Martin O'Grady

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The potential role hybridisation in adaptive radiation and the evolution of new lineages has received much recent attention. Hybridisation between roach (Rutilus rutilus L.) and bream (Abramis brama L.) is well documented throughout Europe, however hybrids in Ireland occur at an unprecedented frequency, often exceeding that of both parental species.(More)
Stable isotope and gut content analyses, in conjunction with backcalculated length-at-age estimates of growth, were employed to examine the relationship between trophic ecology and growth rate of a successful invader, Rutilus rutilus, in eight lakes in Ireland. The data revealed that R. rutilus was a trophic generalist in Irish lakes. It utilized a greater(More)
A 36-year-old man with known schizophrenia, presented with increasingly bizarre behaviour. The development of catatonia and subsequent neuroleptic malignant syndrome in itself posed numerous therapeutic challenges. However, following resolution of neuroleptic malignant syndrome, the reintroduction of antipsychotics was not tolerated. This case report(More)
The effects are described of xerostomia on the oral mucosa and dental structures. The various conditions which give rise to extreme dryness are listed; a rough estimate is made on the prevalence of these conditions. The contribution of drug induced xerostomia, of post irradiation mouth dryness and of autoimmune associated salivary disorders are dealt with.(More)
Adult epiglottitis is probably more common than is recognized. The principles of management are the same for both adults and children: adequate control of the airway and the use of appropriate antimicrobial agents (with special consideration given to second- and third-generation cephalosporins). Chemoprophylaxis, with rifampicin, should be considered for(More)
The first comprehensive investigation of pike Esox lucius trophic ecology in a region (Ireland) where they have long been thought to be a non-native species is presented. Diet was investigated across habitat types (lake, river and canal) through the combined methods of stable-isotope and stomach content analyses. Variations in niche size, specialization and(More)
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