What happens when an animal is injured and loses important structures? Some animals simply heal the wound, whereas others are able to regenerate lost parts. In this study, we report a previously unidentified strategy of self-repair, where moon jellyfish respond to injuries by reorganizing existing parts, and rebuilding essential body symmetry, without regenerating what is lost. Specifically, in...

We used surface trawls to quantify abundance and distribution of four large medusae—Chrysaora fuscescens, Aurelia labiata, Phacellophora camtschatica, and Aequorea sp.—in the northern California Current, a coastal upwelling area, during June and August 2000 and 2002. C. fuscescens was most abundant, with a maximum of 77 per 1000 m (or 64mg C/m). Densities of A. labiata reached 10 per 1000 m (26...

Dissemination of vector-transmitted pathogens depend on the survival and dispersal of the vector and the vector's ability to transmit the pathogen, while the host range of vector and pathogen determine the breath of transmission possibilities. In this study, we address how the interaction between dispersal and plant fidelities of a pathogen (stolbur phytoplasma tuf-a) and its vector (Hyalesthes...

in Ontario, Canada: management implications. J Wildl Dis. 2006;42:589–605. http://dx.doi.org/10.7589/0090-3558-42.3.589 27. Rosatte R, Sobey K, Donovan D, Allan M, Bruce L, Buchanan T, et al. Raccoon density and movements after population reduction to control rabies. J Wildl Manage. 2007; 71:2373–8. http://dx.doi.org/10.2193/2006-549 28. Rosatte R, Donovan D, Allan M, Howes LA, Silver A, Bennet...

Mountain gorillas (Gorilla beringei beringei) in Karisoke, Rwanda, feed on the stinging nettle Laportea alatipes by means of elaborate processing skills. Byrne [e.g. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences 358:529-536, 2003] has claimed that individuals acquire these skills by means of the so-called program-level imitation, in which the overall s...

We investigated diurnal and seasonal changes in carbon acquisition and partitioning of recently assimilated carbon in fast- and slow-growing families of loblolly pine (Pinus taeda L.) to determine whether fast-growing families exhibited greater carbon gain at the leaf level. Since planting on a xeric infertile site in Scotland County, NC, USA in 1993, five Atlantic Coastal Plain (ACP) and five ...

Title of Thesis: EFFECTS OF ENVIRONMENTAL FACTORS ON DISTRIBUTION AND ASEXUAL REPRODUCTION OF THE INVASIVE HYDROZOAN, MOERISIA LYONSI Xiping Ma, Master of Science, 2003 Thesis directed by: Professor Jennifer E. Purcell Professor Victor S. Kennedy Associate Professor Thomas J. Miller Marine, Estuarine, and Environmental Sciences Program University of Maryland, College Park The effects of tempera...

We used dendrochronological methods to construct three fire history chronologies in the interior of the Boston Mountains of Arkansas from 281 dated fire scars identified on 86 shortleaf pine (Pinus echinata) remnants and trees. We describe and contrast these interior sites with sites on the southern perimeter of Boston Mountains that were documented in an earlier study and examine human, topogr...