Journal: Ecological Entomology
Location: ?, Canada

The Elm Spanworm hatching boom is 2 weeks after the Sycamore Maple budburst. 85% more eggs were laid on the lower trunk than the crown (although those in later stages of development moved up towards the crown) and it had nothing to do with avoiding parasites (only one pupa was parasitised) or getting better quality leaves, although feeding on older leaves (three leaves expanded per bud) significantly improved the caterpillars’ chance of surviving to adulthood (90%, or 45% higher than when feeding on on younger leaves). Sycamore Maple leaves mature acropetally (from the base up).

Elm Spanworm – Ennomos subsignaria
Sycamore Maple – Acer pseudoplatanus

Fry HRC, Quiring DT, Ryall KL, Dixon PL, 2009. “Influence of intra-tree variation in phenology and oviposition site on the distribution and performance of Ennomos subsignaria on mature sycamore maple.” Ecological Entomology, DOI: 10.1111/j.1365-2311.2009.01091.x
Affiliations: University of New Brunswick, Canadian Forest Service, Agriculture and Agri-Food Canada (AAFC)

Journal: Basic and Applied Ecology
Location: Glasshouse experiment, Germany?

When tomatoes were inoculated with the fungal endophyte Acremonium strictum, only 20% of Cotton Bollworm caterpillars survived to adulthood, compared to 54.5% on uninoculated tomatoes, although they still ate the same quantity of leaves.

Tomatoes – Lycopersicum esculentum
Cotton Bollworm – Helicoverpa armigera

Jallow MF, Dugassa-Gobena D, Vidal S, 2004. “Indirect interaction between an unspecialized endophytic fungus and a polyphagous moth.” Basic and Applied Ecology, 5(2): 183-191, DOI: 10.1078/1439-1791-00224
Affiliations: Georg-August-Universität Göttingen

Journal: Limnologica: Ecology and Management of Inland Waters
Location: Lake Tegel, Berlin, Germany

Fine polymer resin particles 2.4μm in diameter were stained with 7-amino-4-methylcoumarin (AMC), and Chlorella vulgaris (a single-celled alga) was labelled with fluorescein-5-isothiocyanate (FITC). The fine polymer particles were ingested by several groups (chironomids, microcrustaceans, oligochaetes and tardigrads), whereas Chlorella was only taken up by oligochaetes, and over 85% of particles ended up in the top centimetre of sediment within 14 days. In plexiglass sediment cores, <1mm dried alder leaf fine particulate organic matter (FPOM) stayed within the top 2-3cm of sediment, with finer particles deepest. 65-96% of algae settled there were attached to sand, restricting vertical transport.

Gunker G, Beulker C, Hoffmann A, Kosmol J, 2008. “Fine particulate organic matter (FPOM) transport and processing in littoral interstices – use of fluorescent markers.” Limnologica, in press, doi:10.1016/j.limno.2008.11.001
Affiliations: Berlin University of Technology