Lilium candidum L. (Ak zambak) Türünün İzmir İli Popülasyonları ve Tür Koruma Stratejileri
Lilium cinsi (Zambak) dünya genelinde yaklaşık 100 kadar türle temsil edilmektedir. Cins genel olarak Kuzey yarıkürenin soğuk ve ılıman bölgelerinde yayılış göstermektedir. Lilium cinsine ait bir çok tür kültüre alınmıştır. Zambaklar özellikle hoş kokusu ve güzel görüntüsü ile ön plana çıkmaktadır. Lilium Türkiye genelinde 8 takson ile temsil edilmektedir. Bu taksonların ikisi endemik olup, endemizim oranı %25’dir. Lilium candidum türü (Ak zambak) ilk kez Carl von Linné tarafından tanımlanmıştır. Ancak türün ilk kayıtları bundan çok daha uzun yıllar önce Dioscorides’in “De Materia Medica” isimli eserinde çizim olarak karşımıza çıkmaktadır. Bu çalışma kapsamında Lilium candidum’ un İzmir ili sınırları içerisinde yayılışının boyutları, doğal popülasyonlarının varlığının teyidi, türün gelişiminde ve yayılışında olumsuz etkileri olan “sınırlayıcı faktörler” ile popülasyonlarını ve habitatlarını tehdit eden (biyotik ve abiyotik) faktörlerin ortaya konulması, türün popülasyon özellikleri, habitat istekleri, ergin birey sayıları, popülasyon yayılış sınırları, çoğalma ve hayatta kalma stratejileri ve birlikte yaşadıkları bitki türleriyle olan ilişkilerinin incelemesini ön plandadır. Bununla beraber İzmir ili L. candidum popülasyonlarına in-situ ve ex-situ koruma ve üretim stratejileri geliştirilmesine yönelik öneriler de bu çalışma kapsamında ele alınmıştır. Ayrıca türün betimi genişletilmiştir ve IUCN kategorisi yeniden değerlendirilmiştir.
Populations of Lilium candidum L. (Madonna lily) in Izmir Province and Species Conservation Strategies
Genus Lilium (Lily) is represented by approximately 100 species worldwide. The genus is generally distributed in the cold and temperate regions of the Northern Hemisphere. Most species of Lilium have been cultivated. These species stand out with their particularly pleasant scent and beautiful appearance. It is represented by 8 taxa in Türkiye. Two of these taxa are endemic, and the endemism ratio is 25%. Lilium candidum (Madonna Lily) was first described by Carl von Linne. However, the first records of the species appear many years ago as drawings in Dioscorides’ work De Materia Medica. This study prioritizes within its scope to reveal the extent of the distribution of Lilium candidum within the borders of Izmir province, confirmation of the existence of its natural populations, the limiting factors negatively affects the species’ development and distribution, and the biotic and abiotic factors that threaten its populations and habitats. The study additionally examines the species’ population characteristics, habitat requirements, number of adult individuals, population distribution limits, reproduction and survival strategies, and relationships with the plant species in their habitats. The study also discusses within its scope suggestions for developing in-situ and ex-situ protection and production strategies for L. candidum populations in Izmir province. Lastly, the study expands the description of the species and reevaluates its International Union for Conservation of Nature (IUCN) category.
Genus Lilium (Lily) is represented by approximately 100 species worldwide. The genus is generally distributed in the cold and temperate regions of the Northern Hemisphere. Most species of Lilium have been cultivated. They are mostly famous for their particularly pleasant scent and beautiful appearance. It is represented by 8 taxa in Türkiye. Two of these taxa are endemic, an endemism ratio is 25%. Lilium candidum (Madonna Lily) was first described by Carl von Linne. However, the first records of the species appear many years ago as drawings in Dioscorides’ work De Materia Medica. The species was known to be distributed throughout Muğla, Aydın, and Antalya. In recent years, however, a natural population of the plant has also been found in Balıkesir province. Although some known populations occur in Mersin, İstanbul, and Mardin provinces, whether they are natural populations or cultivated forms there remains unknown. This study has found within its scope many natural populations in Izmir province. The species was listed as Near Threatened (NT) on the International Union for Conservation of Nature (IUCN) Red List in 2014 and later evaluated in 2017 as Least Concern (LC). However, the species was evaluated as Vulnerable (VU) in the IUCN’s Red Book of Turkey published in 2000, while not evaluated in the most current IUCN Red List of threatened plant species in Türkiye. Except for some small-scale studies, no comprehensive protection and action plan study on L. candidum has been found in the national or international literature. The materials of the current study consist of Lilium candidum samples collected during field studies carried out in Izmir province and its districts between 2014-2020. This study frequently encountered individual samples whose bulbs had been eaten but whose flowers had not been consumed and thus had been destroyed in their natural habitat. These plucked specimens were determined to have produced small bulbs in nodes near the base as a result of a certain waiting period. A similar situation has been observed to be used as a cultivation technique among the people who grow L. candidum in their gardens in the Karaburun district of Izmir province. The experiments this study carried observed that the flowering axes removed from the bulbs can produce bulbs from the nodes within 45-60 days, especially when kept under dark conditions. This situation is thought to be a survival strategy developed by the plant during its evolutionary process, as its juicy and fleshy bulbs were frequently damaged by their natural predators. This study presents the dimensions of the spread of Lilium candidum within the borders of Izmir province, the limiting factors that negatively affect the species’ development and spread, and the population characteristics of L. candidum, as well as its habitat demands, adult numbers, population distribution limits, and reproduction and survival strategies. This study has conducted comprehensive research on the populations of the L. candidum species in İzmir province, and the results from the field studies show the population size to have increased to 17. The study also discusses within its scope suggestions for developing in-situ and ex-situ protection and agriculture strategies for L. candidum populations in Izmir. The study additionally has expanded the description of the species and reevaluated its IUCN categorization there. As a result of all this research, a large number of new populations of the species have been found, and due to reasons such as the high attractiveness of the species and the intense overlap of locations with human activities, the study has made plans to urgently implement strategies related to conservation studies and forwarded these to the authorized institutions. This study has also obtained new and comprehensive information about the systematics, ecology, and reproduction of the L. candidum species and proposed a primary habitat conservation approach based on this information regarding the conservation studies on the species. In addition, this article suggests conducting studies on protecting the species outside its natural area in botanical gardens, conservation gardens, gene conservation centers, as well as conducting studies on the agriculture production of the species using different production techniques. In light of all the obtained information, this study has learned different production techniques for Lilium candidum (Madonna Lily) and determined based on this knowledge that new productive bulbs from the nodium parts can form, especially when kept for 1.5-2 months after the bulb disassembly and collection process. This knowledge is very useful for the protection of the species and its cultivation as an ornamental plant and has been evaluated as an important method.