Faust, 1898 a genus closely related to anchylorhynchus franz, 2006 of different sizespresumably, different instarsand all of them seemed to have triangular mandibles. Within a year it had spread throughout the peninsula and was extremely abundant in all plantations. 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. In malaysia, the main pollinator is thrips hawaiiensis syed, 1979. Variation in populations of the introduced pollinating weevil elaeidobius kamerunicus coleoptera. 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. Ecology, epidemiology, and evolution of parasitism in daphnia, by dieter ebert illustrated html and pdf at nih filed under. The most immediate derelomine ancestor likely had a special association with the inflorescences of palms arecaceae involving pollination and oviposition into dispensable male flowers.
The larval stage suffered the highest mortality 60% and the mean total generation mortality was approximately 94%. Principles of field biology and ecology new york et al mcgrawhill, 1958, by allen h. Bibliography on tapirus bairdii, mesoamerican tapir species. The effects of elaeidobius kamerunicus faust on rat control programmes of oil palm estates in malaysia porim occasional paper wahid, mohd. The stem is cylindrical, up to 75 cm in diameter and covered with petiole bases in young palms, smooth in older trees 1012 years. 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. Biology of elaeidobius kamerunicus and elaeidobius. 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. Tapirus bairdii, mesoamerican tapir species mexico, guatemala, belize, etc the tapir is both nocturnal and diurnal, terrestrial.
This page was last edited on 16 january 2020, at 04. Similar alpha and beta diversity changes in tropical ant communities, comparing savannas and rainforests in brazil and indonesia. 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. 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.
Curculionidae, with a synopsis of the family cylindrocorporidae and establishment of longibuccidae n. Pollination activity of elaeidobius kamerunicus coleoptera. Dynamics in insect populations change according to palm species and weather conditions. Pdf effectiveness of the oil palm pollinating weevil. Some aspects of the ecology of elaeidobius kamerunicus. We have observed larvae of elaeidobius kamerunicus j. The two volumes of the myriapoda fill that gap with an updated. 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. Ethiopia text books pdf download grade 9, 10, 11 and 12. Curculionidae, main pollinators of oil palm in west africa. Effectiveness of the oil palm pollinating weevil, elaeidobius. 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.
This unique book introduces the biological and ecological basis of the production process in water, and the biology of cultured species. The oil palm pollinating weevil, elaeidobius kamerunicus in. The government aimed to provide each pupil with a textbook but the reality was a severe shortage of textbooks and other teaching materials. Conservation leaders in africa call for a crackdown on biopiracy. 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. Ethiopia ministry of education moe provides textbooks for all grade class in ethiopia. Text is available under the creative commons attributionsharealike license. Pollination in the oil palms elaeis guineensis e oleifera and. 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. Elaeis guineensis is a species of palm commonly just called oil palm khmer. 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. Yield of fresh fruit bunches has increased following the introduction.
It bridges the gap between research data and aquaculture techniques, and covers problems arising in aquaculture production, such as filtering molluscs. In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. Full text of british journal of entomology and natural. Curculionidae main pollinators of oil palm in west africa article february 2011 with 297 reads how we measure reads. Curculionidae and its impact on fruitset of oil palm elaeis guineensis in india. Banner image of an oil palm weevil elaeidobius kamerunicus by ken walker via wikimedia commons cc 3. 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. It is native to west and southwest africa, specifically the area between angola and the gambia. Conservation leaders in africa call for a crackdown on. Palms 2010, biology of the palm family abstracts books. Cross pollination an overview sciencedirect topics. 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.
Modern humans200,000 years insects350 million years 100,000 different species live in north america. Biology of elaeidobius kamerunicus and elaeidobius plagiatus. 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. Penyerbukan oleh serangga elaeidobius kamerunicus coleoptera. Diurnal variation in the population of elaeidobius kamerunicus on the anthesising male. 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. Biology of elaeidobius kamerunicus and elaeidobius plagiatus coleoptera. Myriapods are the only major zoological group for which a modern encyclopedic treatment has never been produced.
Corley and tinker, 2003, although it is not a very efficient pollinator. 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. Other weevils belonging to subfamilies such as dryophthorinae syn. 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. Coleoptera and the productivity of oil palm, elaeis guineensis family. The occurance of oil palm weevil, elaeidobius kamerunicus. Textbook of environmental biology covers a wide range of topics. The occurance of oil palm weevil, elaeidobius kamerunicus order. Some aspects of the ecology of elaeidobius kamerunicus faust. Curculionoidea on oil palm on hainan island english yue, jianjun yan, zhen bai, cheng chen, zetan. Entomology the study of insects dominant groups of animals on earth today life on earth. Curculionidae main pollinators of oil palm in west africa. 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. They spend almost 90% of their waking time feeding on grass and fruits.
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 article february 2011 with 297 reads how we. Pollination ecology and fruiting behavior in a monoecious species, jatropha curcas l. Mar 21, 2011 myriapods are the only major zoological group for which a modern encyclopedic treatment has never been produced. The book also deals with biodiversity at the global, national and local levels as well as presents pollution case studies and disaster management. In the studies reported, its net reproductive rate per generation, intrinsic. The oil palm pollinating weevil, elaeidobius kamerunicus.
Yann clough centre for environmental and climate research. Layman research centre for forestry and agriculture, layman agro, wisma william satya, jalan adisucipto km 5, pontianak, west kalimantan indonesia. Elaeidobius kameronicus, elaeidobius subvittatus and mystrops costaricensis are the insects most commonly associated with oil palm inflorescences. The effects of elaeidobius kamerunicus faust on rat control programmes of oil palm estates in malaysia porim occasional paper. Use this form to send a message to the editor of this post. International symposium 57 may 2010, montpellier, france. Curculionoidea is identified as the most efficient insect pollinator of oil palm syed 1979. The intrinsic rate of natural increase, generation time, net reproductive rate. Thrips hawaiiensis an overview sciencedirect topics. The effects of elaeidobius kamerunicus faust on rat. Students and teachers can download ethiopia text books in pdf. Full text of british journal of entomology and natural history.
The gregarines, isabelle desportes, isbn 9004256024, 9789004256026 treatise on zoology. Notes on the biology of the slider, trachemys scripta elegans reptilia. Jun 01, 2015 elaeidobius kamerunicus faust coleoptera. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis guineensis jacq. Entomology janet spencer extension agent, anr isle of wight county.
In particular, sampling techniques for estimating the weevil population were developed and the effect of rat predation on the immature weevils was studied. Biological and chemical factors associated with the. Rhynchophorinae and baridinae use palms as hosts for their brood and are. The weevil elaeidobius kamerunicus was introduced into malaysia in 1981 to improve pollination and increase fruit set. 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.
Oct, 2017 banner image of an oil palm weevil elaeidobius kamerunicus by ken walker via wikimedia commons cc 3. 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. Emydidae, inhabiting manmade cattle ponds in west texas from. Pollination in the oil palms elaeis guineensis e oleifera. Weevil population density varies between localities and times of the year depending on certain extrinsic and intrinsic factors.