Fireflies are a rarity in the city's night sky. In the middle of summer, in the scenic area of Nanjing Laoshan and Linggu Temple, fireflies dance, and the fantastic scene also attracts many citizens. How much do you know about fireflies?
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Photography enthusiasts: wait for one film in one hour
These beautiful photos, Mr. Wang, a photography enthusiast from Nanjing Dachang, will take his camera to crouch in the habitat of the old mountain fireflies every season, quietly waiting for the moment when they light up the night sky, and a satisfactory photo often waits at least half an hour.
Mr. Wang, a photography enthusiast in Nanjing, introduced: "Every few seconds to expose a minute, and then get a photo, exposure is about an hour or so, get dozens of photos, superimpose these dozens of photos together, you can get a piece, the number of fireflies in this piece will be more." ”
Insect Experts: Protect firefly habitats together
The fireflies that soar in the night are also important environmental indicator species, aquatic fireflies have high requirements for water quality, terrestrial fireflies have high requirements for habitat quality, and whether fireflies appear in summer can qualitatively indicate the quality of the environment.
The Laboratory of Insect Classification and Aquatic Insects in the College of Plant Protection of Nanjing Agricultural University has long been engaged in basic and applied research on biological monitoring of aquatic insect water quality and conservation of insect biodiversity. The research on firefly breeding and conservation work has been carried out for 1 and a half years, and the focus of this work is to grasp the environmental conditions of firefly breeding and conservation, find out the firefly resources in Jiangsu Province, and carry out firefly field conservation work.
Wang Beixin, director of the Department of Entomology at the College of Plant Protection of Nanjing Agricultural University, said: "The fireflies you see, basically in the soil and water, live for a year, become adults out, its adult stage is very short, the purpose of the adult stage is that male and female insects mate and lay eggs, according to our observations, its adult survival period is relatively short, only one week to two weeks." ”
In fact, fireflies are a general term for fireflies, larvae eat snails, slugs and crustaceans and other fruit and vegetable pests, and adult fireflies can only drink nectar and dew due to the degradation of the mouth organs. The way to love fireflies is "habitat protection + quiet viewing", and hunting consumption and predatory viewing will only make fireflies an endangered species.
Wang Beixin said: "Light, especially strong light, will affect the exchange of fluorescence frequencies of male and female insects, so firefly protection should avoid light pollution; the second is environmental pollution, pollutants, and do not catch at will." A female lays about 70 eggs, more, more than 800, or even thousands, so you take away a firefly female, which is equivalent to dozens of fireflies missing dozens of hundreds. ”
Wang Beixin told reporters that biodiversity conservation is related to the well-being of all mankind and is the material basis for human survival. Usually a good ecological environment, biodiversity is abundant, and species protection is better. In order to better protect the biodiversity of Jiangsu Province and find out the biodiversity of Jiangsu Province, it is understood that the Department of Ecological and Environmental Protection has launched a biodiversity background survey in 2017, and has completed the biodiversity background survey of more than 30 counties, recording more than 4600 species, including 165 rare and endangered species. More than 1,000 species of Pukou and Lishui have been recorded in Nanjing, including porpoises, Aurora jays, Chinese tiger butterflies, roe deer and other important protected species.
(Source: Jiangsu Radio and Television Rong Media News Center/Huang Di, Wang Jiaoqun, Editor/Jiang Jie)