Leaf mining : 無料・フリー素材/写真
Leaf mining / Dallas Krentzel
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | Found in the Ecuadorian Amazon. Leaf mines are trails left within leaves after being mined by herbivorous insect larvae. The adult female lays her egg(s) within the mesophyll, giving the hatchlings access to the nutritious inner layers of the leaf, both allowing the larvae to exclusively consume the high-nutrient contents of the mesophyll rather than the cuticle walls, which often contain toxic defenses from the plant, and also protects the larvae from predators in the outside world. You'll notice that the trails start of very thin and narrow, but end up large and thick. The red coloration is likely frass, also known as bug poop.Leaf mining is not unique technique, although it's surely innovative. Many groups of insects have convergently evolved leaf mining, including flies (Diptera), moths (Lepidoptera), sawflies (Symphyta), as well as some beetles (Coleoptera) and wasps (Hymenoptera). The morphology of leaf mines is, thus a somewhat useful diagnostic character, although I've yet to determine what sort of critter made these. |
| 撮影日 | 2011-06-12 16:38:47 |
| 撮影者 | Dallas Krentzel |
| タグ | |
| 撮影地 | Tena, Napo, Ecuador 地図 |
| カメラ | DSLR-A300 , SONY |
| 露出 | 0.008 sec (1/125) |
| 開放F値 | f/6.3 |
| 焦点距離 | 80 mm |