Terrestrial and Aquatic Ecology Commons^™

Comparative Study Of Constituents Of Essential Oils Of Ocimum Basilicum L. Cultivated In The Mongolian Gobi, Shataryn Altantsetseg, Sandui Shatar, N. Javzmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The essential oils of the herb Ocimum basilicum L., cultivated in the Mongolian Gobi, have been examined. Oils were isolated by hydro-distillation and analyzed by GC-MS. The principle components of Common Basil were methyl chavicol (52.1 %), linalool (23.9 %). In the oils of the different varieties of Basil were the following compounds found: Sweet Basil: linalool (24.5–27.4 %), methyl chavicol (19.8–20.0 %), bergamotene (10.0 %), 1.8-cineole (8.5 %); Purple Basil: linalool (52.8 %), 1.8-cineole (8.7 %); Cinnamon Basil: methyl chavicol (60.4 %), 1.8-cine-ole (6.3 %), linalool (3.3 %) and cadinol (3.2 %); Italian large leaf Basil …

“Agrionemys Kazachstanica Terbishi” Or The Two-Faced Mongolian Steppe Tortoise, Hermann Ansorge, Uwe Fritz, Khayankhyarvaa Terbish, Setev Shar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Although no extant native turtle and tortoise species is known to occur in Mongolia, a new subspecies of the Central Asian tortoise was described by Chkhikvadze under the name Agrionemys kazachstanica terbishi in 2009. The description was based on a mummified tortoise kept in a museum collection. Since then the Mongolian steppe tortoise has been considered as an endemic taxon Testudo horsfieldii terbishi (Chkhikvadze, 2009) for Mongolia.

However, there is no evidence for the occurrence of any wild tortoise species in Mongolia, even in the putative area of origin of the type specimen. The closest confirmed occurrence of Central Asian …

Diploid Allium Ramosum From East Mongolia: A Missing Link For The Origin Of The Crop Species A. Tuberosum?, Batlai Oyuntsetseg, Frank R. Blattner, Nikolai Friesen

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In eastern Mongolia, a diploid close relative of the tetraploid (4x) crop species Allium tuberosum and its closest wild relative A. ramosum (4x) was found and characterized by karyotype analysis and with molecular marker techniques. An earlier analyses revealed A. ramosum to be sister of the crop but excluded it as its progenitor. At that time a putative diploid cytotype of A. ramosum was hypothesized as a potential progenitor taxon of the tetraploids. New phylogenetic analyses of chloroplast and nuclear DNA sequences including the recently found cytotype (A. aff. tuberosum) together with A. tuberosum and A. ramosum accessions …

Herpetological Diversity Of Mongolia And Its Conservation Issues, Khorloo Munkhbayar, M, Munkhbaatar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

From the viewpoint of evolution, the classes of amphibians and reptiles could be considered as relicts, and because they are poikilothermic animals, it’s very difficult for these species to live under the dry and cold climatic conditions in Mongolia. Even species diversity is poor, Mongolian herpetological composition is unique, highly adopted to the country’s harsh climate and originated a long time ago.

In Mongolia, six species of amphibians belong to four genera, four families and two orders and the recorded 21 species of reptiles belong to 13 genera in six families of two suborders.

Uniformity In A Diversity Of Landscapes – Branchiopod Communities In Eastern And Central Mongolia, Ansgar Poloczek, Michael Mühlenberg, Ingo W. Stürmer

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

While investigating the branchiopod fauna of Mongolia, the uniformity of these crustacean communities through a multitude of different ecological conditions is conspicuous.

We sampled branchiopods in 24 sites through Central- and East-Mongolia, as living animals as well as cysts in soil samples. These sites represent the main types of Mongolia’s vegetation- and ecological-zones: Taiga forests in the western and eastern edge of the Khentey-Mountain ridge, the central and eastern steppe regions, and the Gobi-desert in the south.

In this large amount of differing ecological conditions with a changing human impact, compared to the width of the covered area, we found …

New Data On The Fish Coregonus Peled (Gmelin, 1788) In Some Water Bodies Of Mongolia, Ayuriin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In connection with the planned establishment of a coregonid fishery and the construction of a specialized hatchery in the area of Western Mongolia a study was undertaken with the aim of studying some parts of the reproductive biology of population of Coregonus peled inhabiting the lake Ulaagchnii Khar (Zavhan aimag). This species was introduced into this Mongolian lake, originally lacking any fish stock, in the period from 1980–1982. 11,230 fish were collected and examined during the periods from 1993–1999 and 2005–2011 and consisted partly of the fish originating from imported and introduced larvae and partly of the individuals belonging about …

Diversity And Distribution Of Mongolian Fish: Recent State, Trends And Studies, Yuri Dgebuadze, Bud Mendsaikhan, Ayurin Dulmaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The studies in recent years (2000-2011) have allowed to make more precise the list and ranges of Mongolian fish. This is connected with new findings as well as the continuing process of invasion of alien species. Climate change and increase of human impact transformed ranges and local distribution of fish during last 30 years. Bias on ratio of ecological guilds, number of pathological findings are increasing, and declining of local diversity, rate of growth and fecundity of many species of fish are observed. In the course of long-term observation was confirmed periodically drying of waters of the Central Asian Lake …

Indicators Of Pasture Digression In Steppe Ecosystems Of Mongolia, Elena V. Danzhalova, S. N. Bazha, P. D. Gunin, Yu. I. Drobyshev, T. I. Kazantseva, A. V. Prischepa, N. N. Slemnev, E. Ariunbold

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The research shows that widely used key measures of vegetation structure (species diversity, projected cover and above-ground phytomass) are not always suitable as indicators of pasture degradation. Based on an analysis above-ground phytomass composition, new quantitative indices are offered that give a more realistic picture of rangeland condition in Mongolia.

Some Taxonomic Records Of Aquatic Insects In The Eroo River Basin (West Khentii, Northern Mongolia), Purevdorj Surenkhorloo, Ravchig Samiya, Jolanta Slowik, Michael Mühlenberg

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the Eroo basin of Mongolia, many species of aquatic insects have been recorded including five species of Diptera in the families Psychodidae, Dixidae, and Blephaceridae and 25 species across eight families of stoneflies. One species of Psychodidae, Bazarella baikalensis Wagner is reported for the first time in Mongolia while the other families are discussed and a species list is provided for the country.

Structure And Productivity Of Haloxylon Ammodendron Communities In The Mongolian Gobi, Tamara I. Kazantseva, Nikolay N. Slemnev, Pjotr D. Gunin, Sh. Tsooj

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Communities of Haloxylon ammodendron are widespread in the Mongolian Gobi where they play a significant role in biodiversity preservation. They occupy several main types of habitats, showing differences in density, projective cover, and productivity. Haloxylon ammodendron plays a similar, if not even more important role in the arid zone of Mongolia as the principal forest-making trees in the Northern part of the country. The complex set of quantitative parameters of Haloxylon ammodendron stands studied here in respect to temporal dynamics can serve as an indicator of both the vitality of desert ecosystems, and of environmental change.

Leptodactylus Pentadactylus, Miriam M. Heyer, W. R. Heyer, Rafael O. De Sá

Biology Faculty Publications

Adult Leptodactylus pentadactylus (Figure 1) are large, the head is about as wide as long, and the hind limbs are moderately long (Table 1; Heyer and Thompson [2000] provided definitions of adult size and leg length categories for Leptodactylus). Male vocal sacs are not visible externally or are moderately expanded as a single sac. Sexually active males usually do not have hypertrophied forearms (the largest male examined, 195 mm SVL, has very weakly hypertrophied forearms), only the largest males have a single small to moderate size black spine on each thumb. No males have chest spines. Dorsolateral folds are …

Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range, Joseph S. Johnson

Theses and Dissertations--Animal and Food Sciences

Bat populations in the eastern United States are currently declining at unprecedented rates as a result of habitat loss, commercial wind energy development, and white-nose syndrome. Effective conservation of these declining populations requires knowledge of several aspects of summer and winter ecology, including daytime habitat use (day-roost selection and social behaviors), nocturnal habitat use (foraging habitat selection, prey selection, and prey abundance), and winter hibernation (torpor) patterns. This dissertation addresses these questions for Rafinesque’s big-eared bat (Corynorhinus rafinesquii), a species of conservation concern in the southeastern United States. Kentucky represents the northern edge of the range of Rafinesque’s …

Fall 2012, Nsu Oceanographic Center

Currents

No abstract provided.

Biology Department Newsletter, No.2, Sacred Heart University

Biology Newsletter

No abstract provided.

Control And Passive Treatment Of Runoff From Horse Muck Storage Structures Using Rain Gardens, Hillary K. Otte

Theses and Dissertations--Forestry and Natural Resources

Runoff from livestock operations may contain a variety of pathogens and high levels of nutrients and other harmful contaminants, and is of particular concern in central Kentucky as watersheds are threatened by waste generated from a high concentration of equine activity. Rain gardens are a type of stormwater management tool used to capture and passively treat runoff. This project aimed to incorporate rain gardens into the horse muck storage structures at a thoroughbred facility in the Canr Run watershed in Lexington, Kentucky. Water quality data from soil water within two rain garden muck pads and two control pads, and grab …

Priority Effects Among Young-Of-The-Year Fish: Reduced Growth Of Bluegill Sunfish (Lepomis Macrochirus) Caused By Yellow Perch (Perca Flavescens)?, Mark A. Kaemingk, Jeffrey C. Jolley, David W. Willis, Steven R. Chipps

Natural Resource Management Faculty Publications

1. When available, Daphnia spp. are often preferred by age-0 yellow perch and bluegill sunfish because of energetic profitability. We hypothesised that predation by age-0 yellow perch could lead to a midsummer decline (MSD) of Daphnia spp. and that priority effects may favour yellow perch because they hatch before bluegill, allowing them to capitalise on Daphnia spp. prior to bluegill emergence. 2. Data were collected from 2004 to 2010 in Pelican Lake, Nebraska, U.S.A. The lake experienced a prolonged MSD in all but 1 year (2005), generally occurring within the first 2 weeks of June except in 2008 and 2010 …

Diversity Among Macroalgae-Consuming Fishes On Coral Reefs: A Transcontinental Comparison, Adriana Verges, Scott Bennett, David R. Bellwood

Research outputs 2012

Despite high diversity and abundance of nominally herbivorous fishes on coral reefs, recent studies indicate that only a small subset of taxa are capable of removing dominant macroalgae once these become established. This limited functional redundancy highlights the potential vulnerability of coral reefs to disturbance and stresses the need to assess the functional role of individual species of herbivores. However, our knowledge of species-specific patterns in macroalgal consumption is limited geographically, and there is a need to determine the extent to which patterns observed in specific reefs can be generalised at larger spatial scales. In this study, video cameras were …

Ontogeny And Littoral Structure Of Lakes Created On Phosphate Mined Lands Of Central Florida, Chrysoula Mitraki

USF Tampa Graduate Theses and Dissertations

Created lakes are an end product of phosphate mining in Florida. Beginning in 1975, Florida reclamation rules set criteria for phosphate created lakes aiming to approximate the structure of natural lakes, and emphasizing extensive littoral zones with both emergent and submersed vegetation.

Lake development relative to lake age and design were examined for 22 phosphate lakes representing a 40-year age trajectory, utilizing water quality and benthic invertebrate communities from littoral and deep-water locations (Chapter 1). The relative importance of morphometry and lake age in the development of littoral plant communities was examined using multiple vegetation surveys throughout the year, in …

Greenhouse Gas Fluxes In Southeastern U.S. Coastal Plain Wetlands Under Contrasting Land Uses, Jennifer L. Morse, Marcelo Ardón, Emily S. Bernhardt

Environmental Science and Management Faculty Publications and Presentations

Whether through sea level rise or wetland restoration, agricultural soils in coastal areas will be inundated at increasing rates, renewing connections to sensitive surface waters and raising critical questions about environmental trade-offs. Wetland restoration is often implemented in agricultural catchments to improve water quality through nutrient removal. Yet flooding of soils can also increase production of the greenhouse gases nitrous oxide and methane, representing a potential environmental trade-off. Our study aimed to quantify and compare greenhouse gas emissions from unmanaged and restored forested wetlands, as well as actively managed agricultural fields within the North Carolina coastal plain, USA. In sampling …

Bacterial Community Structure Of Contrasting Soils Underlying Bornean Rain Forests: Inferences From Microarray And Next-Generation Sequencing Methods, Sabrina E. Russo, Ryan Legge, Karrie A. Weber, Eoin L. Brodie, Katherine C. Goldfarb, Andrew K. Benson, Sylvester Tan

School of Biological Sciences: Faculty Publications

Soil microbial diversity is vast, and we lack even basic understanding of how this diversity is distributed ecologically. Using pyrosequencing and microarray methods, we quantified the structure of bacterial communities in two contrasting soils underlying Bornean rain forest (clay and sandy loam) that differ markedly in soil properties, aboveground tree flora, and leaf litter decomposition rates. We found significant soil-related taxonomic and phylogenetic differences between communities that, due to their proximity, are independent of climate. Bacterial communities showed distinct compositional and taxon-abundance distributions that were significantly correlated with the structure of the overlying tree community. Richness of bacteria was greater …