tailed deer, Odocoileus virginianus, in Martin County, Indiana. American Midland Naturalist 89:281–286. Sperry, J. S., N. M. Holbrook, M. H. Zimmerman, and M. T. Tyree. 1987. Spring filling of xylem vessels in wild grapevine. Plant Physiology 83:414–417. Stiles, E. W. 1982. Fruit flags: two hypotheses. American Naturalist 120:500–509. Walters, M. B., and P. B. Reich. 2000. Seed size, nitrogen s...

Bioenergetics models offer a useful framework for assessing the consumptive demand on ecosystems from nonnative fish. Consumption estimates from bioenergetics models can be combined with estimates of population abundance to quantify population-level consumption. This study applies a new bioenergetics modeling framework, developed by Walters and Essington (this volume), to estimate bioenergetics...

We develop further the algebra of cospans and spans of graphs introduced by Katis, Sabadini and Walters [11] for the sequential and parallel composition of processes, adding here data types.

First, we set a suitable notation. Points in $$\{0,1\}^{{\mathbb {Z}}-\{0\}} =\{0,1\}^{\mathbb {N}}\times \{0,1\}^{\mathbb {N}}=\Omega ^{-} \times \Omega ^{+}$$ , are denoted by $$( y|x) =(...,y_2,y_1|x_1,x_2,...)$$ where $$(x_1,x_2,...) \in {N}}$$ and $$(y_1,y_2,...) . The bijective map $${\hat{\sigma }}(...,y_2,y_1|x_1,x_2,...)= (...,y_2,y_1,x_1|x_2,...)$$ is called the bilateral shift acts o...

Raftery et al (1997) criticise Seymour & Rooke (1995) for setting out battle lines in their use of the terms rationalist and interpretive paradigms and argue that such dichotomies lead to a degeneration in research standards. Sharing their concern for research standards, in reply, we argue that Raftery et al’s plea for methodological liberalism will itself undermine standards. Different researc...

We extend the results of Walters on the uniqueness of invariant measures with maximal entropy on compact groups to an arbitrary locally compact group. We show that the maximal entropy is attained at the left Haar measure and the measure of maximal entropy is unique.

© WILDLIFE BIOLOGY · 7:3 (2001) Almost half a century ago the main concepts underlying sustainable exploitation were devised in a series of remarkable papers (Schaefer 1954, Ricker 1954, Beverton & Holt 1957). These pioneering studies provided the framework for a series of sophisticated models and methods of analyses that make current fisheries management a highly advanced process (e.g. Hilborn...

A new, simple, and rapid assay for conjugated bilirubin that does not require serum-matrix standards was developed by using the enzyme bilirubin oxidase (EC 1.3.3.5). This procedure can also be modified to measure total bilirubin. Measurements from these assays were compared with results obtained with the Sigma 605 (Jendrassik-Gróf method), Sigma 550/551 (Walters-Gerarde method), and Kodak Ekta...

The performance of an optimized tree-type cylindrical-shaped nanoporous fltering membrane proposed in the former study is analytically investigated for varying operational parameter values. Across the membrane thickness, this membrane has two-leveled tree-structured pores including one trunk pore and the multiple branch pores. The physical properties of the surfaces of ...