Francisco Pascasio Moreno

Bio: Francisco Pascasio Moreno is an academic researcher. The author has an hindex of 7, co-authored 11 publications receiving 164 citations.

The Logic of Violence in Civil War

Abstract: Introduction 1. Concepts and definitions 2. Pathologies 3. Barbarism 4. A theory of irregular war I: collaboration 5. A theory of irregular war II: control 6. The logic of indiscriminate violence 7. A theory of selective violence 8. Empirics I: comparative evidence 9. Empirics II: microcomparative evidence 10. Intimacy 11. Cleavage and agency Conclusion.

Las Glaciaciones Cuaternarias en la Patagonia y Tierra del Fuego

Abstract: (1932). Las Glaciaciones Cuaternarias en la Patagonia y Tierra del Fuego. Geografiska Annaler: Vol. 14, No. 1-2, pp. 1-164.

The Patagonian Icefields: A Glaciological Review

Abstract: The Patagonian icefields are the largest mid-latitude ice masses and yet few glaciological data exist for them. The presence of the Andes lying athwart the westerlies makes for a dynamic glacial system with steep balance gradients and west-east equilibrium-line altitude gradients. The overall trend during the 20th century has been glacier retreat. However, whereas most eastern outlets retreated consistently from the beginning of the century, recession on the west began later, has been interrupted by readvances, and most recently has accelerated markedly, reaching higher mean rates of retreat than those on the east. This contrast may result from a predominantly precipitation-controlled mass-balance regime in the west and a dominant temperature control in the east. Superimposed on these contrasts is the anomalous behavior of certain calving glaciers, the oscillations of which contrast in magnitude, timing and sign with each other and with noncalving glaciers, and which in many cases do not relate directly to climate change. Two large calving outlets are at or near their Neoglacial maxima. The tantalizing fragments of information that exist suggest that there is a rich glaciological source to be mined in Patagonia yielding insights into glacioclimatic interactions, calving dynamics, Holocene climate change and the role ofmore » topography in controlling glacier behavior. 118 refs., 13 figs., 2 tabs.« less

Recent Vegetation Changes along the Forest/Steppe Ecotone of Northern Patagonia

Abstract: In northern Patagonia over a west-to-east distance of approximately 50 km, the vegetation changes from Nothofagus rainforests through woodlands of Austrocedrus chilensis to steppe dominated by bunchgrasses and shrubs. Analysis of tree population age structures and photographic comparisons of the forest/steppe margin over the past century indicate an expansion of trees into the steppe. Throughout northern Patagonia, Austrocedrus chilensis and other trees began invading the steppe 75 to 100 years ago. During the early decades of the twentieth century, there was also a shift in dominance from bunchgrasses towards spiny shrubs in the steppe near the forest margin. Cessation of frequent burning of the steppe by Indians hunting guanacos at the end of the nineteenth century appears to have permitted the tree invasion. Severe overgrazing by sheep and livestock during the early decades of the present century was the main factor in the shift in dominance from bunchgrasses towards shrubs. European settlemen...

Geochronology and Land-Mammal Biochronology of the Transamerican Faunal Interchange

Abstract: In recent years a combination of biostratigraphic, magnetostratigraphic, and radioisotopic data has been employed to calibrate aspects of the Great American Faunal Interchange (sensu Webb, 1976) that occurred in the late Cenozoic between North and South America. Many of these studies have focused on documenting the time of first appearance of immigrant taxa that participated in the interchange. These multidisciplinary studies were first applied to North American rocks and faunas (e.g., Johnson et al., 1975; Lindsay et al., 1976, 1980, 1984; Opdyke et al., 1977; Tedford, 1981; Galusha et al., 1984) and, subsequently (or concurrently) to those in South America (e.g., Marshall et al., 1977, 1979, 1982,a,b,c, 1983c; Marshall, 1982; MacFadden et al., 1983; Butler et al., 1984).