• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 7
  • 2
  • 1
  • Tagged with
  • 9
  • 4
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Pygmy rabbit (Brachylagus idahoensis) habitat use, activity patterns and conservation in relationship to habitat treatments /

Lee, Janet E., January 2008 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Plant and Wildlife Sciences, 2008. / Includes bibliographical references.
2

An examination of scent-marking, individual odors, and individual discrimination in the raccoon (Procyon lotor)

Kent, Laura A. January 2009 (has links)
Title from title page of PDF (University of Missouri--St. Louis, viewed February 23, 2010). Includes bibliographical references.
3

The influence of faecal scent marks on the behaviour of the white rhinoceros (Ceratotherium simum simum)

Grün, Volker. January 2006 (has links)
Thesis (M.S.)--University of Canterbury, 2006. / Title from PDF title page (viewed on Feb. 23, 2008). Includes bibliographical references (p. 86-91).
4

The influence of faecal scent marks on the behaviour of the white rhinoceros (Ceratotherium simum simum) : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in School of Biological Sciences at the University of Canterbury, Christchurch, New Zealand /

Grün, Volker. January 2006 (has links)
Thesis (M. Sc.)--University of Canterbury, 2006. / Typescript (photocopy). Includes bibliographical references (leaves 86-91). Also available via the World Wide Web.
5

Characterization and identification of microbial communities in pigeon droppings using Culture-Independent techniques

Leareng, Samuel Keeng 08 1900 (has links)
M. Tech. (Department of Biotechnology, Faculty of Applied and Computer Science), Vaal University of Technology| / Pigeon droppings, found in abundance in most cities and towns where pigeons are found, are a source of potential yeast and molds into the environment. Invasive fungal infections are a cause of morbidity and often mortality in immunocompromised individuals. The objective of this study was to the identification of bacterial and mold agents from pigeon droppings. Pigeon droppings samples were collected from three locations during the winter and summer months and studied for the occurrence of bacteria, yeast and molds by utilising culture-independent techniques. Amplification of the 16S rDNA gene and the internal transcribed spacer (ITS) region, cloning and ARDRA and DGGE were used for the characterisation of the microbial populations followed by sequencing. Several mold and yeasts, as well as bacteria were found to be present in pigeon droppings, which can spread into the environment and be transmitted to immunocompromised individuals and children. DGGE analysis of the bacterial communities revealed banding patterns that clustered all but one winter samples and all summer samples, showing a high similarity among the microbial members in both seasons and sample locations. Fungal DGGE analysis revealed clusters that grouped summer and winter samples from Johannesburg and Pretoria while VUT samples were clustered on their own. From the identification of fungal and bacterial DNA, Cryptococcus species was the majority of fungi isolated from the dropping samples. Geotrichum, Kazachstania and Fusarium species were isolated from phylotypes obtained from ITS amplicons analysed by ARDRA. Lactobacillus and Enteroccoccus species, organisms usually found in the gastrointestinal tract were the common bacterial members identified. The results showed no difference in microbial communities across all sample locations, while seasonal changes also had no impact in microbial community patterns.
6

Avian seed dispersers of the invasive Rubus niveus (Rosaceae) in Santa Cruz Island, Galapagos, Ecuador

Soria Carvajal, Monica Cecilia. January 2006 (has links)
Title from title page of PDF (University of Missouri--St. Louis, viewed March 10, 2010). Includes bibliographical references (p. 26-31).
7

Vliv doby znečistění karoserie vozidla ptačím trusem na míru poškození laku / The Effect of the Time of Bird Droppings Remaining on the Vehicle Body on the Damage Degree of the Paintwork

Bílek, Tomáš January 2017 (has links)
This diploma thesis deals with the issue of the degree of damage done to the vehicle‘s body paint varnish by bird droppings; with respect to the influence of the pollution time on the thickness of the layer of lacquer. The first chapter deals with the importance of varnish and other layers of body protection, types of body varnish damage, painting technology, lacquer defects, bird droppings and its effects on the varnish of the vehicle‘s body. The second chapter is dedicated exclusively to the description, planning and measurement of the coated layers on the vehicle’s body contaminated with bird feces.
8

Potravní ekologie netopýra velkého (Myotis myotis) / Trophic ecology of the greater mouse-eared bat (Myotis myotis)

Bendová, Barbora January 2015 (has links)
In 2012 it was observed foraging ecology of the three males of greater mouse-eared bat (Myotis myotis), inhabiting individual roosts in the interior of road bridge near Bernartice, and the nearest nursery colony of the same species in the village Senožaty (district Pelhřimov). In the period April to September in Senožaty were made 14 collections at intervals of approximately 14 days and in the bridge near Bernartice at similar intervals were made 8 collections from each male in the period from May to September. From each collection were subsequently been analyzed 20 samples (pellets) by the traditional method of preparation of faeces. Overall it was from all the bats analyzed 760 samples, of which 280 from the nursery colony and 480 from males. Based on the analysis was found diet composition of individual bats and of the colony, where the overall character of the trophic niche of the greater mouse-eared bat, seasonal dynamics in it's diet composition, sex differences and individual differences between males were observed. From a point of view of it's hunting strategy the greater mouse-eared bat showed itself as a ground gleaner, in whose diet were dominated larger Coleoptera, of which the predominant component were large, flightless, mostly forest Carabidae, adding medium and smaller species of...
9

Valorisation de biodéchets pour la restauration de sites dégradés de Nouvelle-Calédonie / Biowaste valorization for restoration of New Caledonian degraded sites

Velayoudon, Prescilia 20 February 2015 (has links)
Les biodéchets tels que les boues de stations d’épuration ou les fientes de poules peuvent être utilisés pour l’amendement organique des sols. En Nouvelle-Calédonie, l’accroissement démographique a pour conséquence une augmentation de la production de ces déchets. Aussi, la gestion et le devenir de ces derniers est une problématique majeure pour les collectivités. D’autre part, il existe de nombreux sites dégradés liés à l’activité minière. Il s’agit notamment des sites miniers après exploitation, caractérisés par un substrat ultramafique, auxquels s’ajoutent les zones industrielles.L’objectif de cette thèse cherche à apporter des données sur la valorisation des biodéchets (boues d’épuration et fientes de poules) pour la restauration de sites dégradés. Trois types de site sont sélectionnés : un ferralsol non remanié, un ferralsol remanié par l’activité minière et un site industriel. A partir de ces études indépendantes, nous tenterons de répondre à l’opportunité de revégétaliser un site à partir du stock de graine du sol d’origine ou de végétalisé un site dépourvu de son sol d’origine par plantations. Sur ces 3 sites, il a été suivi les variables biométriques, chimiques des végétaux et les variables chimiques et physico-chimiques des substrats.Les résultats sont, dans l’ensemble, encourageants avec des effets très positifs sur la croissance végétale. La quantité de boue à apporter sera à moduler en fonction des objectifs à obtenir entre production végétale et diversité spécifique. La faible biodisponibilité des ETM du sol semble être favorable à l’épandage de biodéchets sur ces substrats spécifiques pour la réhabilitation des sites dégradés. / Biowaste like biosolids or poultry can be used for organic amendment of soils. In New Caledonia, the demographic development involves an increase in waste production and the management of these ones is highly important for local authorities. On the other hand, there are numerous degraded sites issued from mining activity. In particular mining sites after exploitation, characterized by an ultramafic substratum, and industrial sites The objective of this thesis consists to bring data on biowaste valorization (sewage sludge and poultry) for degraded sites restoration. Three kind of degraded sites are selected: a not-reorganized ferralsol, a ferralsol reorganized by the mining activity and an industrial site. From these independent studies, we try to evaluate the opportunity of revegetalization from the seed bank of the original soil, or vegetalized a site free of original soil by plantations. On these 3 sites, it was followed the biometric, chemical variables of the vegetal species and chemical and physico-chemical variables of the substrata. The results are encouraging, with positive effects on plant growth. The biosolids quantity should be modulating according to the objectives to obtain between plant production and specific diversity. The low bioavailability of the ETM seems to be favorable to the biowaste manuring of these specific substrata for the rehabilitation of the degraded sites.

Page generated in 0.0578 seconds