Extensive outcrop data or photographs of present day depositions or even simple drawings from expert geologists contain precious structural information about spatial continuity that is beyond the present tools of geostatistics essentially limited to two-point statistics (histograms and covariances). A neural net can be learned to collect multiple point statistics from various training images, t...

Extreme events are rare, stochastic perturbations that can cause abrupt and dramatic ecological change within a short period of time relative to the lifespan of organisms. Studies over time provide exceptional opportunities to detect the effects of extreme climatic events and to measure their impacts by quantifying rates of change at population and community levels. In this study, we show how a...

Species composition patterns and vegetation-environment relationships were quantified for high-elevation rock outcrops of the Southern Appalachian Mountains, an infrequent and insular habitat in a forested landscape. Outcrops occur over a wide geographic range encompassing extensive variation in both geology and climate. Geographic-scale factors interact with site-scale factors to produce varia...

Two new Hoya R.Br. species from Borneo are described and illustrated. The first, Hoyaruthiae Rodda was collected in Sabah on Bukit Baturong, a limestone outcrop. It is one of the few species in the genus to have clear exudate. It is compared with the morphologically related Hoyauncinata Teijsm. and Binn. The other, Hoyabakoensis Rodda, was collected in the kerangas forests of Bako National Park...

Detailed stratigraphic and structural features of the Giddings Brook slice of the Taconic Allochthon in the Granville area. This Field Trip Guide includes Road Log (pp. 222-226), and Outcrop/Stop Descriptions (pp. 227-242). pages 186-242 in: Friedman, G.M. (ed.) Guidebook, 51st N.Y. State Geol. Assoc. Ann. Mtg. and New England Intercollegiate Geol .Conf., 71st Mtg., Rensselaer Poly. Inst., Troy...