Global ETD Search
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Showing 1 to 17 of 17 for “"Seasonal fluctuation"”.
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ΒΙΟΛΟΓΙΑ ΚΑΙ ΟΙΚΟΛΟΓΙΚΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΟΥ ΛΕΥΚΟΤΣΙΚΝΙΑ (EGRETTA GARZETTA) ΣΤΗΝ ΤΕΧΝΗΤΗ ΛΙΜΝΗ ΚΕΡΚΙΝΗΣ ΣΕΡΡΩΝ
… ECOLOGY OF THE ABOVE SPECIES ACCORDING TO THE SEASONAL FLUCTUATION OF THE WATER LEVEL DURING THE CRUCIALTIME OF BREEDING. THE SEASONAL FLUCTUATION OF THE WATER LEVEL THE LAKE, AFFECTS POSSITIVELY THE FORAGING OF THE SPECIES (VARIOUS FEEDING SITES OR CREATED ANDNEGATIVELY THE BREEDING (LOSSES OF …
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PHYTOPLASMAS-ENDOPHYTES INTERACTIONS: THE CASE STUDY OF GRAPEVINE YELLOWS RECOVERY
… endophytic bacterial community by studying the seasonal fluctuation of bacterial species associated with healthy, FDp-diseased and recovered plants during phytoplasma infection process. Statistical analysis indicated that, before phytoplasma titre inside diseased plant tissues becomes …
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THE AUTECOLOGY OF THE MEADOW THISTLE (Cirsium dissectum L. Hill) ON DEVON RHoS PASTURES, WITH PARTICULAR REFERENCE TO THE EFFECT OF MAJOR ENVIRONMENTAL VARIABLES ON THE POPULATION DYNAMICS
… was found to be relatively high with little seasonal fluctuation. Mineral nutrient status was characterised by particularly low phosphorus, below optimal nitrogen, ample calcium and potassium and a soil pH which was only mildly acid. The physiological characteristics of C. dissectum were …
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Ecology and conservation of the southern woolly lemur (Avahi meridionalis) in the Tsitongambarika Protected Area
… selection, and dietary choices, suggesting a seasonal fluctuation of resources. The competition with L. fleuretae may explain the dietary breadth reduction during the lean season and the opportunistic cathemeral activity that I found in A. meridionalis. Teachers retained most of the …
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The ecology and management of feral cat colonies. A survey of feral cat colonies in Great Britain and an experimental field study of the effect of neutering on the ecology, behaviour and social organisation of a single colony.
… Before neutering there appeared to be a seasonal fluctuation in numbers as a result of natality$ mortality and migration. Male immigrants were recorded. After neutering the colony remained stable in size and only one (female) immigrant was observed. The ecology and behaviour of 19 cats …
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Bird's response to seasonality: investigating the range dynamics of birds through dynamic occupancy models
Birds can respond to seasonal environmental fluctuations through migration. Among different migratory species and populations, there is varying sensitivity to different seasonal environmental cues, thus leading to different seasonal range dynamics and migration strategies. In this study, I used …
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Evaluating the nutritional status of Fraser fir [Abies fraseri (Pursh) Poir.] Christmas trees using foliar analysis and DRIS application
… locations within the crown, and effects due to seasonal changes. Extensive variation in nutrient concentrations existed with age of tissue collected, sample location with respect to aspect and vertical position, and normal seasonal fluctuation. Tree to tree nutrient variation indicated that …
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Influence of Plant Growth Regulators on Turfgrass Growth, Antioxidant Status, and Drought Tolerance
… content in terms of Fm730/Fm690 exhibited a seasonal fluctuation in endophyte [Neotiphodium coenophialum (Morgan Jones and Gams) Glenn, Bacon, Price and Hanlin] -free and endophyte-infected tall fescue. Application of SE enhanced SOD activity, photosynthetic capacity, and chlorophyll content …
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Vitamin A depletion and repletion in thoroughbred horses
… in vitamin A status throughout the study. A seasonal fluctuation of vitamin A status was observed regardless of supplementation. Supplementation with retinyl palmitate improved vitamin A status in all three diet groups, however, supplementation with β-carotene did not. Both neonates and young …
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The Stabilizing Effects of Sesame Oil Extraction Technologies on Seasonal Fluctuations in Food Consumption and Nutritional Status of Rural Farming Households in The Gambia
… ram press technology experience much less of a seasonal fluctuation in food consumption than those without ram press technology. Findings of this study also indicate that when women are given choices as to which technology is best for them, they will maximize their benefits from the available …
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Biochemical aspects of Tourette's Syndrome
… to differences in detection procedure and the seasonal fluctuation of some biochemical variables, notably cortisol. The generalised increase in neopterin in the TS subject group, suggests a difference in the activity of cytokine-inducible IDO as a likely source for this elevated KYN. Other …
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A reliability analysis of feller-bunchers in use in the South
… this subsequent period some machines exhibited a seasonal fluctuation, longer TBF in the summer and shorter in the winter. There were no significant differences in TBF among the three types of feller-bunchers. The greatest amount of variability occurred among machines of the same type. A …
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The derivation of fire hazard indices and burning prescriptions from climatic and ecological features of the fynbos biome
… danger indices. The NFDRS reflected the expected seasonal trends in fire potential accurately, and indices compared well with actual fire occurrence. Recorded weather conditions during eight large wildfires were used to generate fire danger indices to determine the value of the various indices for …
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The derivation of fire hazard indices and burning prescriptions from climatic and ecological features of the fynbos biome
… danger indices. The NFDRS reflected the expected seasonal trends in fire potential accurately, and indices compared well with actual fire occurrence. Recorded weather conditions during eight large wildfires were used to generate fire danger indices to determine the value of the various indices for …
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Higher fungi in soils of coastal Arctic tundra plant communities
… and .29 to 1.97 g/m²/cm at the 6-7 cm depth. Seasonal fluctuation of mycelium showed early season vernal highs followed by,an abrupt decline to mid season, a build up to a Fall peak concurrent with fungal fruiting and a general decline to season endings and freeze-up. Amplitudes of mycelium …
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Μελέτη των σχέσεων μεταξύ των φυσικοχημικών παραγόντων υγειονολογικού ελέγχου και της ολικής μικροβιακής χλωρίδας υδάτινων οικοσυστημάτων: Εφαρμογή στην λίμνη Παμβωτιδα
… is the subject of the present study. The seasonal and daily fluctuation was also investigated. Over November 1985 - October 1988 water samples were examined for the following parameters: Water-temp., pH, conductivity, D.O., B.O.DS, C.O.D., NO₃⁻, NO₂⁻, PO4⁻³, Chlorophyll-A, CL2, C.F.U/ML. …