Search Results - "Tsahar, Ella"

Cats in recent Chinese study on cat domestication are commensal, not domesticated by Bar-Oz, Guy, Weissbrod, Lior, Tsahar, Ella

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Distribution and extinction of ungulates during the Holocene of the southern Levant by Tsahar, Ella, Izhaki, Ido, Lev-Yadun, Simcha, Bar-Oz, Guy

“…The southern Levant (Israel, Palestinian Authority and Jordan) has been continuously and extensively populated by succeeding phases of human cultures for the…”
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Mammalian extinction in ancient Egypt, similarities with the southern Levant by Bar-Oz, Guy, Tsahar, Ella, Izhaki, Ido, Lev-Yadun, Simcha

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relationship between uric acid and its oxidative product allantoin: a potential indicator for the evaluation of oxidative stress in birds by Tsahar, Ella, Arad, Zeev, Izhaki, Ido, Guglielmo, Christopher G

“…Uric acid is the main nitrogenous waste product in birds but it is also known to be a potent antioxidant. Hominoid primates and birds lack the enzyme urate…”
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Impact on fruit removal and seed predation of a secondary metabolite, emodin, in Rhamnus alaternus fruit pulp by Tsahar, Ella, Friedman, Jacob, Izhaki, Ido

“…There are two contradictory approaches to explaining the presence of secondary metabolites in ripe fruits. One holds that they evolved toward enhancing…”
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Within Population Variation and Interrelationships between Morphology, Nutritional Content, and Secondary Compounds of Rhamnus alaternus Fruits by Izhaki, Ido, Tsahar, Ella, Paluy, Irena, Friedman, Jacob

“…• We studied within-species variation in and interrelations among morphological and chemical traits of ripe Mediterranean buckthorn (Rhamnus alaternus) fruit,…”
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Dietary protein influences the rate of 15N incorporation in blood cells and plasma of Yellow-vented bulbuls (Pycnonotus xanthopygos) by Tsahar, Ella, Wolf, Nathan, Izhaki, Ido, Arad, Zeev, Del Rio, Carlos Martínez

“…The rate at which an animal's tissues incorporate the isotopic composition of food determines the time window during which ecologists can discern diet changes…”
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Secondary Metabolite Emodin Increases Food Assimilation Efficiency of Yellow-Vented Bulbuls (Pycnonotus xanthopygos) by Tsahar, Ella, Friedman, Jacob, Izhaki, Ido

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Can birds be ammonotelic? Nitrogen balance and excretion in two frugivores by Tsahar, Ella, Martínez del Rio, Carlos, Izhaki, Ido, Arad, Zeev

“…We measured minimal nitrogen requirements (MNR), total endogenous nitrogen loss (TENL) and the effect of protein and water intake on the nitrogenous waste…”
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Do Nectar- and Fruit-Eating Birds Have Lower Nitrogen Requirements than Omnivores? An Allometric Test (¿Tienen las Aves Nectrarívoras y Frugívoras Requerimientos de Nitrógeno Menores que las Omnívoras? Una Prueba Alométrica) by Tsahar, Ella, Arad, Zeev, Izhaki, Ido, Rio, Carlos Martínez del

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Do Nectar- and Fruit-Eating Birds Have Lower Nitrogen Requirements Than Omnivores? an Allometric Test by Tsahar, Ella, Arad, Zeev, Izhaki, Ido, Martínez del Rio, Carlos

“…Abstract We used an allometric approach to compare the minimum nitrogen requirements (MNR) and the total endogenous nitrogen loss (TENL) of nectar- and…”
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DO NECTAR- AND FRUIT-EATING BIRDS HAVE LOWER NITROGEN REQUIREMENTS THAN OMNIVORES? AN ALLOMETRIC TEST by Tsahar, Ella, Arad, Zeev, Izhaki, Ido, Martínez del Rio, Carlos

“…We used an allometric approach to compare the minimum nitrogen requirements (MNR) and the total endogenous nitrogen loss (TENL) of nectar- and fruit-eating…”
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Hummingbirds arrest their kidneys at night: diel variation in glomerular filtration rate in Selasphorus platycercus by Bakken, Bradley Hartman, McWhorter, Todd J, Tsahar, Ella, Del Rio, Carlos Martínez

“…Small nectarivorous vertebrates face a quandary. When feeding, they must eliminate prodigious quantities of water; however, when they are not feeding, they are…”
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Secondary Metabolite Emodin Increases Food Assimilation Efficiency of Yellow-Vented Bulbuls (Pycnonotus Xanthopygos) by Tsahar, Ella, Friedman, Jacob, Izhaki, Ido

“…Abstract We studied the effect of the secondary metabolite emodin on food intake, food assimilation mass coefficient (AMC), feeding bout rate, and defecation…”
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Are the Low Protein Requirements of Nectarivorous Birds the Consequence of Their Sugary and Watery Diet? A Test with an Omnivore by Tsahar, Ella, Martínez del Rio, Carlos, Arad, Zeev, Joy, Jeannine P., Izhaki, Ido

“…Nectar‐feeding birds have remarkably low nitrogen requirements. These may be due either to adaptation to a low‐protein diet or simply to feeding on a fluid…”
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SECONDARY METABOLITE EMODIN INCREASES FOOD ASSIMILATION EFFICIENCY OF YELLOW-VENTED BULBULS (PYCNONOTUS XANTHOPYGOS) by Tsahar, Ella, Friedman, Jacob, Izhaki, Ido

“…We studied the effect of the secondary metabolite emodin on food intake, food assimilation mass coefficient (AMC), feeding bout rate, and defecation rate in a…”
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Within population variation and interrelationships between morphology, nutritional content, and secondary compounds of Rhamnus alaternus fruits. Commentary by IZHAKI, Ido, TSAHAR, Ella, PALUY, Irena, FRIEDMAN, Jacob, TEWKSBURY, Joshua J

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Evolutionary ecology of secondary compounds in ripe fruit: case studies with capsaicin and emodin by Levey, D. J, Tewksbury, J. J, Izhaki, I, Tsahar, E, Haak, D. C

“…This chapter synthesizes ongoing and past work on two prominent secondary metabolites in ripe fruits, emodin and capsaicinoids, to illustrate the importance of…”
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