Characterization Of Sugar Diversity In Floral And Extra-Floral Nectar From The Coastal Coral Tree (Erythrina Caffra Thunb.) In Southern California, 2014 Loyola Marymount University and Loyola Law School
Characterization Of Sugar Diversity In Floral And Extra-Floral Nectar From The Coastal Coral Tree (Erythrina Caffra Thunb.) In Southern California, Victor D. Carmona
Victor D. Carmona-Galindo
The Coastal Coral Tree (Erythrina caffra Thunb.) produces floral nectar (FN) that serves to attract pollinating insects, but also secretes nectar from extra-floral (EFN) glands that serves to attract predatory insects, such as ants. While studies on myrmecophytes (i.e. specialized plants that attract and interact with ants) have primarily focused on interspecific evaluations of EFN chemistry, the Coastal Coral tree offers an opportunity to contrast intraspecific nectar chemistry with differing evolutionary and ecological functions. We hypothesized that the richness of (molecular) sugar species, relative concentrations, and diversity of sugars in FN and foliar EFN would diverge due to differences ...
Need For A Phenotyping Platform For Identification Of Abiotic Stress Tolerant Rootstocks In Mango, Sridhar Gutam
Mango (Mangifera indica), the national fruit of India is now occupying an area of 1.23 m. ha. producing 10.99 m. tones is ranking first among world’s mango producing countries. During the year 2011-12, India had exported over 634 lakh tonnes of fresh mangoes worth of Rs. 209.74 crore (Ref. See the link here). The Confederation of Indian Industry and McKinsey & Company Report (2013) had identified mango crop which has high potential for Indian agriculture. However, to meet the growing demand in the country and abroad for the mango fruits. we need to increase the current productivity ...
The Effects Of Salinity, Ph, Temperature, And Dissolved Oxygen On Sensitivity Of Pcr Identification Of T4 Bacteriophage, 2013 University of South Carolina
The Effects Of Salinity, Ph, Temperature, And Dissolved Oxygen On Sensitivity Of Pcr Identification Of T4 Bacteriophage, Joesph F. Cannon, Nicholas A. Thurn, Paul E. Richardson
Journal of the South Carolina Academy of Science
Bacteriophages are used as indicators of pathogenic bacteria in drinking, and wastewaters. They also show potential in limiting aquatic bacterial populations through their lytic properties. The effect of different water characteristics (salinity, pH, dissolved oxygen, and temperature) on the sensitivity of the PCR identification of virus particles were analyzed to determine at what levels bacteriophage can be detected in environmental samples. Results from this preliminary study indicate that a PCR bacteriophage detection technique has potential as a relatively efficient and economical indicator of coliform contamination in multiple aquatic environments. While further evaluation is needed, the protocol appears to function in ...
Diversity Of Cultivable Bacteria Involved In The Formation Of Macroscopic Microbial Colonies (Cave Silver) On The Walls Of A Cave In Slovenia, Blagajana Herzog Velikonja, Rok Tkavc, Lejla Pašić
International Journal of Speleology
Karstic caves often support white, yellow, grey or pink microbial colonies that are termed ‘cave silver’ by speleologists. Using various sample pre-treatments and culture media, a wide variety of bacteria associated with these colonies were recovered from a cave in Slovenia, Pajsarjeva jama. Decreasing the inoculum size resulted in significant increases in viable counts, while pre-treatments had the opposite effect with the exception of microwave irradiation. While all growth media yielded viable counts, the maximal counts were observed on a low-nutrient TWA medium.
Based on the 16S rRNA gene sequence of OTU representatives, the majority of the 80 isolates examined ...
Landscape Genetics Of The Marbled Salamander (Ambystoma Opacum) At Mammoth Cave National Park, 2013 Western Kentucky University
Landscape Genetics Of The Marbled Salamander (Ambystoma Opacum) At Mammoth Cave National Park, James Kyle Martin
Masters Theses & Specialist Projects
Habitat connectivity is important to maintain in order to prevent loss of genetic diversity, reduce inbreeding depression, and decrease extinction risk in threatened or endangered species. Here I present a landscape genetics study on marbled salamanders (Ambystoma opacum) in highly connected forested habitat at Mammoth Cave National Park. This investigation of gene flow among ponds within a mostly continuous landscape provides data that can be compared with patterns observed in more fragmented landscapes. These comparisons can provide a means of investigating the separate effects of structural and functional habitat connectivity on amphibian genetic population structure. Structural connectivity refers to the ...
The Imperative Of Conserving California's Foothill Oak Woodlands, 2013 California Polytechnic State University
The Imperative Of Conserving California's Foothill Oak Woodlands, Lauren Phillips
No abstract provided.
La Diversidad De Los Analisis De Diversidad [The Diversity Of Diversity Analyses], 2013 Loyola Marymount University and Loyola Law School
La Diversidad De Los Analisis De Diversidad [The Diversity Of Diversity Analyses], Victor D. Carmona
Victor D. Carmona-Galindo
There is a lack of consistency with respect to the use of the terms like species richness, diversity and biodiversity, which extends to the analysis of diversity indices and the merit of using diversity indices in the evaluation (comparison and contrast) of biological communities. The purpose of this article is to provide working definitions for these terms and cite examples from the primary literature that demonstrate the utility of estimating richness, evaluating proportional abundance patterns, as well as comparing indices of diversity and similarity to study patterns of biological organization at different ecological scales. Additionally, we provide a manual in ...
Conservation In The Context Of Climate Change: Practical Guidelines For Land Protection At Local Scales, 2013 University of Rhode Island
Conservation In The Context Of Climate Change: Practical Guidelines For Land Protection At Local Scales, Kevin Ruddock, Peter August, Christopher Damon, Charles Labash, Pamela Rubinoff, Donald Robadue Jr.
Natural Resources Science Faculty Publications
Climate change will affect the composition of plant and animal communities in many habitats and geographic settings. This presents a dilemma for conservation programs – will the portfolio of protected lands we now have achieve a goal of conserving biodiversity in the future when the ecological communities occurring within them change? Climate change will significantly alter many plant communities, but the geophysical underpinnings of these landscapes, such as landform, elevation, soil, and geological properties, will largely remain the same. Studies show that extant landscapes with a diversity of geophysical characteristics support diverse plant and animal communities. Therefore, geophysically diverse landscapes will ...
Wallace And Incipient Structures: A World Of "More Recondite" Influences, 2013 Western Kentucky University
Wallace And Incipient Structures: A World Of "More Recondite" Influences, Charles H. Smith
DLPS Faculty Publications
Alfred Russel Wallace is well-known for his co-discovery of the principle of natural selection. Natural selection is usually considered a process, but it is not clear that Wallace regarded it in exactly these terms. In fact he more likely thought of the relationships involved as representing what we would now term a “state space,” a negative feedback loop wherein populations are maintained at healthy levels through elimination of the unfit. Both before and after the advent of natural selection Wallace clung to the idea that “more recondite forces” were shaping the nature and direction of evolution; this is especially evident ...
The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., 2013 California Polytechnic State University
The Envenoming Pandemic And The Misguided Views Of Snakes: Developing Sustainable Relationships Between Native Poisonous Snakes Of India And The Citizens Of Maharashtra Through The Use Of The Irula Model., Destiny Villanueva
Due to its vast population and general negative consensus regarding snakes, India is notorious for having more snakebite incidents than any other country. Snakes are simultaneously revered and feared in Indian religion and culture. This stigma is perpetuated through propaganda, family beliefs, and innate fears of snakes.These stigmas are more pronounced within rural areas, such as the region of Mahad within the state of Maharshtra. Envenoming is endemic in these areas, and others like them. The World Health Organization identified envenoming as one of the most neglected tropical diseases of the 21st century (Nature India, 2013). Additionally, both nonvenomous ...
Breeding Bird Communities Associated With Tallgrass Prairies In Southeast Nebraska, 2013 University of Nebraska - Lincoln
Breeding Bird Communities Associated With Tallgrass Prairies In Southeast Nebraska, Stephen L. Winter, Samuel D. Fuhlendorf, Britt L. Smith
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
We collected data on bird communities associated with tallgrass prairies in two areas of southeast Nebraska that have been identified for focused conservation action: the Sandstone Prairies Biologically Unique Landscape (BUL) and the Southeast Prairies BUL. Our research was conducted in June and July of 2010 and 2011 at 14 privately–owned and state–owned properties located in Gage, Jefferson, Johnson, and Pawnee Counties. We detected a total of 1,108 individuals representing 41 species during 10–minute point counts with 400–m radii. The most commonly encountered species, in descending order of relative abundance (individuals detected per point count ...
Sylvatic Species Of Echinococcus From Rodent Intermediate Hosts In Asia And South America, 2013 University of Nebraska - Lincoln
Sylvatic Species Of Echinococcus From Rodent Intermediate Hosts In Asia And South America, Scott Lyell Gardner, Altangerel T. Dursahinhan, Gábor R. Rácz, Nyamsuren Batsaikhan, Sumiya Ganzorig, David S. Tinnin, Darmaa Damdinbazar, Charles Wood, A. Townsend Peterson, Erika Alandia, José Luís Mollericona, Jorge Salazar-Bravo
Faculty Publications from the Harold W. Manter Laboratory of Parasitology
During a global survey of the diversity of vertebrates and their parasites including the Gobi and desert/steppe biomes ranging from south central to western Mongolia, we found metacestodes (larvae) of Echinococcus multilocularis (Leuckart 1863) in the liver of an individual vole (Microtus limnophilus Büchner 1889) collected in grassland habitat at Har Us Lake, southeast of Hovd, Mongolia. Positive identification of E. multilocularis from near Hovd was made via comparative cyst morphology, study of hooks from the rostellum derived from protoscolexes, and DNA sequencing of the COX1 mitochondrial gene extracted from tissue of the cysts frozen in the field. This ...
Pritchardia Boliviensis N. Gen., N. Sp. (Anoplocephalidae: Linstowinae), A Tapeworm From Opossums (Didelphidae) In The Yungas And Lowlands Of Bolivia And Atlantic Forest Of Paraguay, 2013 University of Nebraska - Lincoln
Pritchardia Boliviensis N. Gen., N. Sp. (Anoplocephalidae: Linstowinae), A Tapeworm From Opossums (Didelphidae) In The Yungas And Lowlands Of Bolivia And Atlantic Forest Of Paraguay, Scott Lyell Gardner, F. Agustín Jiménez Ruiz, Mariel L. Campbell
Faculty Publications from the Harold W. Manter Laboratory of Parasitology
Pritchardia boliviensis n. gen. n. sp. (Anoplocephalidae: Linstowiinae) is described from marsupials (Marmosops noctivagus, Metachirus nudicaudatus, Gracilinanus sp.) collected in Bolivia and Paraguay. These cestodes have a very small strobila with only three segments, regularly alternating genital pores, genital ducts crossing excretory canals ventrally, ovoid to pyriform cirrus sac, three to five testes, external seminal vesicle present and separated from cirrus sac by long seminal duct surrounded by glandular material, uterus ephemeral, eggs forming rapidly in gravid segments, and seminal receptacle present. Pritchardia boliviensis n. sp. includes a single species that occurs in small marsupials in the family Didelphidae of ...
Mycological Study For A Management Plan Of A Neotropical Show Cave (Brazil), 2013 University of South Florida
Mycological Study For A Management Plan Of A Neotropical Show Cave (Brazil), Erika Linzi Silva Taylor, Maria Aparecida De Resende Stoianoff, Rodrigo Lopes Ferreira
International Journal of Speleology
Caves are stable environments with characteristics favoring the development of microorganisms. The allocthonous input of organic matter and microbes into the warm Neotropical caves may favor the development of filamentous fungi, including pathogenic species. Histoplasma capsulatum is a pathogenic species commonly found in caves and associated with bat and bird guano. Many Brazilian caves have been historically visited due to scenic and religious tourism. The objective of this study was to perform a microbiology study for a management plan of a show cave in Brazil, focusing on the presence and distribution of pathogenic and opportunistic fungi in the cave. Statistics ...
Unalienated Recognition At The Core Of Meaningful Exchange Between School And Community. A Response To "Unalienated Recognition As A Feature Of Democratic Schooling", 2013 Lewis and Clark Graduate School of Education and Counseling
Unalienated Recognition At The Core Of Meaningful Exchange Between School And Community. A Response To "Unalienated Recognition As A Feature Of Democratic Schooling", Robin R. Sears
Democracy and Education
I apply the concept of unalienated recognition as a form of democratic exchange, introduced by Rheingold (2012), to a different educational setting. Through a case study of the School for Field Studies international environmental programs, that are, like Rheingold’s study school, field based and community centered, I explore the hypothesis that today’s undergraduate students’ desire to serve and to solve can be usefully harnessed in formal coursework and research to address real problems at their foundation. I link the cases by building on Rheingold’s use of the concept of boundary objects as an organizing principle behind the ...
The Effect Of Resource Stress On Goldenrod’S Tolerance Of Folivory Depends More On The Identity Of The Stress Than On The Severity Of The Stress, Peter J. March, Michael J. Wise, Warren G. Abrahamson Ii
Warren G. Abrahamson, II
It is widely accepted that the levels of resources in a plant’s environment can influence the plant’s ability to compensate for (i.e., tolerate) damage by herbivores. However, predicting the direction of the influence has proven difficult. Here, we report on a greenhouse study in which individuals of Solidago altissima were exposed to factorial combinations of light and fertilization levels to investigate how different types of stresses affect plants’ ability to tolerate leaf damage by larvae of the beetle Trirhabda virgata. Shade stress reduced the plants’ tolerance of herbivory, while nutrient stress had no effect on tolerance. These ...
Modeling Simultaneous Selection For Resistance And Tolerance In Goldenrod (Solidago Altissima) Across A Range Of Spittlebug Population Densities, Michael Wise, Warren G. Abrahamson Ii
Warren G. Abrahamson, II
Plant defenses against herbivory include two main strategies: resistance (to minimize the amount of damage) and tolerance (to minimize the fitness impact of that damage). Recent studies have emphasized the need to consider both strategies simultaneously for a fuller understanding of the evolutionary and ecological dynamics of plant defense against herbivores. We used a combination of a garden study, a greenhouse experiment, and mathematical modeling to investigate resistance to and tolerance of spittlebug damage in the goldenrod Solidago altissima. In contrast to traditional expectations, the genetic correlation between resistance and tolerance was highly positive. Selection gradients indicated that directional selection ...
Incorporating Satellite Derived Cloud Climatologies To Improve High Resolution Interpolation Of Daily Precipitation., Adam M. Wilson, Benoit Parmentier, Brian Mcgill, Rob Guralnick, Walter Jetz
Yale Day of Data
Conservation of biodiversity demands comprehension of evolutionary and ecological patterns and processes that occur over vast spatial and temporal scales. A central goal of ecology is to understand the factors that control the spatial distribution of species and this has become even more important in the face of climate change. However, at global scales there can be enormous uncertainty in environmental data used to model species distributions. Even ‘simple’ metrics such as mean annual precipitation are difficult to estimate in areas with few weather stations and available data sets do not quantify uncertainty in these surfaces. We are developing a ...
Small Mammal Use Of The Burn Perimeter Following A Chaparral Wildffire In Southern California, 2013 Occidental College
Small Mammal Use Of The Burn Perimeter Following A Chaparral Wildffire In Southern California, Mark I. Borchert, Sinead Borchert
Bulletin of the Southern California Academy of Sciences
Abstract.--Wildfires in southern California chaparral burn at high intensities and often cover thousands of hectares. Some small mammals survive the fire while others colonize from scattered unburned islands and from intact vegetation bordering the main fire perimeter. For ten years (2002-2011) we live-trapped two grids and used the number of captures to examine post-fire small mammal use of a narrow 65-m zone straddling the high-contrast edge between burned and unburned chaparral on the perimeter of a high-intensity wildfire. Results indicate that agile kangaroo rats (Dipodomys agilis) were captured more often in open, burned areas than in unburned chaparral. Deer ...
Leatherback Hatchling Fitness, 2013 California Polytechnic State University
Leatherback Hatchling Fitness, Violet Campbell, Shane Morales, Kelly Stewart
STEM Teacher and Researcher (STAR) Program Posters
Leatherback hatchling fitness on land is essential for their success in entering the ocean without being predated. Two ways fitness on land may be measured are by how fast hatchlings crawl as well as how fast their righting responses are when they are flipped onto their carapaces. Hatchlings from certain nests have slower righting response times along with slower crawl times, both of which would increase the odds of predation and hinder the success of hatchlings reaching the ocean.
Hatchling crawling speed was determined by timing 12 randomly selected hatchlings from each nest to crawl a distance of two meters ...