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  • 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

Behavior of the greater sandhill crane

Voss, Karen Schmitz, January 1976 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1976. / Title from title screen (viewed July 7, 2009). Includes bibliographical references (p. 142-144).
2

Behavior of the greater sandhill crane

Voss, Karen Schmitz, January 1976 (has links)
Thesis--Wisconsin. / Includes bibliographical references (leaves 142-144).
3

A comparative study of sandhill crane subspecies

Baldwin, John H. January 1900 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 100-105).
4

The sandhill crane in Arizona

Perkins, Dwight Lee January 1981 (has links)
No description available.
5

Migration ecology and wintering grounds of sandhill cranes from the Interlake region of Manitoba

Melvin, Scott Merrill. January 1982 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1982. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
6

Factors influencing nest success of greater sandhill cranes at Malheur National Wildlife Refuge, Oregon /

Ivey, Gary L. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 31-38). Also available on the World Wide Web.
7

The Hartley site (FaNp-19) and the use of sandhill environments in the late precontact period

Hanna, Margaret Jane 18 June 2007
The Hartley site (FaNp-19) is a Late Precontact Period multicomponent habitation and bison kill and processing site located on the periphery of a sand dune environment surrounded by grasslands. The Hartley site, located within the Saskatoon city limits, was originally identified by Ken Cronk and members of the Saskatoon Archaeological Society in the 1950s. Subsequent excavations by Millenium Consulting Ltd., the University of Saskatchewan, Western Heritage Services Inc., and Stantec Consulting Ltd. have all added to the database of knowledge pertaining to this site. Radiometric dates and the recovery of artifacts characteristic of the Avonlea Horizon, the Old Womens Phase, and the Mortlach Phase have demonstrated that this region was a popular place for occupation and bison procurement during the Late Precontact Period. <p>A detailed analysis of the faunal remains recovered from the area known as the Wooded Hollow has demonstrated that this assemblage differs significantly from the remains recovered from the previously researched Brushy Depression. It appears that bison were being heavily harvested and that the use of secondary faunal sources was extremely limited. Determination of seasonality is based on cluster and discriminant function analysis of carpal, tarsal, longbone and phalange data. The resulting herd structure of almost equal numbers of males and females suggests an occupation during the rut, or the fall months. Some immature elements and non-bison remains suggest occupation may have occurred in the spring. It is therefore possible that this region was utilized over a period of time for the purposes of procuring animals from the spring to the fall months. The complete lack of foetal bone in this region suggests that, unlike in the Brushy Depression, the Wooded Hollow was not occupied during the winter months. <p>Taphonomic factors were considered in performing a complete faunal analysis of this thesis. Non-human agents and associated processes suggest that the assemblage was buried quickly after the site was vacated. The extremely fragmented nature of the assemblage, however, suggests that humans had a greater effect on the assemblage than the non-human agents. Based on breakage patterns it is determined that these remains were being processed for the purposes of both marrow and grease extraction. Application of a site determination model also suggests that it is likely that both kill and processing activities occurred in this area. <p>Location of the Hartley site within a dune environment is linked to the activities that occurred at this site. A review of ethnographic accounts of bison pounding and surrounding activities has revealed that availability of ecological resources such as wood and necessary topographic features characteristic of dune environments were essential to the success of bison procurement. Although it has been suggested that settlement of these regions is also linked to the variety and stability of resources in ecotones, or areas of resource overlap, between grassland and sandhill environments, a review of several faunal assemblages from various similar Northern Plains assemblages reveals that bison was by far the dominant species exploited. Variety in terms of faunal resources may not have been a factor at all. It is therefore suggested in this thesis that settlement on the periphery of sandhill environments is linked to the presence of bison in the surrounding grassland region, as well as to the stability of the resources in wetland areas supported by high water tables in the dune environments. Also known as ecological islands these regions may have been more stable in terms of essential resources such as wood and other botanical resources, in addition to providing areas of shelter during the colder winter months. It is concluded that settlement and large scale bison procurement activities in several sandhill environments on the Northern Plains is tightly linked to availability of bison, the availability of wood, a conducive topographic setting, and the stability of resources in these ecological islands.
8

The Hartley site (FaNp-19) and the use of sandhill environments in the late precontact period

Hanna, Margaret Jane 18 June 2007 (has links)
The Hartley site (FaNp-19) is a Late Precontact Period multicomponent habitation and bison kill and processing site located on the periphery of a sand dune environment surrounded by grasslands. The Hartley site, located within the Saskatoon city limits, was originally identified by Ken Cronk and members of the Saskatoon Archaeological Society in the 1950s. Subsequent excavations by Millenium Consulting Ltd., the University of Saskatchewan, Western Heritage Services Inc., and Stantec Consulting Ltd. have all added to the database of knowledge pertaining to this site. Radiometric dates and the recovery of artifacts characteristic of the Avonlea Horizon, the Old Womens Phase, and the Mortlach Phase have demonstrated that this region was a popular place for occupation and bison procurement during the Late Precontact Period. <p>A detailed analysis of the faunal remains recovered from the area known as the Wooded Hollow has demonstrated that this assemblage differs significantly from the remains recovered from the previously researched Brushy Depression. It appears that bison were being heavily harvested and that the use of secondary faunal sources was extremely limited. Determination of seasonality is based on cluster and discriminant function analysis of carpal, tarsal, longbone and phalange data. The resulting herd structure of almost equal numbers of males and females suggests an occupation during the rut, or the fall months. Some immature elements and non-bison remains suggest occupation may have occurred in the spring. It is therefore possible that this region was utilized over a period of time for the purposes of procuring animals from the spring to the fall months. The complete lack of foetal bone in this region suggests that, unlike in the Brushy Depression, the Wooded Hollow was not occupied during the winter months. <p>Taphonomic factors were considered in performing a complete faunal analysis of this thesis. Non-human agents and associated processes suggest that the assemblage was buried quickly after the site was vacated. The extremely fragmented nature of the assemblage, however, suggests that humans had a greater effect on the assemblage than the non-human agents. Based on breakage patterns it is determined that these remains were being processed for the purposes of both marrow and grease extraction. Application of a site determination model also suggests that it is likely that both kill and processing activities occurred in this area. <p>Location of the Hartley site within a dune environment is linked to the activities that occurred at this site. A review of ethnographic accounts of bison pounding and surrounding activities has revealed that availability of ecological resources such as wood and necessary topographic features characteristic of dune environments were essential to the success of bison procurement. Although it has been suggested that settlement of these regions is also linked to the variety and stability of resources in ecotones, or areas of resource overlap, between grassland and sandhill environments, a review of several faunal assemblages from various similar Northern Plains assemblages reveals that bison was by far the dominant species exploited. Variety in terms of faunal resources may not have been a factor at all. It is therefore suggested in this thesis that settlement on the periphery of sandhill environments is linked to the presence of bison in the surrounding grassland region, as well as to the stability of the resources in wetland areas supported by high water tables in the dune environments. Also known as ecological islands these regions may have been more stable in terms of essential resources such as wood and other botanical resources, in addition to providing areas of shelter during the colder winter months. It is concluded that settlement and large scale bison procurement activities in several sandhill environments on the Northern Plains is tightly linked to availability of bison, the availability of wood, a conducive topographic setting, and the stability of resources in these ecological islands.
9

Nesting habitat and diet studies of sandhill cranes (Grus canadensis) from the central and north coast of British Columbia

Roessingh, Krista 24 August 2012 (has links)
The purpose of this study was to document the occurrence, habitat, and diet of sandhill cranes that breed in coastal British Columbia, a population believed to belong to the subspecies rowani. Specific objectives were to: 1) locate cranes and their nests in selected coastal areas of the central and north coasts (5138’N, 12805’W - 5400’N, 13037’W) and foster observer expertise in conducting aerial crane surveys; 2) describe sandhill crane nest habitat using a range of stand- and site-level characteristics; and, 3) identify diet content of breeding cranes from faecal samples. Helicopter surveys were conducted within 1.5 km of the coastline during May 2007 and 2008. Twenty nest sites were visited in 2008 to collect data on nest habitat characteristics. Satellite imagery was used to measure stand-level and landscape features for 29 nests. Faecal samples were collected at 6 nest and roost sites. During the 2008 survey, 104 cranes and 19 nests were counted over a 430 km2 area (average survey effort = 2.0 km2/min.). Crane nests were located in bog habitat, while cranes frequented bogs, shorelines, and marshes. Nests were in bog pools under 0.5 ha in size with the exception of one that occured in a 1.2 ha beaver-dammed pond (median = 0.10 ha, inter-quartile range (IQR) = 0.037 – 0.17 ha, n = 29), and had median water depth of 56 cm around nest islets (IQR = 49 – 77 cm, n = 21). Bog pools were in forest or woodland bog openings with median distance from the pool edge to the nearest treeline of 46 m (IQR – 24 – 160 m, n = 25) and median forest buffer width of 150 m (IQR = 93 – 260 m, n = 25). Forested habitat may serve as a corridor for cranes with pre-fledged young connecting bog nest and roost sites with shoreline foraging areas. Median distance from nest to shoreline was 400 m (IQR = 200 – 500 m, n = 28). Food items characteristic of faecal samples (n = 138) included mussel (Mytilus edulis), periwinkle (Littorina littorea) and limpet shells, insects, sedge (Carex spp.) and crowberry (Empetrum nigrum), plant remains, and crab remains. Changes in the probability of observing periwinkle and limpet in samples were observed between sites, while the frequency of occurrence of insects differed between time periods and that of sedge, crowberry, and mussels differed between time periods and sites. Sandhill cranes were sparsely distributed on inner and outer coastal islands with bog nesting habitat and sheltered intertidal foraging habitat. / Graduate
10

Effects of Prescribed Fire on the Diversity of Soil-Dwelling Arthropods in the University of South Florida Ecological Research Area, Tampa, Florida

Bellanceau, Celina 15 February 2007 (has links)
Leaf litter samples were used to study arthropod diversity in the University of South Florida Ecological Research Area. Arthropods were collected from different plots of different prescribed burn frequencies (1year, 2 year, 5 year, 7 year and no burn frequencies). Differential responses of arthropods to burn frequency were studied. It was expected that burn frequency would affect arthropod richness and diversity and that the pattern of diversity and richness would follow the Intermediated Disturbance Hypothesis. It was also expected that richness and diversity would be correlated with the amount of leaf litter present. Preliminary results suggest that there are short-term and long-term differences among arthropod communities in response to fire history and vegetation and that the amount of leaf litter may influence the distribution of arthropod taxa.

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