Browsing by Subject "Indian Ocean"
Results Per Page
Sort Options
Item Open Access A Molecular Phylogenetic Study of Historical Biogeography and the Evolution of Self-Incompatibility RNases in Indian Ocean Coffea (Rubiaceae)(2010) Nowak, Michael DennisA fundamental goal in the diverse field of evolutionary biology is reconstructing the historical processes that facilitated lineage diversification and the current geographic distribution of species diversity. Oceanic islands provide a view of evolutionary processes that may otherwise be obscured by the complex biogeographic histories of continental systems, and have thus provided evolutionary biology with some of its most lasting and significant theories. The Indian Ocean island of Madagascar is home to an extraordinarily diverse and endemic biota, and reconstructing the historical processes responsible for this diversity has consumed countless academic careers. While the flowering plant genus Coffea is but one lineage contributing to Madagascar's staggering floral diversity, it is representative of the common evolutionary theme of adaptive radiation and local endemism on the island. In this dissertation, I employ the genus Coffea as a model for understanding historical biogeographic processes in the Indian Ocean using methods of molecular phylogenetics and population genetics. In the molecular phylogenetic study of Coffea presented in chapter 2, I show that Madagascan Coffea diversity is likely the product of at least two independent colonization events from Africa, a result that contradicts current hypotheses for the single origin of this group.
Species of Coffea are known to exhibit self-incompatibly, which can have a dramatic affect on the geographic distribution of plant genetic diversity. In chapter 3, I identify the genetic mechanism of self-incompatibility in Coffea as homologous to the canonical eudicot S-RNase system. Baker's Rule suggests that self-incompatible lineages are very unlikely to colonize oceanic islands, and in chapter 4, I test this hypothesis by characterizing the strength of self-incompatibility and comparing S-RNase polymorphism in Coffea populations endemic to isolated Indian Ocean islands (Grande Comore and Mauritius) with that of Madagascan/African species. My findings suggest that while island populations show little evidence for genetic bottleneck in S-RNase allelic diversity, Mauritian endemic Coffea may have evolved a type of "leaky" self-incompatibility allowing self-fertilization at some unknown rate. Through the application of traditional phylogenetic methods and novel data from the self-incompatibly locus, my dissertation contributes a wealth of new information regarding the evolutionary and biogeographic history of Coffea in the Indian Ocean.
Item Open Access A Sea of Debt: Histories of Commerce and Obligation in the Indian Ocean, c. 1850-1940(2012) Bishara, Fahad AhmadThis dissertation is a legal history of debt and economic life in the Indian Ocean during the nineteenth and early-twentieth century. It draws on materials from Bahrain, Muscat, Bombay, Zanzibar and London to examine how members of an ocean-wide commercial society constructed relationships of economic mutualism with one another by mobilizing debt and credit. It further explores how they expressed their debt relationships through legal idioms, and how they mobilized commercial and legal instruments to adapt to the emergence of modern capitalism in the region.
At the same time, it looks at the concomitant development of an Indian Ocean-wide empire of law centered at Bombay, and explores how this Indian Ocean contractual culture encountered an Anglo-Indian legal regime that conceived of legal documents in a radically different way. By mobilizing written deeds in imaginative ways, and by strategically accessing British courts, Indian Ocean merchants were able to shape the contours of this growing legal regime.
Most broadly, the dissertation argues that law and courts became increasingly central to economic life in the Indian Ocean, and that economic actors in the region employed a wide range of different legal strategies in adapting to a changing world of commerce. In the Indian Ocean, as elsewhere, the histories of commerce and law were inextricably intertwined.
Item Open Access “Conquest without Rule: Baloch Portfolio Mercenaries in the Indian Ocean.”(2008) Lutfi, AmeemThe central question this dissertation engages with is why modern states in the Persian Gulf rely heavily on informal networks of untrained and inexperienced recruits from the region of Balochistan, presently spread across Iran, Afghanistan and Pakistan. The answer, it argues, lies in the longue durée phenomenon of Baloch conquering territories abroad but not ruling in their own name. Baloch, I argue, conquered not to establish their sovereign rule, but to open channels of mobility for others. The rise of nation-states and citizen-armies in the twentieth century limited the possibility of Baloch conquest. Yet, the Baloch continued to find a place in the Gulf’s protection industry through historically shaped informal, familial, commercial, and parapolitical transnational networks. Flexible and persistent Baloch networks provided territorially bounded states the ability to access resources outside their boundaries without investment in formal international contracts.
Moreover, this dissertation makes the argument that mobile Baloch operated as ‘Portfolio-Mercenaries’, offering their military-labor to foreign states in order to build their own portfolio of transnational economic, social and political activities. At times these portfolio projects contradicted state interests; at other moments they corroborated them. In either situation, the non-soldiering activities of mercenaries went on to transform the nature of political order in the twentieth-century space of the Indian Ocean. They shaped the nature of international law, carried state order beyond borders, stabilized unpopular regimes, and provided ready sources of labor. Through the example of Baloch Portfolio-Mercenaries, the dissertation thus highlights the thick and enduring relationships between state and transnational networks.
Item Open Access Homes of Capital: Merchants and Mobility across Indian Ocean Gujarat(2015) Pant, KetakiMy dissertation project is an ethnographic history of "homes of capital," merchant homes located in port-cities of Gujarat in various states of splendor and decrepitude, which continue to mark a long history of Indian Ocean cross-cultural trade and exchange. Located in western South Asia, Gujarat is a terraqueous borderland, connecting the western and eastern arenas of the Indian Ocean at the same time as it connects territorial South Asia to maritime markets. Gujarat's dynamic port-cities, including Rander, Surat and Bombay, were and continue to be home to itinerant merchants, many with origins and investments around the littoral from Arabia to Southeast Asia. I argue that rather than a point of origin or return, Gujarat's merchants--many of whom are themselves itinerants from Arabia, Persia and Northwest India--produce and produced Gujarat as a place of arrival and departure: as a crucible of mobility. Gujarat's merchant homes offer a model of transregional engagement produced through the itineraries of merchants who continue to see the regions bordering the Indian Ocean as an extension of their homes.
While historians have generally studied these merchants through the bureaucratic archival records of imperial trade-companies, my project examines the yet-unexplored archives that collect around historic merchant homes. Curated by a current generation of merchant families who continue to ply old routes at the same time as they forge new ones, merchant homes offer a way to study oceanic connections from the inside-out and capital in cultural terms. Drawing on a rich array of collective and personal ethnographic and historical materials within homes, including architectural form; material objects; private journals, datebooks and travelogues; visual media; and merchant memory, my project brings into view a mercantile space-time on ocean's edge. Though emerging from concrete ethnographic and historical materials that cast powerful light on Gujarati merchant mobility in the British Empire over the course of the nineteenth and first half of the twentieth century, my account of "homes of capital" pursues mercantile imaginings across long tranches of time routed through the political economic transformations of the period stretching between the tenth and twelfth centuries. I argue that these non-linear imaginings structured by oceanic mobility exist in the interstices of imperial, colonial and post-colonial state space.
Placing merchant imaginings at the center of my analysis, my dissertation argues that the Indian Ocean was and continues to be a key spatial and temporal motivator of mercantile life. My project makes explicit the terms of this intimacy through a "chronotopic" study of merchant homes across Gujarat. Homes of capital in its broadest sense also include mercantile buildings like bridges, libraries, funerary sites, mosques and community centers, which, when linked together, created shaded pathways across the region in the face of an emergent colonial state centered on Bombay. In doing so I also reveal a more capacious mercantile subject, showing how new kinds of nineteenth-century circulations of Gujarati-language texts across merchant libraries, reading rooms and homes were embedded in and shaped a longue durée oceanic topography. My project documents the range of visual, material, textual and affective modes from within this topography through which merchants gave and give form to such a terraqueous region.
Item Open Access Regulating the Ocean: Piracy and Protection along the East African Coast(2014) Dua, JatinFrom 2008-2012, a dramatic upsurge in incidents of maritime piracy in the Western Indian Ocean led to renewed global attention to this region: including the deployment of multi national naval patrols, attempts to prosecute suspected pirates, and the development of financial interdiction systems to track and stop the flow of piracy ransoms. Largely seen as the maritime ripple effect of anarchy on land, piracy has been slotted into narratives of state failure and problems of governance and criminality in this region.
This view fails to account for a number of factors that were crucial in making possible the unprecedented rise of Somali piracy and its contemporary transformation. Instead of an emphasis on failed states and crises of governance, my dissertation approaches maritime piracy within a historical and regional configuration of actors and relationships that precede this round of piracy and will outlive it. The story I tell in this work begins before the contemporary upsurge of piracy and closes with a foretaste of the itineraries beyond piracy that are being crafted along the East African coast.
Beginning in the world of port cities in the long nineteenth century, my dissertation locates piracy and the relationship between trade, plunder, and state formation within worlds of exchange, including European incursions into this oceanic space. Scholars of long distance trade have emphasized the sociality engendered through commerce and the centrality of idioms of trust and kinship in structuring mercantile relationships across oceanic divides. To complement this scholarship, my work brings into view the idiom of protection: as a claim to surety, a form of tax, and a moral claim to authority in trans-regional commerce.
To build this theory of protection, my work combines archival sources with a sustained ethnographic engagement in coastal East Africa, including the pirate ports of Northern Somalia, and focuses on the interaction between land-based pastoral economies and maritime trade. This connection between land and sea calls attention to two distinct visions of the ocean: one built around trade and mobility and the other built on the ocean as a space of extraction and sovereignty. Moving between historical encounters over trade and piracy and the development of a national maritime economy during the height of the Somali state, I link the contemporary upsurge of maritime piracy to the confluence of these two conceptualizations of the ocean and the ideas of capture, exchange, and redistribution embedded within them.
The second section of my dissertation reframes piracy as an economy of protection and a form of labor implicated within other legal and illegal economies in the Indian Ocean. Based on extensive field research, including interviews with self-identified pirates, I emphasize the forms of labor, value, and risk that characterize piracy as an economy of protection. The final section of my dissertation focuses on the diverse international, regional, and local responses to maritime piracy. This section locates the response to piracy within a post-Cold War and post-9/11 global order and longer attempts to regulate and assuage the risks of maritime trade. Through an ethnographic focus on maritime insurance markets, navies, and private security contractors, I analyze the centrality of protection as a calculation of risk and profit in the contemporary economy of counter-piracy.
Through this focus on longer histories of trade, empire, and regulation my dissertation reframes maritime piracy as an economy of protection straddling boundaries of land and sea, legality and illegality, law and economy, and history and anthropology.
Item Open Access The evolutionary origin of Indian Ocean tortoises (Dipsochelys).(Mol Phylogenet Evol, 2002-08) Palkovacs, EP; Gerlach, J; Caccone, AToday, the only surviving wild population of giant tortoises in the Indian Ocean occurs on the island of Aldabra. However, giant tortoises once inhabited islands throughout the western Indian Ocean. Madagascar, Africa, and India have all been suggested as possible sources of colonization for these islands. To address the origin of Indian Ocean tortoises (Dipsochelys, formerly Geochelone gigantea), we sequenced the 12S, 16S, and cyt b genes of the mitochondrial DNA. Our phylogenetic analysis shows Dipsochelys to be embedded within the Malagasy lineage, providing evidence that Indian Ocean giant tortoises are derived from a common Malagasy ancestor. This result points to Madagascar as the source of colonization for western Indian Ocean islands by giant tortoises. Tortoises are known to survive long oceanic voyages by floating with ocean currents, and thus, currents flowing northward towards the Aldabra archipelago from the east coast of Madagascar would have provided means for the colonization of western Indian Ocean islands. Additionally, we found an accelerated rate of sequence evolution in the two Malagasy Pyxis species examined. This finding supports previous theories that shorter generation time and smaller body size are related to an increase in mitochondrial DNA substitution rate in vertebrates.