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標題: Guidelines for taking photos for moth identifications
hkmoths
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發表於 2007-3-9 12:07  資料 文集 短消息 
Guidelines for taking photos for moth identifications

For all contributors,

1. Please try to get shots in focus, correctly exposed or slightly underexposed.

2. Crop and / or reduce / resize the dimensions of photos as necessary before posting - many people elsewhere in the virtual world will not have broadband access and rely on slow internet access. On screen, a photo need not be more than 600 pixels wide / tall.

3. Please try to include appropriate views of the moth (in whichever life cycle stage)
         * for adults this means from the side and/or above, and sometimes (especially for some micro moths) of the head
         * for larvae, generally from the side and from above

4. Please include locality and date of record. Without these data, the species can not be conserved for future generations to enjoy.

5. Once your species has been identified, please enter your record(s) on the HKMoths Yahoo database. By pooling our data, the bigger picture on the distribution and status of the species becomes apparent, this again aids the conservation of the species and their habitats.

6. Please do not harm other wildlife (e.g. plants) or the environment (e.g. pulling apart rotting branches) in order to "get a better picture".

Many thanks, and happy photographing.

Roger.

[ Last edited by  hkmoths at 2007-4-3 11:33 ]




R.C.Kendrick  Ph.D.
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daydream (Daydream)
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發表於 2007-3-9 13:43  資料 主頁 短消息 


QUOTE:
原帖由 hkmoths 於 2007-3-9 12:07 發表
1. Please try to get shots in focus, correctly exposed or slightly underexposed.

This is everytimes i tried very hard by making funny pose to do that, u know~~~

QUOTE:
5. Once your species has been identified, please enter your record(s) on the HKMoths Yahoo database. By pooling our data, the bigger picture on the distribution and status of the species becomes apparent, this again aids the conservation of the species and their habitats.

Seems need to subscribe the group first, i'm making subscription.  ~~~ OK now, subscribed.

Thanks for arrangement.

[ 本帖最後由 daydream 於 2007-3-9 13:50 編輯 ]
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littlelittle
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發表於 2007-3-9 15:12  資料 文集 短消息 
We may need more discussion on guideline #4
"Please include locality and date of record. Without these data, the species can not be conserved for future generations to enjoy."

As far as I understand, there is a "hidden" guideline in butterfly section (possibly in other sections as well) that locality of the photo record should not be disclosed in order to minimize possible disturbance to its habitat. If someone disclose the locality, section masters/administrators will delete it.

I think HK wildlife forum may need a clearer and consistent giudeline on this.

I think disclosing locality may have following justifications:
1. to form a complete record for academic use
2. to form a complete record for conservation purpose. e.g. when a particular habitat or a particular species being threatened, we can bring out all these records as support for protecting the habitat or the species. More people know the habitats, we have more power to protect them.
3. more people can share the joy of nature by watching or photographic that interesting species.

However, it is also true that disclosing the locality may sometimes cause problems:

1. people deliberately destroy the habitat when they realize the place has such species. This usually happen in private lands with good development potential or high commercial value including those already owned by large property developers and those owned by villagers.

2. Too many people rush to the location and cause damage to the habitat. As far as I know, there may only be one case which is the re-discovery of Freyeria putli in Sha Lo Wan in 2005 Oct.. So far that butterfly still exist!

3. Keen collectors use the information to collect specimens for their personal interest only.

I would disclose the localities except in the following situations:
1. the species is highly vulnerable, I can't point out any example, but birdwings, lacewings, dragontails are obviously far from that.
2. has high collection or economic value to attract collectors (e.g. stag beetles)
3. found on sensitive and vulnerable private lands.

Therefore, there would be very few cases I need to keep the locality secret.

Besides, we do not need to point out the exact locality. For examples, we can say: Wu Kau Tang, Lung Kwu Tan, Tai Po Kau, Shing Mun, near Bride's pool, Ng Tung river valley, Lam Tsuen river valley, Hok Tau, etc. If someone need more exact locality for academic or other justified purposes, we may send by PM.
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Gilbert (Gilbert)
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發表於 2007-3-9 16:59  資料 短消息 
In my opinion, i think the data of the moth location and the date of photo taking can be shown in the post.

Reason: 無人鐘意影蛾. 蝶會引起大群人既注意. 所以不應公佈. 免遭一些特別種的發現地點公佈後受到不必要的人為干預.
蛾沒有此類問題. 搵到都成問題. 因此. 大家可以在帖子公佈拍攝點及時間. 不過大家仍有權不把資料公開.

[ 本帖最後由 Gilbert 於 2007-3-9 17:01 編輯 ]
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littlelittle
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發表於 2007-3-9 23:47  資料 文集 短消息 
Members of Saturniidae, like Atlas Moth, Indian Moon Moth, even Ailanthus Silkmoth may attract more attention than many butterflies do.

The most well known local case to support not disclosing locality is the re-discovery of Freyeria putli in Sha Lo Wan in 2005 Oct.. Since then, dozens of photographers rush to the place. Days after, many plants have been trampled down. Lots of criticism appeared on the web saying that the locality of this butterfly should not have been disclosed. It is a very valid point to illustrate the bad effects of disclosing the locality of a rare species. However, very little have been mentioned about the positive side of disclosing this news: 1. Many people took the photos of this rare butterfly and have great funs. 2. Some lepidopterists found the larval food plant of this butterfly and completed the life history of this butterfly, that means we know more detail about it which can be very useful when we need to conserve it. 3. Solid evidence of the existence of this butterfly was established, one day when Sha Lo Wan is going to be developed, EIA report would certainly include them. As a whole, we gained more than we lost in this case.

Today, we all can easily take good photos of many rare butterflies because we know their locations and do not need to spend lots of time to search. Hasora vitta, Caprona alida, Ampittia virgata, Halpe paupera, Isoteinon lamprospilus, Chilasa agestor, Horaga onyx, Tajuria maculata, Pithecops corvus, Cethosia biblis... Why? Because we learn their locations and active timing from the web or other printed publications. 10 years ago, lepidopterists may spend years to look for them but only get very limited results. Bacombe (one of the most well known lepidopterists in HK) spent over 20 years on HK butterflies, he only recorded about 200 species. Today, most butterfly photographers spend only 1 -2 years to record 200 species.

At the time when we are harvesting the results of the generosity of previous generation, should we also consider to contribute ours?

We should respect everyone who do not like to disclose the locality when posting a photo record. At the same time, we should respect people disclosing the locality when posting a photo record on this forum and not to delete the information.
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dlmohn
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發表於 2007-4-18 17:07  資料 主頁 短消息 
I would also like to encourage the photographers of larvae to include a zoom-out, overall view of the foodplant they find the larva(e) munching on.  A closer view of the leaves and leaf/stem attachment could also be useful to help ID the plant.  Make a note if the plant is a tree, bush, vine, moss, fern, etc.

An alternative is to collect a small (!!!) sample of the plant (if there's plenty and you know it's not endangered--like there's plenty around) and take it to the HK Herbarium in Cheung Sha Wan for ID.  They are very helpful there and are usually pretty accurate.  Then post the findings/info on the original page.

This will also help everyone learn some botany as well!  I'm sure Mrs. K would appreciate that!  

David
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