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Oak apple galls
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Oak apple galls
Galls growing on the tips of two oak twigs
Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries
Media ID 8581341
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10709867
Arthropod Arthropoda Damage Eudicot Eurosid Fabidae Fagaceae Fagales Hexapod Hexapoda Hymenoptera Insecta Angiospermae Cynipidae Dicot Dicotyledon Gall Wasp Invertebrata Magnoliophyta
EDITORS COMMENTS
1. Title: "Oak Apple Galls: A Fascinating Symbiosis of Oak Trees and Gall Wasps". This image showcases a pair of oak twigs (Quercus spp., Fagaceae, Angiosperms, Eudicots, Eurosids) bearing oak apple galls (Galls), a unique and intriguing phenomenon in the natural world. These galls are not signs of damage or disease but rather the result of a complex symbiotic relationship between the oak tree and the gall wasp (Cynipidae, Hymenopterans, Insects, Hexapods). The oak apple gall is formed when a female gall wasp lays her eggs inside the developing oak leaf bud. The tree responds by producing an abnormal growth around the egg, providing a protective casing for the developing larvae. This growth process is triggered by the wasp's saliva, which contains chemicals that stimulate cell division within the tree. The gall wasp larvae feed on the nutrient-rich tissue inside the gall, eventually pupating and emerging as adults. Once the adult wasps have left the galls, they serve as a food source for various birds and other insects. The formation of oak apple galls is an excellent example of co-evolution between plants and insects. The oak tree benefits from this relationship by providing shelter and food for the gall wasps, while the wasps ensure the continued growth and reproduction of the oak tree. This image highlights the intricate interplay between different organisms in the natural world and the fascinating adaptations that have evolved to ensure their survival. The oak apple gall is a testament to the beauty and complexity of the natural world and the intriguing relationships that exist between different species. This print is a beautiful addition to any botanical, zoological, or educational collection, providing a glimpse into the intriguing world of oak apple galls and the fascinating symbiosis between oak trees and gall wasps.
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