Acoustic Communication and Mating Behaviour in the Muellerianella Complex (Homoptera - Delphacidae)

Behaviour ◽  
1985 ◽  
Vol 94 (1-2) ◽  
pp. 183-201 ◽  
Author(s):  
S. Drosopoulos
Keyword(s):  
Mating Behavior ◽  
Acoustic Communication ◽  
Parental Species ◽  
Mating Behaviour ◽  
Interspecific Crosses ◽  
Bisexual Species ◽  
Duration Of Copulation ◽  
Isolating Mechanisms ◽  
Copulation Behavior ◽  
Biological Differences

AbstractSome data on acoustic communication and mating behavior of two biparentally reproducing species and the clonally reproducing pseudogamous "species" of the genus Muellerianella are reported. Although bioacoustic differences were found in the calling songs between the species, these did not prevent pairforming. Also, differences in mating behavior, such as pre-copulation behavior, courtship activities, frequency and duration of copulation were not sufficient to prevent successful hybridization between both the two biparentally reproducing species and between each of these two species and the pseudogamous "species". The data reported here are related to other biological differences reported previously. According to these data there is some evidence that differences in acoustic communication and mating behavior between the two species are established by ecological influences which in turn have established analogous physiological requirements. These differences are rather weak isolating mechanisms. Regarding the behavioral relation of the pseudogamous species with males of the two parental species it was found that these females behave exactly as the females of M. fairmairei with which they coexist in the field. In interspecific crosses mechanical barriers to copulation are more efficient than courtship differences. Finally it is assumed that pseudogamy is a strong isolation mechanism between the not yet fully genetically differentiated bisexual species of Muellerianella.

scholarly journals Notes on mating behaviour and a possible new host plant for Megacyllene angulata (Fabricius, 1775) (Cerambycidae, Coleoptera)

2020 ◽  
Vol 60 ◽  
pp. e20206004
Author(s):  
Francisco Eriberto De Lima Nascimento ◽  
Diego Matheus De Mello Mendes ◽  
Alberto Moreira da Silva Neto
Keyword(s):  
Host Plant ◽  
Mating Behavior ◽  
Mating Behaviour ◽  
New Host

The mating behavior of M. angulata (Fabricius, 1775) is described, illustrated and discussed. Additionally, we also comment on the possible new host plant of this species based on two plants (Luehea cymulosa Spruce ex Benth. (Malvaceae) and Doliocarpus dentatus (Aubl.) Standl (Dilleniaceae) on which copulation occurs.

Mating behavior and acoustic communication of the long-legged cricket Endecous (Notendecous) onthophagus (Berg, 1891) from Southern Brazil (Orthoptera: Grylloidea: Phalangopsidae)

Zootaxa ◽  
2020 ◽  
Vol 4743 (3) ◽  
pp. 427-437 ◽  
Author(s):  
RIULER CORRÊA ACOSTA ◽  
VITOR FALCHI TIMM ◽  
NEUCIR SZINWELSKI ◽  
MARIA KÁTIA MATIOTTI DA COSTA ◽  
EDISON ZEFA
Keyword(s):  
Mating System ◽  
Mating Behavior ◽  
Acoustic Communication ◽  
Copulatory Behavior ◽  
Southern Brazil ◽  
Acoustic Parameters ◽  
Behavioral Diversity ◽  
Guarding Behavior ◽  
Spermatophore Transfer ◽  
Copulatory Position

The courtship, copulation and post-copulatory behavior, as well as acoustic communication of the Neotropical cricket Endecous (Notendecous) onthophagus is described under laboratory conditions and compared with other phalangopsids whose mating system was studied so far. We found that E. onthophagus present predictable mating sequences including seven events: (1) prolonged courtship; (2) male spermatophore extrusion during courtship; (3) female-above copulatory position; (4) prolonged copulation; (5) male forewings flipped over his head, exposing metanotal region along copulation; (6) copulation without spermatophore transfer; and (7) absence of guarding behavior. We suggest these events (1 to 7) as a behavioral line shared by phalangopsids, and we highlight variations that reflect the behavioral diversity of these crickets. The males of E. onthophagus produce the calling song (chirps) to attract females to mate, and also stridulates intermittently during the entire courtship period with distinct acoustic parameters during the stages of pre- and post-spermatophore extrusion. 

Biosystematics of the Cotesia flavipes complex (Hymenoptera: Braconidae): interspecific hybridization, sex pheromone and mating behaviour studies

1995 ◽  
Vol 85 (3) ◽  
pp. 379-386 ◽  
Author(s):  
Susan W. Kimani ◽  
William A. Overholt
Keyword(s):  
Sex Pheromone ◽  
Mating Behaviour ◽  
Cotesia Flavipes ◽  
Large Field ◽  
Interspecific Crosses ◽  
Putative Species ◽  
Wing Fanning ◽  
Opposite Sex ◽  
Males And Females ◽  
Courtship Signals

AbstractMating behaviour, sex pheromone attraction and reciprocal breeding of Cotesia flavipes Cameron (Hymenoptera: Braconidae), C. sesamiae (Cameron) and C. chilonis (Matsumura) were studied. These three putative species comprise the Cotesia flavipes complex. Wing fanning and antennal vibration were the initial courtship signals from the males. Antennal stroking by the male was also an important contact signal and a prerequisite to successful mounting and copulation. Interspecific crosses revealed that males of C. flavipes exhibited courtship behaviour, and mounted and copulated with females of C. chilonis and C. sesamiae; the males transferred sperm but progeny from these crosses did not include females. Males of C. sesamiae copulated with females of C. chilonis and the progeny included viable females. The progeny backcrosses of the hybrid females to male parents also included viable females. Sex pheromone experiments were conducted in a Y-tube olfactometer and in large field cages. Males and females of C. flavipes perceived and responded to odours emitted by the opposite sex. There was no significant response to odours from conspecific individuals of the same sex in any of the three species. Pheromone bioassays in field cages using sticky traps baited with live virgin C. flavipes females attracted conspecific males.

scholarly journals Spawning behaviour and mating success in hybrids of silver bream (Blicca bjoerkna L.) and rudd (Scardinius erythrophthalmus L.) in an experimental environment

2013 ◽  
Vol 63 (2) ◽  
pp. 119-130 ◽  
Author(s):  
Billy Nzau Matondo ◽  
Michaël Ovidio ◽  
Jean Claude Philippart ◽  
Pascal Poncin
Keyword(s):  
Food Consumption ◽  
Mating Success ◽  
Parental Species ◽  
Mating Behaviour ◽  
Survival Rates ◽  
Spawning Ground ◽  
Scardinius Erythrophthalmus ◽  
Experimental Fish ◽  
Spawning Behaviour ◽  
Dry Food

The egg-release, mating, courting and aggressive acts for the spawning behaviour as well as the survival rates after spawning at stages of eyed embryos, viable hatchlings, and larvae to dry food consumption for the mating success were studied in cultured silver bream Blicca bjoerkna × rudd Scardinius erythrophthalmus hybrids at their first sexual maturity. Experiments were conducted in experimental environments simulating natural reproductive conditions of the parental species. Spawning behaviour was analysed over 1 day from 8.00 to 18.00 hours using a remote-controlled video. Mating success was assessed from eggs and hatched embryos collected on the spawning ground. The results showed that these hybrids exhibited all the reproductive behaviours of the parental species with significantly more courtship than mating. Each egg-release act was accompanied by mating behaviour, involving all the experimental males. A surprising aggressive behaviour was observed in one male which attacked all other experimental fish. Successful mating resulted in the presence of fertilized eggs, the production of hatched embryos in experiments, and the survival of larvae at the dry food consumption stage. However, the low viable hatchling rate observed could indicate a very low chance of survival for these hybrids in rivers in which the occurrence of post-F1 individuals may be more possible by backcrossing.

Mating behaviour of males ofGlossina pallidipesAusten (Diptera: Glonidae)

1979 ◽  
Vol 69 (4) ◽  
pp. 573-588 ◽  
Author(s):  
T. G. T. Jaenson
Keyword(s):  
Fat Body ◽  
Mating Behaviour ◽  
General Relation ◽  
Glossina Pallidipes ◽  
Phase Duration ◽  
Laboratory Rearing ◽  
Moving Vehicle ◽  
Duration Of Copulation ◽  
Low Activity ◽  
Strain Dependent

AbstractThe sexual bahaviour of males ofGlossina pallidipesAust. from the kibwezi Forest Lambwe Valley in Kenya was investigated in the laboratory. Most observatations were on the Kibwezi strain. Three copulatory phases were recorginsed, marked by male courtship, female buzzing, and male jerking with ejaculation. Maturation of copulatory brhaviour occured in advance of ability to inseminate. All males copulated by day 10 and all copulating males inseminated by day 12. Insemination took place only if the jerking phase was present, but neither the occurence of this phase nor the ejection of a spermatophore proved that insemination had taken place. The degree of insemination showed no general relation to age in previously unmated males. The jerking phase was generally shorter in non-inseminating than in inseminating copulations, although duration of copulation showed no obvious relation to the frequency and degree of insemination. The duration of copulation decreased with increasing age of previously unmated males between 10 and 30 days old. Copulation duration was strain-specific while the jerking phase duration was not, suggesting that the length of the pretransmission period (courtship phase plus female buzzing phase) is strain-dependent. In Kibwezi Forest, sexually appetitive (head-down) behaviour among males caught off a moving vehicle was, in geenral, not present among teneral and old males. Head-up and head-down males had small and large amouns of abdominal fat-body, respectively, and both had little gut content. Head-down males had comparatively low activity at dawn and dusk and relatively high middaly activity. The findigs are discussed in relation to the laboratory rearing ofG. pallidipes.

scholarly journals Acoustic communication in the pear psyllid Cacopsylla pyri L. (Hemiptera: Psyllidae)

2015 ◽  
Author(s):  
Astrid Eben ◽  
Roland Mühlethaler ◽  
Jürgen Gross ◽  
Hannelore Hoch
Keyword(s):  
Mate Choice ◽  
Acoustic Communication ◽  
Mating Behaviour ◽  
Acoustic Signals ◽  
Pest Species ◽  
Mate Finding ◽  
Cacopsylla Pyri ◽  
Substrate Vibrations

Intraspecific acoustic communication via substrate vibrations is common in Hemiptera. Pear psyllids are economically important as vectors of pear decline phytoplasmas. Their mating behaviour has not been previously studied. We recorded the first acoustic signals emitted by male C. pyri. Further studies will clarifiy the importance of these signals for mate finding and mate choice in this pest species.

scholarly journals Genotypic similarities among the parthenogenetic Darevskia rock lizards with different hybrid origins

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
David Tarkhnishvili ◽  
Alexey Yanchukov ◽  
Mehmet Kürşat Şahin ◽  
Mariam Gabelaia ◽  
Marine Murtskhvaladze ◽  
...  
Keyword(s):  
Direct Evidence ◽  
Parental Species ◽  
Geographic Range ◽  
Gene Exchange ◽  
Mtdna Sequences ◽  
Bisexual Species ◽  
Multiple Loci ◽  
Hybridization Event ◽  
Parthenogenetic Reproduction ◽  
Rescue Mechanism

Abstract Background The majority of parthenogenetic vertebrates derive from hybridization between sexually reproducing species, but the exact number of hybridization events ancestral to currently extant clonal lineages is difficult to determine. Usually, we do not know whether the parental species are able to contribute their genes to the parthenogenetic vertebrate lineages after the initial hybridization. In this paper, we address the hypothesis, whether some genotypes of seven phenotypically distinct parthenogenetic rock lizards (genus Darevskia) could have resulted from back-crosses of parthenogens with their presumed parental species. We also tried to identify, as precise as possible, the ancestral populations of all seven parthenogens. Results We analysed partial mtDNA sequences and microsatellite genotypes of all seven parthenogens and their presumed ansectral species, sampled across the entire geographic range of parthenogenesis in this group. Our results confirm the previous designation of the parental species, but further specify the maternal populations that are likely ancestral to different parthenogenetic lineages. Contrary to the expectation of independent hybrid origins of the unisexual taxa, we found that genotypes at multiple loci were shared frequently between different parthenogenetic species. The highest proportions of shared genotypes were detected between (i) D. sapphirina and D. bendimahiensis and (ii) D. dahli and D. armeniaca, and less often between other parthenogens. In case (ii), genotypes at the remaining loci were notably distinct. Conclusions We suggest that both observations (i-ii) can be explained by two parthenogenetic forms tracing their origin to a single initial hybridization event. In case (ii), however, occasional gene exchange between the unisexual and the parental bisexual species could have taken place after the onset of parthenogenetic reproduction. Indeed, backcrossed polyploid hybrids are relatively frequent in Darevskia, although no direct evidence of recent gene flow has been previously documented. Our results further suggest that parthenogens are losing heterozygosity as a result of allelic conversion, hence their fitness is expected to decline over time as genetic diversity declines. Backcrosses with the parental species could be a rescue mechanism which might prevent this decline, and therefore increase the persistance of unisexual forms.

Mating interactions of Schistosoma haematobium and S. intercalatum with their hybrid offspring

Parasitology ◽  
2003 ◽  
Vol 126 (4) ◽  
pp. 327-338 ◽  
Author(s):  
B. L. WEBSTER ◽  
V. R. SOUTHGATE
Keyword(s):  
Schistosoma Haematobium ◽  
Parental Species ◽  
Mating Behaviour ◽  
Electrophoretic Analysis ◽  
Hybrid Analysis ◽  
Epidemiological Changes ◽  
Female Hybrid ◽  
Glucose 6 Phosphate Dehydrogenase ◽  
Haenszel Test ◽  
Better Than

Experiments were designed to study the mating behaviour between the Schistosoma haematobium [male ]×S. intercalatum [female] hybrid and the 2 parental species S. haematobium and S. intercalatum. Individual worms were identified by electrophoretic analysis of glucose-6-phosphate dehydrogenase, which was characteristic for each isolate. Analysis of the data obtained showed that both heterospecific and homospecific pairs formed between the hybrids and S. haematobium and S. intercalatum. S. haematobium and the hybrid are better than S. intercalatum in forming pairs, and S. haematobium showed a greater homospecific mate preference compared with the hybrid. Analysis of the data using the Mantel-Haenszel test suggests that mating competition does exist between the schistosomes, with the hybrid being dominant over both the parental species and S. haematobium being dominant over S. intercalatum. The hybrid males showed a greater ability than S. intercalatum and S. haematobium males in taking away S. haematobium and S. intercalatum females from their homospecific males when introduced into a pre-established S. haematobium or S. intercalatum infection. They were able to take females from S. intercalatum homospecific pairs more easily compared with females from S. haematobium homospecific pairs. The significance of the results is discussed in relation to the epidemiological changes of schistosomiasis in Cameroon, where hybridization between S. haematobium and S. intercalatum has taken place, with S. haematobium and the hybrid managing to replace the endemic S. intercalatum over the last 30 years.

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