Open Access. Powered by Scholars. Published by Universities.®

Biodiversity Commons™

Open Access. Powered by Scholars. Published by Universities.®

6,143 Full-Text Articles 10,857 Authors 3,585,014 Downloads 236 Institutions

All Articles in Biodiversity

Faceted Search

6,143 full-text articles. Page 111 of 202.

A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum 2018 Augustana College, Rock Island Illinois

A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum

Celebration of Learning

Urban expansion has had devastating impacts on forest ecosystems, especially within the past century. Human attempts to dominate nature have diminished natural disturbance regimes, which have maintained the biodiversity and historic composition of these ecosystems. Fires have been a prominent force in maintaining the structure of oak, hickory and other heliophytic (sun loving and fire-adapted) forest systems. Human induced fire suppression has led to mesophication across North America. Mesophication is the transition from drier conditions with open canopies to wetter conditions with closed canopies. These new conditions decrease the survival rates of these important species and begin to favor mesophytic …


Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender 2018 Fordham University

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim …


Understanding Patterns Of Diversity And Evolution In Mainland Anolis Lizards, Levi Nathaniel Gray 2018 University of New Mexico

Understanding Patterns Of Diversity And Evolution In Mainland Anolis Lizards, Levi Nathaniel Gray

Biology ETDs

Patterns of organismal diversity and evolution are often difficult to interpret with a high level of confidence. The number of mechanisms and processes that contribute to shaping patterns of diversity is extensive and is reflected in the many methods researchers have used to infer causation. Taxonomic groups that are well-studied can offer more precise interpretation of pattern and process due to the considerable amount of research addressing ecology, natural history, and behavior of the organisms.

In this dissertation, I explore patterns of phylogenetic and phenotypic variation in Anolis lizards (anoles) by testing hypotheses that could have led to the observed …


Distribution Of Reptiles In Tolipir National Park, Pakistan, Abu ul Hassan Faiz Dr., Mikhail F. Bagaturov, Mehboob ul Hassan, Inayat Ullah Malik, Lariab Zahra Faiz 2018 Women's university of Azad Kashmir (Bagh)

Distribution Of Reptiles In Tolipir National Park, Pakistan, Abu Ul Hassan Faiz Dr., Mikhail F. Bagaturov, Mehboob Ul Hassan, Inayat Ullah Malik, Lariab Zahra Faiz

Journal of Bioresource Management

Reptiles are the most diverse group under the category of land vertebrates. The reptile population of Tolipir National Park was surveyed from February 2013 to September 2013. The topography of this area supports a diverse plethora of vegetation that provides an ideal habitat to a host of reptiles. Random sampling of 52 quadrates was carried out. Twelve species of reptiles were recorded. The recorded species included CITES listed (Appendix II) endangered species Naja oxiana and Laudakia agrorensis.


Biodiversity Of Insects In Some Areas Of District Rawalakot, Azad Jammu And Kashmir (Pakistan), Abu ul Hassan Faiz Dr., Lariab Zahra Faiz, Fida Muhammad Khan 2018 Women university of Azad Kashmir

Biodiversity Of Insects In Some Areas Of District Rawalakot, Azad Jammu And Kashmir (Pakistan), Abu Ul Hassan Faiz Dr., Lariab Zahra Faiz, Fida Muhammad Khan

Journal of Bioresource Management

The present study was designed to find species composition and diversity of insects existing at different trophic level of food chain in coniferous forest of Rawalakot valley. The study was conducted from November, 2016 to September, 2017. The researcher recorded 53 species of insects belonging to 42 families. The herbivorous insect species feed on 134 plant spp. of the study area. The greater population density of herbivores indicates that plants are under more threat to insect pests. The present study provides base line information about the insect community of forest and need further screening of insect pest species to control …


Checklist Of Bats In Some Areas Of Azad Jammu And Kashmir, Fakhra Nazir, Inayatullah Malik, Sabiha Shamim 2018 Capital University of Science and Technology, Islamabad, Pakistan

Checklist Of Bats In Some Areas Of Azad Jammu And Kashmir, Fakhra Nazir, Inayatullah Malik, Sabiha Shamim

Journal of Bioresource Management

Bats form an essential part of the ecosystem by aiding pollination, keeping insect pests in check and overall maybe helpful as indicators of health status of the ecosystem. This study was conducted to formulate a checklist of bats from different regions in Azad Jammu and Kashmir. Five National parks from Azad Jammu and Kashmir were surveyed for the species of bats present (Dhirkot National Park, Pir Lasura National Park, Pir Chanasi National Park, Banjosa National Park and Tolipir National Park). From the study conducted, 10 species of bats belonging to 5 families were found cumulatively in the five national parks.


Trends Of Using Local Plants For Common Diseases In Rural Areas Of District Bagh Azad Jammu And Kashmir (Pakistan), Abu ul Hassan Faiz Dr., Mehboob ul Hassan, Raisa Zakar, Lariab Zahra Faiz 2018 Women university of Azad Kashmir (Bagh)

Trends Of Using Local Plants For Common Diseases In Rural Areas Of District Bagh Azad Jammu And Kashmir (Pakistan), Abu Ul Hassan Faiz Dr., Mehboob Ul Hassan, Raisa Zakar, Lariab Zahra Faiz

Journal of Bioresource Management

The present study describes anthropogenic pressure in some selected areas*(Chowki, Noor Gala, Kain Gala, Chetrora, Kotteri najam khan) of district Bagh in the lesser Himalayas. The questionnaire and field sampling surveys were used to estimate threats in the study area. The study was conducted from August 2017 to December 2017.The five model villages (Chowki, Noor Gala, Kain Gala, Chetrora, Kotteri najamkahn) of Baghwere selected to determine anthropogenic pressure. A total of 25 plants were identified used for the treatment of different diseases. The data was analyzed by student’s t test and one way analysis of variance ANOVA with spss 16.0 …


Juvenile Amphibian Response To Oak And Maple Leaf Litter, Benjamin Breslau 2018 University of Connecticut - Storrs

Juvenile Amphibian Response To Oak And Maple Leaf Litter, Benjamin Breslau

Honors Scholar Theses

The composition of tree species within New England forests has changed significantly in recent decades, with an increase in maple (Acer spp.) abundance and a decrease in oak (Quercus spp.) abundance. Changing forest structure results in changing leaf litter composition of the forest floor, which influences the ground-dwelling amphibians that live in the litter. To better understand how changes to forest composition alters amphibian habitat quality, we recorded the growth and survival of 27 juvenile wood frogs (Lithobates sylvaticus or Rana sylvatica) and 27 juvenile American toads (Anaxyrus americanus) in response to leaf litter …


Potential Benefits Of Restored Riparian Zones In An Agricultural Matrix For Bat Communities, Matthew T. Harris 2018 James Madison University

Potential Benefits Of Restored Riparian Zones In An Agricultural Matrix For Bat Communities, Matthew T. Harris

Masters Theses, 2010-2019

Riparian buffers planted within agricultural matrices for wildlife conservation are expected to support numerous taxa, but a lack of empirical testing has limited evaluation of these practices. It is imperative that biologists and land managers understand how current conservation practices impact bats so that the ecosystem services provided by bats are maintained as farming practices continue to intensify in regions dominated by agriculture. This study evaluates the effects of planted riparian buffers along streams in an agricultural matrix by comparing acoustic bat activity along streams in active cattle pasture with activity at streams where riparian buffers have been planted. Forest …


Yote Bike Share Operations Manual, Department of Sustainability, University of South Dakota 2018 University of South Dakota

Yote Bike Share Operations Manual, Department Of Sustainability, University Of South Dakota

Sustainability & Environment Reports

Yote Bike Share was started by the Sustainability Capstone class in 2017. This was started to better the mental and physical health of the students and faculty of the University of South Dakota. Not only does it make Vermillion healthier and more connected, but it also gives students and faculty that do not have a bike a sustainable option of transportation. Over the first year the bike share program has been a huge success. Students have found the bike share program extremely enjoyable. In the future we hope to expand. We see this program being expanded to other areas on …


Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, Daniel Hughes, Krystal Tolley, Mathias Behangana, Wilber Lukwago, Michele Menegon, J. Dehling, Jan Stipala, Colin Tilbury, Arshad Khan, Chifundera Kusamba, Eli Greenbaum 2018 University of Texas at El Paso

Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, Daniel Hughes, Krystal Tolley, Mathias Behangana, Wilber Lukwago, Michele Menegon, J. Dehling, Jan Stipala, Colin Tilbury, Arshad Khan, Chifundera Kusamba, Eli Greenbaum

Selected Works Temporary Series

No abstract provided.


Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, Hughes, Krystal Tolley, Mathias Behangana, Wilber Lukwago, Michele Menegon, J. Dehling, Jan Stipala, Colin Tilbury, Arshad Khan, Chifundera Kusamba, Eli Greenbaum 2018 University of Texas at El Paso

Cryptic Diversity In Rhampholeon Boulengeri (Sauria: Chamaeleonidae), A Pygmy Chameleon From The Albertine Rift Biodiversity Hotspot, Hughes, Krystal Tolley, Mathias Behangana, Wilber Lukwago, Michele Menegon, J. Dehling, Jan Stipala, Colin Tilbury, Arshad Khan, Chifundera Kusamba, Eli Greenbaum

Departmental Papers (Biology)

No abstract provided.


Winter Bat Activity In A Landscape Without Traditional Hibernacula, Amy M. Hammesfahr, Rene E. Ohms 2018 United States National Park Service, Devils Tower

Winter Bat Activity In A Landscape Without Traditional Hibernacula, Amy M. Hammesfahr, Rene E. Ohms

United States National Park Service: Publications

Abstract

Prior to 2014, bat research at Devils Tower National Monument (DETO) focused on bats present during the summer months. Biologists at DETO assumed local bats were strictly summer residents due to the presumed lack of typical habitat features associated with bat hibernation, such as caves and mines. This lack of traditional hibernacula features at DETO discouraged staff and research cooperators from studying winter bat populations. Despite the earlier assumption that bats were unlikely to hibernate on the monument, DETO documented significant winter bat activity through passive winter acoustic monitoring. This study is the first study at DETO that documents …


Niche Shifts, Species Distributions, And Genetic Diversity In Gymnophthalminae Lizards, With A Focus On Microclimates And Thermophysiology, Maria Strangas 2018 CUNY Graduate Center

Niche Shifts, Species Distributions, And Genetic Diversity In Gymnophthalminae Lizards, With A Focus On Microclimates And Thermophysiology, Maria Strangas

Dissertations, Theses, and Capstone Projects

The environmental niche is a central organizing concept in the study of ecology and evolution, as the environmental conditions in which species can persist (their fundamental niches) and the conditions in which they occur (their realized niches) can shape spatial and temporal patterns of biodiversity at multiple scales. How organisms at different levels of biological organization are affected by environmental heterogeneity has consequences for the distribution of genetic and phenotypic diversity, yet the mechanisms through which this occurs are poorly studied. In this dissertation, I present three research chapters that explore how species’ traits and their microclimatic environments shape biodiversity …


Using Molecular Markers To Trace The Population History Of Volant Organisms At Differing Temporal Scales, Noah A. Burg 2018 CUNY Graduate Center

Using Molecular Markers To Trace The Population History Of Volant Organisms At Differing Temporal Scales, Noah A. Burg

Dissertations, Theses, and Capstone Projects

Using molecular markers to test phylogenetic and phylogeographic hypotheses is critical for tracking the population origin of invasive, introduced species (Chapter 2, Chapter 4) and to identify the systematic relationships of disparate lineages at both shallow and deep evolutionary time scales (Chapters 3, Chapter 4). In this thesis, Sanger Sequencing was used to generate datasets based on fresh and preserved tissue from specimens collected in the field, as well as museum tissue vouchers granted from various institutions in the US and Europe. In combining these source materials, data were generated for three focal studies: 1) In the first research section …


Reproductive Effort And Lipid Dynamics Of The Emerald Shiner (Notropis Atherinoides) In The Upper Niagara River, New York, Christopher A. Osborne 2018 State University of New York College at Buffalo - Buffalo State College

Reproductive Effort And Lipid Dynamics Of The Emerald Shiner (Notropis Atherinoides) In The Upper Niagara River, New York, Christopher A. Osborne

Biology Theses

Life history theory predicts that reproductive characteristics of organisms will be shaped by biotic and abiotic factors to maximize their overall fitness. In this study, I investigated how growth, reproductive effort, and lipid dynamics vary ontogenetically and seasonally for emerald shiners (Notropis atherinoides) in the upper Niagara River. Growth rates were highest in age 2 shiners and lower in age 1 and age 3 individuals. Evidence of reproduction was found beginning at age 1, and reproductive investment as measured by ovarian lipid content was lowest in age 1 and age 2 individuals and greatest in age 3 fish. …


Corrupting Roots: The Impact Of Neoliberalism And Seed Patent Laws On The Mapuche People Of Chile, Callahan Powell 2018 California State University, Monterey Bay

Corrupting Roots: The Impact Of Neoliberalism And Seed Patent Laws On The Mapuche People Of Chile, Callahan Powell

Capstone Projects and Master's Theses

In a globalizing world, indigenous communities are repeatedly targeted by development practices that threaten their cultural heritage and traditions. The Mapuche people of Chile are the largest indigenous group still occupying South America. Practices by wealthier nations, to include; seed patent laws, intellectual property right agreements, and development, have threatened the Mapuche and their deeply embedded cultural traditions. I use a critical approach, a main sociological research method, with a focus on the neoliberal regime of truth to analyze the consequences of development and capitalism to the indigenous Mapuche people. Through use of Immanuel Wallerstein’s World Systems Theory, David Harvey’s …


Gulls, Martin S. Lowney, Scott F. Beckerman, Scott C. Barras, Thomas W. Seamans 2018 USDA, Wildlife Services

Gulls, Martin S. Lowney, Scott F. Beckerman, Scott C. Barras, Thomas W. Seamans

Wildlife Damage Management Technical Series

Abundant gull (Figure 1) populations in North America have led to a variety of conflicts with people. Gulls cause damage at aquaculture facilities and other properties, and often collide with aircraft. Their use of structures on and near water results in excessive amounts of bird droppings on boats and docks. Their presence near outdoor dining establishments, swimming beaches, and recreational sites can lead to negative interactions with people. Large amounts of gull fecal material pollutes water and beaches resulting in drinking water contamination and swim bans. A combination of dispersal techniques, exclusion and limited lethal control may reduce damage to …


A Contribution Toward A Global Monograph Of Gyroporus: Taxonomy, Phylogeny, Biogeography, Naveed Davoodian 2018 CUNY Graduate Center

A Contribution Toward A Global Monograph Of Gyroporus: Taxonomy, Phylogeny, Biogeography, Naveed Davoodian

Dissertations, Theses, and Capstone Projects

Gyroporus (Sclerodermatineae, Boletales, Agaricomycetes, Basidiomycota, Fungi) is a genus of ectomycorrhizal mushroom-forming fungi distributed throughout the world in suitable habitats. Previous attempts to untangle the diversity of this genus proved difficult due to the presence of semi-cryptic species and equivocal results from phylogenetic analysis of ribosomal RNA markers. To overcome these obstacles, a combined taxonomic and phylogenetic (emphasizing protein-coding genes) approach is used here to delimit species and elucidate geographic and evolutionary patterns of Gyroporus. Careful study of relevant literature and herbarium specimens was augmented by field work in North America, Australia, and East Asia for observation and collection …


Facebook As A Social Outreach And Advocacy Tool In Intersex/Dsd Groups, Emelie J. Ali Ms 2018 Manhattanville College

Facebook As A Social Outreach And Advocacy Tool In Intersex/Dsd Groups, Emelie J. Ali Ms

Publications and Research

My project includes a netnography of a Facebook intersex group called Families and Friends of Intersex People. I observed the group’s forms of communication within the group and which topics they discussed. It appears one of the major concerns the group has is the use of nonconsensual, sex assignment surgery on infants to “correct” their body to match a gender identity. I have also discovered a link between being intersex and affiliated with the LGBT+ community. Since the 20th century, intersex people have been stigmatized due to their assumed ability to engage in sexual, same-sex relations. I have concluded that …


Digital Commons powered by bepress