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241.
Paulina L. González-Gómez Natalia Ricote-Martinez Pablo Razeto-Barry Ivania S. Cotorás Francisco Bozinovic 《Behavioral ecology and sociobiology》2011,65(11):2141-2148
A common assumption in behavioral ecology is that the valuation of a resource by consumers depends on the energetic value
of the resource itself. Nevertheless, the value of a resource may be relative to the condition of the organism, which is in
turn related to the abiotic conditions such as ambient temperature. We developed a theoretical model—incorporating these untested
assumptions—to predict a functional relationship between territorial aggression and ambient temperature for individuals sensitive
to daily variations in energy availability. We evaluated our theoretical predictions against a field experiment carried out
with the hummingbird Sephanoides sephaniodes. The model predicted a quadratic relation between aggression intensity and ambient temperature. Field data were better explained
by a quadratic equation than a linear function, suggesting the existence of lower and upper thresholds of temperature which
determine the intensity of territorial defense. Ambient temperature affects energy expenditure for thermoregulation, and therefore,
it fixes the benefit level that must be produced by the territory to pay the costs of its defense. Our findings strongly suggest
that abiotic conditions can change an animal evaluation of the yield of a resource and in turn influence the behavioral strategy
which it adopts. 相似文献
242.
Pogorzelski Stanisław J. Rochowski Paweł Grzegorczyk Maciej Boniewicz-Szmyt Katarzyna 《Environmental science and pollution research international》2021,28(5):5443-5454
Environmental Science and Pollution Research - The aim of the study was to quantify the adsorptive and thermo-elastic properties of snowmelt water surface films and their spatial-temporal evolution... 相似文献
243.
Przemieniecki Sebastian Wojciech Zapałowska Anita Skwiercz Andrzej Damszel Marta Telesiński Arkadiusz Sierota Zbigniew Gorczyca Anna 《Environmental science and pollution research international》2021,28(7):8117-8127
Environmental Science and Pollution Research - The aim of this study was to assess the changes in chemical and microbial properties and enzymatic activity of soil enriched with vermicompost derived... 相似文献
244.
Radziemska Maja Wyszkowski Mirosław Bęś Agnieszka Mazur Zbigniew Jeznach Jerzy Brtnický Martin 《Environmental science and pollution research international》2019,26(21):21351-21362
Environmental Science and Pollution Research - The effect of soil amendments, i.e., compost, zeolite, and calcium oxide, on the chemical properties of soil contaminated with Cr(III) and Cr(VI) and... 相似文献
245.
Rogula-Kopiec Patrycja Rogula-Kozłowska Wioletta Pastuszka Józef S. Mathews Barbara 《Environmental Chemistry Letters》2019,17(1):551-558
Environmental Chemistry Letters - Beauty salons make a considerable part of the service sector. However, although the beauty salon staffs are exposed to a vast number of ambient chemicals during... 相似文献
246.
An extremely potent mutagen, 3‐chloro‐4(dichloromethyl)‐5‐hydroxy‐2(5/f)‐furanone (MX) is commonly present in chlorinated drinking water. Due to its high mutagenic activity and according to WHO guidelines its concentration should be controlled in drinking waters. Determination of MX is difficult due to ppt levels at which the compound usually exists in drinking waters. Derivatization with 2‐propanol is presented as a method which significantly lowers GC/MS detection level of MX. Suitability of 2‐propylation for derivatization of other hydroxyfuranones is also shown. 相似文献
247.
The use of surfactants in a bioremediation process is aimed at increasing the efficiency of the removal of hydrophobic contaminants from the environment. The subjects of the study were three alkyl polyglucosides (APGs) of different alkyl chain length: Glucopon 215 CS UP, Glucopon 600 CS UP, and Glucopon 650 EC. The impact of these surfactants on the surface properties of the test strain Pseudomonas fluorescens ATCC 14700, as well as on the biodegradation of diesel was tested. It was observed, that the length of alkyl chain has an influence on the cell surface properties. The modification of the cell surface hydrophobicity and the electrokinetic potential on the bacteria cells is dependent on the structure of Glucopon molecules. The elongation of alkyl chains in surfactant molecule caused an increase of the hydrophobic properties and a reduction of the electrokinetic potential on the bacteria cells. Moreover, the use of APGs below critical micelle concentration caused an increase of diesel oil biodegradation, especially in the case of Glucopons with longer alkyl chain (Glucopon 600 CS UP and 650 EC). The better diesel oil removal by tested strain after surfactant addition was correlated with the hydrophobic properties of bacteria strain. 相似文献
248.
Marek Nowacki Joanna Kowalczyk-Anioł Karolina Królikowska Małgorzata Pstrocka-Rak 《国际发展与全球生态学杂志》2018,25(6):562-567
The aim of this article is to evaluate selected tourism development strategies in Poland, in the context of strategic planning, stakeholders’ participation, and sustainable development principles. A questionnaire evaluation of strategy (44 questions) was established and based on measurement scales developed and validated by other authors in earlier studies. The five authors of the study rated 37 tourism development strategies in 13 provinces, 11 cities, 5 counties, 6 municipalities, and 2 other areas. Analysis revealed that they implement paradigms of sustainable development of tourism to only a small extent. Definitely higher quality is documented for higher levels of administrative division. The highest rated domains of the tourism development strategy in the examined documents are Strategic Planning Indicators and Implementation, Monitoring, and Evaluation. 相似文献
249.
The aim of this work was to determine the concentration of 234U and 238U and calculate the values of the 234U/238U activity ratio in waters and sediments from the various regions of the southern Baltic Sea: Gdańsk Deep, S?upsk Narrow and Bornholm Deep. The concentration of uranium in analysed sediments from southern Baltic increase with core depth to what probably is connected with diffusion from sediments to water through interstitial water, where uranium concentration is much higher than in bottom water. The highest concentrations of uranium were observed in sediments of S?upsk Narrow (0.66-7.11 mg kg(-1) d.w.) and S?upsk Bank (0.61-6.93 mg kg(-1) d.w.), the lowest in sediments from Bornholm Deep (0.54-3.77 mg kg(-1) d.w.). The 234U/238U activity ratio results indicated that the sedimentation of terrigenic material and Vistula River transport are the general sources of uranium in the southern Baltic sediments. The value of 234U/238U activity ratio in sediments from reduction areas from southern Baltic (Gdańsk Deep and Bornholm Deep) indicated that reduction process of U(VI) to U(IV) and removing of anthropogenic uranium from seawater to sediments constitutes a small part only in Gdańsk Deep. 相似文献
250.
Zalewski M Karpiñska M Mnich Z Kapała J Zalewski P 《Journal of environmental radioactivity》2001,53(2):167-173
This paper presents the results of radon concentration measurements in the drinking water from the municipal water supply system and private wells located in the north-eastern part of Poland. The measurements were carried out on 643 samples using a liquid scintillation method. The mean value was found to be 5262 Bq m-3 with a maximum of 38347 Bq m-3. The samples were obtained from different water-bearing levels, i.e. surface water, deep borehole water and well water and have respective mean values of 3398, 5178 and 6155 Bq m-3. In 57 water samples, a guideline maximum level of 11,000 Bq m-3 was found to be exceeded. The observed radon concentration in water can contribute to a 2% increase in indoor radon concentration. 相似文献