Preface to the Princeton Landmarks in Biology Edition vii Preface xi Symbols Used xiii 1. The Importance of Islands 3 2. Area and Number of Speicies 8 3. Further Explanations of the Area-Diversity Pattern 19 4. The Strategy of Colonization 68 5. Invasibility and the Variable Niche 94 6. Stepping Stones and Biotic Exchange 123 7. Evolutionary Changes Following Colonization 145 8. Prospect 181 Glossary 185 References 193 Index 201

The Theory of Island Biogeography

We consider 27 population and community terms used frequently by parasitologists when describing the ecology of parasites. We provide suggestions for various terms in an attempt to foster consistent use and to make terms used in parasite ecology easier to interpret for those who study free-living organisms. We suggest strongly that authors, whether they agree or disagree with us, provide complete and unambiguous definitions for all parameters of their studies.

/pdf/parasitology-meets-ecology-on-its-own-terms-margolis-et-al-4c6w2pahe6.pdf

Parasitology meets ecology on its own terms: Margolis et al. revisited.

The Cambridge Structural Database (CSD) contains a complete record of all published organic and metal–organic small-molecule crystal structures. The database has been in operation for over 50 years and continues to be the primary means of sharing structural chemistry data and knowledge across disciplines. As well as structures that are made public to support scientific articles, it includes many structures published directly as CSD Communications. All structures are processed both computationally and by expert structural chemistry editors prior to entering the database. A key component of this processing is the reliable association of the chemical identity of the structure studied with the experimental data. This important step helps ensure that data is widely discoverable and readily reusable. Content is further enriched through selective inclusion of additional experimental data. Entries are available to anyone through free CSD community web services. Linking services developed and maintained by the CCDC, combined with the use of standard identifiers, facilitate discovery from other resources. Data can also be accessed through CCDC and third party software applications and through an application programming interface.

https://journals.iucr.org/b/issues/2016/02/00/bm5086/bm5086.pdf

The Cambridge Structural Database

Statistics for Spatial Data.

This book is the second of two volumes in a series on terrestrial and marine comparisons, focusing on the temporal complement of the earlier spatial analysis of patchiness and pattern (Levin et al. 1993). The issue of the relationships among pattern, scale, and patchiness has been framed forcefully in John Steele’s writings of two decades (e.g., Steele 1978). There is no pattern without an observational frame. In the words of Nietzsche, “There are no facts… only interpretations.”

https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.2307/1941447

The Problem of Pattern and Scale in Ecology: The Robert H. MacArthur Award Lecture

Two equivalents of acetylacetonate (acac) have been successfully introduced into a monomeric tungsten(II) coordination sphere. With the tetracarbonyltriiodotungsten(II) anion as a precursor, the fo...

Bis(acetylacetonato)tricarbonyl tungsten(II): a convenient precursor to chiral bis(acac) tungsten(II) complexes.

The high peaks of the southern Appalachians (Latitude 35?-37?N, Longitude 81'-84'W) range up to 2,037 m (6,684 ft) in elevation, but lack an alpine treeline. Because some species with alpine affinities persist on high elevation rock outcrops in these mountains and because of our interest in the potential impacts of past and future climate changes on rare plants, we sought answers to the following questions: At what elevation would climatic treeline occur in these mountains under current climatic conditions if the mountains were higher and how variable are predictions based on different methods and assumptions? We compared sixteen estimates based on geographic, vegetational, floristic, and climatic lines of evidence in order to bracket the potential treeline. At 36'N in eastern North America these estimates showed considerable variation, ranging from 2,009 m to 3,237 m (28 m lower to 1,200 m higher than the highest summit). World-wide latitude averages probably overestimate treeline because of differences in continentality among sites, while extrapolations from the northern Appalachians underestimate it because of importance of particular climatic factors in northern latitudes. Non-linear or site-specific methods using extrapolation of vegetation zones, alpine species distributions, or temperature correlations give estimates that lie between these extremes. The range of the four independent methods that we considered the most appropriate for the southern Appalachians was 2,285 to 2,600 m, with an average of 2,417 m (7,930 ft). We believe that the most realistic prediction of treeline elevation in the southern Appalachians, combining local summer temperature regime with the best treeline isotherm from maritime east Asia (11.9'C), is 2434 m (7,985 ft), 397 m (1,301 ft) above the highest southern Appalachian peaks.

Predicting treeline elevation in the southern appalachians

Largely a legacy of stand-replacing human disturbances, today’s central hardwood forests exhibit a narrower range of stand ages and structures than those in the presettlement landscape. Although natural disturbance types and frequencies vary within the region, large stand-replacing natural disturbances have always been infrequent; typical return intervals in excess of 100 years are longer than current forests have existed. Many present-day stands are dominated by early to mid-successional species in the overstory and late successional species in the understory; natural disturbances often serve to increase dominance of the understory late successional species, unless they are severe enough to disturb the canopy, forest floor, and soil. In any case, only the most severe natural disturbances or combinations of disturbances (including human disturbance) initiate large patches of early successional vegetation. Will the amount and spatial arrangement of early successional habitats created by natural disturbances be sufficient to meet management goals? We do not have the information to answer this question at present; the answer is further complicated by the potential effects of climate change on the rates and intensities of natural disturbances.

Peter S. White

Papers

Bis(acetylacetonato)tricarbonyl tungsten(II): a convenient precursor to chiral bis(acac) tungsten(II) complexes.

Predicting treeline elevation in the southern appalachians

Natural Disturbances and Early Successional Habitats

Synthesis and Characterization of Chiral Diphosphine Platinum(II) VANOL and VAPOL Complexes

Proton-Induced, Reversible Evolution of O2 from the OsIV–Sulfoximido Complex [OsIV(tpy)(Cl)2{NS(O)-3,5-Me2C6H3}]†