Post-fire dynamics of Cistus spp. in a Pinus brutia forest
Yıl: 2005 Cilt: 29 Sayı: 5 Sayfa Aralığı: 337 - 343 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022
Post-fire dynamics of Cistus spp. in a Pinus brutia forest
Öz: Cistus salviifolius I. ve C. creticus L.'un populasyon dinamikleri, Marmaris Milli Parkı'nda Pinus brutia Ten. ormanlarında bir yangın sonrası süksesyonal gradiyent boyunca araştırılmıştır. Cistus spp. populasyon yoğunluğu yangından sonra birinci yılın sonunda 16 birey m"2 iken, yangın sonrası ikinci yıldan ileri süksesyonal evrelere kadar üssel olarak azalmıştır (r2 = 0,926, P < 0,001). Yangın sonrası birinci yılın sonunda Cistus spp.'un örtme derecesi %26 iken, yangın sonrası ikinci yılda yaklaşık %38'e kadar artmış ve daha sonra doğrusal olarak azalmıştır (r2 = 0,872, P < 0,01). Cistus spp.'un alana yerleşme oranının yangın sonrası ilk yılda yüksek, takip eden yıllarda ise düşük olduğu görülmüştür. Yangın sonrası ikinci yılda birçok Cistus bitkisi çiçeklenmiştir. Yangın sonrası altıncı yılda, yeni ortaya çıkan Cistus fidelerinin yoğunluğu ile Pinus brutia ağaçlarının örtme derecesi arasında önemli bir pozitif ilişki gözlenmiştir (r2 = 0,242, P = 0,002). Cistus spp.'un tohumlarının bir kısmının tohum kapsüllerinden beslenen Bruchid böcekler tarafından predasyona uğradığı saptanmıştır. Her iki Cistus türü de alana yerleşme zamanları ve yangın sonrası populasyon dinamiklerine göre kolonici tür özelliği göstermektedirler. C. salviifolius ve C. creticus fidelerinin yoğunluğunun azalmasında rol oynayan en önemli etmenler arasında genç fidelerin yaz kuraklığından kaynaklanan mortalitesi ile diğer fideler ve P. brutia ağaçlarıyla aralarındaki rekabet sayılabilir. Araştırılan türlerin, diğer Akdeniz civarı ülkelerde olduğu gibi, Türkiye'deki P. brutia ormanlarında da yangına bağımlı yerleşme davranışına sahip oldukları ve populasyonlarındaki artışın müdahale sonrası erken dönemle kısıtlı olduğu sonucuna varılmıştır.
Anahtar Kelime: Konular:
Bir Pinus brutia ormanında yangın sonrası Cistus spp. dinamikleri
Öz: The population dynamics of 2 species of Cistus L. (C. salviifolius L. and C. creticus L.) were studied along a post-fire successional gradient in Pinus brutia Ten. forests in Marmaris National Park, Turkey. The population density of Cistus spp. was 16 individual m-2 at the end of the first year after fire and then decreased exponentially (r2 = 0.926, P < 0.001) the second year after fire to later successional stages. Total projected foliage cover of Cistus spp. was 26% by the end of the first year after fire, it increased to approximately 38% during the second year after fire and decreased linearly (r2 = 0.872, P < 0.01) beyond this time. Rates of establishment of Cistus spp. were high in the first year after fire but were low in subsequent years and most of the Cistus plants flowered during the second year after fire. There was a significant positive relationship between the density of new seedlings of Cistus and cover of Pinus brutia trees in the sixth year after fire (r2 = 0.242, P = 0.002). Seed yield of Cistus was reduced due to predation of seed capsules by Bruchid insects. Both species of Cistus were shown to be typical post-fire colonisers in terms of timing of recruitment and post-fire population dynamics. The major factors responsible for the decrease in density of seedlings of C. salviifolius and C. creticus are likely to be the mortality of young seedlings due to summer drought and competition among seedlings and with P. brutia trees. It is suggested here that the species considered have fire-dependent establishment behaviour and an increase in population is restricted to early post-disturbance in P. brutia forests in Turkey, as in other Mediterranean regions.
Anahtar Kelime: Konular:
Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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| APA | Tavşanoğlu Ç, GÜRKAN B (2005). Post-fire dynamics of Cistus spp. in a Pinus brutia forest. , 337 - 343. |
| Chicago | Tavşanoğlu Çağatay,GÜRKAN Behzat Post-fire dynamics of Cistus spp. in a Pinus brutia forest. (2005): 337 - 343. |
| MLA | Tavşanoğlu Çağatay,GÜRKAN Behzat Post-fire dynamics of Cistus spp. in a Pinus brutia forest. , 2005, ss.337 - 343. |
| AMA | Tavşanoğlu Ç,GÜRKAN B Post-fire dynamics of Cistus spp. in a Pinus brutia forest. . 2005; 337 - 343. |
| Vancouver | Tavşanoğlu Ç,GÜRKAN B Post-fire dynamics of Cistus spp. in a Pinus brutia forest. . 2005; 337 - 343. |
| IEEE | Tavşanoğlu Ç,GÜRKAN B "Post-fire dynamics of Cistus spp. in a Pinus brutia forest." , ss.337 - 343, 2005. |
| ISNAD | Tavşanoğlu, Çağatay - GÜRKAN, Behzat. "Post-fire dynamics of Cistus spp. in a Pinus brutia forest". (2005), 337-343. |
| APA | Tavşanoğlu Ç, GÜRKAN B (2005). Post-fire dynamics of Cistus spp. in a Pinus brutia forest. Turkish Journal of Botany, 29(5), 337 - 343. |
| Chicago | Tavşanoğlu Çağatay,GÜRKAN Behzat Post-fire dynamics of Cistus spp. in a Pinus brutia forest. Turkish Journal of Botany 29, no.5 (2005): 337 - 343. |
| MLA | Tavşanoğlu Çağatay,GÜRKAN Behzat Post-fire dynamics of Cistus spp. in a Pinus brutia forest. Turkish Journal of Botany, vol.29, no.5, 2005, ss.337 - 343. |
| AMA | Tavşanoğlu Ç,GÜRKAN B Post-fire dynamics of Cistus spp. in a Pinus brutia forest. Turkish Journal of Botany. 2005; 29(5): 337 - 343. |
| Vancouver | Tavşanoğlu Ç,GÜRKAN B Post-fire dynamics of Cistus spp. in a Pinus brutia forest. Turkish Journal of Botany. 2005; 29(5): 337 - 343. |
| IEEE | Tavşanoğlu Ç,GÜRKAN B "Post-fire dynamics of Cistus spp. in a Pinus brutia forest." Turkish Journal of Botany, 29, ss.337 - 343, 2005. |
| ISNAD | Tavşanoğlu, Çağatay - GÜRKAN, Behzat. "Post-fire dynamics of Cistus spp. in a Pinus brutia forest". Turkish Journal of Botany 29/5 (2005), 337-343. |
