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Yoav Wiesel (June 27, 1931 - February 24, 2010) was an Israeli botanist, professor and researcher of the ecology and physiology of plants. His academic studies did at the Hebrew University of Jerusalem and his activities as an independent researcher at Tel Aviv University.

biography
Yoav Wiesel was born in Tel Aviv in the summer of 1931, without her and Maryhu Wiesel. His studies began at the People's School at Ramat Gan and then continued in the "Hercelia" in Tel Aviv. In 1946, the family moved to Jerusalem, where he studied the Hebrew Gymnasia throughout. With the outbreak of the War of Liberation, he was mobilised as a member of the Defence, and was circulated in the combat department of the Gdan (to the days of the "Emirm Brigade"). In May 1948, when the Arab Legion room for Jerusalem took part in this department of Gandallahs in a line between the house of Israel and the gate that you are. After that, the department was transferred to maintain the front line in front of the wall between Rach Jaffa and the monastery of "blood neutral". Two of his close friends fell in those battles. In the summer of 1949, with the cease-fire, he moved to the 80 camp, where the PLO was established, in which he was a member, the first department of the IDF. On November 2, 1949, the spectators' training increased to Tel al-Qarer, from the shores of the Jordan Valley, and established the settlement of Tel Harvest.

In the late 1950s, Yoav left the kibbutz to study in Jerusalem. At first, he learned in the Hebrew Teacher School in the house of the vineyard. By the end of 1951, Yoav began studying biology at the Hebrew University of Jerusalem. In this framework, he focused, under the guidance of Prof. Michael Zori, in the study of the anthropology of plants and the study of the growth of the Land of Israel. His accredited work in the field of biology and soil science (1956) dealt with the study of the pelvic trees in the Western Negev, which has returned many years later. The doctoral work of the 1960s, under the guidance of Prof. Michael Zory and the knowledge of Ordin, a deal on the topic of faunas in Israel. He then went to post-doctoral studies at the University of Hanronigan, the University of Missouri, the University of California in Davis and the University of Lund. In 1962, Wiesel joined the staff of the Department of Botany at Tel Aviv University, which was then in the beginning of its way and operated until the day of his death.

As part of his academic activity, he published eleven books and books in Hebrew, seven books in English, about 70 articles in Hebrew and about 270 articles in the professional literature in English.

Study of ecology
Wiesel founded the Tel Aviv University the "generation of ecology" in which he dealt with his students in the study of environmental physiological ecology of the Land of Israel plants. A central theme that dealt with was plant resistance to the memoths and ecology of salt plants. In 1972, his book was published on the biology of Halophytes by Academic Press in New York. It was the first book in the scientific literature that encompassed the subject and gave it a status of a global expert in this field. At the same time, for the continued publications of science in the world’s professional literature, he saw special importance in Hebrew publications for the students and plant enthusiasts. In 1975, he published his book The ecology of Principles and Processes, which was the first book to introduce the science of modern ecology, which was at the beginning of the revolution that brought the subject to the center of global discourse. This book has been used for many years as a fundamental textbook in schools and universities in the country. He also published a series of books on special plant groups, “Ber Sea Plants in Israel,” “Water Plants in Israel,” “Water Plants in Israel,” “Move Plants in Israel” and “Drug Plants in Israel” to promote plant recognition among the wider audience. He edited Volume 8 of the Land of Israel in the Encyclopedia of the Land of Israel, issued by the Ministry of Defense.

A special field that dealt with Wiesel was exploring the past climate of the Middle East based on the analysis of the nature of ancient trees. The field of scientific