Isotopic ecology of coyotes from scat and road kill carcasses: A complementary approach to feeding experiments.

Scat is frequently used to study animal diets because it is easy to find and collect, but one concern is that gross fecal analysis (GFA) techniques exaggerate the importance of small-bodied prey to mammalian mesopredator diets. To capitalize on the benefits of scat, we suggest the analysis of scat carbon and nitrogen isotope values (δ13C and δ15N). This technique offers researchers a non-invasive method to gather short-term dietary information. We conducted three interrelated studies to validate the use of isotopic values from coyote scat: 1) we determined tissue-to-tissue apparent C and N isotope enrichment factors (ε13* and ε15*) for coyotes from road kill animals (n = 4); 2) we derived diet-to-scat isotope discrimination factors for coyotes; and 3) we used field collected coyote scats (n = 12) to compare estimates of coyote dietary proportions from stable isotope mixing models with estimates from two GFA techniques. Scat consistently had the lowest δ13C and δ15N values among the tissues sampled. We derived a diet-to-scat Δ13C value of -1.5‰ ± 1.6‰ and Δ15N value of 2.3‰ ± 1.3‰ for coyotes. Coyote scat δ13C and δ15N values adjusted for discrimination consistently plot within the isotopic mixing space created by known dietary items. In comparison with GFA results, we found that mixing model estimates of coyote dietary proportions de-emphasize the importance of small-bodied prey. Coyote scat δ13C and δ15N values therefore offer a relatively quick and non-invasive way to gain accurate dietary information

The Eurovision St Andrews collection of photographs

This report describes the Eurovision image collection compiled for the ImageCLEF (Cross Language Evaluation Forum) evaluation exercise. The image collection consists of around 30,000 photographs from the collection provided by the University of St Andrews Library. The construction and composition of this unique image collection are described, together with the necessary information to obtain and use the image collection

Coyote (Canis latrans) use of marine resources in coastal California: A new behavior relative to their recent ancestors

Coyotes ( Canis latrans) are known to consume marine foods, but the importance and persistence of marine subsidies to coyotes is unknown. Recent access to a marine subsidy, especially if gained following apex predator loss, may facilitate coyote expansion along coastal routes and amplify the effects of mesopredator release. Our goal was to quantify and contextualize past and present marine resource use by coyotes on the central coast of California via stable isotope analysis. We measured δ13C and δ15N values in coyotes, their competitors, and their food resources at two modern sites, seven archaeological sites spanning in age from ~3000 to 750 BP, and from historical (AD 1893–1992) coyote and grizzly bear hair and bone sourced from coastal counties. We found evidence for marine resource use by modern coastal California coyotes at one site, Año Nuevo, which hosts a mainland northern elephant seal ( Mirounga angustirostris) breeding colony. Seals and sea lions account for ~20% of Año Nuevo coyote diet throughout the year and this marine subsidy likely positively impacts coyote population size. Isotopic data suggest that neither historic nor prehistoric coyotes consumed marine-derived foods, even at sites near ancient mainland seal rookeries. Marine resource use by some contemporary California coyotes is a novel behavior relative to their recent ancestors. We hypothesize that human alteration of the environment through extirpation of the California grizzly bear and the more recent protection of marine mammals likely enabled this behavioral shift

The U.S. government synthetic rubber program, 1941-1955 : an examination in search of lessons for current energy technology commercialization projects

Prepared for the United States Energy Research and Development Administration under Contract no. E(40-18) 2295, Task order

How the Canberra camel got its hump : the departmental board's plan, its origins and consequences

When the first peg was driven by King O’Malley on 20 February 1913 to start construction of Australia’s capital the work was based, not on the thoroughbred design of Griffin, but on a camel designed by a committee. This was the Board’s plan drawn up by David Miller, Percy Owen and Charles Scrivener assisted by George Oakshott, John Murdoch and Thomas Hill. It is comforting to think the camel was a short lived aberration but that is not the case.Australian Policy Online (APO)'s Linked Data II project, funded by the Australian Research Council, with partners at the ANU Library, Swinburne University and RMIT

LETTER TO THE EDITOR

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65553/1/j.1752-7325.1977.tb02886.x.pd

Regulating Software When Everything Has Software

This Article identifies a profound, ongoing shift in the modern administrative state: from the regulation of things to the regulation of code. This shift has and will continue to place previously isolated agencies in an increasing state of overlap, raising the likelihood of inconsistent regulations and putting seemingly disparate policy goals, like privacy, safety, environmental protection, and copyright enforcement, in tension. This Article explores this problem through a series of case studies and articulates a taxonomy of code regulations to help place hardware-turned-code rules in context. The Article considers the likely turf wars, regulatory thickets, and related dynamics that are likely to arise, and closes by considering the benefits of creating a new agency with some degree of centralized authority over software regulation issues