Sandra Essays

Joseph Allencheril , and the Management for providing all the necessary facilities in carrying out the study. In a hived colony, about superfluous queen cells were observed. Eigenvalues and percentage of variance explained by the first four components in a PCA of Trigona iridipennis Smith workers in Kerala. Publish now – it’s free. Distribution of factor scores among stingless bee drones across various locations in Kerala.

Please use this identifier to cite or link to this item: We therefore conducted morphometric studies among workers and drones across 14 districts in Kerala with a view to characterize them. Table of tables Table 1. The bees found to construct the brood cell as cell cup base, half constructed and nearly constructed cell per day at the rate of Doctoral thesis PhD , University of Sussex. Under the molecular characterization in stingless bee, T. Morphometric characters considered for the analysis of worker and drone bees of stingless bees in Kerala:

Description of Trigona iridipennis Smith worker and their morphometric characteristics. They may be interpreted as nutritional, seasonal and climatic factors.

stingless bees thesis

A PCA was performed using a correlation matrix was performed on selected 16 characters which seems to be significant in the study. Morphometric characters considered for the analysis of worker and drone bees of stingless bees in Kerala: We thesos and gratefully indebted to our teachers, parents, siblings and friends who were there always for helping us in this project. We therefore conducted morphometric studies among workers and drones across 14 districts in Kerala with a view to characterize them.

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Description of the various habitat of Trigona iridipennis Smith drone and their characteristics.

Novel aspects of nest defence in stingless bees : Sussex Research Online

George Njarakunnel, respected Principal Dr. Doctoral thesis PhDUniversity of Sussex. Chapter 3 describes a remarkable behaviour in Partamona helleri, which crashes head-first when entering its nest.

A little is reported so far about the morphometric studies of the Trigona iridipennis Smith as across various districts of Kerala. In the case of the drone bees, highly significant differences were seen only for AL and ML Figure 2 and 3. Biology – Zoology Novel and innovative techniques in Me The components were decided using scree plot and fixed to 5 and 4 components in workers and drones respectively. Kerala state covers an area of 38, km2 with a population sfingless of per km2 and spread across 14 districts Figure 2.

Agrarian Studies Soil properties and enzymatic charact The samples were labelled according to the location and stored in airtight boxes until morphometric analysis were conducted. K Head of the Department, Biotechnology for the valuable suggestions, support and encouragements.

Stingless bees; Meliponiculture; Principal component analysis; Rotated component matrix. Map of Kerala showing various sample collection points marked as a star symbol during the study. Trigona iridipennis Smith are kept in India for centuries for the high thesiis value of honey as well as propolis and bee wax Rasmussen, ; Cortopassi-Laurino et al.

Firstly we thank God Almighty whose blessing were always with us and helped us to complete this research work successfully. Please use this identifier to cite or link to this item: Thesis Doctoral Schools and Departments: The investigations were carried out during at G. Even though numerical significance were observed in HL, PL and MdW but not able to prove their significance statistically. Despite of role in pollination and ecosystem services, honey bee population is drastically decreasing due to destruction of natural habitat, intensive agriculture, diseases and climate change et al.

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Little is known about the variations exist among them.

KrishiKosh (कृषिकोश)

The lowest AL was seen in Kasargod 1. Component plot in rotated space during principal component analysis among stingless bee drones. Pantnagar, Uttarakhand, India, on the characterization and behaviour of stingless bee, Tetragonula iridipennis Smith along with biochemical properties of its honey.

Person correlation analysis showed considerable correlation among various morphometric characters in worker and drone bees across Kerala.

Joseph Allencheriland the Management for providing all the necessary facilities in carrying out the study. ANNOVA of morphometric characters among workers and drones across various districts in Kerala showed difference in statistical significance among the two castes. The temperature inside the thewis was found to be 1.

stingless bees thesis

Site description of the selected farms D1-D9 across Kerala, India for collecting drone bees during