標題: Titlebook: Lake Chad; Ecology and Producti J.-P. Carmouze,J.-R. Durand,C. Lévêque Book 1983 Dr W. Junk Publishers, The Hague 1983 Fauna.benthic.ecolog [打印本頁] 作者: FAULT 時間: 2025-3-21 19:51
書目名稱Lake Chad影響因子(影響力)
書目名稱Lake Chad影響因子(影響力)學(xué)科排名
書目名稱Lake Chad網(wǎng)絡(luò)公開度
書目名稱Lake Chad網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Lake Chad被引頻次
書目名稱Lake Chad被引頻次學(xué)科排名
書目名稱Lake Chad年度引用
書目名稱Lake Chad年度引用學(xué)科排名
書目名稱Lake Chad讀者反饋
書目名稱Lake Chad讀者反饋學(xué)科排名
作者: ADJ 時間: 2025-3-21 20:40 作者: 豐富 時間: 2025-3-22 02:50
The aquatic vegetation of Lake Chadh are related to the continuing slow recession of water since 1968. Due to travelling difficulties in the marshy or recently dried zones, the last surveys were made only in the south basin, while only some aerial surveys of the north basin could be made.作者: 自愛 時間: 2025-3-22 06:47 作者: Kindle 時間: 2025-3-22 10:31 作者: Ambiguous 時間: 2025-3-22 15:17
The phytoplanktonaxons. The southeastern part of Lake Chad appeared to have the most varied flora with 787 taxons compared with 628 for the northern part and only 461 in the southern part, where the collections were less numerous than in the other parts (Table 1).作者: Phonophobia 時間: 2025-3-22 19:58 作者: 偶然 時間: 2025-3-22 23:11 作者: exorbitant 時間: 2025-3-23 04:44
The zooplanktonwo unidentified Calanoids of secondary importance can be added to the list. The littoral forms of the Cladocera and Copepods, mostly attached to the vegetation were much more numerous (Dussart and Gras 1966; Rey and Saint-Jean 1968, and 1969).作者: Simulate 時間: 2025-3-23 07:30
The benthic fauna: ecology, biomass and communitieshis periphyton was far from negligible in Lake Chad where fringing vegetation and submerged water grasses were numerous. It was usually composed of different species to the benthos although some were occasionally found among the benthos when it was sampled close to plant clumps.作者: 真實的你 時間: 2025-3-23 12:28
Fish communities of Lake Chad and associated rivers and floodplainsat a given time. This definition only names a description — in the meaning of Legendre and Legendre, 1979 — of an ecological entity, but not this entity itself. This remark will be justified by the large complexity of the whole fluvio-lacustrine Chad system in the following discussion.作者: Obloquy 時間: 2025-3-23 14:49
The lacustrine ecosystem during the ‘Normal Chad’ period and the drying phased ‘Normal Chad’ that most of the quantitative studies were carried out. Here we will draw up a general balance of physical, chemical and biological characteristics of the environment in an attempt to understand its functioning, especially the hydrochemistry and the balance of energy and matter.作者: modish 時間: 2025-3-23 20:59 作者: VALID 時間: 2025-3-23 23:18 作者: 詳細目錄 時間: 2025-3-24 06:20
M. Servant,S. Servant??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: corpuscle 時間: 2025-3-24 06:52
Jean-Pierre Carmouze,Jacques Lemoalle??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: 嬉耍 時間: 2025-3-24 13:36 作者: cleaver 時間: 2025-3-24 15:04
Jean-Pierre Carmouze??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: 微塵 時間: 2025-3-24 19:24 作者: grounded 時間: 2025-3-25 03:15
Pierre Compère,André Iltis??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: Enliven 時間: 2025-3-25 05:00 作者: 等待 時間: 2025-3-25 10:33
Christian Lévêque,Claude Dejoux,Laurent Lauzanne??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: 產(chǎn)生 時間: 2025-3-25 14:59
Claude Dejoux??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: 故意釣到白楊 時間: 2025-3-25 16:46 作者: 沙發(fā) 時間: 2025-3-25 21:50 作者: Trochlea 時間: 2025-3-26 00:36 作者: 教育學(xué) 時間: 2025-3-26 07:14
Jean-René Durand??? The?Handbook?authors?continue to be?international leaders in their respective fields; the?list is cross disciplinary by design?and great effort?was taken to invite authors outside of the traditional?instructional design and technology community.??????978-1-4614-3185-5作者: 無王時期, 時間: 2025-3-26 10:34 作者: 黃油沒有 時間: 2025-3-26 16:10
Laurent Lauzannelife via buying or starting new companies, exiting ones entrepreneurial career due to old age retirement differs from exits that occur earlier during the career. In this chapter, we provide a short overview of the entrepreneur retirement and exit literature from an age perspective. Furthermore, we p作者: 領(lǐng)帶 時間: 2025-3-26 18:28 作者: ingenue 時間: 2025-3-26 20:56 作者: 確定方向 時間: 2025-3-27 03:40 作者: 鬼魂 時間: 2025-3-27 08:33
Historical background by the name of Leo Africanus, first spoke of a great lake situated in a desert region and fed by underground water coming from an arm of the Nile. He suggested that the River Niger originated from this lake.作者: 新奇 時間: 2025-3-27 11:25
Paleolimnology of an upper quaternary endorheic lake in Chad basin73), but was completed by diatom (Servant-Vildary 1978) and pollen analysis (Maley 1980) from lacustrine deposits. The main purpose was to reconstruct the paleoenvironments of the quaternary lakes in order to determine climatic variations. The results are incorporated into a more comprehensive progr作者: 責怪 時間: 2025-3-27 16:58
The lacustrine environment basin which has an outlet towards the Chad Bahr-el-Ghazal above the altitude of 283 m (Fig. I). Lake waters rise above this point only after several consecutive high river floods and then flow towards the lower regions in the northern part of the basin. Around this level, the lake looks like a smal作者: 處理 時間: 2025-3-27 21:30
Physical and chemical characteristics of the watersed both spatially and temporally. It is thus very difficult to describe the environment. We have subdivided the lake into a certain number of regions and considered parameters such as water turbulence, temperature, oxygenation and transparency as well as the chemical characteristics of the water. Th作者: 畢業(yè)典禮 時間: 2025-3-27 22:16 作者: Organonitrile 時間: 2025-3-28 05:24
The aquatic vegetation of Lake Chad The species composition and the location of the populations were determined and some observations on the aquatic vegetation of the then reduced lake area were made by Chouret and Lemoalle (1974), Fotius (1974), Fotius and Lemoalle (1976). These observations follow the changes in the lake basin whic作者: beta-carotene 時間: 2025-3-28 06:32 作者: 結(jié)構(gòu) 時間: 2025-3-28 12:52 作者: visual-cortex 時間: 2025-3-28 17:01 作者: antecedence 時間: 2025-3-28 22:13
Fish communities of Lake Chad and associated rivers and floodplains. We call ‘fish species community’ the possibly biased image given by the sampling of a group of fishes able to be caught in a particular environment at a given time. This definition only names a description — in the meaning of Legendre and Legendre, 1979 — of an ecological entity, but not this enti作者: Middle-Ear 時間: 2025-3-29 01:19
Secondary production (zooplankton and benthos) to evaluate their turnover rates and the amount of organic matter that each produces per unit time. Therefore, the zooplankton and zoobenthos production were studied as part of the research on the productivity of Lake Chad conducted from 1968 to 1973.作者: 嚙齒動物 時間: 2025-3-29 06:01
The exploitation of fish stocks in the Lake Chad regionmost of which originates from the central Niger delta in Mali and the Lake Chad region. This tonnage represents a similar quantity of protein to that produced by cattle and also has significant export value. Only recently has the value of this resource been recognized and so the wide range of knowle作者: Override 時間: 2025-3-29 10:10
The impact of birds on the lacustrine ecosystem cases it is only a halting spot for destinations further south and the migrants only use the lake as a resting place, not intensively utilizing its food resources. However, the morphology of the lake basin varies with changes in water level and the relationship between the lake and its bird fauna c作者: 預(yù)定 時間: 2025-3-29 15:08 作者: Torrid 時間: 2025-3-29 18:28
educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: Microgram 時間: 2025-3-29 20:38
Jean-Pierre Carmouze educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: 拱形面包 時間: 2025-3-30 01:01 作者: BADGE 時間: 2025-3-30 04:14
Jean-Pierre Carmouze,Jacques Lemoalle educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: 頂點 時間: 2025-3-30 10:14
Jean-Pierre Carmouze,Jean Marie Chantraine,Jacques Lemoalle educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: habile 時間: 2025-3-30 14:18 作者: 看法等 時間: 2025-3-30 17:53
André Iltis,Jacques Lemoalle educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: 嚴峻考驗 時間: 2025-3-30 23:09 作者: 有危險 時間: 2025-3-31 02:39 作者: disparage 時間: 2025-3-31 05:36
Christian Lévêque,Claude Dejoux,Laurent Lauzanne educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th作者: licence 時間: 2025-3-31 09:28 作者: Bmd955 時間: 2025-3-31 17:23
Vincent Bénech,Jean-René Durand,Jacques Quensière educational technology.Extensive references furnished to guThe 4th edition of the Handbook of Research on Educational Communications and Technology expands upon the previous 3 versions, providing?a comprehensive update?on research pertaining to?new and emerging educational technologies.?Chapters th
