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AFEC-X 2013’s Fern Project Presented at BCT 8th on 2 April 2014

April 20th, 2014 Comments off

Habitat and canopy light environment determines the diversity, abundance and distribution of ground ferns

Yang Fengchun's presentation

Yang Fengchun presenting his group’s work

“The Program for Field Studies in Tropical Asia, XTBG” is proud to announce that the independent project “Habitat and canopy light environment determines the diversity, abundance and distribution of ground ferns“, done by five students Yang Fengchun, Chaya Sarathchandra, Liu Qi, Wang Xuebing, Kim Songho during the Advanced Fieldcourse in Ecology and Conservation 2013, was presented in 8th Botanical garden Conference of Thailand (BCT 8th). The BCT 8th was held in Chiang Mai University, Thailand, from 2-4 April 2014. More than 200 people from most of the universities, research institutes, and botanical gardens in Thailand attended this conference, and 48 oral presentations and 110 posters were presented during the conference.

Here is the abstract of the work:

How co-occurring and closely related species that grow in high densities partition their niche is an important question in tropical ecology. In this study, we used 2.5 * 1 m plots placed at 10 m intervals to compare the diversity and abundance of all ground ferns in three habitat types –tropical rain forest, karst forest and rubber plantations. The canopy light partitioning and photosynthetic physiology was investigated for three Tectaria species, T. triphylla, T. simonsii and T. decurrens. We found that the diversity and abundance of ground ferns was highest in the rainforest (2.52±1.68 species and 3.29±0.04 individuals per plot respectively; P<0.0001) and there was no difference between the karst forest (2.47±0.68 and 2.94±0.05) and rubber plantation habitats (1.47±0.72 and 2.39±0.09) for diversity and abundance. T. decurrens was restricted to the rain forest habitat while the other two species were found in all three habitat types. Further, the probability of finding T. decurrens steeply decreased with increasing canopy openness and approached zero around 5% canopy openness. The other two species differed in their probability of occurrence along the canopy openness gradient from T. decurrens (P < 0.0001) and approached zero only after 20% canopy openness. The maximum photosynthetic and the carboxylase for the three Tectaria species was similar (5.96±2.60 umol m-2 s-1 and 10.02±2.76 respectively). Although habitat and low-light environment from canopy cover is an important factor that determines the distribution of ground ferns, other factors such as soil moisture and nutrients should be further investigated to fully explain how the species partition this restricted light niche. With the conversion of tropical rainforest to rubber plantations rainforest restricted species such as T. decurrens may become endangered or even locally extinct and steps should be taken to conserve these species.

PPT of the presentation and more publications of PFS office be downloaded from https://www.pfs-tropasia.org/publications/

PFS’s 7th paper “Shifting Baselines on a Tropical Forest Frontier…” published in PLOS ONE

January 28th, 2014 Comments off

Shifting Baselines on a Tropical Forest Frontier: Extirpations Drive Declines in Local Ecological Knowledge

Zhang Kai, Teoh Shu Woan, Li Jie, Eben Goodale, Kaoru Kitajima, Robert Bagchi, Rhett D. Harrison

“The Advanced Field Course for Ecology and Conservation is proud to announce the publication of research in PLOS ONE by three students from the 2012 course. Zhang Kai, Teoh Shu Woan and Li Jie conducted a project on the indigenous names of animals near the Bulong Reserve in western Xishuangbanna, where the field component of the course was held. Lie Jie, who works for the Xishuangbanna Nature Reserves, is native to the township of Mengsong, and helped the team talk to the people in Akha language. The team was interested in trends in the local knowledge about animals, and they used earlier research by Zhang Kai to prepare pictures of common, rare or extirpated (locally extinct) birds and mammals to the local people. They found that the abundance of animals was the largest determinant of whether people could assign a name: very few people were able to name rare or extirpated animals (except for some large mammals, known about through TV). In addition, older people were better able to assign specific names to animals, equivalent to giving both a genus and species name in Akha. The research underscores that the extirpation of animals, whether driven by habitat loss, fragmentation or hunting, will result in the loss of cultural knowledge about animals. This loss of knowledge potentially produces a vicious cycle, because cultural knowledge about animals can be helpful in building support in the community for conservation. The students’ research, entitled “Shifting baselines on a tropical forest frontier: extirpations drive declines in local ecological knowledge”, was published January 21, 2014 in PLOS ONE.

PLoS ONE is an open access journal, thus the full paper can be freely downloaded from http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0086598

More publications of PFS office see https://www.pfs-tropasia.org/publications/

Categories: Development Notes

Login Issues? Clear your cookies

August 5th, 2010 Comments off

If you are experiencing difficulty logging in and out, please try to clear your browser’s cookies. We are changing the way we handle user logins.

To clear your cookies:

(from http://www.wikihow.com/Clear-Your-Browser%27s-Cookies )

Internet Explorer 6
1. Once your browser is open, select the Tools menu and click Internet Options and select the General tab.
2. To delete all cookies, in the Temporary Internet Files section, click Delete Cookies and press OK.
3. If you wish to delete only specific cookies and keep others, instead of Step 2:
1. Click the Settings button, then click View Files.
2. Scroll through the list and select the cookies you want to delete.
3. Multiple cookies can be selected by holding down the CTRL key while clicking.
4. Press the Delete key.
5. Press OK on any dialog boxes that appear.
Internet Explorer 7
1. Once your browser is open, select the Tools menu and click Internet Options and select the General tab.
2. To delete all cookies, in the Browsing History section, click Delete….
3. Then click Delete cookies….
4. Click Yes.
5. If you wish to delete only specific cookies and keep others, instead of Step 2:
1. Click the Settings button, then click View Files.
2. Scroll through the list and select the cookies you want to delete.
3. Multiple cookies can be selected by holding down the CTRL key while clicking.
4. Press the Delete key.
5. Press OK on any dialog boxes that appear.
Internet Explorer 8
1. Once your browser is open, select the Tools menu and click Internet Options and select the General tab.
2. To delete all cookies, in the Browsing History section, click Delete….
3. Uncheck the top Preserve Favorite Website Data box.
4. Then check the box next to Cookies…. Check the other boxes at your own discretion.
5. Click Delete.
6. If you wish to delete only specific cookies and keep others, instead of Step 2:
1. Click the Settings button, then click View Files.
2. Scroll through the list and select the cookies you want to delete.
3. Multiple cookies can be selected by holding down the CTRL key while clicking.
4. Press the Delete key.
5. Press OK on any dialog boxes that appear.
Or
1. Hit Ctrl+Shift+Delete.
2. Click Delete.
Firefox 3.0
1. Once your browser is open, select the Tools menu and click Options… and select the Privacy tab.
2. Click the Show Cookies… button.
3. To delete all cookies click the Remove All Cookies button.
4. To delete specific cookies, click View Cookies and look through the list of the sites you wish to delete the cookies for, and press Remove Cookies. You can even expand each site to delete specific cookies from each site.
Firefox 3.5 & 3.6
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2. Select a timeframe from the Time Range to Clear dropdown menu. It is generally best to select Everything.
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4. Click Clear Now.
5. To delete specific cookies, you will need to go to the Tools menu and click Page Info, then click the Security tab. Click View Cookies and look through the list of the sites you wish to delete the cookies for (you may have to remove the text in the Search field for this), and press Remove Cookies. You can even expand each site to delete specific cookies from each site.
Opera
1. Once your browser is open, select the Tools menu and click Delete Private Data and click the Details button.
2. If you wish to keep things such as history, saved passwords, cache, etc., uncheck those items and click Delete. You may get a dialog that says “Active transfer has not been removed.” if you are currently downloading a file.
3. If you want to only delete certain cookies, click Tools and hover Advanced and click Cookies. From this screen, you can search for and select cookies to be deleted. To do so, select the select the site or the individual cookie and click Delete.
Konqueror
1. Once your browser is open, select the Settings menu and click Configure Konqueror.
2. Scroll down and select Cookies.
3. Click the Management tab.
4. Select the cookies you wish to delete and click Delete, or click Delete All to delete all cookies.
Google Chrome
1. Once your browser is open, press Control + Shift + Delete.
2. Ensure that delete cookies is selected.
3. Click clear browsing data. Alternatively you can click the spanner icon in the top left, select clear browsing data and repeat steps 2 and 3.
Mac Users, click Chrome in the top menu and choose Clear Browsing Data… Then check the Delete cookies and other site data Then press the Clear browsing data
Safari
1. Go to the menu labeled “Safari”
2. Select the sub-menu “Preferences …”
3. Select the “Show Cookies” button
4. Select all the remaining cookies showing in the window and click “Remove All”

System Updates – New Features!

August 5th, 2010 Comments off

Greetings Participants and Guests,

We are excited to be adding new features to the site this week – including a new Alumni section where students and faculty can remain connected long after the courses are finished.

We hope to make the additions as painless as possible – but the site may be down from time-to-time.  Please be patient, we think you will be excited by the developments.

-The PFS-TropAsia.org Development Team

New Features: Status Page

June 14th, 2010 4 comments

We have just rolled out new features on PFS-TropAsia.org!

Now users have the ability to check their status, and update their applications (while registration is still open)

Check out: https://www.pfs-tropasia.org/my-account/status/

Currently we are working hard to update the status of each applicant, so check back later if your information is still empty.

Thanks!

Your PFS-TropAsia.org Team

Maintenance

June 14th, 2010 Comments off

We will be performing maintenance on the site very soon (within the hour) to add additional features and enhancements.

-The PFS-TropAsia.org Team