Freshwater swamp forest use in the Niger Delta: perception and insights

2017 ◽  
Vol 22 (1) ◽  
pp. 44-52 ◽  
Author(s):  
Nwabueze I. Igu ◽  
Rob Marchant
Keyword(s):  
Niger Delta ◽  
Swamp Forest ◽  
Freshwater Swamp ◽  
Forest Use

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 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.

scholarly journals Palaeoclimatology and biostratigraphic significance of late Neogene/Quaternary vegetational changes recorded in the offshore western Niger Delta

2019 ◽  
Vol 59 (2) ◽  
pp. 373-390 ◽  
Author(s):  
Peter Adegbenga Adeonipekun ◽  
Margaret Adebisi Sowunmi
Keyword(s):  
Niger Delta ◽  
Age Determination ◽  
Climatic Conditions ◽  
Early Pliocene ◽  
Freshwater Swamp ◽  
Late Neogene ◽  
Dry Conditions ◽  
Main Basis ◽  
Lower Magnitude ◽  
Changes Over Time

Abstract Attempts at reconstructing palaeoclimatic changes over time using palynomorphs of three oil wells drilled in the shallow offshore Niger Delta led to cluster analysis-aided recognition of seven pollen zones. These pollen zones are equivalent to ten palaeoclimatic zones with alternating dry and wet conditions. The palynomorphs were classified into phytoecological groups and changes in their relative abundances were employed to interpret the palaeoclimatic conditions of their source areas. Contrasting fluctuations in the proportions of the Spore (Pteridophytes) phytoecological group and those of the Poaceae were the main basis for palaeoclimatic inferences. Trends of the occurrence of other phytoecological groups were used to substantiate our palaeoclimatic inferences. In the latest Miocene (5.8–5.5 Ma), climatic conditions were mainly wet until between 5.5 and 5.0 Ma, when extreme dry conditions prevailed. The early Pliocene part (5.0–>3.4 Ma) was generally wet, while the late Pliocene part (<3.0–2.7 Ma) was extremely dry, with wet conditions re-occurring at the latest Pliocene/earliest Pleistocene boundary at a lower magnitude than those of the early Pliocene. This is inferred from the bloom of open vegetation Acanthaceae undif., Polygala sp. and Asystacia gangetica, along with montane Podocarpus milanjianus from 2.4 Ma through 2.0 Ma and younger. The Acanthaceae bloom recorded the evolution of A. gangetica in the latest Pliocene/earliest Pleistocene at around 2.0 Ma in the Niger Delta. The upper Early Pliocene regional wet event is associated with distinct peaks of riverine forest, freshwater swamp and mangrove pollen. Our results further support earlier findings from other parts of West Africa with respect to palaeoclimatic changes in the late Neogene/earliest Quaternary. Equivalent qualitative palynostratigraphic events were recognized within the pollen zones which are useful for age determination, and the significance of biostratigraphic correlation of the zones is stressed.

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