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Articles 31 - 60 of 68

Full-Text Articles in Physical Sciences and Mathematics

Coastal Stream Salinity And Its Impacts On Pemba Agriculture, Sara Mccormack Oct 2019

Coastal Stream Salinity And Its Impacts On Pemba Agriculture, Sara Mccormack

Independent Study Project (ISP) Collection

The extent of saltwater inundation of coastal streams was assessed on Pemba Island near agricultural areas in northeastern and northwestern regions of the island. Conductivity and pH were measured from water samples collected at various distances along the stream to determine the extent of salinity at different points in the tidal cycle. This salinity data, as well as the context of recent weather events, runoff, and geological characteristics of the region were used to determine the primary factors that influence changes in surface water salinity. The primary factor that influences surface water salinity was determined to be changes in stream …


The Relationship Between Forest Management And Stream Discharge In Mazumbai And Baga Ii Forest Reserves, Tanga Region, Tanzania, Shannon Duffy Oct 2019

The Relationship Between Forest Management And Stream Discharge In Mazumbai And Baga Ii Forest Reserves, Tanga Region, Tanzania, Shannon Duffy

Independent Study Project (ISP) Collection

Deforestation is known to alter hydrology by reducing interception, transpiration and infiltration capacity, and increasing runoff which all leads to higher stream discharge. For rural Tanzanian communities, surface water resources are crucial for meeting basic needs, so the integrity of headwater catchments need to be maintained to ensure their reliability. The objectives of this study were to a) map the streams in the two forests because none currently exist and b) determine the effect of deforestation on discharge variability. Over fifteen days of data collection, this study analyzed variability of discharge and the degree of correlation between discharge and rainfall …


Activity, Distribution, And Density Of Brown Rats (Rattus Norvegicus) On Misali Island, Pemba Island, Tanzania, Raegan Hasselbring Oct 2019

Activity, Distribution, And Density Of Brown Rats (Rattus Norvegicus) On Misali Island, Pemba Island, Tanzania, Raegan Hasselbring

Independent Study Project (ISP) Collection

This project investigated the activity, distribution, and density of brown rats (R. norvegicus) on Misali Island, Pemba. These factors were studied through field observations conducted over a 21-day observation period. Brown rats were highest in density around areas of human activity, attracted to the detritus, an ample food source. Although highest in density in these areas, a greater total population of brown rats was distributed in the coastal forest due to its proportion of area on the overall island. In the forest, the rats were most active along the coastal sections for unknown and unexplored reasons – possibly due to …


It's Essential: The Ylang-Ylang Trade On Nosy Be, James Sleigh Apr 2019

It's Essential: The Ylang-Ylang Trade On Nosy Be, James Sleigh

Independent Study Project (ISP) Collection

This paper attempts to describe the production and sale of Ylang-Ylang from cultivation of the tree to the export of the flower, and examines the roles and power that each stakeholder has in the value chain. From there, the paper will look at issues associated with the trade; namely of the threat to the terrestrial ecosystem and the profit imbalance in the industry. Finally, the paper turns to potential strategies to resolve the previously stated issues associated with the production and sale of Ylang-Ylang. As a whole I hope that the paper can be seen as a rough survey of …


Women In Conservation: A Study Of Effective Community-Based Conservation And The Empowerment Of Women In Tanzania, Ruby Krietzman Apr 2019

Women In Conservation: A Study Of Effective Community-Based Conservation And The Empowerment Of Women In Tanzania, Ruby Krietzman

Independent Study Project (ISP) Collection

The subject of this study is women involved in Community-Based Conservation (CBC) from areas surrounding Lake Manyara National Park, Ngorongoro Conservation Area, and Mount Kilimanjaro National Park. CBC is a participatory process between people and organizations who have responsibilities affecting conservation. Communities surrounding protected conservation areas tend to experience high levels of poverty and marginalization due to exclusive conservation policies and the lack of co-management principles. Although tourism revenue is abundant in these locations, the benefits rarely impact local community members that disproportionately experience the effects of conservation. This is especially true for women who hold the responsibilities of collecting …


An Assessment Of Coral Bleaching Near Misali Island, Tanzania, Danielle Kulick Apr 2019

An Assessment Of Coral Bleaching Near Misali Island, Tanzania, Danielle Kulick

Independent Study Project (ISP) Collection

Coral bleaching and reef health were studied in fringing reefs around Misali Island, Tanzania. Over a 28-day period, 1,329 coral colonies were surveyed along 31 transects. For each colony, data was collected on growth form and bleaching severity. No significant differences in bleaching frequency or intensity were observed between the resource extraction and non-extraction zones protected under the Pemba Channel Marine Conservation Area (PECCA). Bleaching was observed to be extensive across all coral growth forms and was found to collectively increase over the study period in frequency and intensity. This study indicates the vulnerability of Misali coral reefs to bleaching …


The House Of The Fish: Collaborative Coral Reef Awareness Project On Nosy Be, Meghan Hurley Apr 2019

The House Of The Fish: Collaborative Coral Reef Awareness Project On Nosy Be, Meghan Hurley

Independent Study Project (ISP) Collection

The purpose of this project was to initiate a place-based coral reef education project, with the ultimate goal of improved localized conservation efforts in the face of growing global threats. Three principal groups that interact with coral reefs on Nosy Be were interviewed: fishers, tourist guides, and conservationists. Research was conducted on the biology of coral reefs, and on the most prominent threats facing coral reefs in the Indian Ocean and around Nosy Be. Information and direct quotes from interviews, and the results of research, were incorporated into a photographic journal entitled "In the House of the Fish" or "An-tragno …


Livelihoods Of The People Of Mazumbai: A Collection Of Stories And Portraits, Tanga Region, Tanzania, Joseph Baldus Oct 2018

Livelihoods Of The People Of Mazumbai: A Collection Of Stories And Portraits, Tanga Region, Tanzania, Joseph Baldus

Independent Study Project (ISP) Collection

Despite rapid urbanization in Tanzania, agriculture remains central to the nation, the economy, and the livelihoods of a large portion of the population. Smallholder farmers account for the vast majority of agricultural production, yet are an extremely vulnerable population due to poverty, single-sourced income, and climate-dependency for both subsistence and cash-crop agriculture (Rapsomanikis, 2015). This report explores these dynamic rural livelihoods through interviews and portrait photographs in a case study on Mazumbai, Tanga region, Tanzania. Semi-structured interviews explore the people’s modes of economic subsistence, domestic lives, education, challenges, and life stories. Excerpts from these interviews combined with portrait photographs create …


Correlations Between Reef Health And Vertical Zonation On Ushongo Village Reef And Fungu Zinga Reef, Daniel Gates Oct 2018

Correlations Between Reef Health And Vertical Zonation On Ushongo Village Reef And Fungu Zinga Reef, Daniel Gates

Independent Study Project (ISP) Collection

While the existence of vertical zonation on coral reefs is well-known, the driving mechanisms and the influence each has is not clear. This study seeks to investigate the influence of reef health on vertical zonation. Reef health is used as a potential factor since it is essentially a broad description of reef diversity. Therefore, a healthy reef which is very diverse is likely to have more and different interspecies interactions than an unhealthy one. This project investigates whether these altered interactions results in different depth distributions of various coral types, categorized broadly by colony shape. Reef health did not seem …


Pemban Farmer Agency In Adapting To Climate Change, Rachael Hood Oct 2018

Pemban Farmer Agency In Adapting To Climate Change, Rachael Hood

Independent Study Project (ISP) Collection

As a result of climate change, agricultural societies will be challenged by a variety of altered conditions, including increased severe weather events, saltwater intrusion, pest and disease outbreaks, and higher temperatures. The island of Pemba, in the Zanzibar archipelago, is home to many small-scale agriculturalists. During this study, I interviewed Pemban farmers in the districts of Wete and Micheweni about their awareness of the impacts of climate change and the mitigation strategies that they have implemented. The results from Pemba were compared to relevant academic literature regarding climate change to explore whether disparities exist between models of climate change in …


The Influence Of Habitat Preference On Longitudinal Population Composition And Distribution Of Groupers (Serranidae) In Chumbe Island Coral Park, Zanzibar Tanzania, Caroline Daley Oct 2018

The Influence Of Habitat Preference On Longitudinal Population Composition And Distribution Of Groupers (Serranidae) In Chumbe Island Coral Park, Zanzibar Tanzania, Caroline Daley

Independent Study Project (ISP) Collection

A survey of six common grouper (Serranidae) species was conducted on both the western protected and eastern unprotected reefs around Chumbe Island. Species, estimated maturity, and fundamental niche and general habitat preference was extrapolated based on observed realized niche and qualified according to substrate, depth, slope position, and general reef region. Abundance, biomass density, and biodiversity of Serranid populations were compared among locations on the reef with habitat preference in mind in order to best assess how habitat influences population composition, distribution, and health. The results of this study provide depth to previous research on the protected reef and indicate …


"Waste Is Not Just Waste Anymore": Deconstructing The Relationship Between Sustainable Waste Prevention And Individual Socio-Demographic Characteristics (The Juxtaposition Of Ushongo Mtoni Village And Moshi Urban, Tanzania), Mahalia Smith Jul 2018

"Waste Is Not Just Waste Anymore": Deconstructing The Relationship Between Sustainable Waste Prevention And Individual Socio-Demographic Characteristics (The Juxtaposition Of Ushongo Mtoni Village And Moshi Urban, Tanzania), Mahalia Smith

Independent Study Project (ISP) Collection

I am going to tell you a story about humans — their lives, livelihoods, environments, and their individual relationships to sustainable waste prevention. As developing countries, such as Tanzania experience economic growth, waste overflow and proper waste disposal become even more arduous challenges. Thus, it is becoming increasingly important to explore sustainable solutions such as waste prevention. Through conducting semi-structured interviews in two distinctly unique locations, Moshi Urban of the Kilimanjaro Region and Ushongo Village on the coast of Tanga Region, Tanzania, I explored how levels of awareness and involvement in sustainable waste prevention practices, specifically reducing, reusing, and recycling, …


A Disappearing Island: An Impact Assessment Of Coastal Erosion On The Mnemba Island House Reef, Zanzibar, Kat Grellman Apr 2018

A Disappearing Island: An Impact Assessment Of Coastal Erosion On The Mnemba Island House Reef, Zanzibar, Kat Grellman

Independent Study Project (ISP) Collection

Sedimentation is one of the greatest threats reefs face today due to climate changeinduced sea level rise. Mnemba Island has experienced rampant coastal erosion as a combined result of global processes and local anthropogenic impacts, which has in turn caused severe reef degradation. The house reef was surveyed over a 3-week period to determine the amount of sediment deposited on the reef and the impact of this sedimentation on coral reef health. Sediment traps were deployed to measure the sediment flux rate. The line-intercept transect method was used to measure the benthos cover of the reef and point-transect method was …


Let’S Talk Takataka: Impacts Of Plastic In The Stone Town Harbor Area, Zanzibar, Cj O’Brien Apr 2018

Let’S Talk Takataka: Impacts Of Plastic In The Stone Town Harbor Area, Zanzibar, Cj O’Brien

Independent Study Project (ISP) Collection

Plastic pollution has become an anthropogenic crisis worldwide. In the Stone Town Harbor area in particular, consumerism, population growth, tourism and a deficient municipal waste management system contribute to alarming amounts of mismanaged plastic that enter the ocean. This is devastating for the diverse marine ecosystem that provides valuable resources to its flora and fauna and to it human inhabitants. In this study, micro-plastic at the sea surface as well as plastic on coastal beaches was quantified to determine the effects of plastic pollution in the area by use of a standard plankton net methodology. This study contributed to the …


Ethically Sourced Vanilla: Certifications In The Production Of Vanilla In The Sava Region Of Madagascar, Maisie Campbell Apr 2018

Ethically Sourced Vanilla: Certifications In The Production Of Vanilla In The Sava Region Of Madagascar, Maisie Campbell

Independent Study Project (ISP) Collection

Vanilla is an orchid whose beans are harvested after ten months on the vine. About eighty percent of the world’s vanilla is produced in Madagascar and the SAVA region is the capital of vanilla production within the country. The changing demand of vanilla, damage from cyclones, and the three-year development of the vanilla plants before they begin producing beans causes a boom and bust cycle of prices of vanilla. Some organizations have tried to ameliorate the problems these cycles and low prices pose to vanilla farmers by creating certifications for companies that promise that they will not pay less than …


A Comparative Tree Survey Of Disturbed And Primary Forest Areas: Ngezi-Vumawimbi Nature Forest Reserve, Pemba Island, Skyler Smith Apr 2018

A Comparative Tree Survey Of Disturbed And Primary Forest Areas: Ngezi-Vumawimbi Nature Forest Reserve, Pemba Island, Skyler Smith

Independent Study Project (ISP) Collection

Off the coast of Tanzania, in East Africa, the island of Pemba was once covered in pristine forest despite having a small, agriculturally-based human population. Beginning around 1840, however, the island began to be deforested on a large scale for colonial plantations of cash crops such as cloves and rubber as well as for small-scale farms and firewood. Ngezi-Vumawimbi Nature Forest Reserve covers about 1,440 hectares and is all that remains of these once vast forests. The reserve was officially designated in 1957 but timber extraction and exploitation there continued until the late 1980s. In the early 1970s, a large …


Selection Perception: Views On The Theory Of Evolution Among Residents Of Moshi, Tanzania, Robin Waterman Apr 2018

Selection Perception: Views On The Theory Of Evolution Among Residents Of Moshi, Tanzania, Robin Waterman

Independent Study Project (ISP) Collection

The theory of evolution is a major tenet of biological science and has many practical applications, particularly in agriculture, medicine, and conservation. Nevertheless, there is significant opposition to the theory and its incorporation into school curricula, largely on religious grounds. This disconnect between public opinion and scientific opinion has been studied at length in the US and to some extent in other industrialized nations, but little is known about the issue in other communities around the world. This paper will use the town of Moshi, Tanzania as a case study in community views and knowledge about the theory of evolution. …


Interacting With The Trail: A Comprehensive Approach To Developing An Environmental Education Program For Agnolakely Private Nature Reserve, Claire Hamilton Apr 2018

Interacting With The Trail: A Comprehensive Approach To Developing An Environmental Education Program For Agnolakely Private Nature Reserve, Claire Hamilton

Independent Study Project (ISP) Collection

Madagascar is a diverse island, biologically and geographically. This has led to the development of endemic species and high biodiversity within the landscape. Unfortunately, due to poverty, extraction of natural resources, and a growing population, these species have become threatened. Agnolakely, is a private nature reserve, located in eastern Madagascar that is trying to combat these challenges through reforestation projects and land protection. Agnolakely is not only of ecological value, but is also integral in the community structure. As Agnolakely expands it has become essential to implement education and outreach for the reserve. This study was designed to collect biological …


Community Management And Governance Of Comatsa-Sud New Protected Area (Ambalamanasy Ii Commune), Allison Tennant Oct 2017

Community Management And Governance Of Comatsa-Sud New Protected Area (Ambalamanasy Ii Commune), Allison Tennant

Independent Study Project (ISP) Collection

Community-based natural resource management is an increasingly more popular choice for governments to delegate power back to local communities to conserve the resources they rely on. In Madagascar, where much of the rural population provides for their livelihoods by using natural resources, this governance structure, in cooperation with delegated manager for assistance, presents an opportunity for economic development in cooperation with conservation efforts. This paper aims to better understand the role of community, NGO, and governmental actors in creating and executing community management structures. Through Participatory Rural Analysis and structured and semi-structured interviews, it explores what management transfers look like …


Exploring Rwanda's Continuing Education Capacity For Information Communications Technology (Ict) Skills, Li Keen Lim Oct 2017

Exploring Rwanda's Continuing Education Capacity For Information Communications Technology (Ict) Skills, Li Keen Lim

Independent Study Project (ISP) Collection

As Rwanda strives to become the ICT hub of the region, it will need to develop its greatest asset: its people, in ICT skills. This exploratory study used 30 semi-structured interviews, observation and secondary data from different sources, schools, students and NGOs, to answer a simple question: how does an everyday, working adult Rwandan learn new computers skills for a new computer age? This study found that a wide variety of suppliers fulfil different niches that give prospective students a range of prices, content, schedules, certification, practices, etc., and that demand is increasing for a host of different reasons. It …


A Study Of Reptile Community Diversity Related To Habitat Characteristics At Marojejy National Park, Julia Kowala Oct 2017

A Study Of Reptile Community Diversity Related To Habitat Characteristics At Marojejy National Park, Julia Kowala

Independent Study Project (ISP) Collection

Marojejy National Park is known for its diversity. Though it is home to the silky sifaka, it has extensive populations of herpetofauna. Seventy-seven species of reptiles have been documented in Marojejy National Park. This study aimed to evaluate the reptile community diversity and habitat characteristics in the park through systematic searches of ten-by-ten-meter plots, and inventory of species as they were found throughout the park. Systematic searches yielded the finding of 19 of the total 25 species identified. Some species that were found had not been previously seen at Marojejy before, most notably, Brookesia sp. “Nosy Hara”, Brookesia desperata, Furcifer …


Man And Land: Competing Ontologies, Colonial Legacies, And The Quest For Food Sovereignty, Savannah Smith Oct 2017

Man And Land: Competing Ontologies, Colonial Legacies, And The Quest For Food Sovereignty, Savannah Smith

Independent Study Project (ISP) Collection

Land is an ontological reality, which is at the center of different relationships to land. These relationships are situated in and a product of historical and spatial process that have an under lying power geometry. These different understandings of land tenure can create conflict when they intersect with competing interests in the same space. In Cameroon, this is currently the case in the form of large-scale land acquisitions, which often conflict with local communities as multinational corporations and local elites acquire land concessions with facilitation by the government in the name of development. This paper aims to understand this issue …


Agricultural Responses To Climate Change: A Study Of Adaptive Farming Methods In Kizanda Village, Bailey Smith-Helman Oct 2017

Agricultural Responses To Climate Change: A Study Of Adaptive Farming Methods In Kizanda Village, Bailey Smith-Helman

Independent Study Project (ISP) Collection

Agriculture is vital to the economic and social systems in Tanzania, composing 30% of the country’s GDP as well as 80% of employment (FAO, 2014). Despite agriculture’s important role, it remains one of the most vulnerable sectors to climate change. Current trends project global average temperature to increase by 0.8-2.6 degrees Celsius, leaving farmers to face changes in rainfall, soil quality, and new pests and diseases (IPCC, 2007). Farmers will be forced to adapt to the changing climate if they are to sustain their livelihoods and the Tanzanian economy. For these reasons, it is important to understand the types of …


Survey Of Invasive Lantana Camara At Makirovana-Tsihomanaomby Forest Complex, Eliza Pessereau Oct 2017

Survey Of Invasive Lantana Camara At Makirovana-Tsihomanaomby Forest Complex, Eliza Pessereau

Independent Study Project (ISP) Collection

Lantana camara is a shrub known globally as an invasive pest that grows primarily in degraded areas. The species is known to exist at Makirovana-Tsihomanaomby, a forest complex in northeastern Madagascar with 167 endemic species of flora and fauna, several of which are on the IUCN Red List. The complex, specifically Tsihomanaomby forest, is used as a resource for the three rural communes that live on its outskirts, meaning that it experiences much human activity. The objective of this study was to survey the population of L. camara at two sites: one just outside of the Tsihomanaomby forest and one …


Counting Crabs: Assessment Of Mangrove Crab Diversity And Density Among Three Sites In Ushongo, Tanzania, Clarasophia Gust Oct 2017

Counting Crabs: Assessment Of Mangrove Crab Diversity And Density Among Three Sites In Ushongo, Tanzania, Clarasophia Gust

Independent Study Project (ISP) Collection

This study assessed the density and diversity of crabs across three mangrove forest zones in Ushongo, Tanzania. The aim was to understand variance in the composition and distribution of mangrove crabs in relation to mangrove tree composition gradients in the area. Sites were measured using a 200m line transect and 40-plot method. Data was also collected from a sand beach habitat to compare to the diversity and distribution of mangrove habitats. Diversity was analyzed using Simpson’s Index of Diversity and an ANOVA test on the average number of species found per plot in each site. Density was analyzed using an …


Strategies For Environmental Education For Youths And Adults, Chumbe Island Coral Park, Zanzibar, Samantha Pfeffer Jul 2017

Strategies For Environmental Education For Youths And Adults, Chumbe Island Coral Park, Zanzibar, Samantha Pfeffer

Independent Study Project (ISP) Collection

Chumbe Island Coral Park (CHICOP) is a privately-owned business that strives to follow the best principles of ecotourism, conservation, and environmental education. Their environmental education initiative is award-winning and has affected thousands of students and community members in Zanzibar. This study looked at the environmental education techniques that CHICOP already has in place by observing two pre-visits, three island-visits and one-post visit, and determined where there was a need for enhanced and new techniques for teaching about the environment. Evidence of climate change on Chumbe Island was also recorded to aid in the educational tools and to create a database …


Quality Of Water In Relation To Diarrheal Disease Incidence In Obunga, Tianna Herman Apr 2017

Quality Of Water In Relation To Diarrheal Disease Incidence In Obunga, Tianna Herman

Independent Study Project (ISP) Collection

Kenyan cities are experiencing a serious dilemma in dealing with the large influx of people from rural parts of the country to the cities. Most people come to the city in pursuit of better opportunities and jobs. Rapid urban growth with little planning and preparation by the national and county governments has led to the development of informal settlements. These informal settlements are characterized by poor environmental conditions that predispose their residents for poor health conditions. Because of their illegal status, most residents of informal settlements in Kenya do not receive government services such as water, drainage, sewerage, and rubbish …


Vulnerability And Resilience: The Farmers Of Sagara Village, Nick Olkovsky Apr 2017

Vulnerability And Resilience: The Farmers Of Sagara Village, Nick Olkovsky

Independent Study Project (ISP) Collection

Agriculture is a large part of the economy and society of Tanzania, equating to 28% of the country’s GDP. Up to 80% of these farms are owned and worked by 19 million smallholder agriculturalists (FAO, 2015). Smallholder farmers are an inherently vulnerable demographic, due to their high reliance on agriculture for food and income in addition to their limited financial, technological, and labor resources (Morton, 2007). Simultaneously, these farmers are often uniquely adapted for the challenges they face, having developed strategies of addressing and mitigating risks over many generations. This study investigates the adaptative capacity of smallholder farmers in Sagara …


Water, Sanitation And Hygiene In Rwamwanja Refugee Settlement, Katelyn Bergl Apr 2017

Water, Sanitation And Hygiene In Rwamwanja Refugee Settlement, Katelyn Bergl

Independent Study Project (ISP) Collection

No abstract provided.


Solid Waste Management In The Developing World: The Role Of Local Government In Kisumu, Kenya, Rachel Schlueter Apr 2017

Solid Waste Management In The Developing World: The Role Of Local Government In Kisumu, Kenya, Rachel Schlueter

Independent Study Project (ISP) Collection

As the world becomes more urbanized, more waste is being produced. According to United Nations projections in 2014, 66% of the world’s population will be living in cities by 2050 with the majority of growth occurring in African cities. Managing urban waste in lower-middle income countries, such as Kenya, poses a particular challenge as income levels rise, municipal capacities are stretched, and foreign loans complicate accountability. This project sought to assess the practical role of local government when managing solid waste in the context of long-term development strategies. The objectives of this study are to first establish the current role …