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G. Sbrenna - One of the best experts on this subject based on the ideXlab platform.
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Effects of fenoxycarb on the Italian termite species Kalotermes flavicollis and Reticulitermes lucifugus (Isoptera).
Parma :Dipartimento di Biologia Evolutiva e Funzionale, 2000Co-Authors: Maistrello Lara, E. Manfredini, A., Micciarelli Sbrenna, G. SbrennaAbstract:Groups of the two Italian termites Kalotermes flavicollis and Reticulitermes lucifugus were exposed to different concentrations of the Insect Growth Regulator fenoxycarb. Results showed a marked juvenile hormone analogue activity, since the substance induced, on both species, an abnormal appearance of intercastes. On K. flavicollis, fenoxycarb inhibited the differentiation to neotenic reproductives, but did not prevent larval moults. Caste unbalances induced by this IGR can cause a progressive weakening of termite colonies until extinction
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Behavioural differences between male and female replacement reproductives in Kalotermes flavicollis (Isoptera, Kalotermitidae)
Insectes Sociaux, 1999Co-Authors: Lara Maistrello, G. SbrennaAbstract:An ethogram type study was performed on representative colonies of Kalotermes flavicollis to investigate the behavioural repertoires of replacement king and queen. Our observations suggested a sex-based behavioural specialisation in the two reproductives, affecting colony organisation and equilibrium. Interesting differences were detected in overall activity of the two reproductives, with the male showing the greatest frequency of movements in the nest, vibratory acts, and the highest rate and range of social contacts. In addition to his importance for periodical insemination of the queen, the king might also play a basic role in the social structure and dynamic development of the colony, as a “mediator” in social interactions between the queen and the other colony members.
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Frequency of some behavioural patterns in colonies of Kalotermes flavicollis (Isoptera Kalotermitidae): the importance of social interactions and vibratory movements as mechanisms for social integration
Ethology Ecology & Evolution, 1996Co-Authors: Lara Maistrello, G. SbrennaAbstract:Behavioural repertories of individuals from different developmental stages and castes of the lower termite Kalotermes flavicollis were investigated by focal animal sampling performed on laboratory colonies. Our study focuses on those behavioural patterns used as means of communication in inter-individual transmission of information. Vibratory movements, especially those performed by nymphs, appear to communicate short-term colony needs through mechanicaltactile stimulation. Allogrooming patterns among colony members seems the most likely way to exchange messages through pheromone spreading, and the interactions with the reproductives emphasize the key role they assume in receiving and transmitting signals on which the regulation of social equilibrium is probably based.
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The electrophoretic mobilities of total protein systems in different castes of four termite species
Ethology Ecology & Evolution, 1994Co-Authors: M. Martinelli, G. SbrennaAbstract:The SDS-PAGE electrophoretic mobility of total proteins from homogenates of castes of two lower termite species (Kalotermes flavicollis and Reticulitermes lucifugus) and two upper ones (Nasutitermes sp. and Dicuspiditermes nemorosas) was studied. Results show that it is possible to obtain well-defined electrophoretic patterns which can be correlated with the morphogenesis of the caste in question during each caste development programme. The data obtained for the species K. flavicollis in which the largest number of castes was studied, lends weight to the hypothesis that it is possible to identify coding genes for single proteins which are specific for each developmental stage.
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Preliminary studies on electrophoretic protein patterns in castes of Kalotermes flavicollis (Fabr.) (Isoptera Kalotermitidae)
Ethology Ecology & Evolution, 1992Co-Authors: R. Gruppioni, G. SbrennaAbstract:Total proteins from different Kalotermes flavicollis castes were electrophoretically analyzed. Results reveal the presence of different proteins in terminal castes and in developmental stages. The ...
Andrea Luchetti - One of the best experts on this subject based on the ideXlab platform.
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Molecular systematics, biogeography, and colony fusion in the European dry-wood termites Kalotermes spp. (Blattodea, Termitoidae, Kalotermitidae).
Bulletin of entomological research, 2017Co-Authors: V. Scicchitano, Barbara Mantovani, Franck Dedeine, Andrea LuchettiAbstract:European dry-wood termites belong to the genus Kalotermes (Kalotermitidae), one of the two termite genera in Europe. Until the recent description of two new species, Kalotermes italicus in Italy and Kalotermes phoenicae in the eastern Mediterranean area, Kalotermes flavicollis was the only taxon known in this region. The presence of additional entities, suggested by morphological and physiological variation observed in K. flavicollis, was supported by molecular studies revealing four distinct genetic lineages: lineage A, K. flavicollis sensu strictu, from the Aegean area to Italy; lineage B, in Tuscany; lineage SC, in Sardinia and Corsica; lineage SF, in southern France. Lineages A and B may form mixed colonies, suggesting hybridization. To draw a more detailed picture of Kalotermes evolution and biogeography in Europe, we analyzed samples from previously unsampled areas, such as Spain and southern Italy, by means of the highly informative cox1/trnL/cox2 mitochondrial DNA marker. Overall, phylogenetic analyses confirmed previously identified lineages and taxa, but widened the distribution of the lineage SC to the mainland and of the lineage SF to Spain and Portugal. Results further provided evidence for the synonymy between lineage B and K. italicus. Species delimitation analysis suggested that the three K. flavicollis lineages, as well as K. italicus, can be separate taxa. Data also suggest a possible interspecific hybridization between K. italicus and both K. flavicollis lineages A and SC.
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Kflavicollis_msat_data+mtDNA_haplo
2016Co-Authors: Andrea Luchetti, Alessandro Velona, Franck Dedeine, Barbara MantovaniAbstract:Microsatellite dataset for the 11 colonies of Kalotermes flavicollis (Isoptera:Kalotermitidae) + corresponding mitochondrial DNA haplotype
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The Non-LTR Retrotransposon R2 in Termites (Insecta, Isoptera): Characterization and Dynamics
Journal of Molecular Evolution, 2011Co-Authors: Silvia Ghesini, Mario Marini, Andrea Luchetti, Barbara MantovaniAbstract:The full-length element of the non-LTR retrotransposon R2 is here characterized in three European isopteran species: the more primitive Kalotermes flavicollis (Kalotermitidae), including two highly divergent mitochondrial lineages, and the more derived Reticulitermes lucifugus and R. urbis (Rhinotermitidae). Partial 3′ sequences for R. grassei and R. balkanensis were also analyzed. The essential structural features of R2 elements are conserved in termites. Phylogenetic analysis revealed that termite elements belong to the same clade and that their phylogeny is fully compatible with the phylogeny of their host species. The study of the number and the frequency of R2 insertion variants in four R. urbis colonies suggests a greatly reduced, or completely absent, recent element activity.
Sbrenna G. - One of the best experts on this subject based on the ideXlab platform.
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Intercastes obtained in Kalotermes flavicollis and Reticulitermes lucifugus (Isoptera) by treatment with the IGR fenoxycarb.
Parma :Dipartimento di Biologia Evolutiva e Funzionale, 2002Co-Authors: Maistrello Lara, Micciarelli Sbrenna A., Sbrenna G.Abstract:Groups of the two Italian termites Kalotermes flavicollis and Reticulitermes lucifugus were exposed to different concentrations of the Insect Growth Regulator fenoxycarb. Results showed a marked juvenile hormone analogue activity, since the substance induced, on both species, an abnormal appearance of intercastes. SEM observations confirmed that fenoxycarb-induced individuals show morphological features intermediate between the ones of the initial-previous caste and the ones of soldiers. On K. flavicollis, fenoxycarb inhibited the differentiation to neotenic reproductives, but did not prevent larval moults. Caste unbalances induced by this IGR can cause a progressive weakening of termite colonies until extinction
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Andamento temporale dei comportamenti in Kalotermes flavicollis (Isoptera, Kalotermitidae)
place:Maratea, 1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Andamento temporale dei comportamenti in Kalotermes flavicollis (Isoptera, Kalotermitidae
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Behavioral modifications induced by a JHA on colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae)
place:Adelaide Australia, 1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Behavioral modifications induced by a JHA on colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae
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Behavioural profiles in laboratory colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae) with different social environments
1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Behavioural patterns of pseudergates, nymphs and replacement reproductives were observed in laboratory colonies of Kalotermes flavicollis with different social composition. The investigation revealed that in presence of the royal couple, pseudergates and nymphs behave similarly, acting as typical workers and confirmed the central role of the reproductives in receiving and transmitting signals which probably underlie the regulation of social equilibrium. The death of a reproductive, which occurred spontaneously in two pseudergate colonies, gave rise to a remarkable increase of activities, especially of social interactions among pseudergates
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Reproductives role in Kalotermes flavicollis society (Isoptera Kalotermitidae)
Parma :Dipartimento di Biologia Evolutiva e Funzionale, 1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Activities and social interactions of male and female termite replacement reproductives were compared in an ethogram type investigation performed on representative colonies of Kalotermes flavicollis. Our observations suggested a sex-based behavioural specialization between the two reproductives, with the male being the one to show the greatest frequency of movements in the nest, vibratory acts, and frequency and variety of social contacts. Apart from being important for the periodical insemination of the queen the king appears to hold a basic role in the social structure and dynamic development of the colony as a intermediary in social interactions between the queen and the other colony members
Rafael Ocete Rubio - One of the best experts on this subject based on the ideXlab platform.
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incidencia de Kalotermes flavicollis fabricius isoptera kalotermitidae en tres especies del arbolado urbano de sevilla
Boletín de sanidad vegetal. Plagas, 2004Co-Authors: Rafael Ocete Rubio, I Pradas, V Pavon, Maria Angeles Lopez Martinez, Pedro Torrent Chocarro, M NobleAbstract:Se ha realizado una evaluacion de la indicencia de la infestacion causada por Kalotermes flavicollis (Fabricius) (Isoptera, Kalotermitidae) en tres especies arboreas ornamentales de la ciudad de Sevilla, como son el platano de sombra, Platanus hybrida Brot. (Platanaceae); el ciruelo japones, Prunus cerasifera Ehrh. variedad pisardii Carriere (Rosaceae) y el parasol chino, Firmiana simplex (L.) Wight (Sterculiaceae). Los datos obtenidos muestran que esta termita constituye un importante problema sanitario de este arbolado urbano.
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distribucion estacional de los componentes de las colonias de Kalotermes flavicollis fabricius isoptera kalotermitidae en cepas del marco de jerez
Boletín de sanidad vegetal. Plagas, 2000Co-Authors: Maria Angeles Lopez Martinez, D Chi, Rafael Ocete RubioAbstract:Mediante la observacion del contenido de las distintas zonas del tronco, brazos y portainjerto de cepas de la variedad Palomino fino del Marco del Jerez, se ha seguido la migracion estacional de las distintas castas y estadios preimaginales de las colonias de Kalotermes flavicollis (Fabricius) (Isoptera, Kalotermitidae), que constituye un importante problema sanitario de los vinedos meridionales de Espana.
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caracterizacion del vuelo de los imagos sexuados de Kalotermes flavicollis fabr isoptera kalotemitidae en el marco del jerez
Boletín de sanidad vegetal. Plagas, 1998Co-Authors: M Lara, Rafael Ocete Rubio, Maria Angeles Lopez Martinez, Maria Jose Serrano AlbarranAbstract:LOPEZ, M. A.; OCETE, R.; LARA, M. y SERRANO, M. J., 1998: Caracterizacion del vuelo de los imagos sexuados de Kalotermes flavicollis Fabr. (Isoptera, Kalolermitidae) en el Marco del Jerez. Bol. San. Veg. Plagas, 24(2): 293-300. The use of sticky tramps showed that the autumnal rains were the main controling factor of the flight of sexual adults of Kalotermes flavicollis (Fabr.) (Isoptera, Kalotermitidae) which usually appears between September and November in Sherry vineyards (SW of Spain). On the other hand, the highest level of captures took place between 9 and 13 h (solar hour) and the highest effectivity was registered in those tramps which have their lower edge situated at 40 cm over the soil. According to the last cited fact, that kind of mass-trapping may be used as a physical control in order to reduce the implantation of new colonies of the termite, method which would need to be maked up with other sanitary practices pointed out in the present paper.
Maistrello Lara - One of the best experts on this subject based on the ideXlab platform.
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Intercastes obtained in Kalotermes flavicollis and Reticulitermes lucifugus (Isoptera) by treatment with the IGR fenoxycarb.
Parma :Dipartimento di Biologia Evolutiva e Funzionale, 2002Co-Authors: Maistrello Lara, Micciarelli Sbrenna A., Sbrenna G.Abstract:Groups of the two Italian termites Kalotermes flavicollis and Reticulitermes lucifugus were exposed to different concentrations of the Insect Growth Regulator fenoxycarb. Results showed a marked juvenile hormone analogue activity, since the substance induced, on both species, an abnormal appearance of intercastes. SEM observations confirmed that fenoxycarb-induced individuals show morphological features intermediate between the ones of the initial-previous caste and the ones of soldiers. On K. flavicollis, fenoxycarb inhibited the differentiation to neotenic reproductives, but did not prevent larval moults. Caste unbalances induced by this IGR can cause a progressive weakening of termite colonies until extinction
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Effects of fenoxycarb on the Italian termite species Kalotermes flavicollis and Reticulitermes lucifugus (Isoptera).
Parma :Dipartimento di Biologia Evolutiva e Funzionale, 2000Co-Authors: Maistrello Lara, E. Manfredini, A., Micciarelli Sbrenna, G. SbrennaAbstract:Groups of the two Italian termites Kalotermes flavicollis and Reticulitermes lucifugus were exposed to different concentrations of the Insect Growth Regulator fenoxycarb. Results showed a marked juvenile hormone analogue activity, since the substance induced, on both species, an abnormal appearance of intercastes. On K. flavicollis, fenoxycarb inhibited the differentiation to neotenic reproductives, but did not prevent larval moults. Caste unbalances induced by this IGR can cause a progressive weakening of termite colonies until extinction
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Andamento temporale dei comportamenti in Kalotermes flavicollis (Isoptera, Kalotermitidae)
place:Maratea, 1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Andamento temporale dei comportamenti in Kalotermes flavicollis (Isoptera, Kalotermitidae
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Behavioral modifications induced by a JHA on colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae)
place:Adelaide Australia, 1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Behavioral modifications induced by a JHA on colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae
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Behavioural profiles in laboratory colonies of Kalotermes flavicollis (Isoptera: Kalotermitidae) with different social environments
1998Co-Authors: Maistrello Lara, Sbrenna G.Abstract:Behavioural patterns of pseudergates, nymphs and replacement reproductives were observed in laboratory colonies of Kalotermes flavicollis with different social composition. The investigation revealed that in presence of the royal couple, pseudergates and nymphs behave similarly, acting as typical workers and confirmed the central role of the reproductives in receiving and transmitting signals which probably underlie the regulation of social equilibrium. The death of a reproductive, which occurred spontaneously in two pseudergate colonies, gave rise to a remarkable increase of activities, especially of social interactions among pseudergates
