Chris S Duvall
Biographic Data
| ID | 1687755 |
|---|---|
| NAME | Chris S Duvall |
| GIVEN NAMES | Chris S |
| FAMILY NAME | Duvall |
| SIGNATURE | DUVALL C S |
| AFFILIATIONS | University of New Mexico |
| VERIFIED | No |
| TOTAL WORKS | 20 |
| TOTAL CITATIONS | 179 |
| WORKS AS AUTHOR | 20 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2003 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 5 |
Cannabis et al
Historian Alfred Crosby developed the concept of “portmanteau biota”—the organisms that accompany a human migration—to analyse European expansion in the Atlantic World. This concept has not been used to understand enslaved African migrations. I identify elements of the portmanteau biota of people whom slavers called “Congoes.” At least five other organisms accompanied these people from Central Africa: Cannabis , manioc, cattle, the tsetse fly, an…
Agrobiodiversity threats amid expanding woody monocultures and hopes nourished through farmer and food movements in the Mediterranean
The high biodiversity of food and agriculture (agrobiodiversity) in the Mediterranean exists in rapidly changing landscapes and food systems. The first goal of this Commentary is to explain how agrobiodiverse Mediterranean food cereals and legumes are threatened by the accelerating expansion and intensification of monocultures of woody crops—principally olive, nut, grape, and citrus monocrops—in landscapes of the western Mediterranean (Spain, Mor…
Cannabis
Quantitative estimates of glacial refugia for chimpanzees ( Pan troglodytes ) since the Last Interglacial (120,000 BP)
Paleoclimate reconstructions have enhanced our understanding of how past climates have shaped present‐day biodiversity. We hypothesize that the geographic extent of Pleistocene forest refugia and suitable habitat fluctuated significantly in time during the late Quaternary for chimpanzees ( Pan troglodytes ). Using bioclimatic variables representing monthly temperature and precipitation estimates, past human population density data, and an extensi…
Urbanization and agrobiodiversity
Expanding urbanization affects food biodiversity and broader agrobiodiversity, which are essential nutrition and ecosystem resources for sustainable development but are threatened globally. The increasingly influential nexus of urbanization-agrobiodiversity interactions has not been systematically researched. Here we design an interdisciplinary perspective to identify and understand the bidirectional interactions of agrobiodiversity in four major…
A brief agricultural history of cannabis in Africa, from prehistory to canna-colony
This article outlines four historical phases of cannabis cultivation in Africa. First, during the plant’s initial dispersal across the continent, people developed diverse cultures of cannabis farming and use. Second, several formal markets for cannabis developed under colonial regimes, although colonialists more widely suppressed the crop. Third, twentieth-century drug laws changed the economics of production, causing cannabis farming to become p…
Cannabis and Tobacco in Precolonial and Colonial Africa
Cannabis and tobacco have longstanding roles in African societies. Despite botanical and pharmacological dissimilarities, it is worthwhile to consider tobacco and cannabis together because they have been for centuries the most commonly and widely smoked drug plants. Cannabis, the source of marijuana and hashish, was introduced to eastern Africa from southern Asia, and dispersed widely within Africa mostly after 1500. In sub-Saharan Africa, cannab…
Drug laws, bioprospecting and the agricultural heritage of Cannabis in Africa
For centuries across most of Africa, farmers have valued Cannabis for multiple reasons. Historic crop selection produced genetic diversity that commercial bioprospectors value for marijuana production. African colonial and post-colonial administrations devalued the crop, enacted Cannabis controls earlier than most locations worldwide, and excluded Cannabis from agricultural development initiatives. Public agricultural institutions exclude Cannabi…
African Fire Cultures, Cattle Ranching, and Colonial Landscape Transformations in the Neotropics
Fire regimes emerge partly from human activities that reflect cultural‐ecological knowledge of the relationships among fire, vegetation, grazing, climate, and other variables, as well as social relations. More knowledge of such "fire cultures," past and present, therefore remains necessary to better understand the causes and persistent consequences of landscape burning. In the neotropics, people have used fire for centuries to manage livestock pa…
Cannabis
CANNABIS: Ethnobotany and Evolution. By Robert A. Clarke and Mark D. Merlin. xviii and 434 pp.; maps, ills., bibliog., index. Berkeley: University of California Press, 2013. $95.00 (cloth), ISBN 97
Exploring imaginary worlds
Black Ranching Frontiers
Intervention
A recent opinion piece rekindled debate as to whether geography's current interdisciplinary make-up is a historical relic or an actual and potential source of intellectual vitality. Taking the latter position, we argue here for the benefits of sustained integration of physical and critical human geography. For reasons both political and pragmatic, we term this area of intermingled research and practice critical physical geography (CPG). CPG combi…
Biocomplexity from the Ground Up
Most studies of vegetation in African savannas have adopted reductionist approaches to research, mostly by looking at only “natural” or “anthropogenic” spaces in focal landscapes. Few have considered how social and biophysical factors interact to create vegetation patterns across landscapes. More holistic understanding of pattern–process relationships across savanna landscapes as wholes is needed to manage the ecological connections of global and…
The evolving narrative of the Darfur conflict as represented in The New York Times and The Washington Post, 2003–2009
In the Shadow of Slavery
A maroon legacy? Sketching African contributions to live fencing practices in early Spanish America
Geographers have generally neglected African influences in attempting to understand the historical development of cultural landscapes in the tropical and subtropical Americas. In this paper, I analyze the early post‐Columbian history of live fencing in the Americas, focusing on Spanish‐held areas in the 1500s and 1600s. Live fences characterize many modern landscapes in the tropical and subtropical Americas, but the historical geography of these …
Classifying physical geographic features
This article argues that understanding how people classify physical geographic features is necessary for identifying fundamental, cross‐cultural geographic concepts that are required for successful communication of geographic knowledge. Academic geographers have not given sufficient attention to systems of local geographic knowledge, even though promising theoretical frameworks exist, particularly in the field of ethnoecology. However, the resear…
On the origin of the tree Spondias mombin in Africa
Symbols, not data
Historical analysis of botanical literature concerning the treesGilletiodendron glandulosumandGuibourtia copalliferain Mali's Manding Plateau reveals that the dominant representation of these plants has helped to perpetuate colonial-era theories of vegetation history, African land management, and natural resource politics in West Africa. The French botanist Aubréville described these plants as proof of the theory of vegetation history that blamed…
Intervention
A recent opinion piece rekindled debate as to whether geography's current interdisciplinary make-up is a historical relic or an actual and potential source of intellectual vitality. Taking the latter position, we argue here for the benefits of sustained integration of physical and critical human geography. For reasons both political and pragmatic, we term this area of intermingled research and practice critical physical geography (CPG). CPG combi…
The evolving narrative of the Darfur conflict as represented in The New York Times and The Washington Post, 2003–2009
African Fire Cultures, Cattle Ranching, and Colonial Landscape Transformations in the Neotropics
Fire regimes emerge partly from human activities that reflect cultural‐ecological knowledge of the relationships among fire, vegetation, grazing, climate, and other variables, as well as social relations. More knowledge of such "fire cultures," past and present, therefore remains necessary to better understand the causes and persistent consequences of landscape burning. In the neotropics, people have used fire for centuries to manage livestock pa…
Biocomplexity from the Ground Up
Most studies of vegetation in African savannas have adopted reductionist approaches to research, mostly by looking at only “natural” or “anthropogenic” spaces in focal landscapes. Few have considered how social and biophysical factors interact to create vegetation patterns across landscapes. More holistic understanding of pattern–process relationships across savanna landscapes as wholes is needed to manage the ecological connections of global and…
A brief agricultural history of cannabis in Africa, from prehistory to canna-colony
This article outlines four historical phases of cannabis cultivation in Africa. First, during the plant’s initial dispersal across the continent, people developed diverse cultures of cannabis farming and use. Second, several formal markets for cannabis developed under colonial regimes, although colonialists more widely suppressed the crop. Third, twentieth-century drug laws changed the economics of production, causing cannabis farming to become p…
A maroon legacy? Sketching African contributions to live fencing practices in early Spanish America
Geographers have generally neglected African influences in attempting to understand the historical development of cultural landscapes in the tropical and subtropical Americas. In this paper, I analyze the early post‐Columbian history of live fencing in the Americas, focusing on Spanish‐held areas in the 1500s and 1600s. Live fences characterize many modern landscapes in the tropical and subtropical Americas, but the historical geography of these …
Classifying physical geographic features
This article argues that understanding how people classify physical geographic features is necessary for identifying fundamental, cross‐cultural geographic concepts that are required for successful communication of geographic knowledge. Academic geographers have not given sufficient attention to systems of local geographic knowledge, even though promising theoretical frameworks exist, particularly in the field of ethnoecology. However, the resear…
On the origin of the tree Spondias mombin in Africa
Symbols, not data
Historical analysis of botanical literature concerning the treesGilletiodendron glandulosumandGuibourtia copalliferain Mali's Manding Plateau reveals that the dominant representation of these plants has helped to perpetuate colonial-era theories of vegetation history, African land management, and natural resource politics in West Africa. The French botanist Aubréville described these plants as proof of the theory of vegetation history that blamed…
Drug laws, bioprospecting and the agricultural heritage of Cannabis in Africa
For centuries across most of Africa, farmers have valued Cannabis for multiple reasons. Historic crop selection produced genetic diversity that commercial bioprospectors value for marijuana production. African colonial and post-colonial administrations devalued the crop, enacted Cannabis controls earlier than most locations worldwide, and excluded Cannabis from agricultural development initiatives. Public agricultural institutions exclude Cannabi…
Black Ranching Frontiers
Cannabis and Tobacco in Precolonial and Colonial Africa
Cannabis and tobacco have longstanding roles in African societies. Despite botanical and pharmacological dissimilarities, it is worthwhile to consider tobacco and cannabis together because they have been for centuries the most commonly and widely smoked drug plants. Cannabis, the source of marijuana and hashish, was introduced to eastern Africa from southern Asia, and dispersed widely within Africa mostly after 1500. In sub-Saharan Africa, cannab…
Cannabis
Symbols, not data
Historical analysis of botanical literature concerning the treesGilletiodendron glandulosumandGuibourtia copalliferain Mali's Manding Plateau reveals that the dominant representation of these plants has helped to perpetuate colonial-era theories of vegetation history, African land management, and natural resource politics in West Africa. The French botanist Aubréville described these plants as proof of the theory of vegetation history that blamed…
On the origin of the tree Spondias mombin in Africa
Classifying physical geographic features
This article argues that understanding how people classify physical geographic features is necessary for identifying fundamental, cross‐cultural geographic concepts that are required for successful communication of geographic knowledge. Academic geographers have not given sufficient attention to systems of local geographic knowledge, even though promising theoretical frameworks exist, particularly in the field of ethnoecology. However, the resear…
A maroon legacy? Sketching African contributions to live fencing practices in early Spanish America
Geographers have generally neglected African influences in attempting to understand the historical development of cultural landscapes in the tropical and subtropical Americas. In this paper, I analyze the early post‐Columbian history of live fencing in the Americas, focusing on Spanish‐held areas in the 1500s and 1600s. Live fences characterize many modern landscapes in the tropical and subtropical Americas, but the historical geography of these …
The evolving narrative of the Darfur conflict as represented in The New York Times and The Washington Post, 2003–2009
In the Shadow of Slavery
Biocomplexity from the Ground Up
Most studies of vegetation in African savannas have adopted reductionist approaches to research, mostly by looking at only “natural” or “anthropogenic” spaces in focal landscapes. Few have considered how social and biophysical factors interact to create vegetation patterns across landscapes. More holistic understanding of pattern–process relationships across savanna landscapes as wholes is needed to manage the ecological connections of global and…
Exploring imaginary worlds
Black Ranching Frontiers
Intervention
A recent opinion piece rekindled debate as to whether geography's current interdisciplinary make-up is a historical relic or an actual and potential source of intellectual vitality. Taking the latter position, we argue here for the benefits of sustained integration of physical and critical human geography. For reasons both political and pragmatic, we term this area of intermingled research and practice critical physical geography (CPG). CPG combi…
Cannabis
CANNABIS: Ethnobotany and Evolution. By Robert A. Clarke and Mark D. Merlin. xviii and 434 pp.; maps, ills., bibliog., index. Berkeley: University of California Press, 2013. $95.00 (cloth), ISBN 97
Cannabis and Tobacco in Precolonial and Colonial Africa
Cannabis and tobacco have longstanding roles in African societies. Despite botanical and pharmacological dissimilarities, it is worthwhile to consider tobacco and cannabis together because they have been for centuries the most commonly and widely smoked drug plants. Cannabis, the source of marijuana and hashish, was introduced to eastern Africa from southern Asia, and dispersed widely within Africa mostly after 1500. In sub-Saharan Africa, cannab…
Drug laws, bioprospecting and the agricultural heritage of Cannabis in Africa
For centuries across most of Africa, farmers have valued Cannabis for multiple reasons. Historic crop selection produced genetic diversity that commercial bioprospectors value for marijuana production. African colonial and post-colonial administrations devalued the crop, enacted Cannabis controls earlier than most locations worldwide, and excluded Cannabis from agricultural development initiatives. Public agricultural institutions exclude Cannabi…
African Fire Cultures, Cattle Ranching, and Colonial Landscape Transformations in the Neotropics
Fire regimes emerge partly from human activities that reflect cultural‐ecological knowledge of the relationships among fire, vegetation, grazing, climate, and other variables, as well as social relations. More knowledge of such "fire cultures," past and present, therefore remains necessary to better understand the causes and persistent consequences of landscape burning. In the neotropics, people have used fire for centuries to manage livestock pa…
A brief agricultural history of cannabis in Africa, from prehistory to canna-colony
This article outlines four historical phases of cannabis cultivation in Africa. First, during the plant’s initial dispersal across the continent, people developed diverse cultures of cannabis farming and use. Second, several formal markets for cannabis developed under colonial regimes, although colonialists more widely suppressed the crop. Third, twentieth-century drug laws changed the economics of production, causing cannabis farming to become p…
Quantitative estimates of glacial refugia for chimpanzees ( Pan troglodytes ) since the Last Interglacial (120,000 BP)
Paleoclimate reconstructions have enhanced our understanding of how past climates have shaped present‐day biodiversity. We hypothesize that the geographic extent of Pleistocene forest refugia and suitable habitat fluctuated significantly in time during the late Quaternary for chimpanzees ( Pan troglodytes ). Using bioclimatic variables representing monthly temperature and precipitation estimates, past human population density data, and an extensi…
Urbanization and agrobiodiversity
Expanding urbanization affects food biodiversity and broader agrobiodiversity, which are essential nutrition and ecosystem resources for sustainable development but are threatened globally. The increasingly influential nexus of urbanization-agrobiodiversity interactions has not been systematically researched. Here we design an interdisciplinary perspective to identify and understand the bidirectional interactions of agrobiodiversity in four major…
Cannabis
Agrobiodiversity threats amid expanding woody monocultures and hopes nourished through farmer and food movements in the Mediterranean
The high biodiversity of food and agriculture (agrobiodiversity) in the Mediterranean exists in rapidly changing landscapes and food systems. The first goal of this Commentary is to explain how agrobiodiverse Mediterranean food cereals and legumes are threatened by the accelerating expansion and intensification of monocultures of woody crops—principally olive, nut, grape, and citrus monocrops—in landscapes of the western Mediterranean (Spain, Mor…
Cannabis et al
Historian Alfred Crosby developed the concept of “portmanteau biota”—the organisms that accompany a human migration—to analyse European expansion in the Atlantic World. This concept has not been used to understand enslaved African migrations. I identify elements of the portmanteau biota of people whom slavers called “Congoes.” At least five other organisms accompanied these people from Central Africa: Cannabis , manioc, cattle, the tsetse fly, an…
Geography (16 works) · Biology (10 works) · Ecology (10 works) · Archaeology (8 works) · Colonialism, slavery, and trade (6 works) · Ecology (6 works) · History (6 works) · Agriculture (5 works) · Cannabis (5 works) · History (5 works)