Kalanit – November 2014

Kalanit
Israel Plant Magazine
November 2014


 

Professional-macroscopic photography of wild plants, as a means for research and identification

Oz Golan, The Center for Materials Engineering and Processes, Afeka College for Engineering in Tel-Aviv. golanoz.me@gmail.com

Keywords: macroscopic  characterization, microscopic characterization, microscopy, professional photography

The macroscopic characterization of plants is an important botanical  auxiliary tool for becoming familiar with the biology of the plant on the one hand, and as a means for identification and definition on the other hand. The wonderful world of flowers is revealed, with its abundance of micro-structures, shades and forms, and assists us, from the scientific vantage point, to better understand the reproduction mechanisms in the flower.

Full Hebrew version


The effect of nature conservation management on the flowering of the Wild Peony (Paeonia mascula) in the Mount Meron Nature Reserve

Gidi Ne’eman,  Department of Biology and environment, University of Haifa-Oranim, Rivon, Israel. gneeman@gmail.com

Keywords: conservation,  active management, passive management, Mediterranean maquis, succession, endangered species, flag species

The Mount Meron Nature Reserve is the largest Mediterranean reserve in Israel. Since its creation, goat grazing and the felling of trees have been prohibited,  and a dense oak maquis has developed by succession. The succession of vegetation poses the risk of losing species. The Wild Peony (Paeonia mascula) is an endangered species in Israel, with a small population in the Mount Meron Nature Reserve, with only 5% of the plants flowering. We sought  methods of increasing the flowering percentage  in order to secure the future of its population. We found that flowering Wild Peonies grew mainly in locations with around 47% direct sun radiation, while most plants grew under heavy shade with only 27% direct radiation. The creation of small gaps increased flowering to 15–20%. To ensure the future of the Peonies in the Mount Meron Nature Reserve, small gaps must be created, even if this clashes with broader current management policies.

Full Hebrew version


Archeological finds prove that Wheat Rust can spread in crops at the rate of an epidemic

Mordechai Kislev, Department of Archeological Botany, Bar-Ilan University. mordechai.kislev@biu.ac.il

A new discovery by a researcher from Bar-Ilan University emerges from archeological finds, and proves that Wheat Rust, which spreads in crops, can develop at the speed of an epidemic. The difficult and catastrophic phenomenon of the rapid spread of the disease can lead to the loss of a crop within a season.

Full Hebrew version


The transition belt of Jerusalem, Binyamin and Judea

Avi Shmida, the Department of Evolution, Systematics and Behavior, and the Federmann Center for the Study of Rationality at the Hebrew University in Jerusalem, Givat Ram.  avi.shmida@gmail.com
Mimi Ron, Erga Aloni, Gadi Pollak participated in the preparation of the text.

 Keywords:  Israeli plant, Kalanit study tour, phenology

The Kalanit study tour on 27 November, 2014 focused on the transition belt of Jerusalem, Binyamin and Judea, following an early, rainy winter system, but a poor flowering season. The plants that were conspicuous in their flowers during the study tour were Tuvia's Autumn Crocus (Colchicum tuviae) in Mishor Edumim, Lac Sumach  (Rhus tripartita) in Ein Mabua, and Large Sternbergia (Sterbergia clusiana) in Ma'ale Rehav'am.

Full Hebrew version


A trip to the Hula Valley in the early 1930s

Uri Rosenberg, agron@netvision.net.il

Keywords: wetland, window to the past, plant uses

Which plants used to grow in the Hula Lake and the Hula Swamp in the 1930s, around 20 years before it was drained? what were the names of these plants at the time, and how can we identify them today? How did the local inhabitants of the Hula Valley use the wild swamp plants? And what did the members of a mission, which toured the Hula Valley, think of the draining?

Full Hebrew version