Protodammara reimatamoriori,a new species of conifer (Cupressaceae) from the Upper Cretaceous Tupuangi Formation,Chatham Islands,Zealandia

Mays, C. & Cantrill, D.J., January 2018. Protodammara reimatamoriori, a new species of conifer (Cupressaceae) from the Upper Cretaceous Tupuangi Formation, Chatham Islands, Zealandia. Alcheringa XXX, X–X. ISSN 0311-5518.

Isolated conifer female reproductive structures are common fossil elements from Cenomanian (ca 99–94 Ma) charcoal- and resin-rich beds of the Tupuangi Formation, Chatham Islands, southwest Pacific Ocean. Recent findings have proposed that these are the oldest fossil evidence of serotiny, a highly successful fire-adaptive reproductive strategy common among tree species living in fire-prone areas today. Herein, we systematically describe the external morphological and anatomical features of these fossils, by employing a combination of manual extraction and neutron tomography techniques. We propose a new species of conifer, Protodammara reimatamoriori, and a re-examination of fossil material of the Protodammara type species facilitated an emendation of the genus. Protodammara shares numerous features with extant Cunninghamia, Taiwania, Athrotaxis, and several extinct taxa of Cupressaceae, and is interpreted as an extinct lineage of the early-divergent ‘taxodioid Cupressaceae’ stem group.

Chris Mays [chris.mays@nrm.se] Department of Palaeobiology, Swedish Museum of Natural History, Frescativägen 40, Stockholm 114 18, Sweden; School of Earth, Atmosphere and Environment, Monash University, 9 Rainforest Walk, Clayton, VIC 3800, Australia; David J. Cantrill [david.cantrill@rbg.vic.gov.au] Royal Botanic Gardens Victoria, Private Bag 2000, South Yarra, VIC 3141, Australia; School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia.     

Covid-19 is an unnatural disaster: Hope in revelatory moments of crisis

Abstract

The unfolding COVID-19 pandemic has closed borders, grounded planes, quarantined more than half of the world’s population, triggered anxiety en masse, and shaken global capitalism to its core. Scholars of the political ecology of disasters have sought to denaturalize so-called “natural” disasters by demonstrating their uneven consequences. Work in the political ecology of health similarly accounts for how risk of illness and disease are socio-economically mediated. While this scholarship has demonstrated the need to contextualize the unequal fallout from ecological and health disasters in ways that reveal the festering wounds of structural inequality, we know much less about how hope is cultivated in moments of crisis. The current revelatory moment of the COVID-19 pandemic offers an opportunity to find hope in the rubble through the deconstruction of framings of crisis as “error” and by homing in on the current and potential role of tourism to contribute to a more socially and environmentally just society. This reframing the pandemic as an "unnatural" disaster opens new debates at the intersection of tourism geographies and political ecologies of hope in revelatory moments of crisis.     

《史记》与《周易》

《史记》深受《周易》的影响,本文从以下几个方面作了说明司马迁十分推崇《周易》,视其为圣人之书;“致命遂志”是司马迁的最高价值追求;“殊途同归”、“易简”、“时变”等观念是其写作《史记》的重要指导思想;《周易》中的很多辞句,成为其立论的依据。     

In-Plane Seismic Response Analyses of a Historical Brick Masonry Building Using Equivalent Frame and 3D FEM Modeling Approaches

ABSTRACT

This article aims at contributing to the seismic performance assessment of a historic brick masonry building by finding a strength reduction coefficient through the use of linear and nonlinear modeling approaches, using Finite Element Method and Equivalent Frame modeling. To reduce the uncertainties, ambient vibration tests (AVT) were implemented. Series of simulations was performed using nonlinear dynamic analyses and incremental dynamic analysis curves were compared with the pushover curves. Results indicate that the mass-proportional pushover curve meets the mean of results obtained from IDA and the strength reduction coefficient falls into the range given in EN 1998–1 for unreinforced masonry.     

THE VALUE OF WATER VALUES: DEPARTING FROM GEOGRAPHY TOWARDS AN INTERDISCIPLINARY SYNTHESIS

Water valuation represents both an opportunity and a challenge for interdisciplinary scholarly research, given that it can mobilize academic work beyond unnecessary cleavages between physical and social sciences. The article revisits the most common valuation approaches – namely, water as an economic resource, entangled in commodification strategies and embedded in cultural heritages – as important, but incomplete, considerations of the multitude of water values. While previous publications have dealt with the values held by different social groups and by the territorialized manifestation of water values, the limitations of prevailing valuation strategies are discussed here and a relational synthesis is proposed. As relevant as the examination of particular values (e.g. economic, non‐economic, religious, cultural, aesthetic values, etc.) is the realization that the valuation of water is articulated according to socionatural interdependencies and the historic‐geographical trajectories of individuals and groups. Water valuation is, therefore, premised on a relational, holistic ontology, in the sense that values are necessarily interrelated and emerge out of concrete, politicized socionatural interactions. Making use of relevant examples, it is argued that the valuation of water is ultimately a political statement that synthesizes mechanisms of cooperation and competition between individuals and social groups for the allocation, use and conservation of water. Such politicized understanding of the interconnections between water values provides a helpful entry point into the causes and consequences of water management problems. These are all profoundly geographical, but also interdisciplinary, questions, as water values reflect multiscale connections between local processes and wider relations of production, consumption and reproduction.     

The Postholocaust Landscape of Chelmno on the Ner (Kulmhof an der Nehr): An Ecological Perspective

ABSTRACT

This article shows how the ecology and nature of the Rzuchów Forest (in the Rzuchów district of the Ko?o forestry inspectorate in Greater Poland) was indirectly affected by the extermination of the Jewish population as a result of it being used to camouflage evidence of the crimes. Tracing the environmental history of commemoration in the forested part of the former death camp at Che?mno on the Ner (Che?mno nad Nerem/ Kulmhof an der Nehr) will give an indication of the ecological consequences of efforts to preserve the material traces of the camp and its natural surroundings. These efforts continued into the late 1980s. The ecology of commemoration and environmental commemoration form the two poles of this ecological continuum. It is possible to bring them closer together by furthering debates on the relationship between genocide and ecocide, while also expanding existing narratives on the Holocaust by turning to environmental aspects. This research is guided by the idea that it is necessary to rethink existing (and planned) forms of commemoration of crimes against humanity in the context of environmental ethics, with this approach leading to forms of commemoration at killing sites that give more consideration to the environment.     

Introduction: Historical geographies of internationalism, 1900–1950

This introduction to a special issue on historical geographies of internationalism begins by situating the essays that follow in relation to the on-going refugee crisis in Europe and beyond. This crisis has revealed, once again, both the challenges and the potential of internationalism as a form of political consciousness and the international as a scale of political action. Recent work has sought to re-conceptualise internationalism as the most urgent scale at which governance, political activity and resistance must operate when confronting the larger environmental, economic, and strategic challenges of the twenty-first century. Although geographers have only made a modest contribution to this work, we argue that they have a significant role to play. The essays in this special issue suggest several ways in which a geographical perspective can contribute to rethinking the international: by examining spaces and sites not previously considered in internationalist histories; by considering the relationship between the abstractions of internationalism and the geographical and historical specificities of its performance; and by analysing the interlocking of internationalism with other political projects. We identify, towards the end of this essay, seven ways that internationalism might be reconsidered geographically in future research through; its spatialities and temporalities; the role of newly independent states; science and research; identity politics; and with reference to its performative and visual dimensions.