Daddy Longlegs and Harvestmen learn more about names for this taxon. Like ticks and mites, harvestmen have evolved a tight connection between the two body sections that other Arachnids have. What is a biological classification? Alternative Titles: Opiliones, daddy long legs, harvestman. Cannot be regenerated, as it can in certain other types of insects, including many species of spiders.
• • • • • • • • • • • • • • • • Award Abstract #0236871 Systematics, Biogeography and Evolutionary Radiations of the Cyphophthalmi (Arachnida, Opiliones) NSF Org: Initial Amendment Date: December 23, 2002 Latest Amendment Date: December 23, 2002 Award Number: 0236871 Award Instrument: Standard Grant Program Manager: Patrick S. Herendeen DEB Division Of Environmental Biology BIO Direct For Biological Sciences Start Date: March 1, 2003 End Date: February 28, 2007 (Estimated) Awarded Amount to Date: $299,809.00 Investigator(s): Gonzalo Giribet ggiribet@g.harvard.edu (Principal Investigator) Sponsor: Harvard University 1033 MASSACHUSETTS AVE Cambridge, MA (617)495-5501 NSF Program(s): PHYLOGENETIC SYSTEMATICS Program Reference Code(s): 9169, EGCH Program Element Code(s): 1171 ABSTRACT Cyphophthalmi constitutes a suborder of the arachnid order Opiliones (daddy-long-legs). Of ancient origin and widespread distribution, they live in the leaf litter of undisturbed temperate to tropical humid forests. Cyphophthalmids have been found in all continents, except Antarctica, and in most islands of continental origin, such as New Zealand, New Caledonia, Sumatra, and Madagascar. Many of the places they inhabit qualify as biodiversity hotspots, areas collectively comprising only 1.4% of the land surface area of the Earth and recommended for preferential conservation policies for having high diversity.
Today i want to share a great Music Video that name is Police Chorer Preme Poreche - Challenge 2 (2012) Music Video Download| Mobile Users. Today i want to share a great Bangla Music video that name is Latin - Boss (2013) 720p HD Music Video Download. Today i want to share a great MP3 Song that name is Gobhir Joler Fish - Khoka 420 (2013) Single Mp3 Track Download. Today i want to share a great Mp3 Music Album that name is Three Days Grace Transit of Venus 2012 Album Mp3 songs Download.
Due to their localized distribution and scant dispersal ability, cyphophthalmids have been chosen as a model to study evolutionary radiations in islands of continental origin, biogeography, and potential issues of conservation biology. To do so, the taxonomy and evolutionary relationships among its species need to be worked out. We will use scanning electron microscopy to study the morphology of the cyphophthalmids and will generate lists of characters to be analyzed with standard phylogenetic algorithms. Other specimens will be used for genetic studies in order to generate DNA sequence data also to be analyzed phylogenetically. Both sets of information (morphology and DNA) will be used to propose the evolutionary relationships of the members of the group and to establish a classification.
The evolutionary trees will also aid studies of biogeographic patterns and earth history. Evolutionary analyses will be aided with the use of software written to work in parallel on a large multiprocessor computer cluster. Extensive field work in New Zealand, South Africa, Madagascar, tropical West Africa and southeast Asia is required to obtain material suitable for laboratory work and to document undescribed diversity. Systematics, biogeography, and the study of evolutionary radiations have contributed to a better understanding of the patterns observed in nature.
Optimizing the knowledge of diversity across geographic areas, cladogenesis, and speciation may benefit from the use of model systems. The potential use of Cyphophthalmi as a new model in evolutionary biology has driven a dual study of the higher systematics of the group and the exploration of one of their most spectacular adaptive radiations, the one undergone in New Zealand. The research will develop a new model system to integrate phylogenetic and biogeographic patterns with evolutionary studies of explosive radiations, and will form the basis for future studies on biodiversity estimates and conservation biology.