Lesser Ury [Illustration] : (Porträt)

Scan von Monochrom-Mikroform

Bei Lesser Ury : 7. November 1861 bis 18. Oktober 1931

Arthur Galliner

Eine Lesser Ury-Ausstellung

Adolph Donath

Die Lesser Ury-Ausstellung : II.

Adolph Donath

Lesser Ury

Martin Buber

Lesser Ury [Illustration] : (Porträt)

Scan von Monochrom-Mikroform

Porträt des Malers Lesser Uri, Berlin [Illustration] : (Porträtzeichnung)

Hermann Struck

Lesser Ury

Will Pleß

Der künstlerische Nachlass [Teils.] von Lesser Ury : 129 Ölgemälde, 123 Pastelle; Ausstellung: ... 13. Okt. bis ... 15. Okt. 1932 ... ; Versteigerung: Freitag, den 21. Oktober 1932 ... bei Paul Cassirer, Berlin

Auktionsleitung: Paul Cassirer

Einige neuere Himalaya-Alpenrosen (Rhododendren)

anonym

Vegetation im Lande der Sikkim im östlichen Himalaya

Nach Dr. Jos. Hooker

Die Himalaya-Landschaften Rupschu und Ladak

Reiseskizzen von Missionar F. Redslob

Lesser Ury

Vermerk an der letzten Seite: "Diese Vorzugsausgabe wurde in 100 Exemplaren auf Bütten im Jahr 1920 bei Otto v. Holten, Berlin, die Originallitographie bei A. Rogall, Berlin, gedruckt. Dieses Exemplar trägt die Nr. 70."

Diet selection by the lesser rhea (Rhea pennata pennata) in Payunia, Northern Patagonia (Mendoza, Argentina)

The lesser rhea (family Rheidae) is a flightless large bird of South America, threatened due to habitat loss, hunting and egg collecting, with special concern in Northern Patagonia. Diet and food availability were estimated throughout the year by micro-histological analysis and point-quadrat transects in a landscape inside and another outside the Payunia Reserve, the northernmost part of the Rhea pennata pennata distribution. Significant differences were detected by Kruskall-Wallis ANOVA, food selection by Chi-square test and Bailey’s confidence interval. A strong food selection characterized the diet of lesser rheas, dominated by leaves of shrubs and forbs, complemented by dicot seeds and a few insects. This agrees with the documented low dietary overlap with other herbivores in Payunia. Dietary changes agree with the expected from the selective quality hypothesis. Food availability was better inside than outside the protected area, with probable conservation effects for lesser rheas. Seeds, forbs and soft grasses could be for lesser rheas some key food resources to survive during unfavorable seasons in arid environments without "mallines", as Payunia. Shrubby patches, with high availability of preferred food items (tall shrubs and forbs), stood out as key habitats. Therefore, avoiding fire and woody plant removal is crucial for the conservation of lesser rheas in the northern of its range.

Geochemistry and Nd-Pb isotope ratios of sediments from the Lesser Antilles arc

The Lesser Antilles arc is a particularly interesting island arc because it is presently very active, it is located perpendicular to the South American continent and its chemical and isotopic compositions display a strong north-south gradient. While the presence in the south of a thick pile of sedimentary material coming from the old South American continent has long been suspected to explain the geochemical gradient, previous studies failed to demonstrate unambiguously a direct link between the arc lava compositions and the subducted sediment compositions. Here, we present new Nd, Sm, Th, U and Pb concentrations and Nd-Pb isotopic data for over 60 sediments from three sites located in the fore arc region of the Lesser Antilles arc. New data for DSDP Site 543 drill core located east of Dominica Island complement the data published by White et al. (1985, doi:10.1016/0016-7037(85)90082-1) and confirm their relatively uniform isotopic compositions (i.e., 206Pb/204Pb between 19.13 and 19.53). In contrast, data obtained on DSDP Site 144 located further south, on the edge of the South American Rise and on sediments from Barbados Island are much more variable (206Pb/204Pb ranges from 18.81 to 27.69). The very radiogenic Pb isotopic compositions are found in a 60 m thick black shale unit, which has no age equivalent in the Site 543 drill core. We interpret the peculiar composition of the southern sediments as being due to two factors, (a) the proximity of the South American craton, which contributes coarse grain old detrital material that does not travel far from the continental shelf, and (b) the presence of older sediments including the thick black shale unit formed during Oceanic Anoxic events 2 and 3. The north-south isotopic change known along the Lesser Antilles arc can be explained by the observed geographical changes in the composition of the subducted sediments. About 1% contamination of the mantle wedge by Site 543 sediments explains the composition of the northern islands while up to 10% sediments like those of Site 144 is required in the source of the southern island lavas. The presence of black shales in the subducted pile provides a satisfactory explanation for the very low Delta8/4 values that characterize the Lesser Antilles arc.