Effects of heavy metal pollution on population dynamics of another important pollinator insect group: Horseflies (Diptera: Tabanidae)

Yıl 2024, Cilt: 17 Sayı: 2, 148 - 155, 15.08.2024

Bahriye Ayaz , Ferhat Altunsoy

https://doi.org/10.46309/biodicon.2024.1353718

Öz

Horseflies represent important agents of pollination as well as other pollinator insects, like butterflies, bees and wasps. Horseflies belong to the genera Atylotus, Dasyramphis, Glaucops, Pangonius, Philoliche, Chrysops, Hybomitra, and Tabanus species are exclusive nectar feeders. Glucose, fructose and sucrose are major components of plant nectars which are used nourishing for developing eggs. Because of these features horseflies have a significant role in pollination of phanerogams. This study was conducted to investigate the effects of toxic heavy metals on the population dynamics of horsefly species. Monthly changes on the accumulation of heavy metals in the larval habitats of horsefly species were determined with Perkin Elmer Optical Spectrophotometer and also correlations between concentrations of heavy metals and population fluctuations of horse fly species were observed. The results demonstrated that lead, iron and cadmium have statistically important negative effects on the population dynamics of horsefly species.

Anahtar Kelimeler

Diptera, heavy metal pollution, horseflies, population dynamics, Tabanidae

Ağır metal kirliliğinin bir diğer önemli polinatör böcek grubu üzerindeki etkileri: Atsinekleri (Diptera: Tabanidae)

Öz

Atsinekleri, arılar ve kelebekler gibi diğer polinatör böcekler kadar önemli polenizasyon ajanları arasındadır. Atylotus, Dasyramphis, Glaucops, Pangonius, Philoliche, Chrysops, Hybomitra ve Tabanus cinslerine ait at sineği türleri özel olarak nektarla beslenirler. Glukoz, fruktoz ve sakkaroz, bitki nektarlarının başlıca bileşenleridir ve gelişmekte olan yumurtaların beslenmesinde kullanılırlar. Bu özellikleri nedeniyle at sinekleri fanerogamların tozlaşması için önemli bir role sahiptirler. Bu çalışma, toksik ağır metallerin at sineği türlerinin populasyon dinamiği üzerindeki etkilerini araştırmak amacıyla yürütülmüştür. At sineği türlerinin larval yaşam alanlarında aylık ağırlık artışındaki değişimler, Perkin Elmer Optik Spektrofotometre kullanılarak belirlenmiş ve aynı zamanda ağır metal konsantrasyonları ile at sineği türlerinin populasyon dinamikleri arasındaki ilişkiler gözlemlenmiştir. Sonuçlar, kurşunun, demirin ve kadmiyumun at sineklerinin populasyon dinamiği üzerinde istatistiksel olarak önemli negatif etkilere sahip olduğunu göstermiştir.

Anahtar Kelimeler

Diptera, ağır metal kirliliği, At sinekleri, popülasyon dinamiği, Tabanidae

Kaynakça

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