Rachel Armoza-Zvuloni Ph.D
Hydrology & Eco Hydrology
My work centers around the effect of climatic conditions (especially changes in precipitation and flash floods) on the state of ecosystems in the hyper-arid desert. I study the spatio-temporal distribution of rain and flash floods in extreme conditions. In addition, I study the effects of geo-morphological conditions and anthropogenic disturbances on the spatial distribution of acacia trees.
Main Research Areas:
- Monitoring rainfall and flash flood events in the Arava Valley and southern Negev desert and examining the ecosystem’s health according to the availability of precipitation and floods.
- Examining the hydrological water balance of three ephemeral channels (Wadi Shita, Wadi Nehushtan and Wadi Yael). Measuring the spatio-temporal extent and intensity of rainfall and measuring the effectiveness of rain and flow during flood events.
- Examining the distribution of acacia trees in the Wadi Shita drainage basin and studying the effect of different geomorphological conditions on tree density.
- Examining how changes in water flow due to anthropogenic disturbances affect acacia populations: Wadi Yael and Wadi Raham as study cases.
- Documenting past floods, sedimentary sequences and erosion volume in the Timna Valley. Examining the accumulation pattern of alluvium that was deposited in the Nechushtan River basin following the stream damming in the 1960s
- Armoza-Zvuloni R, Schneider A, Shaked Y (2016) Rapid hydrogen peroxide release during coral-bacteria interactions. Frontiers in Marine Science, 3, 124. doi:10.3389/fmars.2016.00124.
- Armoza-Zvuloni R, Schneider A, Sher D, Shaked Y (2016). Rapid hydrogen peroxide release from the coral Stylophora pistillata during feeding and in response to chemical and physical stimuli. Scientific Reports, 6, 21000. http://doi.org/10.1038/srep21000.
- Armoza-Zvuloni R and Shaked Y (2014)Release of hydrogen peroxide and antioxidant by the coral Stylophora pistillata to its external milieu. Biogeosciences, 11, 4587-4598, doi:10.5194/bg-11-4587-2014.
- Armoza-Zvuloni R, Kramarsky-Winter E, Loya Y, Schlesinger A, Rosenfeld H (2014) Trioecy, a unique sexual system in the sea anemone Aiptasia diaphana and its association with sex steroids. Biology of Reproduction, 90, 1–8. doi 10.1095/biolreprod.113.114116.
- Shaked Y and Armoza-Zvuloni R (2013) Dynamics of hydrogen peroxide in a coral reef: Sources and sinks. Journal of Geophysical Research: Biogeosciences, 118, 1793–1801. doi:10.1002/2013JG002483.
- Zvuloni A, Armoza-Zvuloni R, Shaked Y (2011) Feeding activity by the blenny Exallias brevis causes multifocal bleaching in corals: Reply to Carlson (2012). Marine Ecology Progress Series, 463, 301–303.
- Armoza-Zvuloni R, Kramarsky-Winter E, Rosenfeld H, Shore LS, Segal R, Sharon D, Loya Y (2012) Reproductive characteristics and steroid levels in the scleractinian coral Oculina patagonica inhabiting contaminated sites along the Israeli Mediterranean coast. Marine Pollution Bulletin, 64,1556–1563.
- Zvuloni A, Armoza-Zvuloni R, Shaked Y (2011) Multifocal bleaching of Millepora dichotoma in the Gulf of Aqaba (Eilat), Red Sea. Marine Ecology Progress Series, 441, 25–32.
- Armoza-Zvuloni R, Segal R, Kramarsky-Winter E, Loya Y (2011) Repeated bleaching events may result in high tolerance and notable gametogenesis in stony corals: the Oculina patagonica case study. Marine Ecology Progress Series, 426, 149–159.
- Schlesinger A, Kramarsky-Winter E, Rosenfeld H, Armoza-Zvuloni R, Loya Y (2010) Sexual plasticity and self-fertilization in the sea anemone Aiptasia diaphana. PLoS ONE, 5(7): e11874. doi:10.1371/journal.pone.0011874.
- Zvuloni A, Armoza-Zvuloni R, Loya Y. (2008) Structural deformation of branching corals associated with the vermetid gastropod Dendropoma maxima. Marine Ecology Progress Series, 363, 103–108.