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Articles 241 - 259 of 259

Full-Text Articles in Physical Sciences and Mathematics

Rural Futures: How Can Agricultural Development Lead To A High Quality Of Life?, Jessie Ebersole Apr 2011

Rural Futures: How Can Agricultural Development Lead To A High Quality Of Life?, Jessie Ebersole

Independent Study Project (ISP) Collection

Study Objectives:

Uganda, with its wealth of arable land and water resources, has unrealized agricultural development potential. How food is produced and distributed will impact United Nations Millennium Development Goal targets, including the eradication of extreme hunger, reductions in child mortality, and improvements in maternal health and environmental sustainability, yet advances towards the MDG’s have been limited. This study explores how Uganda’s agricultural sector can be developed in a way that improves the quality of life of smallholder farmers in Katente and Namuyenje parishes in Mukono district, Uganda. Ugandan agricultural production is starved of new sources of knowledge and technology, …


Pesticide Use And Awareness On Pemba Island, Brooke Shorett, Lauren Crask Oct 2010

Pesticide Use And Awareness On Pemba Island, Brooke Shorett, Lauren Crask

Independent Study Project (ISP) Collection

Use and awareness of pesticides by 301 farmers on Pemba Island, Tanzania, were surveyed, in order to assess practices and perceptions of pesticide use. Surveys were conducted in both peri-urban farms and rural farms, which were either irrigated or rain-fed. Results showed that while the overwhelming majority of farmers on irrigated fields used pesticides frequently, farmers located in rain-fed irrigation largely farmed without pesticides. Likewise, peri-urban farmers made use of pesticides far more than rural farmers. Of the farmers who did use pesticides, an average of Tsh 17,219 was spent annually on Rogol, Satunil, Dimethoate, Simithion, Thionex and Dursban. Most …


Stop Pummeling My Primates: Effects Of Land Use Change On Behaviors Of Papio Anubis Near Lake Manyara National Park In Mto Wa Mbu, Tanzania, Hannah Young Oct 2010

Stop Pummeling My Primates: Effects Of Land Use Change On Behaviors Of Papio Anubis Near Lake Manyara National Park In Mto Wa Mbu, Tanzania, Hannah Young

Independent Study Project (ISP) Collection

The ever-increasing human population means more land is required for housing and agricultural needs to sustain the growing population. This study involves a group of olive baboons living in and on the boundary of Lake Manyara National Park in Mto wa Mbu, Tanzania. They leave the park everyday and travel to surrounding areas. There are three different habitats near the baboons’ exit point of the park, a residential area with houses and some people, an undisturbed area without homes and residents, and an agricultural area, full of farms and the most densely populated area. The object of this study was …


Guano Exploitation In Madagascar, Christina Buliga Oct 2010

Guano Exploitation In Madagascar, Christina Buliga

Independent Study Project (ISP) Collection

Agriculture in Madagascar continues to remain largely undeveloped. Out of the eighty percent of Malagasy individuals that live in rural areas an overwhelming sixty five percent practice subsistence agriculture. With respect to the country as a whole this means that out of Madagascar's 58.2 million hectares of available land only 5.2 percent (3 million hectares) are farmed. And out of these 3 million hectares only 67% are cultivated permanently and only 11% are fertilized.

While there are several reasons for why Madagascar’s agriculture has remained largely undeveloped and for why Madagascar continues to rely on imported crops to meet its …


Traditional Plant Use Of The Raglay In Cãu Gãy Village, Núi Chúa National Park, Alex Greene Oct 2010

Traditional Plant Use Of The Raglay In Cãu Gãy Village, Núi Chúa National Park, Alex Greene

Independent Study Project (ISP) Collection

Members of the Raglay community of Cãu Gãy Village were interviewed to determine the extent and nature of their traditional reliance on plants. This community, located in the buffer zone of Núi Chúa National Park, was found to utilize 64 plant species for a wide variety of uses. Botanical specimens and photographs were used to identify 42 plants to species level, 13 to genus level, and 6 to family level, while 3 remained unidentified. For each plant, the Raglay name, local Vietnamese name, use, specific application, and preparation were documented, as well as any details of ritual or commercial significance. …


Rural Tree Decline In Tasmania’S Midlands: Stand Structure, Substrate Geology, And Carbon Content Analysis, Claire Superak Apr 2010

Rural Tree Decline In Tasmania’S Midlands: Stand Structure, Substrate Geology, And Carbon Content Analysis, Claire Superak

Independent Study Project (ISP) Collection

The once densely forested dry sclerophyll landscapes of the Midlands of Tasmania are now characterized by vast spans of agricultural pasture with intermittent dead and ailing eucalypt trees. This landscape changing phenomenon, rural tree dieback, has come into the focus of a collaborative research team at the University of Tasmania sponsored by the nonprofit organization, Greening Australia. Through the efforts of this team of scientists of diverse backgrounds, Greening Australia aims to create an ecologically viable reforestation plan for the Midlands.

I conducted a pilot study focusing on a 400 ha plot within the Dennistoun Farm property in Bothwell, Tasmania …


Effects Of Re-Grown Forest Habitat On Lemur Catta Behavior, Sophie Ackoff Oct 2009

Effects Of Re-Grown Forest Habitat On Lemur Catta Behavior, Sophie Ackoff

Independent Study Project (ISP) Collection

This study examines the effects of re-grown forest habitat on L. catta behavior at Berenty Private Reserve in Southern Madagascar during the early wet season. Evaluation of the reforested area versus natural forest revealed significant differences in species composition and food availability. Though the re-grown forest showed signs of forest regeneration and total greater food availability, the natural forest of Malaza proved to contain more preferred food sources for L. catta. Behavioral observations were collected over eight full-day troop follows and showed significant differences in feeding behavior, activity budget, and intra-troop and inter-troop aggressions. The WELL troop in Ankoba, the …


Pomacea Canaliculata In Tram Chim National Park: An Examination Of The Golden Apple Snail Within Local Vegetation Populations, Justin Loiseau Apr 2009

Pomacea Canaliculata In Tram Chim National Park: An Examination Of The Golden Apple Snail Within Local Vegetation Populations, Justin Loiseau

Independent Study Project (ISP) Collection

The golden apple snail (Pomacea canaliculata) is an invasive species that was first introduced into Southeast Asia in the 1980’s. Nearly three decades later, Pomacea canaliculata has become a widespread pest that threatens several key crops of the region, including Vietnam’s expansive rice fields. Although the economic implications of the spread of Pomacea canaliculata throughout Vietnam are disastrous, the environmental implications are also quite shocking. In Tram Chim National Park, the golden apple snail has shown its ability to survive and thrive off of local grasses and wild rice. To better understand the threat level of Pomacea canaliculata to Tram …


Estatus Actual De Los Búhos Terrestres (Athene Cunicularia) En La Zona De Puerto López, Ecuador: Efectos De Las Creencias Y Sentimientos Hacía Los Animales Silvestres, Allison Qubain Oct 2008

Estatus Actual De Los Búhos Terrestres (Athene Cunicularia) En La Zona De Puerto López, Ecuador: Efectos De Las Creencias Y Sentimientos Hacía Los Animales Silvestres, Allison Qubain

Independent Study Project (ISP) Collection

In response to negative attitudes towards the existing biodiversity in the region of Puerto Lopez, Ecuador and as a follow-up of a study conducted in 2006 on the status of Burrowing Owl (Athene cunicularia) populations, through informal interviews and observation, this investigation focuses on how local sentiments towards nature have affected the current status of the Burrowing Owl populations and their habitat. The investigation revealed that in addition to the effects of legends and beliefs, there is an existing lack of knowledge, understanding, and appreciation for the extremely high biodiversity, which has created an evident fear instilled in the people. …


Corallivorous Reef Fishes As Potential Vectors Of Coral Disease Based On A Study Of Dietary Preferences, Tanya Rogers Oct 2008

Corallivorous Reef Fishes As Potential Vectors Of Coral Disease Based On A Study Of Dietary Preferences, Tanya Rogers

Independent Study Project (ISP) Collection

The prevalence of coral disease appears to be increasing worldwide, although little is known about how these diseases are transmitted between coral colonies. To examine whether corallivorous fishes could potentially act as disease vectors, this study examined whether and which fish species feed on diseased coral, and whether these fishes actively target diseased coral sections. Branches of Acropora muricata with brown band disease were filmed in the field, and bites taken by fishes on different sections of the coral (live tissue, tissue margin, disease band, dead skeleton, and algae) were recorded. For each fish species, electivity indices were calculated for …


Improving Beekeeping On Unguja Island, Larken Root Oct 2008

Improving Beekeeping On Unguja Island, Larken Root

Independent Study Project (ISP) Collection

The purpose of this study was to investigate the current practices and methods for improvement of beekeeping on Unguja Island in Zanzibar. Beekeeping has been occurring for many years in Unguja but has retained traditional techniques with little improvement. Improvement can occur in the form of introduction of modern equipment, formation of beekeeping organizations, advancing and diversifying products, and gaining governmental support. Beekeeping is worthy of expansion because of its potential to increase rural income in a sustainable way as well as support conservation of forest areas. The study found that there has so far been little improvement of income …


A Reassessment Of Avian Assemblages Along The Lakes Corridor In The Atherton Tablelands, North Queensland, Shaina N. Stewart Apr 2008

A Reassessment Of Avian Assemblages Along The Lakes Corridor In The Atherton Tablelands, North Queensland, Shaina N. Stewart

Independent Study Project (ISP) Collection

Forest fragmentation is the process by which large areas of continuous forest are replaced by foreign ecosystems that restrict native growth to isolated patches. Biota remaining within these fragmented environments often suffer consequences that stem from reduced forest area. Wildlife corridors—linear patches of habitat that connect remnant fragments—have frequently been proposed to alleviate fragmentation effects by facilitating biotic movement between forest patches. Initiated in 1998, the Lakes Corridor on the Atherton Tablelands in North Queensland, Australia, connects the two formerly isolated sections of Crater Lakes National Park with the goal of promoting wildlife dispersal between them. This study monitored avian …


Post-Fire Demography Of A Dry Eucalypt Forest In The Midlands, Tasmania: A Pilot Study, Christine Urbanowicz Apr 2008

Post-Fire Demography Of A Dry Eucalypt Forest In The Midlands, Tasmania: A Pilot Study, Christine Urbanowicz

Independent Study Project (ISP) Collection

There have been many efforts to regenerate the threatened and declining dry eucalypt forests found within the Midlands of Tasmania. This pilot study was completed as part of a larger research project on eucalypt regeneration. Researchers need to know where recruits are most successful in order to appropriately place regeneration microsites. I have begun characterizing the baseline demography of a recently burnt remnant forest. I had two objectives: 1. to characterize the stand structure where recruits are successful, and 2. to describe where the recruits are within this structure. Data on location, size, and life history stage of trees were …


Fire Making Fuel: How A Surface Fire In A Primary Forest Affected The Availability Of Potential Fuel One Year Later, Alex Leckie Oct 2006

Fire Making Fuel: How A Surface Fire In A Primary Forest Affected The Availability Of Potential Fuel One Year Later, Alex Leckie

Independent Study Project (ISP) Collection

Fires affect millions of hectares of tropical forests around the world. These fires result in great environmental damage and economical losses. Many farmers are dependent on fire for managing their lands and many times their fires accidentally spread into forests via fuels on the forest floor. This study attempted to analyze and quantify the difference of potential fuel in a primary forest which burned one year before and an unburned part of the same forest at a primary forest fragment surrounded by farms and with a history of anthropogenic accidental fires burning it. This was done by making three sample …


Effectiveness Of Cane Toad Eradication Methods: Arakwal National Park, Matthew Miller Apr 2006

Effectiveness Of Cane Toad Eradication Methods: Arakwal National Park, Matthew Miller

Independent Study Project (ISP) Collection

The cane toad (Bufo marinus) is a pest throughout Australia. Not only is it poisonous to native predators, it also consumes or out competes native fauna. It has only recently entered into Northern New South Wales where the site for this study is located, at Arakwal National Park. This study aims to discover the most effective method of cane toad eradication in the National Park.

Over the course of 18 days, three traps were set and rotated between 9 different sites. Traps were set at sunset and cleared at sunrise. The three traps used were; (1) Pitfall style trap by …


Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado Apr 2006

Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado

Independent Study Project (ISP) Collection

The populations of sea urchins and their main predators, triggerfish (Balistidae), wrasses (Labridae) and emperors (Lethrinidae), were studied in the extractive and non-extractive zones of the Misali Island Marine Conservation Area in order to (1) evaluate the applicability of a sea urchin-sea urchin predator model developed in Kenya’s fringing reefs, (2) gain baseline data on Misali’s coral reef, and (3) evaluate the recovery status of the protected zone. This study revealed the predictive power of the sea urchin-sea urchin predator model for the reef ecosystem of Misali Island. As expected, a decline in sea urchin predators as a gross trophic …


The Survival Of The Central American Squirrel Monkey (Saimiri Oerstedi): The Habitat And Behavior Of A Troop On The Burica Peninsula In A Conservation Context, Liana Burghardt Oct 2005

The Survival Of The Central American Squirrel Monkey (Saimiri Oerstedi): The Habitat And Behavior Of A Troop On The Burica Peninsula In A Conservation Context, Liana Burghardt

Independent Study Project (ISP) Collection

The conservation status of Central American Squirrel monkeys (Saimiri oerstedi) on the far southern coast of Peninsula Burica in Panama was assessed over the course of a 13 day study period. Four troops of squirrel monkeys (67 individuals) were located on the southern coast of Peninsula Burica. Using information from local sources it can be estimated that up to 7 troops (157 individuals) live in the 7-8 km2 study site. These troops are sharing an estimated 80 ha of habitat which compared to past studies is a fairly low amount of habitat.

One troop of squirrel monkeys which is fed …


Natural Loggers: Leaf Cutter Ants As Pests In Northwestern Ecuador, Aaron Honig Apr 2005

Natural Loggers: Leaf Cutter Ants As Pests In Northwestern Ecuador, Aaron Honig

Independent Study Project (ISP) Collection

The biological world is under attack. All across the world in every continent and sub-continent biological diversity is rapidly decreasing (Wilson, 1999). As the human population continues to exponentially increase, especially in Third World countries where biological diversity reaches its peak, countless diverse biological habitats are threatened by accelerating human consumption and the growing needs of growing human populations. In Ecuador, only 1% of the original tropical forest remains, as a result of the accelerating need of viable agricultural tracts for Ecuador’s relatively poor farmers, as well as the unsustainable harvest of valuable hardwood tree species endemic to Ecuador’s primary …


A Comparison Of Anuran Species Richness Between Primary And Secondary Forest In São Francisco Do Pará, Michael Reichert Apr 2004

A Comparison Of Anuran Species Richness Between Primary And Secondary Forest In São Francisco Do Pará, Michael Reichert

Independent Study Project (ISP) Collection

Deforestation in the Amazon has become a serious conservation issue. The process of destruction of primary forest results in the creation of secondary forest that differs from primary forest in a number of important ways. Anurans (frogs and toads) are one group that may be affected by the loss of primary forest and creation of secondary forest areas, and are an important focus for conservation efforts. Previous studies on anuran reactions to loss of primary forest have been few and inconclusive. This study examined anuran species richness in an area of primary and secondary forest in order to determine whether …