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.
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Showing 1 to 16 of 16 for “"evaporative water loss"”.
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Effects of temperature on gular fluttering and evaporative water loss in four sympatric cormorants in southern Africa
… for dissipating heat but expensive in terms of evaporative water loss. This study examined gular fluttering behaviour of four species of southern African cormorants, crowned ( Microcarbo coronatus ), Cape ( Phalacrocorax capensis ), bank ( Phalacrocorax neglectus ), and white-breasted ( …
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The Physiological and Behavioural Consequences of Reduced Scalation in Captive-bred Phenotypes of the Bearded Dragon (Pogona vitticeps Ahl 1926)
… their tough, scaled integument and low rates of evaporative water loss. Whether or not there is a causal relationship between the two has been a contentious issue. There also remains the question of whether the lepidosaur scale forms a barrier to ultraviolet (UV) light. Thirdly, there is evidence …
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Temperature regulation and metabolic rhythms in populations of the house sparrow Passer domesticus
… Measurements were made of metabolism, evaporative water loss, and body temperatures at various ambient temperatures. These physiological properties were compared among four populations of house sparrows from Boulder, Colorado; Syracuse, New York; Ann Arbor, Michigan; and Houston, Texas. …
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Aspects of physiology of the angulate tortoise, Chersina angulata, with special emphasis on the influence of body size
… dealing with more of its thermoregulation and water relations was begun (S. Els pers. comm.). This study aims to examine the relationships between body size and the rates of resting metabolism, evaporative water loss and heat transfer. The relationship of the changes in certain physical …
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Physiological tolerances of high temperatures in Fynbos birds: implications for climate change
… the TNZ, birds expend extra energy to facilitate evaporative water loss in order to maintain a stable body temperature, while some species increase their body temperature to conserve water. The increased costs of thermoregulation at temperatures above the TNZ can impair fitness, which could have …
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Winter Ecology and Ecophysiology of Prairie-Living Big Brown Bats (Eptesicus Fuscus)
… torpor and have mechanisms to decrease evaporative water loss during hibernation. I found typical levels of dehydration as winter progressed and my data indicate no use by bats of a supplemental water source. My research elucidates novel behaviours and traits of this population of E. …
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Energy and water balance in the lesser double-collared sunbird, Nectarinia chalybea
… feed on aqueous sugar solutions, and their water balance is tightly linked to their energy balance. When nectar is dilute and energy demands are high, consumption of a large excess of preformed water is inevitable. Physiological implications of nectarivory for the lesser double-collared …
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Energy and water balance in the lesser double-collared sunbird, Nectarinia chalybea
… feed on aqueous sugar solutions, and their water balance is tightly linked to their energy balance. When nectar is dilute and energy demands are high, consumption of a large excess of preformed water is inevitable. Physiological implications of nectarivory for the lesser double-collared …
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The thermal implications and ecological consequences of coloration in selected species : tenebrionid beetles (Onymacris bicolor and Onymacris ungui cularis), Cape gannets (Morus capensis) and Cape cormorants (Phalacrocorax capensis)
… radiation, but colour is not relevant to heat loss by convection, or to heat flux between a beetle and a heated sand substratum, whether by emitted radiation or reflected visible radiation. 0. bicolor absorbs more heat by conduction and free convection from a heated substratum, but differences …
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Aspects of the energetics and renal physiology of some African arid-adapted rodents
… of temperature on thermoregulation, metabolism, evaporative water loss and thermal conductance was studied in the North East African pigmy gerbil, gerbillus ppusillus; This gerbil did not strictly maintain homoeothermy and like most arid-adapted rodents had a reduced basal metabolic rate. When G. …
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Physiological and behavioural responses to temperature and humidity in fossorial amphibians
… on the thermal sensitivity of metabolism and water loss in Ambystoma maculatum. My findings suggested that acute changes in temperature affected energy and water budgets. However, acclimatory changes in temperature affected metabolism but not water loss. I then examined how temperature (17°C …
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Developing a single dressing containing both antifungal and antibacterial drugs for treating mixed infections in diabetic foot ulcers
… exudate handling properties included porosity, water absorption (Aw), equilibrium water content (EWC), swelling index (Is), water vapour transmission rate (WVTR), evaporative water loss (EWL) and moisture content, drug dissolution by HPLC, in vitro antimicrobial and cell viability …
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Water relations of the endemic New Zealand frogs Leiopelma archeyi, L. Hamiltoni and L. Hochstetteri
Aspects of habitat and water balance physiology were compared between the endemic and anatomically primitive New Zealand frogs Leiopelma archeyi, L. hamiltoni and L. hochstetteri. Field studies in an area of the Coromandel Range showed that the partially sympatric L. archeyi and L. hochstetteri had …
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Cold Acclimation Response of Non-native Italian Wall Lizard (Podarcis siculus) Populations from New York and California
… and temperature dependent rates of water loss (EWL) were also compared between Italian wall lizards previously introduced to Long Island, NY and San Pedro, CA before and after the lab cold acclimation treatment. Because our study coincided with a cold snap during the spring 2018 …
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The influence of epiphytes on arthropods in the tropical forest canopy
… microsites with lower temperatures and reduced evaporative water loss compared to epiphyte-free spaces within the same tree crown. Quantitative sampling of the arthropods inhabiting three different epiphyte species provided compelling evidence for the specificity of epiphyte-associated faunas …