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 89 for “"seasonal differences"”.
-
Seasonal differences in apparent digestibility and intake of tall fescue by horses
… Saddlebred horses were used to determine seasonal differences in apparent digestibility of Ky 31 tall fescue (Festuca arundinacea Schreb.) pasture by horses. Three trials were conducted with collection periods beginning August 27, 1984; January 8, 1985; and June 3, 1985. Each 72 h …
-
Seasonal differences in apparent digestibilities of fescue and orchardgrass/clover pastures by horses
An experiment was conducted to determine intake and apparent digestibilities of Kentucky 31 tall fescue (<i>Festuca arundinacea</i> schreb.) and orchardgrass/clover (<i>Dactylus glomerata</i> L./<i>Trifolium pratense</i> L.) pastures in different seasons of the year. Three digestion trials were …
-
Seasonal Differences in Diet of Two Predatory Fishes in Relation to Reef Type in the Inshore Northern Gulf of Mexico
… (CPUE) and diet composition (%IRI) changes seasonally within Spotted Seatrout, <em>Cynoscion nebulosus</em>, and Sand Seatrout, <em>Cynoscion arenarius</em>, to view which trophic levels are interacting in relation to different reef type (high relief profile vs. low profile relief). A …
-
Spatial and temporal distribution of larval fishes in a large tidal river.
… indicated significant spatial and temporal differences in assemblage composition on multiple scales. Differences in assemblage composition were analyzed using non-metric multidimensional scaling (NMS). Interannual differences were attributable to anadromous and semi-migratory species. …
-
Sex and seasonal variation in hippocampal volume and neurogenesis in the eastern chipmunk, Tamias striatus
… been found to differ between the sexes and vary seasonally in tandem with spatial behaviours such as food-caching and mating. However, few studies have simultaneously compared across sex and season, and the literature contains inconsistencies. The present study examined sex and seasonal …
-
Comportamento alimentar, padrão de atividades e uso do espaço por Alouatta fusca (Primates, Platyrrhini) em um fragmento degradado de Floresta Atlântica no Estado do Rio de Janeiro
… fruits (12%) and flowers (10%). Significant differences were detected between percentages in the use of leaves and flowers among seasons. Leaf consumption was greater in the Autumn and Winter. Flower comsumption was greater in the Spring and in the Summer. The group spent 73% of the day …
-
The potential of Grateloupia filicina (Lamouroux) J. Agardh. for mariculture: culture experiments and observations on shore phenology
… determined in August and September to test for seasonal differences in shore phenology, and whether G. filicina is monoecious or dioecious, since there is disagreement on this in the literature. Spore release was easy to achieve, even without stressing the parent plant. Growth of crusts was …
-
Determination of Habitat Preferences of Pronghorn (Antilocapra americana) on the Rolling Plains of Texas Using GIS and Remote Sensing
… of physical features of the landscape. Seasonal differences in habitat utilization were evident, and animals tended to move shorter distances at night than they did during daylight hours.
-
Patterns of resource use by livestock during and after drought in a communal rangeland in Namaqualand
… of land and moved around extensively to exploit seasonal differences in the availability of forage and water. With the settlement of the Europeans in the Cape the indigenous people lost most of their land to the colonists. The Nama people were, therefore, restricted to smaller rangelands and …
-
Influence of weekdays, weekends, bandhas and weather conditions on particulate matter (PM10) concentrations in the Kathmandu Valley in Nepal
… in the Kathmandu Valley. Within station seasonal differences in PM10 concentrations were compared using t-tests. Linear mixed effects regression models were used to examine the effects of weekends or bandh days on PM10 concentrations. Results showed significant (p<0.001) seasonal …
-
A STUDY OF PEAK INSTANTANEOUS AND AVERAGE DAILY DISCHARGES FROM SMALL PRAIRIE WATERSHEDS
… value of the peak ratio for values less than 2. Seasonal differences in peaking characteristics between basins above 4000 feet and those below this altitude are discussed.
-
Seasonal dispersal tendencies of sylvan deer mice (peromyscus maniculatus) with montana rangelands
We examined seasonal dispersal habits of sylvan deer mice (Peromyscus maniculatus) within two Montana rangeland types over a three - year period. The rangeland types included a grassland and shrub-steppe habitat. Within the state of Montana, both habitat types commonly contain peridomestic settings …
-
Seasonal dispersal tendencies of sylvan deer mice (peromyscus maniculatus) with montana rangelands
We examined seasonal dispersal habits of sylvan deer mice (Peromyscus maniculatus) within two Montana rangeland types over a three - year period. The rangeland types included a grassland and shrub-steppe habitat. Within the state of Montana, both habitat types commonly contain peridomestic settings …
-
The meridional and seasonal variability of the carbonate system in the Southeast Atlantic sector of the Southern Ocean: SCALE 2019 Experiment
… data, distant areas like polar oceans remain seasonally undersampled. Consequently, there may be a significant gap in our understanding of biological implications of future ocean acidification (OA). This study seeks to examine the seawater state conditions of the carbonate system that are …
-
Effects of atmospheric pressure loading on GPS measurements
… GPS sites provided insight on coastal and seasonal differences as well as the relative impact of atmospheric pressure loading on annual vertical displacements. Our findings suggest that accounting for the inverted barometer response [Farrell, 1972] of the ocean at coastal sites provides a …
-
Hierarchical Variation in Cellulose Decomposition Across Southern Ontario Reference Streams
… ANOVAs, and comparisons of regional, habitat and seasonal differences were studied using a linear mixed effects model (LMEM). A partial least squares (PLS) regression analysis was performed to identify environmental variables associated with decomposition patterns. I found that variance associated …
-
Seasonal habitat and movement ecology of adult brook trout in a northern Michigan headwater stream
… and habitat use strategies. Habitat needs change seasonally and ontogenetically, but the degree to which brook trout move among suitable habitats depends on life history strategy and stability in environmental conditions. This study examined the seasonality of stream-resident adult brook trout …
-
Fungi Associated with Herbaceous Plants in Coastal Northern California
… was organized to allow for the detection of seasonal differences in pathogen presence on aerial plant parts. The objective of this study was to identify microbial species present on herbaceous plants using ITS1 sequence analysis. Throughout March of 2018 to March of 2020, a total of 843 …
-
Denitrification in sediments of headwater streams in the southern Appalachian Mountains, USA
… USA. Stream water and sediments were sampled seasonally in two streams of contrasting nitrate availability, Noland Creek (high NO₃-N) and Walker Branch (low NO3-N). Eight additional streams with varying nitrate levels were sampled once during summer. Stream sediments were incubated at ambient …
-
Competition for anchovy (Engraulis capensis) and sardine (Sardinops sagax) between the Cape Gannet (Morus capensis), Cape fur seal (Arctocephalus pusillus pusillus) and the purse-seine fishery on the west coast of South Africa
… during seasons of poor recruitment. Furthermore, seasonal differences in the catches of the three predators are related to the recruitment, growth and migration of the prey species. The study confirmed previous observations that gannets prefer sardine to anchovy by showing gannet exploitation of …
Page 1 of 5