Weed Seed Germplasm Collection 1964-2014 Of The Weed Biology Laboratory, 2014 Iowa State University
Weed Seed Germplasm Collection 1964-2014 Of The Weed Biology Laboratory, Jack Dekker
J. Dekker weed seed germplasm collection; including: Lots 1-3974: 1964-2014; main seed library listed by lot numbers. Lots 649-1457: 1989 all-Iowa Setaria transect study. Lots 1762-1812: 1981; Diane Manthey, North Dakota St. Univ., Setaria collection at Bob Anderson's (USDA, Univ. of Minn) 1960's wild oat study sites. Lots 2389-2595: 1992 north temperate world collection (Japan, Russia, Europe) by J. Dekker. Lots 3270-3685: 1993 Brent Reschly transect study of eastern Iowa conventional and Amish farmers. Lots 3786-3962: 2000 J. Dekker 2000 salt-tolerant Setaria of southern Japan collection. All seed in all these collections belong, and were collected and archived ...
An Updated And Annotated Checklist Of The Larger Butterflies (Papilionoidea) Of Trinidad, West Indies: Papilionidae, Pieridae And Nymphalidae, 2014 University of Nebraska - Lincoln
An Updated And Annotated Checklist Of The Larger Butterflies (Papilionoidea) Of Trinidad, West Indies: Papilionidae, Pieridae And Nymphalidae, Matthew J. W. Cock
A revised checklist for the butterfly families Papilionidae, Pieridae and Nymphalidae of Trinidad (Trinidad and Tobago) is presented, bringing nomenclature in line with modern usage, indicating synonyms from earlier lists and adding new records since the last checklist was published in 1970. Migrant and vagrant species are provisionally recognised, and records considered incorrect are discussed. The checklist includes 204 species: 15 Papilionidae, 29 Pieridae and 160 Nymphalidae. The only taxonomic change is to treat Hamadryas feronia insularis (Fruhstorfer) as a synonym of H. f. feronia (Linnaeus), syn. nov., and not as a synonym of H. feronia farinulenta (Fruhstorfer).
Climate Change Effects On Northern Great Lake (Usa) Forests: A Case For Preserving Diversity, 2014 Portland State University
Climate Change Effects On Northern Great Lake (Usa) Forests: A Case For Preserving Diversity, Matthew Joshua Duveneck, Robert M. Scheller, Mark A. White, Stephen D. Handler, Catherine Ravenscroft
Environmental Science and Management Faculty Publications and Presentations
Under business as usual (BAU) management, stresses posed by climate change may exceed the ability of Great Lake forests to adapt. Temperature and precipitation projections in the Great Lakes region are expected to change forest tree species composition and productivity. It is unknown how a change in productivity and/or tree species diversity due to climate change will affect the relationship between diversity and productivity. We assessed how forests in two landscapes (i.e., northern lower Michigan and northeastern Minnesota, USA) would respond to climate change and explored the diversityproductivity relationship under climate change. In addition, we explored how tree ...
A New Species Of Xylotrechus (Coleoptera: Cerambycidae: Clytini) From Utah, 2014 University of Nebraska - Lincoln
A New Species Of Xylotrechus (Coleoptera: Cerambycidae: Clytini) From Utah, Ronald L. Alten
Xylotrechus rameyi, new species, (Coleoptera: Cerambycidae) is described from southern Utah. Comments on its biology including habitat, host plants and larval history are provided along with photographs of the holotype, allotype, the related species X. insignis LeConte, and the larval galleries and pupal chamber.
Averting Lemur Extinctions Amid Madagascar's Political Crisis, 2014 Western University
Averting Lemur Extinctions Amid Madagascar's Political Crisis, Christoph Schwitzer, Russell Mittermeier, Steig Johnson, Giuseppe Donati, Mitchell Irwin, Heather Peacock, Jonah Ratsimbazafy, Josia Razafindramanana, Edward E. Louis, Lounes Chikhi, Ian C. Colquhoun, Jennifer Tinsman, Ranier Dolch, Marni Lafleur, Stephen Nash, Erik Patel, Blanchard Randrianambinina, Tove Rasolofoharivelo, Patricia C. Wright
The most threatened mammal group
on Earth, Madagascar’s five endemic
lemur families (lemurs are found
nowhere else), represent more than 20%
of the world’s primate species and 30% of
family-level diversity. This combination of
diversity and uniqueness is unmatched by
any other country—remarkable considering
that Madagascar is only 1.3 to 2.9% the
size of the Neotropics, Africa, or Asia, the
other three landmasses where nonhuman
primates occur. But lemurs face extinction
risks driven by human disturbance of forest
habitats. We discuss these challenges
and reasons for hope in light of site-specific,
local actions proposed in ...
Internet Reviews: The Global Biodiversity Information Facility, 2014 Central Washington University
Internet Reviews: The Global Biodiversity Information Facility, John Creech
Faculty Scholarship (Library)
This column comprises a review of the Global Biodiversity Information Facility (GBIF) portal, which is maintained by some 52 participating countries and dozens of scientific organizations. The GBIF provides access to approximately 417 million individual occurrences of organisms. It is recommended for serious students, faculty instructors and research scientists.
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 ...
Island History Affects Faunal Composition: The Treeshrews (Mammalia: Scandentia: Tupaiidae) From The Mentawai And Batu Islands, Indonesia, Eric J. Sargis, Neal Woodman, Natalie Morningstar, Aspen Reese, Link E. Olson
The Mentawai and Batu Island groups off the west coast of Sumatra have a complicated geological and biogeographical history. The Batu Islands have shared a connection with the Sumatran ‘mainland’ during periods of lowered sea level, whereas the Mentawai Islands, despite being a similar distance from Sumatra, have remained isolated from Sumatra, and probably from the Batu Islands as well. These contrasting historical relationships to Sumatra have influenced the compositions of the respective mammalian faunas of these island groups. Treeshrews (Scandentia, Tupaiidae) from these islands have, at various times in their history, been recognized as geographically circumscribed populations of a ...
Can They Dig It? Functional Morphology And Degrees Of Semifossoriality Among Some American Shrews (Mammalia, Soricidae)., Neal Woodman, Sarah A. Gaffney
Small-eared shrews (Mammalia: Soricidae: Cryptotis), exhibit modifications of the forelimb skeleton that have been interpreted as adaptations for semifossoriality. Most species inhabit remote regions, however, and their locomotory and foraging behaviors remain mostly speculative. To better understand the morphological modifications in the absence of direct observations, we quantified variation in these species by measuring 151 individuals representing 18 species and populations of Cryptotis and two species of moles (Talpidae) for comparison. From our measurements, we calculated 22 indices, most of which have been used previously to characterize substrate use among rodents and other taxa. We analyzed the indices using 1 ...
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 ...
Predicting Invasion Risk Of Non-Native Plants Using A Modified I-Rank Assessment, 2013 University of Nebraska - Lincoln
Predicting Invasion Risk Of Non-Native Plants Using A Modified I-Rank Assessment, Justin B. Williams
Dissertations & Theses in Natural Resources
Biological invasions are a global problem responsible for native species declines worldwide. Understanding the invasion risk from non-native species is important in establishing management goals and making decisions for managing native ecosystems. Useful modeling methods for quantifying or predicting invasion risk should consider research needs, data availability, and operate at an appropriate scale. I evaluated risk assessment methods towards answering a specific research question; which plant species pose the greatest risk of becoming invasive or having the greatest negative impact in Nebraska? I selected the I-Rank assessment method, which consists of 20 questions grouped into four risk categories or Subranks ...
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 ...