scholarly journals Species Diversity and Structure of an Intact Freshwater Swamp Forest in the Niger Delta

2017 ◽  
Vol 07 (02) ◽  
pp. 242-254
Author(s):  
Nwabueze I. Igu
Keyword(s):  
Species Diversity ◽  
Niger Delta ◽  
Swamp Forest ◽  
Freshwater Swamp

scholarly journals Distribution of Ecosystem Health Indicators for Biomonitoring of Oil Pollution in the Western Niger Delta, Nigeria

2019 ◽  
pp. 1-5
Author(s):  
Tambeke N. Gbarakoro ◽  
Onome Okagbare ◽  
Adanna Ucheagwu ◽  
M. Aline E. Noutcha ◽  
Samuel N. Okiwelu
Keyword(s):  
Niger Delta ◽  
Ecosystem Health ◽  
Oil Pollution ◽  
Health Indicators ◽  
Free Living ◽  
Swamp Forest ◽  
Soil Microarthropods ◽  
Freshwater Swamp ◽  
Full Complement ◽  
Physical And Chemical

As a result of the limitations of physical and chemical methods for monitoring pollution, interest on the more reliable biological monitoring intensified over the past four decades. Soil microarthropods, specifically the free-living mites (Cryptostigmata, Mesostigmata, Prostigmata) and Collembolans were used as monitor (ability to withstand pollutants) and indicator (sensitive to pollutants) species in the Eastern Niger Delta. Study was undertaken in the Western Niger Delta (Delta State) across three eco-vegetational zones (freshwater swamp forest, Mangrove swamp forest, Lowland rainforest) in the area to determine if these ecosystem health indicators were widely distributed in these zones. Collections were made during the rainy season over a 4-month period. A modified Berlese-Tullgren funnel was used for extraction of microarthropds. Free-living mites: Cryptostigmata (Oribatida) – Archogozettes magnus, Opiida sp., Annecticarus sp., Bicyrthermania negeriana, Cephalida sp., Scheloribates sp., Galumnida sp., Mesostigmata (Gamasida) - Asca sp., Trichuropodida and Collembolan – Paronella sp., were widely distributed across the eco-vegetational zones. Oribatids were most abundant across eco-vegetational zones. These mesofauna contained the full complement of monitor and indicator species. It is therefore possible to use these mesofauna for biomonitoring of oil pollution across the Niger Delta (eastern and western sectors), Nigeria.

Next-Generation identification tools for Nee Soon freshwater swamp forest, Singapore

2018 ◽  
Vol 70 (1) ◽  
pp. 155-173 ◽  
Author(s):  
S.N. Kutty ◽  
◽  
W. Wang ◽  
Y. Ang ◽  
Y.C. Tay ◽  
...  
Keyword(s):  
Next Generation ◽  
Swamp Forest ◽  
Freshwater Swamp

Rediscoveries, new records, and the floristic value of the Nee Soon freshwater swamp forest, Singapore

2018 ◽  
Vol 70 (1) ◽  
pp. 49-69 ◽  
Author(s):  
K.Y. Chong ◽  
◽  
R.C.J. Lim ◽  
J.W. Loh ◽  
L. Neo ◽  
...  
Keyword(s):  
New Records ◽  
Swamp Forest ◽  
Freshwater Swamp

scholarly journals Herbivore insects and predatory arthropods in freshwater swamp rice field in South Sumatra, Indonesia sprayed with bioinsecticides of entomopathogenic fungi and abamectin

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Siti Herlinda ◽  
Ghanni Prabawati ◽  
Yulia Pujiastuti ◽  
Susilawati Susilawati ◽  
Tili Karenina ◽  
...  
Keyword(s):  
Species Diversity ◽  
Entomopathogenic Fungi ◽  
Rice Field ◽  
Block Design ◽  
Nilaparvata Lugens ◽  
Synthetic Insecticide ◽  
Randomized Block Design ◽  
Freshwater Swamp ◽  
Predatory Insects ◽  
Predatory Arthropods

Abstract. Herlinda S, Prabawati G, Pujiastuti Y, Susilawati, Karenia T, Hasbi, Irsan C. 2020. Herbivore insects and predatory arthropods in freshwater swamp rice field in South Sumatra, Indonesia sprayed with bioinsecticides of entomopathogenic fungi and abamectin. Biodiversitas 21: 3755-3768. Herbivore insect population and predatory arthropods in rice field may be effected by the application entomopathogenic fungi or synthetic insecticide. The objective of this research was to analyze individual quantity of herbivore insects and predatory arthropod inhabiting freshwater swamp rice fields treated with bioinsecticides and abamectin (commercial insecticide). This research was conducted in the freshwater swamp rice field located in Village Pelabuhan Dalam, Sub District Pemulutan, District Ogan Ilir, and South Sumatra. The experiment was arranged in a Completely Randomized Block Design consisted of four plots of treatment. The research used the bioinsecticides made from entomopathogenic fungi (Beauveria bassiana, Metarhizium anisopliae, and Cordyceps military), and abamectin. Sampling to collect arthropods inhabiting rice canopy was also conducted using an entomological net in the study locations. This research found 12 families of herbivore insects with 22 species dominated by Nilaparvata lugens and Leptocorisa acuta and 32 species of spider belonged to eight families dominated by Tetragnatha virescens and Oxyopes matiensis. The species diversity of spider was higher in the plots of the bioinsecticide compared to that of the abamectin. Predatory insects found belonged to 14 species belonged to eight families dominated by species of Ophionea nigrofasciata, Verania discolor, and Paedorus fuscipe. The abundance of predatory insects in plots sprayed with the bioinsecticides was higher compared to that of the abamectin plot. The abundance and species diversity of predatory arthropod sprayed with bioinsecticide of B. bassiana, M. anisopliae, and C. militaris did not decrease, while the population of herbivore insect tended to decrease.

scholarly journals KEANEKARAGAMAN JENIS TUMBUHAN PAKU-PAKUAN (PTERIDOPHYTA) DAN KONDISI TEMPAT TUMBUHNYA PADA HUTAN RAWA GAMBUT SEKUNDER DAN LAHAN GAMBUT TERBUKA

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Furwoko Kirno ◽  
Dwi Astiani ◽  
Hanna Artuti Ekamawanti
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Survey Method ◽  
Site Conditions ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Plot Size ◽  
Peat Swamp ◽  
Index Value

The activities of the community around the peat swamp forest cause disruption of the ecosystem from the sustainability of the forest area's resources. Land clearing and peatland fires also affect the presence of ferns. The new environmental conditions due to changes in land cover cause ferns to be affected by these changes. Kuala Dua Village Kubu Raya Regency has secondary peat swamp forest and open peat land due to fires 3-4 years earlier so it is overgrown with a variety of new types of flora, one of which is a type of fern. The objective of the study is to describe species diversity of ferns and their site conditions in secondary peat swamp forests and open peatlands of Kuala Dua Village, Kubu Raya District. This research was conducted with survey method using multiple plot samples. The plots determination was done by purposive sampling which was taken place on the site where there were many species of ferns land. Three plots were on each land covered condition with a plot size of 5 m x 5 m that divided into 25 of a 1 m x 1 m sub plots. The results show that 5 species of ferns found in peat swamp forest and 4 species of ferns were found on open peatlands. The species that has the highest INP value in the forest was Asplenium belangeri and the species that has the INP value in open peatland was Nephrolefis falcata. Dominant Index, Spesies Diversity Index and Spesies Abudance Index were 0,12 and 0,18; 0,30 and 0,36; 0,51 and 0,52 on the forest and open peatland respectively. The Similarity Index value (IS) of ferns in secondary peat swamp forest and open peatland is 44%. The study shows dissimility of species fern in peat swamp forests and open peatlands.Keywords: Open peatland, Pteridophyta, secondary peat swamp forest

scholarly journals Geographic distribution of ebony leaf monkey Trachypithecus auratus (E. Geoffroy Saint-Hilaire, 1812) (Mammalia: Primates: Cercopithecidae

2000 ◽  
Vol 69 (3) ◽  
pp. 157-177 ◽  
Author(s):  
Vincent Nijman
Keyword(s):  
Geographic Distribution ◽  
Tectona Grandis ◽  
Montane Forest ◽  
Western Boundary ◽  
Forest Types ◽  
Swamp Forest ◽  
Trachypithecus Auratus ◽  
Leaf Monkey ◽  
Freshwater Swamp ◽  
Fundamental Units

As one of the fundamental units of ecology and biogeography, the geographic distribution of the endemic and threatened ebony leaf monkey Trachypithecus auratus (E. Geoffroy Saint-Hilaire, 1812) on the islands of Java, Bali, and Lombok (Indonesia) has been assessed. All localities where the species has been collected are listed, and forty-two areas (each in itself consisting of numerous smaller sites) where the species has been recorded are discussed. The species occurs in a large variety of forest types, including mangrove, beach, and freshwater swamp forest; everwet lowland and hill forest; dry decidious forest; montane forest up to 3,000 - 3,500 m a.s.l.; and in some forest plantations (teak Tectona grandis, rasamala Altingia excels, acacia Acacia spp). In East Java, certain populations are dimorphic, containing, besides the more common melanic individuals, also erythristic individuals. This erythristic pelage morph only occurs in the easternmost part of Java of which the line between Mt. Penanggunang and the surroundings of Mojokerto running southwards, via Wonosalam and Blitar, to Mts Kidul roughly forms the western boundary. Localities where individuals of the erythristic pelage morph have been collected or observed are given.

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