Rice Plant Growth Akhmad Gazali1, Helda Orbani Rosa 2, Ilhamiyah3 1, 2Faculty of Agriculture, University of Lambung Mangkurat Jl.

Yani Simpang Empat Banjarbaru, South Kalimantan, Indonesia. The study on terrestrial arthropod communities in rice agro-ecosystems was conducted in Bathalagoda, Sri Lanka. A total of arthropod species was documented comprising species of insects in 90 families and 17 orders and 60 species of arachnids in 14 families.

Eight taxa new to Sri Lanka are reported. Arthropod communities of the lowland rice ecosystems in the Lao PDR. In: J M Schiller, M B Chabnphengxay, B Linguist and S Apa Rao (eds.) Rice in Laos.

In the countries of Laos, Thailand and Cambodia in the Mekong region, rice (Oryza sativa L.) is grown mostly under rainfed lowland conditions in the wet season, commonly as a mono crop without any crop rotation (Fukai and Ouk, ). Determinants of insecticide-use decisions of lowland rice farmers in Laos the insecticide misuse in rice production today has been attributed to the “unwelcome harvest” of the Green.

Irrigated lands cover over half of the world’s rice lands and produce about 75% of the world’s rice supply. The rainfed lowland rice ecosystem is characterized by its lack of control over the water and by both fl ooding and drought problems.

About one quarter of File Size: KB. Journal articles Ant-eating spiders in a slash and burn rice ecosystem Barrion, A.T. and J.A. Litsinger. Three new ant-eating spiders (Araneae: Zodariidae) from upland ricefields in the Philippines. Asia Life Sciences J43 Dryland rice spiders Barrion, A.T.

and J.A. Litsinger. The spider fauna of Philippine rice agroecosystems. We show that rice habitats contained the most diverse arthropod communities, compared with other uncultivated and cultivated land-use types.

In addition, arthropod species density and Simpson’s diversity in flower, vegetable and fruit habitats was positively related to rice cover in the local by: The main rice growing ecosystems are classified as irrigated lowland, rainfed lowland, and rainfed upland. Irrigated and rainfed lowland rice is grown on bunded fields creating semiaquatic environments where irrigation ensures production of one, two, or three crops per year, while rainfed lowland environments are flooded with rainwater kept within Arthropod communities of the lowland rice ecosystem in the LAO PDR book P.

Chivenge, O. Angeles, B. Hadi, C. Acuin, M. Connor, A. Stuart, R. Puskur, S. Johnson-Beebout. Northern moist farmlands and Western Savannah grasslands in Uganda. Arthropods were collected using a standard sweep net and a total of 17 orders represent arthropods were recorded from the three agro-ecological zones during the study.

Most arthropod fauna were collected in Bugiri, Lira and Kasese respectively. There are in total 68 ethnic groups in Lao PDR. These can be divided into lowland Lao (Lao Lum 55%), midland Lao (Lao Theung 30%) and upland Lao (Lao Sung 15%). The number of shifting cultivators in wasfamilies, i.e.

million people. In it had increased tofamilies (Phantanousy, ).File Size: 49KB. The temporal dynamics of the main indices of arthropod community diversity in the early rice crop and the late rice crop are shown in Fig. The Shannon-Weaver diversity index and the Pielou evenness index of the arthropod community did not differ significantly between the early and late crops at 15, 29, 57 and 85 DAT.

An arthropod community in a rice ecosystem was surveyed to determine the impact of two insecticides frequently used in Korean rice ecosystems: carbofuran 3GR, which targets the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae) in the early season and fenobucarb EC, which targets the brown planthopper, Nilaparvata.

Lowland areas are tropical, while the highest elevations and the mountains of the extreme north are sub-tropical.

The Mekong River is the dominant drainage system. It reaches Lao PDR from China in the northwest, where it demarcates the international borders with Myanmar and Thailand. It enters Lao, swings eastwards to Luang Prabang;File Size: KB.

This study can be considered typical for Lao PDR since the survey covered both lowland and highland areas. Consumption levels in areas close to rich fisheries resources (such as the Champassak area of southern Lao PDR and communities surrounding the Nam Ngum reservoir) may have even higher consumption figures.

Litter manipulation and the soil arthropod community in a lowland tropical rainforest Author links open overlay panel O.S. Ashford a W.A. Foster a B.L. Turner c E.J.

Sayer d Cited by:   Lao pdr disaster management reference handbook While the vast majority of Lao PDR’s population lives in small communities, the rate of urbanization has been steadily climbing at an annual rate of rough- ly 5 percent, a trend that is projected to continue through Culture With 47 official ethnic groups, Laos has one of the most.

A cluster-randomised controlled trial of the insect repellent n,n-diethyl-m-toluamide (deet) in Lao PDR. PLoS One8:e Hiscox A, Khammanithong P, Kaul S, Sananikhom P, Luthi R, Hill N, Brey PT, Lindsay SW: Risk factors for mosquito house entry in the Lao PDR. PLoS ONE8:e Rainfed lowland rice (RLR) is difficult to define precisely because of its central position in the continuum of rice ecosystems.

In fact, it is usually defined by what it is not: (1) it is not irrigated; (2) it is not upland because it is flooded for part of the crop cycle; and (3) it is not deepwater (flood-prone) rice because the flooding depth is less than 50 cm.

The Lao Ministryof Agriculture and Forestry (MAF) and the InternationalRice Research Institute (IRRI) jointly explored most of therice growing areas between October and April and collected samples of cultivated rice, and samples of six wild by: According to the MAF/FAO survey on the importance of fish and OAA in rice-based ecosystems in three provinces of Laos PDR, padek was consumed almost daily (>90% of surveyed days) (Garaway, ).

Therefore, there is a need to look more closely at the benefits people gain from this by:   This paper describes a survey of arthropods in rice-growing areas of Rio Grande do Sul, Brazil, undertaken to identify the main groups of insect pests and their natural enemies present in three producing regions during the stages of crop development.

The study was conducted during the crop years / and / in the municipalities of Cachoeira Cited by: 7. Arthropod Diversity and Community Structure in Relation to Land Use in the Mekong Delta, Vietnam Andrew Wilby,1* La Pham Lan,2 Kong Luen Heong,3 Nguyen Phi Dieu Huyen,2 Nguyen Huu Quang,2 Nguyen Viet Minh,2 and Matt.

B Thomas1 1Department of Agricultural Sciences, Imperial College London, Wye Campus, Wye, Kent, TN25 5AH, UK; 2Institute of Agricultural. Managing Tropical Rice Pests Through Conservation of Generalist Natural Enemies and Alternative Prey.

to explore whether there exist general and consistent patterns of arthropod community dynamics related to natural or intrinsic levels of biological control, and (2) to understand how the existing levels of biological control are affected by Cited by: Aquatic biodiversity and nutrition the contribution of rice-based ecosystems in the Lao PDR A monthly household survey has been conducted in households in three provinces of the Lao PDR.

The survey yielded information on acquisition, amount and uses of fish and other aquatic animals (OAAs) based on hour recall of the respondents over a.

Atlantic Biafran forest and Lowland evergreen forest of the Congo Basin and Equatorial Guinea, rich in Caesalpinioideae with Calpocalyx heitzii and Sacoglottis gabonensis (Letouzey, ; Tchouto et al., ). Arthropod sampling Two common sampling methods were used to sample the arthropod communities: quadrat sampling and.

Participation by Women Fishers in Community-Based Fisheries on the Sekong River, Lao PDR Abstract Rapid development of Laos’ natural resources, without adequate investment in human capital, is leading to a loss of resilience in the country’s river ecosystems. Millions of. the rice produced (Guttman, ).

Systems for rice-fish culture have been developed and rainfed lowland and irrigated rice ecosystems offer potential for further improvements in yield (Gregory, ). High-yield strains of rice require high nutrient inputs and measures to control pests. Managing use of fertilisers andFile Size: 3MB.

Geographically located in the heart of Southeast Asia, Lao Peoples' Democratic Republic (Lao PDR) is bordered by China, Thailand, Myanmar, Cambodia and Viet Nam. With a comparatively pristine natural environment and a small population of approximately million, the country is sometimes considered an undiscovered ‘treasure' in the region.

Customary laws governing the sacred natural sites of the Xe Champhone Ramsar site in Lao PDR: implications for site management The Role of Ethnic Leaders in the Refugee Community: A Case Study of the Lowland Lao in the American Midwest.

Fallow improvement with Chromolaena odorata in upland rice systems of Northern Laos. Chapter. Impacts of rodent outbreaks on food security in Asia Grant R. SingletonA,D, Steven BelmainB, Peter R.

BrownC, Ken AplinC and Nyo Me HtweA AInternational Rice Research Institute, Crop and Environmental Sciences Division, DAPO, BoxMetro Manila, Philippines. BNatural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4.

The soils in the rice-growing areas of central and southern Laos are dominated by Acrisols ().These soils are strongly weathered, have a clay-enriched subsoil, contain mostly low-activity clay minerals, and have a low base saturation (lowland rice Cited by: Advances in agronomic research in the lowland rice environments of Laos.

In J.M. Schiller, M.B. Chanphengxay and B. Linquist and S. Appa Rao (Ed.), Rice in Laos 1 ed. (pp. ) Manila, Philippines: IRRI and ACIAR.

Laos is an independent republic, and a landlocked nation in Southeast Asia, northeast of Thailand, west of coverssquare kilometers in the center of the Southeast Asian peninsula and it is surrounded by Myanmar (Burma), Cambodia, the People's Republic of China, Thailand, and seventy percent of its geographic area is made up of.

associated ecosystems for the livelihood security of families and entire communities. The Xe Bang Fai is one of the major rivers of central Laos and the Xe Bang Fai basin’s catchment area totals approximately 9, square kilometres (IUCN, ). Rice crops are attacked by a number of insects like terrestrial arthropods and nonrice pest insects that visit rice ecosystems, causing further concerns (Thongphak et al., ).

According to Pathak and Khan () there are about species worldwide, of which around species attack rice while rest are considered friendly by: 3. Structural Transformation, the Changing Role of Rice, and Food Security in Asia: Small Farmers and Modern Supply Chains pp.

15 Charles Timmer Agriculture, Markets, and Poverty: A Comparative Analysis of Lao PDR and Cambodia pp. 15 Raghav Gaiha and Md Shafiul Azam Food Security: Challenges and Opportunities for Eastern Europe and Central Asia pp.

<> Homma, K., Shiraiwa,T.,Horie,T. () Variavility of rice production in monsoon Open Agriculture Journal 8, Hossain, S., Homma, K., Shiraiwa, T. () Decadal and monthly change of an empirical coefficient in the relation between solar radiation and the daily range of temperature in Japan: implications for the estimation of solar.

Depending on the hydrology of where rice is grown, the rice environment can be classified broadly into irrigated rice, rainfed or unfavourable ecosystems. Irrigated lowland rice is grown in bunded fields with assured irrigation for one or more crops per year.

Usually, farmers try to maintain 5 to 10 cm of water (floodwater) on the field.Four winners will get the chance to be an IRRI scientist for a day! Drought is one of the most widespread and damaging of all environmental stresses, affecting 23 million hectares of rainfed rice in South and Southeast Asia alone.

Rice is normally grown during 04 February Delhi, India - The International Rice Research Institute (IRRI) South. This study investigated the type of environmental habitat that may explain the infection of individuals from 17 rodent species by Bartonella species in seven sites in Cambodia, Lao PDR, and Thailand.

No effects of host sex and host maturity on the level of individual infection by all Bartonella spp., but significant effects of locality, season, and host Cited by: 7.

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