Open Access. Powered by Scholars. Published by Universities.®
Ecology and Evolutionary Biology Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (1406)
- Loyola Marymount University and Loyola Law School (447)
- University of Nevada, Las Vegas (369)
- Old Dominion University (211)
- Utah State University (152)
-
- Department of Primary Industries and Regional Development, Western Australia (144)
- South Dakota State University (76)
- SIT Graduate Institute/SIT Study Abroad (67)
- University of Arkansas, Fayetteville (62)
- Bemidji State University (60)
- University of Tennessee, Knoxville (58)
- Portland State University (50)
- Indiana State University (43)
- University of Kentucky (34)
- Chapman University (31)
- University of Colorado Law School (31)
- Edith Cowan University (27)
- University of South Alabama (26)
- University of Texas at El Paso (25)
- Cal Poly Humboldt (23)
- University of South Florida (23)
- University of Southern Maine (19)
- Marshall University (17)
- Antioch University (16)
- Louisiana State University (15)
- Eastern Illinois University (14)
- Purdue University (14)
- City University of New York (CUNY) (13)
- The University of Southern Mississippi (13)
- Colby College (12)
- Keyword
-
- Climate change (98)
- Ecology (91)
- Invasive species (81)
- Water quality (81)
- Western Australia (75)
-
- Conservation (73)
- Limnology (73)
- Aquatic ecology (54)
- Experiments (47)
- Biodiversity (45)
- Sus scrofa (45)
- Freshwater biology (44)
- Survival (43)
- Lake Mead (Ariz. and Nev.) (42)
- Chesapeake Bay (40)
- MN (40)
- Restoration (38)
- Wetlands (38)
- Mongolia (37)
- Feral swine (36)
- Habitat (36)
- Colinus virginianus (33)
- Minnesota (33)
- Zooplankton (32)
- Management (31)
- Fishery management (30)
- Nevada (30)
- Northern bobwhite (30)
- Endangered species (29)
- Nebraska (29)
- Publication Year
- Publication
-
- United States Department of Agriculture Wildlife Services: Staff Publications (590)
- The Prairie Naturalist (483)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (99)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (96)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (86)
-
- Module 10: Garden Ecology (85)
- Electronic Theses and Dissertations (81)
- Publications (WR) (74)
- Independent Study Project (ISP) Collection (65)
- National Quail Symposium Proceedings (58)
- Fisheries Management Papers (56)
- Biological Sciences Theses & Dissertations (55)
- Biological Sciences Faculty Publications (50)
- School of Natural Resources: Dissertations, Theses, and Student Research (48)
- Module 13: Birds in the Urban Landscape (45)
- Module 05: Public Health & Water Quality (44)
- All-Inclusive List of Electronic Theses and Dissertations (43)
- Journal of Earth and Life Science (43)
- Module 01: Introduction to Urban Ecology (42)
- Module 02: Land Use (38)
- Module 06: Urban Biodiversity (38)
- Module 03: Energy & Climate Change (37)
- Graduate Theses and Dissertations (35)
- Module 04: Hazardous Waste (33)
- School of Natural Resources: Faculty Publications (32)
- Environmental Science and Management Faculty Publications and Presentations (31)
- Module 12: Urban Wildlife (31)
- School of Natural Resources: Documents and Reviews (30)
- Module 11: Bird Migration (26)
- Open Access Theses & Dissertations (25)
- Publication Type
- File Type
Articles 241 - 270 of 3965
Full-Text Articles in Ecology and Evolutionary Biology
Assessing The Impacts Of Anthropogenic Activities On Coral Reef Health In Ushongo, Tanzania Using Coral Diversity And Parrotfish Abundance As Indicators, Thao Mai
Independent Study Project (ISP) Collection
Coral reefs, covering two-thirds of our oceans, are vital and diverse ecosystems, earning them the nickname of “rainforests of the sea”. Despite occupying only 1% of the ocean’s floor, they support 25% of all marine species, providing shelter, nursery ground and food, all the while also protecting the coast and providing job opportunities for local communities. Considered keystone species, coral reefs are highly sensitive to disturbances caused by pollution, climate change, but also anthropogenic activities such as coastal development, destructive fishing practices and tourism, endangering their existence and the entire marine ecosystem. Parrotfish, a crucial resident of these ecosystems, often …
Early Report Of A Microcosm Of The Fourth Major Global Bleaching Event: A Comprehensive Survey Of Coral Bleaching At Chumbe Island Coral Park, Zanzibar, Christian Boudreaux
Early Report Of A Microcosm Of The Fourth Major Global Bleaching Event: A Comprehensive Survey Of Coral Bleaching At Chumbe Island Coral Park, Zanzibar, Christian Boudreaux
Independent Study Project (ISP) Collection
Coral reefs harbor a wealth of the biodiversity present in the ocean. They provide an array of ecological and economic services that make them crucial to the function of a healthy ocean and prosperous coastal communities. Due to an array of anthropogenic stressors, including an increase in ocean temperatures as a result of climate change, reefs have been devastated worldwide. This is, in large part, due to the process of coral bleaching, the expelling of symbiont algae which the coral needs to produce energy, for an extended period until death. This study surveyed bleaching and death at a deeper and …
A Study Of Anthropogenic Impacts On Echinoderms In The Jambiani Intertidal Area, Zanzibar, Amaury O. Halley
A Study Of Anthropogenic Impacts On Echinoderms In The Jambiani Intertidal Area, Zanzibar, Amaury O. Halley
Independent Study Project (ISP) Collection
The coastal region of Jambiani, Unguja, hosts a rich diversity of marine life within its extensive intertidal zones. Despite its ecological significance, this area is increasingly exposed to anthropogenic disturbances due to increased human activities. This study examines the impacts of these disturbances on the biodiversity, zonation, and species abundance of echinoderms in the intertidal habitats of Jambiani. Through a comprehensive field study involving fifteen transects and detailed substrate analysis, the project evaluated the distribution and abundance of echinoderm species and assessed the influence of human activities such as seaweed farming, anchor damage, and beach trampling on these communities. The …
Anuran Diversity And Abundance Across Two Sites With Varying Levels Of Light Pollution In El Valle De Antón, Coclé, Panamá, Jackson Dray
Anuran Diversity And Abundance Across Two Sites With Varying Levels Of Light Pollution In El Valle De Antón, Coclé, Panamá, Jackson Dray
Independent Study Project (ISP) Collection
The impact of artificial light at night (ALAN) on anuran populations has been a subject of growing concern in ecological research. Anurans are particularly susceptible to the impacts of artificial light due to their nocturnal nature and an extensive exposure throughout various stages of life histories. Exposure to artificial light has been shown to impact the larval development and reproductive behavior of anurans. The impacts on anurans juvenile populations suggest a relationship between light pollution and anuran abundance. This study aimed to investigate the hypothesis that ALAN negatively affects the abundance and diversity of anurans. Field surveys were conducted in …
Variations In Salinity And Forest Structure Between Marginal And Cloistered Mangrove Forests In Boca Del Drago, Bocas Del Toro, Panama, Mary Elizabeth Hodge
Variations In Salinity And Forest Structure Between Marginal And Cloistered Mangrove Forests In Boca Del Drago, Bocas Del Toro, Panama, Mary Elizabeth Hodge
Independent Study Project (ISP) Collection
Mangroves are incredibly important ecosystems that have an outsized impact on their surroundings, providing crucial ecosystem services like carbon sequestration and coastal protection. At the same time, mangroves are some of the most threatened habitats due to their valuable position along tropical coastlines. Globally, mangrove forests are deforested and degraded by aquaculture, tourism developments, urbanization, and overharvesting. Due to high rates of mangrove loss, mangrove deforestation is now illegal in Panama, though this legislation is inconsistent and allows for exceptions, especially in tourism developments. This study aims to probe the impacts of localized coastal developments on a small mangrove forest …
Vertebrate Diversity In The La Amistad International Park Buffer Zone, Guadalupe, Chiriqui, Panamá, Mina Olson
Vertebrate Diversity In The La Amistad International Park Buffer Zone, Guadalupe, Chiriqui, Panamá, Mina Olson
Independent Study Project (ISP) Collection
Forest fragmentation and increasing agricultural land use are posing threats to the diversity of vertebrates in Panama and across the Mesoamerican Biological Corridor. Protected areas are crucial for providing connectivity and maintaining vertebrate populations. For endemic species with small native ranges, these protected areas are critical for their survival due to sensitivity of habitat change. Higher species diversity and occupancy has been reported for both birds and mammals in protected and forested areas. This pilot survey of vertebrate species was conducted to determine which species live in a primary forest within the buffer zone of La Amistad International Park near …
The Effects Of Phenological Shifts On The Reproductive Success Of Common Terns (Sterna Hirundo) And Arctic Terns (Sterna Paradisaea) In The Gulf Of Maine, Jamie W. Dinella
The Effects Of Phenological Shifts On The Reproductive Success Of Common Terns (Sterna Hirundo) And Arctic Terns (Sterna Paradisaea) In The Gulf Of Maine, Jamie W. Dinella
Student Publications
Climate change is resulting in ecosystem-wide consequences, including shifts in the geographical distribution of species and the timing of biological events, or phenology. The rapidly warming Gulf of Maine hosts breeding populations of migratory common terns (Sterna hirundo) and Arctic terns (Sterna paradisaea). I used nest check data (2013-2022) and eggshell membrane stable isotope data (2022) from Petit Manan Island in the Gulf of Maine to examine the causes and consequences of variation in phenology in common and Arctic terns. I hypothesized that the timing of an individual’s breeding was impacted by their foraging behavior and that female terns that …
Metatranscriptomic Insights Into The Interaction Between Microcystis Blooms And Hydrogen Peroxide, Taylor L. Hancock
Metatranscriptomic Insights Into The Interaction Between Microcystis Blooms And Hydrogen Peroxide, Taylor L. Hancock
USF Tampa Graduate Theses and Dissertations
For this dissertation I studied the interactions of hydrogen peroxide and cyanobacterial harmful algal blooms (cHABs) dominated by Microcystis in the Caloosahatchee River, FL. Specifically, I examined how taxonomic and functional succession relates to both natural hydrogen peroxide dynamics and hydrogen peroxide added to the environment as a cHAB treatment. Chapter 2 investigated how taxonomic succession and gene expression patterns relate to blooms and associated elevated hydrogen peroxide concentrations. The results showed that gene expressions related to cyanobacterial growth were positively correlated with hydrogen peroxide. The genes identified included enzymes capable of hydrogen peroxide generation which were expressed by blooming …
Pollinator Communities And Their Ecosystem Services At Conservation Grasslands And Adjacent Croplands, Araceli Gomez Villegas
Pollinator Communities And Their Ecosystem Services At Conservation Grasslands And Adjacent Croplands, Araceli Gomez Villegas
Department of Entomology: Dissertations, Theses, and Student Research
Pollinators are intrinsically linked to the success of unmanaged and managed ecosystems by providing pollination services that aid in the reproduction of wildflowers and many crops. Land use change, habitat loss, fragmentation, and related landscape-level phenomena (for example, increased pesticide exposure) threaten pollinators and have been associated with population declines. In the Midwestern region of the United States, land conversion of native prairies and grasslands to row-crop agriculture has been one of the largest contributors to pollinator habitat loss. Conservation programs, such as the Conservation Reserve Program, have worked towards removing environmentally sensitive lands from agriculture production and enrolling them …
Lichen Ecosystem Services And A Study From The Nj Pine Barrens, Gregory Turner
Lichen Ecosystem Services And A Study From The Nj Pine Barrens, Gregory Turner
Sustainability Research & Practice Seminar Presentations
Professor Greg Turner of the WCU Biology Department presents Lichen Ecosystem Services and a Study from the New Jersey Pine Barrens.
Towards Sociobiogeochemistry: Critical Perspectives On Anthropogenic Alterations To Soil Nitrogen Chemistry Via U.S. Urban And Suburban Development, Christopher D. Ryan
Towards Sociobiogeochemistry: Critical Perspectives On Anthropogenic Alterations To Soil Nitrogen Chemistry Via U.S. Urban And Suburban Development, Christopher D. Ryan
Dissertations, Theses, and Capstone Projects
The ecological impacts of changes to land use are relevant to concerns about climate change, eutrophication of waterbodies, and reductions in biodiversity. As a foundational component of ecosystem functioning, changes to soil biogeochemistry have significant effects on overall ecosystem health. With cities continuing to grow and develop in extent, the impacts of urbanization and suburbanization on soils are of particular concern. Despite a wide range of natural climatic and geologic conditions, several factors have driven similar patterns of land transformation and management across the United States. In particular, federal initiatives including the Home Owners Loan Corporation, the Federal Housing Administration, …
Experimental Sars-Cov-2 Infection Of Elk And Mule Deer, Stephanie M. Porter, Airn E. Hartwig, Helle Bielefeldt-Ohmann, Jeffrey M. Marano, J. Jeffrey Root, Angela M. Bosco-Lauth
Experimental Sars-Cov-2 Infection Of Elk And Mule Deer, Stephanie M. Porter, Airn E. Hartwig, Helle Bielefeldt-Ohmann, Jeffrey M. Marano, J. Jeffrey Root, Angela M. Bosco-Lauth
United States Department of Agriculture Wildlife Services: Staff Publications
To assess the susceptibility of elk (Cervus canadensis) and mule deer (Odocoileus hemionus) to SARS-CoV-2, we performed experimental infections in both species. Elk did not shed infectious virus but mounted low-level serologic responses. Mule deer shed and transmitted virus and mounted pronounced serologic responses and thus could play a role in SARS-CoV-2 epidemiology.
A Coupled Model Of Population, Poaching, And Economic Dynamics To Assess Rhino Conservation Through Legal Trade, Henry Doyle, Kylie Champagne, Ditto Rajpal, Grace Seebeck, David J. Gerberry
A Coupled Model Of Population, Poaching, And Economic Dynamics To Assess Rhino Conservation Through Legal Trade, Henry Doyle, Kylie Champagne, Ditto Rajpal, Grace Seebeck, David J. Gerberry
Spora: A Journal of Biomathematics
Rhinoceros populations in Africa are in peril largely due to the high value of their horns and the poaching that ensues. The strategy of legalizing the international trade of rhino horn is receiving increased support among both the people and government officials in Africa. Many in the international conservation community remain opposed to the idea. The legalization strategy is straightforward in theory: legalizing the trade of rhino horn will introduce a large quantity of horn to the market, the increased supply will lead to lower prices for rhino horn, and lower prices will reduce the overall poaching pressure these animals …
Literature Review Nature-Based Art Therapy Exploring Connections And Relationships, Janell Lopez-Curtis
Literature Review Nature-Based Art Therapy Exploring Connections And Relationships, Janell Lopez-Curtis
Expressive Therapies Capstone Theses
Art therapy is a modality used in clinical psychotherapy. It is supported through both quantitative and qualitative research. Branching out from art therapy is nature-based art therapy. This branch of expressive therapies holds the potential to be beneficial as art therapy due to the interconnected access to the scientific fields of ecology, ecopsychology, art therapy, expressive therapies, and other nature-based therapeutic activities; this includes intersectionality in ecological theories such as ecofeminism and deep ecology as well. Through an exploration of literature, this paper will provide definitions and theory-based support through reviewing clinical psychotherapy, evidence-based practices, and art therapy theories. The …
Fauna, Flora, And Land Cover Changes Over The Last Two Decades In The Mobile-Tensaw River Delta, Gabriel De Oliveria, Steven R. Schultze, Guilherme Mataveli
Fauna, Flora, And Land Cover Changes Over The Last Two Decades In The Mobile-Tensaw River Delta, Gabriel De Oliveria, Steven R. Schultze, Guilherme Mataveli
Technical Reports
A technical report documenting ecosystem changes to the Mobile-Tensaw River Delta region due to urban expansion over approximately two decades (2001-2019).
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Theses, Dissertations and Capstones
Studies of threats that bats face during hibernation have increased in response to white-nose syndrome (WNS), a fungal disease that has ravaged North American bat populations. However, impacts of WNS on bat ecology during spring emergence, when bats are potentially recovering from infection and allocating resources for reproduction, is relatively understudied. As more bat species become listed at the federal and state level, the need to understand the factors associated with spring emergence is critical for improving conservation guidelines and habitat management practices. Acoustic monitoring is an efficient method for monitoring bat presence for prolonged periods of time, giving biologists …
Factors That Influence Small Mammal Long Bone Morphology: An Analysis Of The Femora, Tibiae, And Humeri Of The Eastern Gray Squirrel (Sciurus Carolinensis), Tyler Everette Blake
Factors That Influence Small Mammal Long Bone Morphology: An Analysis Of The Femora, Tibiae, And Humeri Of The Eastern Gray Squirrel (Sciurus Carolinensis), Tyler Everette Blake
Theses, Dissertations and Capstones
The goal of this study is to examine the effect of urbanization and latitude on bone morphology, specifically limb length and bone density among gray squirrels endemic to the eastern United States. This study’s hypotheses are as follows: gray squirrels occupying lower latitudes will have larger body sizes and longer limbs relative to body size than those at higher latitudes following Bergmann’s and Allen’s rules. Further, squirrels in urban habitats will have greater bone density than those in rural habitats. Results show moderate correlation between body mass and respective proxies and latitude following Bergmann’s rule. Weak correlations were found between …
The Comparison Of Different Wetland Fish Assemblages Over Time, Robert Edward Adelstein
The Comparison Of Different Wetland Fish Assemblages Over Time, Robert Edward Adelstein
Theses, Dissertations and Capstones
Wetlands provide essential ecosystem services. Historically, we have drained and filled 73% of wetlands for agricultural use throughout the United States from the 1780s to the 1980s (Dahl, 1990). A nationwide focus on restoring wetlands has since occurred. Literature on restored/mitigated wetlands is rife with examples that do and do not support the same ecosystem services as natural wetlands (Langston, 1997; Meil, 2014). Restoration of wetlands occurred at the Green Bottom Wildlife Management Area (GBWMA) over several decades. Various sections of the wetland were classified by age, water depth, and vegetation. One hypothesis was that differences in fish assemblage would …
Efficacy Of Cloves As A Repellent For Pest Ants (Formicidae), Aadee Malavade
Efficacy Of Cloves As A Repellent For Pest Ants (Formicidae), Aadee Malavade
2024 REYES Proceedings
I examined the efficacy of cloves for repellent activity against foraging ants. Control baits consisting of a cracker/paper substrate topped with granulated sugar or chapati (Indian bread) were presented next to treatment baits (cracker/paper, granulated sugar and spice spread over the sugar) to ants in natural habitats. After an hour, the numbers of ants recruiting to the control and treatment baits were recorded. A timed study of ants with 30-minute duration was done to understand behavior of ants over time. Data were analyzed with the sign test. Cloves showed promise as ant repellents.
Ants And Their Response To Chili Powder, Antu Biswas
Ants And Their Response To Chili Powder, Antu Biswas
2024 REYES Proceedings
Spices can be used as an eco-friendly ant repellent. In this study, I tried to observe the ants’ response to chili powder and whether or not the spice can be an effective ant repellent.
The Efficacy Of Dry Peppermint Leaves As An Ant Repellent, Amal Chacko
The Efficacy Of Dry Peppermint Leaves As An Ant Repellent, Amal Chacko
2024 REYES Proceedings
Ant (Formicidae) infestation is a typical residential disturbance, often necessitating the use of chemical repellents that pose environmental and health dangers. This study looks into the possibilities of a natural alternative, dry peppermint (Mentha piperita L) leaves as a chemical repellent. Given the diversity of ant species and their variable responses to stimuli, this study seeks to determine the efficiency of dried peppermint leaves as a general ant repellent. A pilot study will be carried out to determine the repellent qualities of this spice against a specific ant species. The precise aims include evaluating if dry peppermint leaves …
Ants And Spices: Investigating The Repellent Effects Of Household Spices On Ants: A Study Of Chili, Coriander, And Cumin Powders, Abhishikta Pradhan
Ants And Spices: Investigating The Repellent Effects Of Household Spices On Ants: A Study Of Chili, Coriander, And Cumin Powders, Abhishikta Pradhan
2024 REYES Proceedings
The aim of this study was to test the ant-repellent potential of household spices, namely chili powder, coriander powder, and cumin powder, against ants (Formicidae). The experiments were conducted using sticky note paper as a substrate, on which granulated sugar was placed as bait. In the control baits, only granulated sugar was used, while in the treatment baits, granulated sugar mixed with each spice was used. The baits were placed near ant nests. One hour after placing the baits, the number of ants on the control and treatment baits was counted for each control-treatment pair (five pairs in total, with …
Cardamom Spice: A Potential Ant Repellent, Deepanshi Gupta
Cardamom Spice: A Potential Ant Repellent, Deepanshi Gupta
2024 REYES Proceedings
This novel research has been conducted to identify the efficacy of cardamom powder to repel ants (Formicidae) in the households and analyze the ant behavior towards the spice. The study was done using a bait and a substrate along with a spice. Granulated sugar was used as a bait material with butter crackers as a substrate. The granulated sugar was topped over the substrate in the control sample while the cardamom powder was added on top of the sugar in the treatment sample. The control sample (no cardamom powder) and treatment sample (with cardamom powder) were kept at a distance …
Evaluating The Repellent Properties Of Paprika On Ants, Jonathan J. Toj Castellanos
Evaluating The Repellent Properties Of Paprika On Ants, Jonathan J. Toj Castellanos
2024 REYES Proceedings
Ants are a problem no matter where you are, which is why we should always have a way to repel them on hand. Spices can be an eco-friendly and cheaper alternative to common insecticides sold in supermarkets. These insecticides are generally made from toxic products, which can affect both humans and animals. This research aimed to find the perfect spice to replace insecticides. Paprika was chosen because it is very common, especially in Guatemalan territory. Several experiments were conducted to verify the effects of paprika on ants. It was tested on one of the most common ant species in Central …
Investigating Turmeric’S Sustainable Properties For Pest Control As An Ant Repellent, Sabyasachi Parija
Investigating Turmeric’S Sustainable Properties For Pest Control As An Ant Repellent, Sabyasachi Parija
2024 REYES Proceedings
Spices have long been known to possess various properties, including their ability to deter pests. This study investigates the potential of turmeric (Curcuma longa) as a natural ant-repellent. By testing the spice in various controlled environments, this research aimed to identify its efficacy compared to untreated baits. The results reveal that turmeric is a promising alternative to chemical pesticides, with significant effects in repelling ants without harm to the ecosystem.
The Ant-Repellant Activity Of Ginger (Zingiber Officinale) And Cardamom (Elettaria Cardamomum), Nevil S
The Ant-Repellant Activity Of Ginger (Zingiber Officinale) And Cardamom (Elettaria Cardamomum), Nevil S
2024 REYES Proceedings
Ants, while beneficial in natural ecosystems, can become pests when they invade human habitats. This study explored the potential of common household spices as a non-toxic alternative to chemical pesticides for ant repellency. Experiments were conducted using powdered ginger and crushed cardamom, which were applied to sugar biscuits (bait) in two ways: sprinkled on top and arranged in a circle around the bait. Ant activity was monitored over time, and data was analyzed using the Sign Test. The results indicated that both ginger and cardamom significantly repelled ants, demonstrating their effectiveness as natural ant deterrents. These findings suggest that spices …
White Pepper Powder Repels Ants, Mobashar Ahmad
White Pepper Powder Repels Ants, Mobashar Ahmad
2024 REYES Proceedings
In this study, I investigated ant responses to white pepper to see whether the spice can repel foraging ants. I performed several bioassays by placing control and treatment baits. The results demonstrated that white pepper powder significantly reduces ant activity.
Investigations Into The Ant Deterrent Properties Of Asafoetida Ferula Asafoetida And Star Anise Illicium Verum, Chinmayaram K
Investigations Into The Ant Deterrent Properties Of Asafoetida Ferula Asafoetida And Star Anise Illicium Verum, Chinmayaram K
2024 REYES Proceedings
This study assesses asafoetida and star anise as eco-friendly alternatives to chemical ant deterrents. It involved placing replicates of two bait types, a control (granulated sugar) and a treatment (granulated sugar and spice), on yellow paper substrates at five different ant-infested sites. The efficacy of the spice was evaluated by comparing the ant count on each bait every 10, 40, 60, 120, and 180 minutes. Percentage repellency (PR) was calculated for both the spices, and the data was analysed with the sign test. Further tests used only the treatment bait to evaluate the efficacy of the two varieties of asafoetida …
Regional And Landscape Scale Examination And Attribution Of Vegetation Changes To Social-Environmental System Drivers In Kazakhstan, Venkatesh Kolluru
Regional And Landscape Scale Examination And Attribution Of Vegetation Changes To Social-Environmental System Drivers In Kazakhstan, Venkatesh Kolluru
Dissertations and Theses
Kazakhstan (KZ) experienced widespread changes in ecosystem structure and function. The country is a climate and land cover/use change “hotspot” owing to political reforms, intensified grazing, and extreme climatic events. Despite their importance, there is a lack of consensus about vegetation changes, trends, and drivers in KZ. Addressing this knowledge gap is crucial for effectively managing and restoring grassland ecosystems. However, a pressing challenge is discerning anthropogenic-driven vegetation changes from climate variability and decomposing the responses to the complex human-environmental forcings. Motivated by these challenges, I employed statistical and machine learning algorithms to detect and attribute vegetation changes to social-environmental …
Impacts Of Anthropogenic Sedimentation On Shell-Bed Habitats In Lake Tanganyika, Africa, Michael Soreghan, Andrew Cohen, Michael M. Mcglue, Kevin M. Yeager, Emily Ryan, Alison Johns, Ishmael Kimirei
Impacts Of Anthropogenic Sedimentation On Shell-Bed Habitats In Lake Tanganyika, Africa, Michael Soreghan, Andrew Cohen, Michael M. Mcglue, Kevin M. Yeager, Emily Ryan, Alison Johns, Ishmael Kimirei
Earth and Environmental Sciences Faculty Publications
Lake Tanganyika, in central Africa, contains a diverse and endemic fauna under threat from global climate change, overfishing, and nearshore sediment pollution. Previous studies of sediment pollution focused justifiably on impacts along rocky shorelines where diversity is high, but Lake Tanganyika also contains widespread shelly accumulations (shell beds) unprecedented in the modern East African lakes, but where impacts are less con- strained. Here we integrate multiple datasets from three sites along the Tanzanian shoreline to explore how variation in sedimentation rates and sediment quality impacts shell-bed substrate and diversity and abundance of ostracodes and sponges across sites that exhibit varying …