Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1143 for “"life history"”.
-
SCAPHIRHYNCHUS STURGEON EARLY-LIFE HISTORY
… understanding of sturgeon autecology during all life stages, especially during early life when high mortality occurs. To begin to understand sturgeon early-life history I determined river of origin on a multi-basin scale (i.e., potential rivers of origin). I then determined habitat needs and …
-
The life history of Z.S. Zotwana
Bibliography: leaves 181-195.
-
Evolution of life history strategies in Lophoziaceae
… field to analyse the patterns of variation in life history characters among members of the liverwort family Lophoziaceae. A combination of Principal Component and Cluster analyses was used to analyse data from literature in testing for recurrent suites of life history variation among species of …
-
Evolution of life history strategies in Lophoziaceae
… field to analyse the patterns of variation in life history characters among members of the liverwort family Lophoziaceae. A combination of Principal Component and Cluster analyses was used to analyse data from literature in testing for recurrent suites of life history variation among species of …
-
Early life-history ecology of Arctic benthic invertebrates
… the abiotic and biotic factors impacting early life-history bottlenecks in the Arctic Ocean and Woods Hole, MA. Many marine invertebrates have a biphasic life-history, with larvae that disperse in the water column then settle to the seafloor. Extreme population bottlenecks occur at larval and …
-
Life History of the Ozark Minnow, Dionda Nubila
… A search of the literature revealed no previous life history information for this species.
-
Life History of the Stippled Darter, Etheostoma Punctulatum
Aspects of the life history of the stippled darter, Etheostoma punctulatum, were studied in the Spring River, Missouri. A total of 481 specimens was collected from 3 March, 1983 to 19 April, 1984. Females attained a maximum standard length of 85 mm and males 83 mm. Both sexes had a longevity of …
-
Life History and Energy Relationships of Hydrophyllum Appendiculatum
Made available in DSpace on 2014-12-09T22:25:52Z (GMT). No. of bitstreams: 1 6910803.pdf: 4961404 bytes, checksum: 8d7416ede4a1161f02a3d9844eaafd3e (MD5) Previous issue date: 1968
-
The ecological life history of the Cape Bulbul
The study of the ecological life history of the Cape Bulbul Pycnonotus capensis was carried out in 20 hectares of coastal dune forest near Port Elizabeth, South Africa. Results from four years 1959 to 1962 are given in detail and only the number of breeding pairs present in 1958 have been used from …
-
An analysis of the evolution of life history traits
The evolution and relationship between life-history traits has been a popular research topic over the past several decades. Previous research has generally focused on a single or small number of species, or a single trait. I utilized multiple trait-based datasets to create a collection of 777 …
-
Snapping Turtle Life History on Lacreek Refuge, South Dakota
… turtle population on Lacreek National Wildlife Refuge in south-central South Dakota were conducted during 1965-67. Turtles captured by trapping, “hooking”, boxing nests and catching nesting females were measured, marked and released. Turtles were marked by toe-clipping, routing, flagging, …
-
The Life History of the Yoke Darter, Etheostoma Juliae
Aspects of the life history of the yoke darter, Etheostoma juliae Meek, were studied in the James River, Missouri. A total of 652 specimens was collected from September, 1981 through September, 1982. Yoke darters attained a maximum standard length of 71 mm and had a maximum longevity of slightly …
-
Some observations on the life history of Strophitus edentulus
Text is the Introduction to this thesis: Strophitus edentulus is a fresh water mussel which has been said to go through its metamorphosis both as a parasite on fish (Howard 1914) and without parasitism (Lefevre and Curtis 1912). This condition in Strophitus is rendered more interesting by the fact …
-
Local Adaptation for Life-History Traits in Silene Latifolia
A fundamental question in evolutionary ecology is how species adjust post colonization. The plant Silene latifolia was introduced to North America (NA) from Europe (EU) in the 1800s. The goal of this thesis was to test if Silene latifolia has become locally adapted across its range. My first …
-
Transcriptomic Insights into the Diplontic Life History of Diatoms
<p>An organism's life cycle is the direct result of its evolutionary history and represents a fundamental aspect of its ancestry and ecology. Yet the process of linking alternating life-history stages has proven to be challenging, if not impossible in some cases. Diatoms (Bacillariophyceae) are no …
-
Life history traits and population processes in marine bivalve molluscs
In this thesis, I investigated the how the life history characteristics of the clam Mya arenaria determine the population response to chronic contaminant exposure. To predict the potential responses of a broadcast-spawning life history such as that of M. arenaria, I surveyed the literature on a …
Page 1 of 58