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Retrospective monitoring of rangeland vegetation change: ecohistory from deposits of sheep dung associated with shearing sheds (2000)

Witt, G. Bradd ; Berghammer, Lindi J. ; Moll, Robert J. S. Beeton and Eugene J.

Melbourne, Australia : Blackwell Science Pty

Austral ecology 25 (2000), S. 0

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ISSN: 1442-9993

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: This paper explores the potential of a new method of reconstructing historical vegetation change in the Australian rangelands. Historical monitoring of rangeland vegetation has been so deficient that it is not possible to determine whether a long-term trend toward degradation has occurred (as is often assumed) or, indeed, if it is continuing to occur. Because long-term records are unavailable any attempt to monitor vegetation retrospectively must be based on proxy measures rather than direct observation. Where historical data are lacking an integration of palaeoecological, archaeological and ecological methods is required to reconstruct the past. Our research is based on a detailed analysis of sheep faeces deposited near a shearing shed in the semiarid rangelands of south-west Queensland between the late 1930s and the mid-1990s. The faeces in these deposits represent the diet of sheep in the days leading up to the property’s annual shearing and as such are a potentially useful index to changes in vegetation. Results indicate significant changes in the diet of sheep since the late 1940s. The potential of this method, and its limitations, are discussed. Long-term records are critical in understanding issues of sustainability in land management and it is intended that this paper will stimulate further research into historical vegetation change in rangelands.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1046/j.1442-9993.2000.01027.x

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Diagnostik und Therapie der Laryngitis gastrica (2000)

Pahn, J. ; Schlottmann, A. ; Witt, G. ; [et al.]

Springer

HNO 48 (2000), S. 527-532

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ISSN: 1433-0458

Keywords: Schlüsselwörter Laryngitis gastrica ; Omeprazol ; Key words Laryngitis gastrica ; Omeprazol

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Description / Table of Contents: Abstract We treated 64 patients with the diagnosis of laryngitis gastrica with Antra (Omeprazol) in doses of 10, 20, and 40 mg. To determine the success of the therapy, pH monitoring of the esophagus and hypopharynx, the voice status and measurement of vocal penetrating capacity were used. The results prove that a 20-mg dose of Antra is suitable for the therapy of laryngitis gastrica with a high rate of success. Problems which arose during the investigation, consequent changes of the original concept of the project as well as new aspects and questions which resulted from this are discussed with respect to further investigation.

Notes: Zusammenfassung In einem Therapieversuch werden 64 Patienten mit der Diagnose Laryngitis gastrica mit Antra (Omeprazol) in unterschiedlicher Dosierung, 10, 20, und 40 mg, behandelt. Zur Beurteilung des Therapieerfolgs werden die pH-Metrie des Ösophagus und Hypopharynx, die Laryngoskopie, Mikrostroboskopie, der Stimmstatus und die Messung der stimmlichen Durchdringungsfähigkeit herangezogen. Das Ergebnis zeigt, dass mit Antra (Omeprazol) in der Dosierung 2-mal 20 mg ein geeignetes Medikament zur Therapie der Laryngitis gastrica mit hoher Erfolgsquote zur Verfügung steht. Es werden Probleme bei der Durchführung der Studie, dadurch bedingte Abweichungen von der ursprünglichen Konzeption des Projekts, sowie daraus resultierende neue Gesichtspunkte und Fragestellungen für weitere Untersuchungen diskutiert.