Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 25 for “"mating behaviour"”.
-
Studies of the mechanisms involved in host finding and mating behaviour of the African coffee white stem borer, Monochamus leuconotus (pascoe) (Cleoptera: Cerambycidae)
… objectives of this work were to investigate the mating behaviour in order to look for evidence of the existence of chemical interactions between conspecific beetles and host plants. Mating behaviour and daily activity patterns of adult M. leuconotus were characterised under laboratory and …
-
The effect of gregarine parasite infections, age, and diet on calling song structure and mating behaviour in the Texas field cricket, Gryllus integer
… parasites, age, and diet have on the calling and mating behaviour of the male Texas field cricket, Gryllus integer. Male calling songs were recorded in the laboratory using a Digital Signal Processing Network. The song parameters measured were: pulse rate, pulse width, burst duration, pulses per …
-
Biologia reprodutiva e desenvolvimento dos filhotes de cágado amarelo Acanthochelys radiolata (Mikan, 1820) em cativeiro (Reptilia: Testudines: Chelidae)
To determine the mating period, posture, egg incubation and hatchling of the young of Acanthochelys radiolata, six males and ten females from several regions of the State of Rio de Janeiro were observed in a stand at the Fundação Jardim Zoológico da Cidade do Rio de Janeiro (RIOZOO). Daily …
-
Chemical communication and its ecological consequence in the Lysmata shrimp
… antennules. Distance (soluble)pheromone mediates mating behaviour of some decapod crustaceans. Contact pheromone (an insoluble coating on the body surface) has been proposed but not confirmed to be used by male decapod crustaceans to detect females. Here we report for the first time the …
-
Studies on the biology of the Indo-Pacific sandy shore crab, Matuta lunaris Forskål (Brachyura: Calappidae)
… activity in terms of gamete production, mating behaviour and brood incubation was continuous throughout the year with marked asynchrony between individuals and no apparent seasonality. The mating behaviour involves a prolonged precopulatory grasping between a postpuberty male and a …
-
Isolation and characterization of the female sex pheromone of the sugar beet cyst nematode, heterodera schachtii, and an analysis of male precopulatory behaviour /
… a major agricultural pest. The disruption of the mating behaviour of this plant parasite in the field may provide a means of biological control, and a subsequent increase in crop yield. The H. schachtii female sex pheromone, which attracts homospecific males, was collected in an aqueous medium and …
-
Male Mating Success in Lemur catta
… rank of males, number of males present during mating and harassment and interruption of mating were each examined to see how they impact male mating success. This study was conducted on four groups of ring-tailed lemur (Lemur catta) at Berenty Reserve, Madagascar, with data collected over three …
-
DEVELOPMENT OF THE STERILE INSECT TECHNIQUE FOR THE INTEGRATED MANAGEMENT OF THE BROWN MARMORATED STINK BUG HALYOMORPHA HALYS STÅL (HEMIPTERA: PENTATOMIDAE): BASIC REQUIREMENTS AND NEW KNOWLEDGE ACQUISITIONS TO SET UP THE NEW TOOL
… exploiting the natural phenomenon ruled behaviour of aggregation of BMSB in preparation for overwintering. The captures of the new pheromone traps were compared with those of identically baited sticky panels through daily services lasting 2 weeks. Following winter diapause, the collected …
-
Assessing species-specific reproductive variation to inform assisted reproductive technologies for Canadian snakes
… are increasingly incorporated into conservation mating programs for species-at-risk. Species-specific insights on reproductive biology, including seasonal variation and endocrine function, improve ART outcomes. Despite representation in many zoological collections, snakes are underrepresented in …
-
Experimental studies on the reproductive biology of the Waterstrider, Gerris buenoi (Heteroptera: Gerridae)
… and reproductive rate advances its onset. The mating behaviour of G. buenoi was studied with a series of laboratory experiments and field observations. Mating is multiple, females are reluctant, males persistent and mating consists of a period of copulation followed by a guarding phase. Mating …
-
Population genomics and domestication of the Black Soldier Fly (Hermetia illucens L.)
… line to explore the role of *yellow* in mating behaviour in this novel system. This work combines genetic, phenotypic, behavioural and experimental evolution studies to lay the foundation for the advancement of *Hermetia illucens* as a globally important agricultural system.
-
An assessment of endocrine disrupting potential of a New Zealand pulp and paper mill effluent using rainbow trout Oncorhynchus mykiss and mosquitofish Gambusia affinis
… response. In all experiments, male mating behaviour was observed in the masculinised female mosquitofish. I concluded that a significant species difference regarding sensitivity to reproductive-endocrine modulating compounds occurred following exposure to a mixed TMP/BKM effluent. In …
-
Entomopathogen based autodissemination for the control of plodia interpunctella (Hübner): an examination of the critical components
… retention, horizontal transmission and effect on mating of two electrostatic entomopathogen delivery powders (Entomag™ and Entostat™) was made to evaluate their potential as a component of an autodissemination method for the control of P. interpunctella. Both powders were shown to have some …
-
Life history and physiological ecology of the lizard, Cordylus Giganteus
… consistent with spermiogenesis in autumn and mating behaviour in spring. C. giganteus feeds during 8 months of the year and prefer Coleoptera as prey. Fat bodies are utilized for winter maintenance and reproduction. Hatchlings grow 20-30mm during the first year and maximum growth rates occur …
-
Causes and consequences of inbreeding in the banded mongoose
… can profoundly shape the evolution of breeding behaviour. Several recent theoretical studies have argued that inbreeding avoidance should not always evolve and that because inbreeding increases the proportion of genes shared amongst relatives it can influence the evolution of altruism. In fact, …
-
Biology and impact of the New Zealand pea crab (Nepinnotheres novaezelandiae) in aquacultured greenlipped mussels (Perna canaliculus)
… host-parasite interactions and pea crab mating behaviour that could potentially prove useful for controlling their infection in aquaculture. Research presented in this thesis investigated the biology, abundance, distribution, impact, and mate location behaviour of Nepinnotheres …
-
Aspects of the ecology of Scolypopa australis (Walker) (Homoptera:Ricaniidae) and its parasite Centrodora scolypopae (Valentine) (Hymenoptera: Aphelinidae)
… internal and external reproductive systems and mating behaviour are described. Although C. scolypopae females were shown to discriminate between parasitised and nonparasitised host eggs, superparasitism was common in years of high percentage parasitism of host eggs. The progeny of the first …
-
Inter-specific hybridization in the fish family Cyprinidae
… include factors such as the inappropriate mating behaviour of Fl hybrids or the inferior fitness of post Fl hybrids.The analysis of mitochondrial DNA did not yield sufficient results to elucidate the importance of maternal ancestry in hybridization. It is suggested that this aspect of …
-
Behavioural, microhabitat, and phylogenetic dimensions of intrasexual contest competition in combatant monkey beetles (Scarabaeidae: Hopliini)
… shows a high degree of sexual dimorphism and mating behaviour driven by male-male competition. I build on previous observations of hind leg use in intrasexual male-male contest for reproductive access to females by showing that, in Heterochelus chiragricus, contests occur in the context of a …
Page 1 of 2