Aniulus Paludicolens, N. SP. (Julida: Paraiulidae), a Bog-Dwelling Milliped

Almost without exception, millipeds require a continuously moist substratum, yet they do not tolerate flooding. Other ecological factors that limit their distribution are subtle and difficult to recognize. Aniulus paludicolens, n. sp., is unique in that all collections are from Sphagnum bogs in the vicinity of the Great Lakes. It is best known from Byron Bog, in southern Ontario. This bog has the following vegetation zones: a, a central bog based on a mat of Sphagnum moss and covered almost entirely by leatherleaf; b, a low wooded region, damp or flooded, with hardwood trees and shrubs at its outer limits and black spruce and larch at its inner limits; and c, wooded slopes occupied by deciduous trees and shrubs. A. psludicolens occurs only in zones b and c, and in greatest numbers in the former. Other millipeds in the bog include A. bollmani Causey, which was collected only in zone c (Judd, 1965). These two species represent the most northern distribution of the genus, of which there are many species in the southern states and Texas. The species most closely related to A. paludicolens is A. pclitus Chamberlin , which occurs in disjunct polytypic populations in the mountain valleys of Arizona, Colorado, and New Mexico

First Record of \u3ci\u3eDorocordulia Libera\u3c/i\u3e (Odonata: Corduliidae) in Ohio in 75 Years

A population of the Racket-tailed Emerald, Dorocordulia libera, was found at Singer Lake, a collection of numerous bogs in southern Summit County, Ohio. This species was previously known in Ohio from two speci­ mens collected 22 June 1924 from a bog in Geauga County. Between 8 June and 23 July 1999, 14 male and 3 female specimens were collected at Singer Lake. Notes on this species behavior and flight season in Ohio are presented

Beyond "The limits to peat bog growth'': Cross-scale feedback in peatland development

Copyright by the Ecological Society of America 2006, for personal or educational use only. Article is available at <http://dx.doi.org/10.1890/0012-9615(2006)076[0299:BTLTPB]2.0.CO;2

The phase diagram of vortex matter in layered superconductors with tilted columnar pinning centers

We study the vortex matter phase diagram of a layered superconductor in the presence of columnar pinning defects, {\it tilted} with respect to the normal to the layers. We use numerical minimization of the free energy written as a functional of the time averaged vortex density of the Ramakrishnan-Yussouff form, supplemented by the appropriate pinning potential. We study the case where the pin density is smaller than the areal vortex density. At lower pin concentrations, we find, for temperatures of the order of the melting temperature of the unpinned lattice, a Bose glass type phase which at lower temperatures converts, via a first order transition, to a Bragg glass, while, at higher temperatures, it crosses over to an interstitial liquid. At somewhat higher concentrations, no transition to a Bragg glass is found even at the lowest temperatures studied. While qualitatively the behavior we find is similar to that obtained using the same procedures for columnar pins normal to the layers, there are important and observable quantitative differences, which we discuss.Comment: 12 pages, including figure

The Microfossil Succession in a Bog in Northern Wisconsin

A stratigraphical and statistical study was made of the microfossils in the marginal mat of a bog lake located near the Limnological Laboratories of the Wisconsin Geological and Natural History Survey at Trout Lake, Wisconsin. The fossils indicate that the regional flora was dominated, early in its history by a gymnosperm element, but was gradually replaced by angiosperms. The use of microfossils in determining the vertical distribution of limnic sediments in bog deposits was found to be an accurate method. The fossils used in this connection were sponge spicules and internal leaf trichomes of water lilies

Coastal Conservation Lands Update (2005)

The Complex Systems Research Center (CSRC) at the University of New Hampshire has developed, implemented, and coordinated the GRANIT GIS clearinghouse since its inception in the mid 1980’s. One of the primary data sets maintained by CSRC and served through the clearinghouse is the Conservation and Protected Lands Data Layer. This data set contains a digital record of parcels of land of two or more acres that are mostly undeveloped and are protected from future development. Smaller parcels that adjoin previously mapped parcels or represent unique features, such as a bog or state-owned boat ramp, may also be included in this data layer. Through the GRANIT Conservation Lands Data Layer Update project, data on current protected lands were collected, reviewed, and processed for 48 communities in seacoast NH, including the 42 towns within the NH Estuaries Project area. GRANIT staff contacted each community’s conservation commission, as well as all quasi-public entities and land trusts active in the region, to solicit updates and additions to the data set. Concurrently, staff from the NH Office of Energy and Planning contacted the state and federal agencies that manage property in the seacoast to request comparable information. Through this collaborative process, 166 new tracts covering over 6,000 acres were added to the database. In addition, information on 122 existing tracts was modified to incorporate the reported corrections