A morphometric analysis of Apis cerana F and Apis nigrocincta Smith populations from Southeast Asia

Damus, Martin; Otis, Gard W.

doi:10.1051/apido:19970507

Cited by 47 publications

(55 citation statements)

References 6 publications

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“…This is attributable to the fact that Palawan is part of the Asian continental shelf and, from geological evidence, was probably connected to Borneo by way of a land-bridge during the Pleistocene (Everett 1889; cited in [9]). A close relationship between A. cerana from Palawan and the bees of Borneo, A. cerana indica, has been confirmed in a recent study [2,3], and fits well into this picture.…”

Section: Discussionsupporting

confidence: 74%

“…The separateness of these bees from other A. cerana groups has since been confirmed in a number of morphometric and molecular studies [2−5, 15, 16]. However, even the limited samples of Philippine bees up to now included in morphometric analyses made on A. cerana have suggested a great deal of morphometric variability among these bee populations [3,13].…”

Section: Discussionmentioning

confidence: 94%

“…The history of the colonization of the Philippines (except Palawan) by A. cerana is still obscure, and an issue of debate. More recent morphometric studies [3] on Philippine bees collected particularly in Mindanao have indicated a close relationship between the bees of Mindanao and those described from Sulawesi as A. nigrocinta [8], which was also present in a mtDNA study [16] …”

Section: Discussionmentioning

confidence: 99%

“…Mostly worker bees were sampled from feral colonies (90), and a few from managed hives (3). In some cases (8) foragers were collected from flowers, especially in areas where it was very hard to locate the bees' nests.…”

Section: Collection Of Bee Samplesmentioning

confidence: 99%

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Morphometric diversity of Apis cerana Fabr. within the Philippines

et al. 2000

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counterpart, A. mellifera L., the understanding of its taxonomy and biology is only in the beginning. Early taxonomists like Maa [11] had split up the eastern cavitynesting bees into 11 species and several subspecies. Based on groups generated by Abstract -The diversity of Apis cerana Fabr. in the Philippines was studied using morphometric methods. A total of 101 samples of A. cerana from feral and hived colonies, and foragers were collected throughout the Philippine archipelago. The 39 morphometric characters recommended by Ruttner and Ruttner et al. were measured. The data were statistically analyzed by means of factor analysis, discriminant analysis, and cluster analysis. The bees from Palawan were unequivocally distinct and separate from the other Philippine samples. The bees from the other Philippine islands still showed a high degree of variation. The bees of Luzon differed clearly from those of Visayas and Mindanao. Within Luzon, the bees from the highland differed clearly from those in the lowland and were regarded as separate groups. Bees from Visayas and Mindanao were still very variable and showed potential for further sub-structuring. The present analysis could not distinguish whether the difference between Luzon and Visayas-Mindanao was based on a north-south clinal structure, or on distinct groups. INTRODUCTION Apis ceranaApis cerana / Philippines / morphometry / biogeography

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Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Collection Of Bee Samplesmentioning

confidence: 99%

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Morphometric diversity of Apis cerana Fabr. within the Philippines

et al. 2000

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“…Morphometrics has been widely used to classify honeybee ecotypes (Alpatov, 1929;Brückner, 1976;Louis and Lefebvre, 1968a, b;Daly, 1985;Ruttner, 1988;Damus and Otis, 1997;Kauhausen-Keller et al, 1997;Hepburn and Radloff, 1998;Radloff et al, 2002), in particular the polymorphy of wing patterns provides here one of the most informative set of characters (Ruttner, 1988). Although phenotypic characteristics are only an indirect and biased measure of genetic diversity (Cornuet and Garnery, 1991), they have been shown to be suitable for differentiating taxa at the macrolevel (Ruttner, 1988;Hepburn and Radloff, 1998;Damus and Otis, 1997).…”

Section: Introductionmentioning

confidence: 99%

Individuality of wing patterning in Giant honey bees (Apis laboriosa)

Kastberger

Radloff

Kranner³

2003

Apidologie

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-We investigated whether individual worker bees of a single Apis laboriosa colony can be reidentified by their wing patterns alone. In a sample of 183 bees we pre-selected 100 workers belonging to 12 intra-colonial patrilines and re-identified them by 25 size-free wing characters. Re-identification was carried out by Self Organizing Map (SOM) reclassification and conventional discriminant analysis (DA) using the protocols of recognition (data for training and testing the model are equal or slightly modified by white noise), and prediction (test data are unknown to the model). SOM recognition of wing shaping was found to be more robust than that resulting from DA. If the test data were altered by white noise, SOM recognition success was 100% within a range of 3% modification which corresponded to the overall measurement error; under these conditions DA success was less than 40%. The SOM prediction capacity was tested using four test-training data ratios and reached 90% under a two-step reclassification protocol.individuality / wing pattern / SOM re-classification / Giant honeybee / Apis laboriosa

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