Solanum elaeagnifolium (silverleaf nightshade).

2021 ◽  
Author(s):  
Marianne Jennifer Datiles ◽  
Pedro Acevedo-Rodríguez
Keyword(s):  
Pacific Islands ◽  
Plant Diseases ◽  
Tropical Regions ◽  
Perennial Plant ◽  
The Pacific ◽  
Silverleaf Nightshade ◽  
Agricultural Weed ◽  
The Usa ◽  
Solanum Elaeagnifolium ◽  
Noxious Weed

Abstract S. elaeagnifolium is a deep-rooted summer-growing perennial plant, native to the Americas, but now widely naturalized beyond its native range in extra-tropical regions. It is considered a tenacious weed in many arid to semi-arid places including India, Australia, South Africa, the Pacific Islands, and the USA (Holm et al., 1979; Wagner et al., 1999; Randall, 2012; USDA-ARS, 2014). It is known to be invasive in Cuba (Oviedo-Prieto et al., 2012) and Hawaii (PIER, 2014), a principal weed in India (Holm et al., 1979), and an agricultural weed in Java (Randall, 2012). It has been declared a noxious weed in the U.S. states of Arkansas, California, Idaho, Nevada, and Washington, and an "A" designated weed for quarantine in Oregon and Washington (USDA-NRCS, 2014). The species competes with crops, interferes with livestock, acts as a host for insects and plant diseases, and spreads by forming dense colonies from its extensive root system as well as by propagation of seeds (Boyd et al., 1984; Wagner et al., 1999; EPPO, 2007; PIER, 2014). The species is difficult to control without chemicals (UC Davis Weed Research and Information Center, 2013) and it is essential to keep it out of uncontaminated areas (EPPO, 2007). The species is known to be toxic to cattle, causing damage to intestinal tract and nervous systems and, in severe cases, can cause hallucinations, paralysis, and death (Mas and Lugo-Torres, 2013).

scholarly journals Looking north or looking anywhere? Indo-Fijian international relations after the coups of May 2000 and December 2006

2017 ◽  
Vol 4 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Eberhard Weber
Keyword(s):  
International Relations ◽  
Pacific Islands ◽  
Hard Core ◽  
Political Orientation ◽  
High Profile ◽  
The Pacific ◽  
The Usa ◽  
Old Friends ◽  
The Eu

Between 1987 and 2006 Fiji experienced four coups in which Governments were overthrown by their military forces or parts of it. After the fourth coup in December 2006 old metropolitan friends such as Australia, New Zealand, the USA and the EU responded with travel sanctions, cancellation of military cooperation and frozen development assistance. When Fiji was politically isolated it fostered secondary political friendships of olden days and established new ones. The paper searches for evidence of Fiji’s agency to change the structure of its International Relations (IR) after the coup of 2000. Such relations were first shaped in Prime Minister Qarase’s ‘Look North’ policy, but following the coup of December 2006 Fiji’s IR took a new quality once political isolation was overcome and internal power stabilized. The paper concentrates on Indo- Fijian relations, which, however, are embedded in Fiji’s general effort to achieve greater independence from old friends by forcing new international relationships. Of particular interest in this context is, if Fiji’s political orientation after 2006 has just been a temporary necessity born out of political isolation or if Fiji’s policy of fostering South–South relations will remain a decisive element of the country’s foreign policy in the long term. To understand IR in the context of Fiji and India it is essential to look at both countries, their interests and agency. Looking at Fiji alone would leave the question unanswered, why Indian Governments had an interest to cooperate with the country in the Pacific Islands despite hard-core nationalist anti-Indian sentiments and politics pursued in Fiji after the coup of 2000. It also won’t be conclusive why India should be interested at all to foster high profile relations with a tiny country like Fiji in a situation when Indian governments were aiming at much higher goals.

scholarly journals Turunan Senyawa Flavonoid dari Daun Macaranga involucrata (Roxb.) Baill dari Buton Tengah, Sulawesi Tenggara

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Edi Ilimu ◽  
Yana Maolana Syah
Keyword(s):  
Phenolic Compounds ◽  
1H Nmr ◽  
Pacific Islands ◽  
2D Nmr ◽  
Separation And Purification ◽  
Tropical Regions ◽  
The Pacific ◽  
Methoxy Flavone ◽  
Pure Compounds ◽  
Stilbene Derivatives

Macaranga merupakan salah satu genus terbesar dari famili Euphorbiaceae yang terdiri dari 300 spesies dengan nama lokal mahang-mahangan. Tumbuhan Macaranga tersebar luas di wilayah Afrika dan Madagaskar di bagian barat hingga ke wilayah tropis Asia, Australia utara dan kepulauan Pasifik. Di Indonesia tumbuhan Macaranga tersebar di beberapa daerah yaitu daerah Papua, Maluku, Sulawesi, Kalimantan, Sumatera, Bangka, dan Jawa. Kajian fitokimia beberapa spesies Macaranga menunjukan adanya kelompok senyawa fenolik yaitu turunan flavonoid dan stilben, serta turunan terpenoid. Senyawa turunan fenolik tersebut memiliki keunikan dari struktur molekulnya, yaitu adanya subtituen tambahan dari metabolit terpenoid yaitu prenil (C5), geranil (C10), farnesil (C15), dan geranilgeranil (C20). Pada penelitian ini telah dilakukan isolasi metabolit sekunder dari daun M. involucrata (Roxb.) Baill dengan metode maserasi menggunakan pelarut aseton, kemudian dilanjutkan pemisahan dan pemurnian dengan menggunakan kromatografi cair vakum dan kromatografi radial untuk mendapatkan senyawa murni. Penentuan struktur dilakukan berdasarkan analisis data spektrum NMR 1D (1H-NMR dan13C-NMR), NMR 2D (NOESY, TOCSY, HSQC, dan HMBC), dan spektrum massa (MS). Berdasarkan metodologi tersebut, dua senyawa turunan flavon yaitu 5,7,4’-trihidroksi-3’(3-metilbut-2-enil)-3-metoksiflavon (1) dan makarangin (2), telah berhasil diisolasi dari tumbuhan ini. Berdasarkan hasil penelitian tersebut menunjukan daun M. involucrata (Roxb.) Baill yang berasal dari Kabupaten Buton Tengah, Sulawesi Tenggara menghasilkan senyawa fenolik turunan flavonoid. Kata kunci: Euphorbiaceae, Macaranga involucrata (Roxb.) Baill, flavon. Macaranga is one of the largest genera of the family Euphorbiaceae comprising 300 species with local name “mahang-mahangan”. Macaranga is widespread in the region of Africa and the west of Madagascar to the tropical regions of Asia, northern Australia, and the Pacific islands. In Indonesia Macaranga spread in several areas:  Papua, Maluku, Sulawesi, Kalimantan, Sumatra, Bangka, and Java. Phytochemical studies showed the presence of several phenolic compounds such as flavonoids and stilbene derivatives. The phenolic compounds have a unique molecular structure with the addition of some substituents such as prenyl (C5), geranyl (C10), farnesyl (C15), and geranylgeranyl (C20). This research has been conducted on the isolation of secondary metabolites from the leaves of M. involucrata (Roxb.) Baill by maceration method using acetone, followed by separation and purification by using liquid vacuum chromatography and radial chromatography to obtain pure compounds. Determination of the structure is based on data analysis of 1D NMR spectrum (1H-NMR and 13C-NMR), 2D NMR (1H-1HCOSY, NOESY, TOCSY, HSQC, and HMBC), and mass spectra (MS). Based on this methodology, two flavone derivatives 5,7,4'-trihydroxy-3'(3-methylbut-2-enyl)-3-methoxy flavone (1) and macarangin (2), have been isolated from this plant. Based on these results showed that leaf of M. involucrata (Roxb.) Baill from Central Buton, Southeast Sulawesi produces phenolic compounds from flavonoid derivatives. Keywords: Euphorbiaceae, Macaranga involucrata (Roxb.) Baill, flavone.

scholarly journals 411 PB 054 ORIGIN OF HORTICULTURE IN SOUTHEAST ASIA AND THE DISPERSAL OF DOMESTICATED PLANTS TO THE PACIFIC ISLANDS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 489g-490
Author(s):  
Robert F. Bevacqua
Keyword(s):  
Southeast Asia ◽  
Pacific Islands ◽  
Fruit Crops ◽  
Important Food ◽  
Tropical Regions ◽  
The Pacific ◽  
Linguistic Evidence ◽  
Root Tuber ◽  
The Pacific Ocean ◽  
The Impact

Navigators from Southeast Asia began voyages of discovery into the Pacific Ocean four thousand years ago that resulted in the dispersal of an assemblage of domesticated plants that has come to dominate horticulture in the world's tropical regions. Archaeological, botanical, and linguistic evidence indicates the assemblage included coconut, banana, taro, yam, sugar cane, and other important food and fiber crops. An emerging view among scholars is that an origin of horticulture is associated with early Chinese civilization and that Southeast Asia was a center for the domestication of vegetatively propagated root, tuber, and fruit crops. This paper describes (1) an origin for horticulture in Southeast Asia, (2) the eastward dispersal of horticultural plants by voyagers, and (3) the impact of the introduction of horticulture on the natural enviroment of the Pacific Islands.

scholarly journals Evaluations of the Climatologies of Three Latest Cloud Satellite Products Based on Passive Sensors (ISCCP-H, Two CERES) against the CALIPSO-GOCCP

2021 ◽  
Vol 13 (24) ◽  
pp. 5150
Author(s):  
Faisal S. Boudala ◽  
Jason A. Milbrandt
Keyword(s):  
Pacific Islands ◽  
Polar Regions ◽  
Active Sensors ◽  
Tropical Regions ◽  
Satellite Retrieval ◽  
The Pacific ◽  
Summer Hemisphere ◽  
Passive Sensors ◽  
Winter Hemisphere ◽  
Global Mean

In this study, the climatologies of three different satellite cloud products, all based on passive sensors (CERES Edition 4.1 [EBAF4.1 and SYN4.1] and ISCCP–H), were evaluated against the CALIPSO-GOCCP (GOCCP) data, which are based on active sensors and, hence, were treated as the reference. Based on monthly averaged data (ocean + land), the passive sensors underestimated the total cloud cover (TCC) at lower (TCC < 50%), but, overall, they correlated well with the GOCCP data (r = 0.97). Over land, the passive sensors underestimated the TCC, with a mean difference (MD) of −2.6%, followed by the EBAF4.1 and ISCCP-H data with a MD of −2.0%. Over the ocean, the CERES-based products overestimated the TCC, but the SYN4.1 agreed better with the GOCCP data. The ISCCP-H data on average underestimated the TCC both over oceanic and continental regions. The annual mean TCC distribution over the globe revealed that the passive sensors generally underestimated the TCC over continental dry regions in northern Africa and southeastern South America as compared to the GOCCP, particularly over the summer hemisphere. The CERES datasets overestimated the TCC over the Pacific Islands between the Indian and eastern Pacific Oceans, particularly during the winter hemisphere. The ISCCP-H data also underestimated the TCC, particularly over the southern hemisphere near 60° S where the other datasets showed a significantly enhanced TCC. The ISCCP data also showed less TCC when compared against the GOCCP data over the tropical regions, particularly over the southern Pacific and Atlantic Oceans near the equator and also over the polar regions where the satellite retrieval using the passive sensors was generally much more challenging. The calculated global mean root meant square deviation value for the ISCCP-H data was 6%, a factor of 2 higher than the CERES datasets. Based on these results, overall, the EBAF4.1 agreed better with the GOCCP data.

Vulpia myuros (annual fescue).

2021 ◽  
Author(s):  
Ewald Weber
Keyword(s):  
Native Species ◽  
Cropping Systems ◽  
Early Spring ◽  
Perennial Grasses ◽  
Western Us ◽  
The Pacific ◽  
Agricultural Weed ◽  
The Usa ◽  
Winter Annual ◽  
Wool Industry

Abstract Vulpia myuros is an annual grass, native to much of Europe and parts of Asia, introduced to the USA, Australia and a number of other countries, and reported as invasive in Australia, the western USA and parts of the Pacific. It out competes native species in grasslands of the western US and is a significant agricultural weed. It forms dense swards and its shallow roots suppress growth of native grasses and forbs. Establishment of native plants is strongly hindered once it has become dominant; because it is a winter-annual, it grows rapidly in early spring, thus successfully competing with the slower-growing native perennial grasses. It is a problem weed in pastures and in direct-seed cropping systems. Infested hay can cause injury to livestock due to the sharp seeds. Seeds easily attach to animals and cause losses in the wool industry. Residues of degrading Vulpia plants affect growth of other species including crops.

Pennisetum clandestinum (Kikuyu grass).

2021 ◽  
Author(s):  
Chris Parker
Keyword(s):  
South Africa ◽  
New Zealand ◽  
Soil Conservation ◽  
Eastern Africa ◽  
Pennisetum Clandestinum ◽  
Perennial Plant ◽  
The Usa ◽  
Below Ground ◽  
Kikuyu Grass ◽  
Noxious Weed

Abstract P. clandestinum is an aggressive perennial plant, spreading by rhizomes below ground, especially by long runners above ground, and it also sets seed. It is native to the highlands of eastern Africa but has been widely introduced elsewhere for forage and for soil conservation. In well managed situations it does not generally spread very far but it is highly tolerant of grazing and mowing and can steadily invade poorly managed plantations. It also readily invades natural vegetation with resultant loss of biodiversity. This has occurred in Australia, New Zealand, South Africa, Hawaii and the Galapagos. It is listed as a Federal Noxious Weed in the USA.

Angiostrongylus cantonensis and Human angiostrongylosis

2011 ◽  
Author(s):  
Qiao-Ping Wang ◽  
Zhao-Rong Lun
Keyword(s):  
Pacific Islands ◽  
Angiostrongylus Cantonensis ◽  
Eosinophilic Meningitis ◽  
Human Beings ◽  
Zoonotic Pathogen ◽  
The Past ◽  
First Case ◽  
The Pacific ◽  
The Usa ◽  
Main Clinical Manifestation

Angiostrongylus cantonensis was first discovered in rats in Guangzhou (Canton), China in 1935 (Chen 1935). A. cantonensis is a zoonotic pathogen, which causes human angiostrongylosis with the main clinical manifestation of eosinophilic meningitis. The first case of human angiostrongylosis was reported in Taiwan in 1945. Subsequently several outbreaks of this disease occurred in Pacific Islands (Rosen et al. 1961; Kliks and Palumbo 1992). In the past decade, a number of outbreaks of human angiostrongylosis have emerged in some endemic regions, especially in China (Wang et al. 2008). Additionally, increasing numbers of travellers are diagnosed with eosinophilic meningitis caused by A. cantonensis after returning from endemic regions (Lo et al. 2001; Slom et al. 2002; Bartschi et al. 2004; Podwall et al. 2004; Kumar et al. 2005; Leone et al. 2007; Ali et al. 2008). The parasite continues to threaten human beings, especially people living in the Pacific Islands and Asia. So far, at least 2,825 cases have been recorded; of them, 1,337 were reported in Thailand, 769 in China (Hong Kong and Taiwan), 256 in Tahiti, 116 in the USA (Hawaii and Samoa) and 114 cases in Cuba (Wang et al. 2008).

scholarly journals Envisioning South-South relations in the fields of environmental change and migration in the Pacific Islands - past, present and futures

2015 ◽  
Vol 2 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Eberhard Weber
Keyword(s):  
Climate Change ◽  
Developing Countries ◽  
Pacific Islands ◽  
Pacific Islanders ◽  
Marshall Islands ◽  
Pacific Island ◽  
The Pacific ◽  
The Usa ◽  
Migration Flows ◽  
Pacific Island Countries

Climate change poses severe threats to developing countries. Scientists predict entire states (e.g. Kiribati, Marshall Islands, Tuvalu, and Maldives) will become inhabitable. People living in these states have to resettle to other countries. Media and politicians warn that climate change will trigger migration flows in dimensions unknown to date. It is feared that millions from developing countries overwhelm developed societies and increase pressures on anyway ailing social support systems destabilizing societies and becoming a potential source of conflict.Inhabitants of Pacific Islandsahave been mobile since the islands were first settled not longer than 3,500 years ago. Since then people moved around, expanded their reach, and traded with neighbouring tribes (and later countries). With the event of European powers in the 15thcentury independent mobility became restricted after the beginning of the 19thcentury. From the second half of the 19thcentury movements of people predominately served economic interests of colonial powers, in particular a huge colonial appetite for labour. After independence emigration from Pacific Island countries continued to serve economic interest of metropolitan countries at the rim of the Pacific Ocean, which are able to direct migration flows according to their economic requirements.If climate change resettlements become necessary in big numbers then Pacific Islanders do not want to become climate change refugees. To include environmental reasons in refugee conventions is not what Pacific Islanders want. They want to migrate in dignity, if it becomes unavoidable to leave their homes. There are good reasons to solve the challenges within Pacific Island societies and do not depend too much on metropolitan neighbours at the rim of the Pacific such as Australia, New Zealand and the USA. To rise to the challenge requires enhanced Pan-Pacific Island solidarity and South-South cooperation. This then would result in a reduction of dependencies. For metropolitan powers still much can be done in supporting capacity building in Pacific Island countries and helping the economies to proposer so that climate change migrants easier can be absorbed by expanding labour markets in Pacific Island countries.

The Pacific Islands and the USA.

1997 ◽  
Vol 70 (2) ◽  
pp. 304
Author(s):  
Mike Evans ◽  
Ron Crocombe
Keyword(s):  
Pacific Islands ◽  
The Pacific ◽  
The Usa

Fungi anamorphici in Australasia

2001 ◽  
Vol 14 (3) ◽  
pp. 485 ◽  
Author(s):  
Eric H. C. McKenzie ◽  
Eric H. C. McKenzie
Keyword(s):  
New Zealand ◽  
Nutrient Cycling ◽  
Papua New Guinea ◽  
Plant Pathogens ◽  
Pacific Islands ◽  
Solomon Islands ◽  
Plant Diseases ◽  
Marine Environments ◽  
Pathogenic Species ◽  
The Pacific

Fungi are everywhere but mycologists are not and the fungi anamorphici, which includes hyphomycetes and coelomycetes, is an under-studied group in Australasia. It is the second largest group of fungi and its members play an important role in nutrient cycling. Plant pathogenic species are the best-documented and fungi anamorphici feature prominently in lists of plant diseases for Australia, New Zealand and the Pacific Islands. The few resident mycologists specialising in taxonomy and systematics of fungi anamorphici have made major advances in the study of plant pathogens (e.g. Bipolaris, Fusarium) and those of industrial importance (e.g. Penicillium). Visiting mycologists who have made significant collections of Australasian fungi anamorphici include B. C. Sutton in Australia, S. J. Hughes in New Zealand and T. Matsushima in Australia, Papua New Guinea and the Solomon Islands. A census of fungi anamorphici is being prepared forFungi of Australia and a database of all species recorded from New Zealand is being compiled. Australasian studies of fungi anamorphici in freshwater and marine environments and those associated with arthropods are discussed. Rainforests and numerous other habitats in Australasia remain a vast storehouse of unknown fungi anamorphici—thousands of species yet to be collected, classified and described.

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