| larval competition in weevils revena rubiginosa (coleoptera: curculionidae) preying on seeds of the palm syagrus romanzoffiana (arecaceae). | inter- and intraspecific local resource competition may lead to the selection of specific adaptive individual characteristics to overcome interference competition. a highly selective scenario is predictable for interference competition among seed preying weevil larvae that live in and feed upon a single host seed. this scenario is found in syagrus romanzoffiana palm seeds which are predated by revena rubiginosa (curculionidae) larvae. although multiple infestation of one seed by weevil larvae ca ... | 2005 | 15871001 |
| measurements of biogenic hydrocarbons and carbonyl compounds emitted by trees from temperate warm atlantic rainforest, brazil. | this study is part of a three-year project on biogenic volatile organic compound (voc) emissions from trees of the temperate warm atlantic rainforest found in the metropolitan area of sao paulo city (masp). no study of voc emission rates from plant species has been carried out in the temperate warm atlantic rainforest of brazil prior to this work. eleven species were selected (alchornea sidifolia, cupania oblongifolia, cecropia pachystachia, syagrus romanzoffiana, casearia sylvestris, machaerium ... | 2005 | 15877172 |
| alpha-glucosidase inhibitors from the seeds of syagrus romanzoffiana. | bioassay-guided fractionation against alpha-glucosidase resulted in isolation and characterization of eight active compounds from the etoh extract of the seeds of syagrus romanzoffiana. of these, seven are stilbenoids, and two of them, 13-hydroxykompasinol a (1) and scirpusin c (4), possess potent inhibitory activity against alpha-glucosidase type iv from bacillus stearothermophilus with the ic50 value of 6.5 and 4.9 microm, respectively. the in vivo assay on normal wistar rats using oral sucros ... | 2008 | 18221760 |
| host response of ornamental palms to rotylenchulus reniformis. | the responses of 20 species of ornamental palms and one cycad (cycas revoluta) to two populations of the reniform nematode, rotylenchulus reniformis, from southern florida were studied in two greenhouse experiments conducted in 1989-1991 and 1991-92. ornamental palms in pots were exposed to initial population densities of 400 and 1,500 r. reniformis/l00 cm(3) soil for 16 and 15 months, respectively. nematode reproduction occurred on acoelorrhaphe wrightii and washingtonia robusta, but not on the ... | 1994 | 19279956 |
| [syagrus romanzoffiana (arecaceae) seed utilization by ants in a secondary forest in south brazil]. | ants can nest in a wide variety of substracts. this paper shows syagrus romanzoffiana seed utilization by ants in an atlantic secondary forest. we report 29 seeds occupied by small-bodied ants, with 27 of them showing at least two ant development stages. although a large number of seeds were sampled, a low level of ant occupation was observed. | 2009 | 20098938 |
| permanent genetic resources added to molecular ecology resources database 1 june 2012-31 july 2012. | this article documents the addition of 96 microsatellite marker loci to the molecular ecology resources database. loci were developed for the following species: clarias batrachus, marmota himalayana, schizothorax richardsonii, sitophilus zeamais and syagrus romanzoffiana. these loci were cross-tested on the following species: clarias dussumeri, clarias gariepinus, heteropneustus fossilis, sitophilus granarius and sitophilus oryzae. | 2012 | 23006415 |
| a new species of callispa baly (coleoptera, chrysomelidae, cassidinae, callispini) infesting coconut palm ( cocos nucifera l.) in india. | callispa keram sp. n. infesting coconut palm (cocos nucifera l.) in kerala, india is described and illustrated. livistona chinensis r.br. and syagrus romanzoffiana (cham.) glassman are reported as additional host plants. | 2013 | 23653522 |
| wild edible plants used by the polish community in misiones, argentina. | we studied the cultural significance of wild edible plants for eastern european migrants who settled in rural subtropical areas of south america. in 50 interviews with polish migrants and their descendants in northern misiones, argentina, we recorded the use of 41 botanical species and two mushroom taxa. different cultural significance indices were applied and sociodemographic factors such as gender, age and origin were addressed. out of the ten most salient species, nine were fruits (eugenia un ... | 2017 | 26691861 |