Oct, 2017 banner image of an oil palm weevil elaeidobius kamerunicus by ken walker via wikimedia commons cc 3. Elaeidobius kameronicus, elaeidobius subvittatus and mystrops costaricensis are the insects most commonly associated with oil palm inflorescences. Tapirus bairdii, mesoamerican tapir species mexico, guatemala, belize, etc the tapir is both nocturnal and diurnal, terrestrial. It is native to west and southwest africa, specifically the area between angola and the gambia. Curculionidae, with a synopsis of the family cylindrocorporidae and establishment of longibuccidae n. Dynamics in insect populations change according to palm species and weather conditions. Biology of elaeidobius kamerunicus and elaeidobius plagiatus coleoptera. In malaysia, the main pollinator is thrips hawaiiensis syed, 1979.
Aug 09, 2011 a detailed study on elaeidobius kamerunicus, the main pollinator of the african oil palm, has revealed a large carrying capacity for pollen grains due to different types of setae dhileepan, 1992. Rhynchophorinae and baridinae use palms as hosts for their brood and are. Layman research centre for forestry and agriculture, layman agro, wisma william satya, jalan adisucipto km 5, pontianak, west kalimantan indonesia. Text is available under the creative commons attributionsharealike license. This page was last edited on 16 january 2020, at 04. Full text of british journal of entomology and natural.
The gregarines, isabelle desportes, isbn 9004256024, 9789004256026 treatise on zoology. Life tables for elaeidobius kamerunicus faust coleoptera. Corley and tinker, 2003, although it is not a very efficient pollinator. Yield of fresh fruit bunches has increased following the introduction. In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. About this volume the phylum apicomplexa is characterized by the unique cell organisation of the zoites, the infective stages of unicellular parasites previously designated as sporozoa. Conservation leaders in africa call for a crackdown on biopiracy. The occurance of oil palm weevil, elaeidobius kamerunicus order. Biology of elaeidobius kamerunicus and elaeidobius plagiatus.
Some aspects of the ecology of elaeidobius kamerunicus faust. Weevil population density varies between localities and times of the year depending on certain extrinsic and intrinsic factors. Curculionidae main pollinators of oil palm in west africa article february 2011 with 297 reads how we. Also is a great example of an 18th century meditation on natural history, blending a scientific exactitude of classification with a confidence in gods hand behind the scenes. The larval stage suffered the highest mortality 60% and the mean total generation mortality was approximately 94%. Other weevils belonging to subfamilies such as dryophthorinae syn. Entomology the study of insects dominant groups of animals on earth today life on earth. In oil palm flowers, it has been documented that not all flowervisiting insects are pollinators, but some insects are recognized as predators, parasitoids or saprophages, which may affect the abundance and persistence of the. Banner image of an oil palm weevil elaeidobius kamerunicus by ken walker via wikimedia commons cc 3. The stem is cylindrical, up to 75 cm in diameter and covered with petiole bases in young palms, smooth in older trees 1012 years. Emydidae, inhabiting manmade cattle ponds in west texas from. The book also deals with biodiversity at the global, national and local levels as well as presents pollution case studies and disaster management.
Entomology janet spencer extension agent, anr isle of wight county. Pollination in the oil palms elaeis guineensis e oleifera. The effects of elaeidobius kamerunicus faust on rat. Pollination in the oil palms elaeis guineensis e oleifera and. Apicomplexa includes coccidian and hematozoa well known for human and veterinary diseases they cause, such as malaria, toxoplasmosis, babesiosis, coccidiosis, and the large group of. In oil palm flowers, it has been documented that not all flowervisiting insects are pollinators, but some insects are recognized as predators, parasitoids or saprophages, which may affect the abundance and persistence of the weevil. Textbook of environmental biology covers a wide range of topics. Myriapods are the only major zoological group for which a modern encyclopedic treatment has never been produced. Curculionoidea on oil palm on hainan island english yue, jianjun yan, zhen bai, cheng chen, zetan. Pollination activity of elaeidobius kamerunicus coleoptera. This unique book introduces the biological and ecological basis of the production process in water, and the biology of cultured species. Insects visit flowers not only to forage for nectar or pollen but also to search for hosts or prey, and to look for suitable habitats for breeding sites.
Notes on the biology of the slider, trachemys scripta elegans reptilia. Thrips hawaiiensis an overview sciencedirect topics. The occurance of oil palm weevil, elaeidobius kamerunicus. The two volumes of the myriapoda fill that gap with an updated. Faust, 1898 a genus closely related to anchylorhynchus franz, 2006 of different sizespresumably, different instarsand all of them seemed to have triangular mandibles. Bibliography on tapirus bairdii, mesoamerican tapir species. Curculionoidea is identified as the most efficient insect pollinator of oil palm syed 1979. The effects of elaeidobius kamerunicus faust on rat control programmes of oil palm estates in malaysia porim occasional paper wahid, mohd. Curculionidae and its impact on fruitset of oil palm elaeis guineensis in india. Similar alpha and beta diversity changes in tropical ant communities, comparing savannas and rainforests in brazil and indonesia. The effects of elaeidobius kamerunicus faust on rat control programmes of oil palm estates in malaysia porim occasional paper. In the studies reported, its net reproductive rate per generation, intrinsic. Some aspects of the ecology of the pollinating weevil of oil palm, elaeidobius kamerunicus faust an exotic insect to malaysia imported from cameroon, west africa, three years ago were studied in 1983 and 1984. Principles of field biology and ecology new york et al mcgrawhill, 1958, by allen h.
Curculionoidea on oil palm on hainan island english yue, jianjun yan, zhen bai, cheng chen, zetan lin, weifu jiao, fangzhen. Twentyfive years of progress in understanding pollination. Modern humans200,000 years insects350 million years 100,000 different species live in north america. Effectiveness of the oil palm pollinating weevil, elaeidobius. We have observed larvae of elaeidobius kamerunicus j. The government aimed to provide each pupil with a textbook but the reality was a severe shortage of textbooks and other teaching materials.
The oil palm pollinating weevil, elaeidobius kamerunicus in. Curculionidae main pollinators of oil palm in west africa article february 2011 with 297 reads how we measure reads. Full text of british journal of entomology and natural history. Elaeidobius kamerunicus was introduced from africa into the oil palm growing regions of asia and the pacific in the early 1980s caudwell 2001 and into the oil palm plantations of. Curculionidae, main pollinators of oil palm in west africa.
Palms 2010, biology of the palm family abstracts books. The egg, larval, pupal and adult survivorship, and the fertility of adults of elaeidobius kamerunicus, a pollinator of oil palm, were measured under laboratory and field conditions in malaysia. Ethiopia ministry of education moe provides textbooks for all grade class in ethiopia. Ethiopia text books pdf download grade 9, 10, 11 and 12. Penyerbukan oleh serangga elaeidobius kamerunicus coleoptera. Arecaceae a project is submitted to partial fulfillment of the requirement for the degree of bachelor of science with honours animal resource science and management department of zoology. The most immediate derelomine ancestor likely had a special association with the inflorescences of palms arecaceae involving pollination and oviposition into dispensable male flowers. Biology of elaeidobius kamerunicus and elaeidobius. It bridges the gap between research data and aquaculture techniques, and covers problems arising in aquaculture production, such as filtering molluscs. Elaeidobius kamerunicus faust, the pollinating weevil of oil palm, with emphasis on developing sampling techniques by chiu sheng bin, and in our opinion it is satisfactory in terms of scope, quality and presentation as partial fulfilment of the requirements for the degree of master of science. They spend almost 90% of their waking time feeding on grass and fruits. Curculionidae main pollinators of oil palm in west africa.
Mar 21, 2011 myriapods are the only major zoological group for which a modern encyclopedic treatment has never been produced. The oil palm pollinating weevil, elaeidobius kamerunicus. Diurnal variation in the population of elaeidobius kamerunicus on the anthesising male. International symposium 57 may 2010, montpellier, france. The intrinsic rate of natural increase, generation time, net reproductive rate. Pollination ecology and fruiting behavior in a monoecious species, jatropha curcas l. Cross pollination an overview sciencedirect topics. Ecology, epidemiology, and evolution of parasitism in daphnia, by dieter ebert illustrated html and pdf at nih filed under. The weevil elaeidobius kamerunicus was introduced into malaysia in 1981 to improve pollination and increase fruit set. Some aspects of the ecology of elaeidobius kamerunicus. Conservation leaders in africa call for a crackdown on. Pdf effectiveness of the oil palm pollinating weevil.
This book contains upwards of six hundred and fifty figures and descriptions of foreign insects, interspersed with remarks and reflections on their nature and properties. Within a year it had spread throughout the peninsula and was extremely abundant in all plantations. The higher level of insects was observed in full anthesis on male inflorescences whereas among female inflorescences it was noted at the first day of flowering. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis guineensis jacq. Cross pollination is the norm, nowadays achieved largely through the agency of the west african weevil, elaeidobius kamerunicus, which was introduced into southeast asian and other producing countries in the 1980s and which generally ensures a high rate of fruit set and the formation of large and compact bunches. Jun 01, 2015 elaeidobius kamerunicus faust coleoptera. The stem is cylindrical, up to 75 cm in diameter and covered with petiole bases in young palms, smooth in older trees 1012 years old.
Students and teachers can download ethiopia text books in pdf. Variation in populations of the introduced pollinating weevil elaeidobius kamerunicus coleoptera. Use this form to send a message to the editor of this post. Yann clough centre for environmental and climate research. Elaeis guineensis is a species of palm commonly just called oil palm khmer. In particular, sampling techniques for estimating the weevil population were developed and the effect of rat predation on the immature weevils was studied. After a careful quarantine and a study of its potential to become a pest of nontarget plants, the species elaeidobius kamerunicus faust was introduced into malaysia with impressive success syed et al. Freed of competition with other species of elaeidobius, it breeds in all parts of the male inflorescence and is equally common in all rainfall zones. Nematoda is described from oil palm flowers elaeis guineensis jacquin and from the under surface of the elytra of the oil palm weevil, elaeidobius kamerunicus faust coleoptera. Coleoptera and the productivity of oil palm, elaeis guineensis family. Biological and chemical factors associated with the. A detailed study on elaeidobius kamerunicus, the main pollinator of the african oil palm, has revealed a large carrying capacity for pollen grains due to different types of setae dhileepan, 1992.
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