Bumblebees are not deterred by ecologically relevant concentrations of nectar toxins

In a previous blog post I wrote about my work on “toxic nectar.”  This paradoxical phenomenon occurs when potentially deterrent or toxic plant secondary compounds, usually associated with defense against herbivores, are found in floral nectar rewards.  Throughout my PhD I’ve spent countless hours in the lab performing experiments on toxic nectar, discussed this work at …

School of Natural Sciences Postgraduate Symposium 2014: Part2/4

On the 20th and 21st of February we had our annual School of Natural Sciences Postgraduate Symposium. Over the course of two days many of our PhD students presented their work to the School. We also had two interesting plenary talks from Dr Sophie Arnaud-Haond (Ifremer) and Dr Lesley Morrell (University of Hull). Unfortunately our third speaker, Dr Fiona Jordan (University of …

Seminar series; James McInerney, NUI Maynooth

Part of our series of posts by final-year undergraduate students for their Research Comprehension module. Students write blogs inspired by guest lecturers in our Evolutionary Biology and Ecology seminar series in the School of Natural Sciences. This week; views from Dermot McMorrough and Maura Judge on James McInerney’s seminar, The hybrid nature of eukaryotes rejects the three-domains hypothesis of life …

What I did this summer: Tortured some bees

Among the multiple pressures currently driving decline in bee populations, little attention has been given to naturally occurring toxins in plant nectar.  We carried out research this summer on invasive Rhododendron ponticum, a plant that contains neurotoxins in its floral nectar.  We found this toxin to be lethal to honeybees, but apparently benign to the …