![]() | |
|
|
What is New 12th January 2012 Genetic
monitoring for managers Genetic
monitoring is increasingly being used to understand and respond to invasive
species, habitat degradation, fragmentation, disease, or
climate-related changes. Many wildlife mangers are flummoxed by the jargon and
methodologies of genetic monitoring Many mangers have requested me to suggest a site
that might come in handy to resolve their dilemma. To aid managers and researchers with limited
genetics experience, researchers
Jeff B. Stetz, Katherine C. Kendall and
Christina D. Vojta have developed a web-based resource to help them
identify which, if any, molecular genetic methods would be
appropriate for population assessments or monitoring. 1st January 2012 Best wishes for your conservation mission during the year 2012 21st December 2011 Managing the soundscapes in wildlife reserves
What
is soundscape ecology? An introduction and overview of an emerging
new science
Bryan
C. Pijanowski, Almo
Farina, Stuart
H. Gage, Sarah
L. Dumyahn and Bernie
L. Krause
From
the issue entitled "Special Issue: Soundscape Ecology"
LANDSCAPE
ECOLOGY, Volume
26, Number 9, 1213-12328
To
read a review of the paper in my blog click HERE 10th December 2011 Here is a paper that would be of great interest to those engaged in the conservation efforts of wild goats and sheep. Translating
Effects of Inbreeding Depression on Component Vital Rates to Overall
Population Growth in Endangered Bighorn Sheep HEATHER
E. JOHNSON,L. SCOTT MILLS,JOHN D. WEHAUSEN,THOMAS R.
STEPHENSON,GORDON LUIKART Conservation Biology, Volume 25,pages 1240-1249,December 2011To read a review of the paper in my blog click HERE 4th December 2011 Here is a chance to read some excellent papers on rainforest conservation for free Till
December 31st Royal Society is offering a special
theme issue of
its Philosophical Transaction B journal on rainforest conservation
for free. The
special them issue isentitled 'The
future of Southeast Asian rainforests in a changing landscape and
climate'. Click HERE to go to the site Ist October 2011 International Year of Forests Bibliography Here is a great
opportunity to read some excellent papers As
part of a celebration of the International Year of Forests,
publishers Taylor & Francis and Routledg.have compiled a
collection of articles entitled “Celebrating
Forests for People.” The full bibliography, with links to individual articles, is available here 19th September 2011 Nilgiri tahr taxonomy - Slight change in original citation After careful perusal of old records Dr C.P Shaji and Dr P.S Easa has communicated to us that the original citation should read as "Proceedings of the general meetings for scientific business of the Zoological Society of London.1837 V: 81" instead of "Proc. Zool. Soc. Lond., 1837:81 [1838]". We have made necessary changes in the taxonomy page. We thank Dr Easa and Dr Shaji. 30th August 2011 Genes and the decline of populations It is the common belief
that lack of genetic diversity spells doom for animal populations. Here is a piece of research from Spain that bucks the trend. Research done on DNA found in fosil bones of Iberian lynx (Lynx pardinus), have shown that the Iberian lynx has had low genetic diversity, for at least 50,000 yeras. The total population of Lynx is 300 individuals in two isolated areas in Spain. The researchers say the genes need not be blamed for the decline in populations. Habitat destruction and decline of its main prey, the European rabbit are the main cause of decline. The researchers
underline the fact that what is needed is the political will to
enforce strong conservation measures. We have a lesson for
Nilgiri tahr here. The isolated populations of Nilgiri tahr have
always been a source of mystery. How they manage to survive has
baffled the scientists. The hypothesis is that occasional males from
outside do join the isolated herds once in a while. The new research
has added a new dimension to the whole conservation scenario. In the case of Nilgiri
tahr also the main villain is habitat destruction, degradation of
habitat quality and poaching. What is needed is strong conservation
measures in the field. Political will is a must if this is to take
off. Journal Reference: Ricardo
Rodríguez, Oscar Ramírez, Cristina E. Valdiosera, Nuria García,
Fernando Alda, Joan Madurell-Malapeira, Josep Marmi, Ignacio Doadrio,
Eske Willerslev, Anders Götherström, Juan Luis Arsuaga, Mark G.
Thomas, Carles Lalueza-Fox, Love Dalén. 50,000
years of genetic uniformity in the critically endangered Iberian lynx.Molecular
Ecology 3rd August 2011 Wildlife wardens of Nilgiri tahr areas - your attention please Census techniques presently followed to estimate
Nilgiri tahr populations are not fool proof. There is lot of bias.
To increase the reliability here is a methodology that you should go
in for. This methodology used by researchers KIM G. POOLE, DARRYL M.
REYNOLDS, GARTH MOWAT and DAVID PAETKAU is very useful and can be
tried in Nilgiri tahr areas. Non-invasive collection of tissue samples to obtain
DNA for microsatellite genotyping required to estimate population
size has been used for many wildlife species but it is rarely that
it has been used for ungulates. The researchers estimated mountain goat
(Oreamnos
americanus) population size on a mountain complex in southwestern
British Columbia by identification of individuals using DNA
obtained from fecal pellet and hair samples collected during 3
sampling sessions. They identified 55 individuals from 170 samples
that were successfully genotyped,and estimated a population of 77
mountain goats (SE ¼ 7.4). Mean capture probability was 0.38(SE ¼
0.037) per session. The researchers say their technique provides one of
the first statistically rigorous estimates of abundance of an
ungulate species using DNA derived primarily from fecal pellets. The
technique enables managers to obtain minimum counts or population
estimates of ungulates in areas of low sightability. It could prove
very useful for conservation and management of Nilgiri tahr. Estimating Mountain Goat Abundance Using DNA from
Fecal Pellets KIM G. POOLE, DARRYL M. REYNOLDS, GARTH MOWAT and
DAVID PAETKAU The Journal of Wildlife Management
75(6):1527–1534; 2011; DOI: 10.1002/jwmg.184 Urgent need to study the possibility of genetic bottleneck in Nilgiri tahr The
latest reports about Amur tigers (Panthera
tigris altaica),
from a team of scientists from Russia, Spain and Germany, appearing
in the latest issue of journal Mammalian Biology is really
worrying. It has resonance for Nilgiri tahr conservation also The
researchers say the Amur tigers have been reduced to an effective
population of fewer than 14 animals. Approximately 500 Amur tigers live in the
wild, but the effective population is a measure of the genetic
diversity of the Amur tiger. Genetic
bottleneck during the tigers' recent history has been
brought out by the research. Mode shift in
allele frequencies tests were positive, while the M-ratio
test was negative, indicating the likelihood of a contemporary
rather than a historical population bottleneck. This translates in to a situation where any
vulnerability to disease or rare genetic disorders is likely to be
passed on to the next generation. A more genetically diverse
population of animals has a much better chance of survival. The research highlights the fact that
detection of genetic bottleneck signatures in wildlife species is
highly relevant for conservation. 50% of the total Nilgiri tahr population is small and
fragmented. The need to study the possibility of genetic erosion is
very germane here. Let us clearly understand whether there is any
genetic bottleneck. We exhort the forest departments of Kerala and Tamil
Nadu to go in for a detailed study immediately. At stake is the
future of Nilgir tahr. Routine Closure of Eravikulam National Park It is birth season for Nilgiri tahr. To facilitate safe parturition the park will remain closed to visitors for one month. 1st January 2011 Best Wishes 2011 is the international
year of forests. The United Nations General Assembly has declared 2011 as the
International Year of Forests to raise awareness on sustainable
management, conservation and sustainable development of all types of
forests. The UNEP Convention on
Migratory Species (CMS) and The Agreement on the Conservation of
Populations of European Bats (EUROBATS) have joined together to
celebrate the Year of the Bat. Best
wishes for your conservation mission during the year 2011.
5th December 2010 Fewer
than 50 Arabian tahrs remain in the wild in the UAE. Information received from my friends from UAE reveals
that fewer than 50 Arabian tahrs remain in the wild in the UAE.
UAE's tahrs are concentrated in the mountains of Ras al Khaimah and
Fujairah. Poaching is a big problem. My friends narrate the story
of one Ali al Shehhi which was published in The
National. When Ali al Shehhi’s son got engaged, the
bride's family brought in a special delicacy to celebrate. Guess
what? Meat of Arabian tahr with rice.
National reports
that Ali al Shehhi's ancestors had hunted the tahr in the mountains
of Ras al Khaimah for generations. The light at the end of the
tunnel is that Mr al Shehhi is now penitent. He says he never knew
about the endangered status of the animal. He has vowed never to
hunt them again. This brings in to light the urgent need for
dissemination of information about Arabian tahrs and the need for
community participation in conservation. As the numbers have declined in the UAE, they are now
poached in Oman. They are sold on the black market for as much as
Dh120, 000 a pair. Omani authorities have realized the lurking
danger and have stepped up protection. The personal interest of His
Majesty Sultan Qaboos bin Said is sure to give a big boost to
their protection. Conservationists
are pinning lot of hope on Oman. 29th November 2010 Oman-Wadi
Al Sareen to get more protection My friends in Oman tells me that, Wadi Al Sareen,
45km southwest of Muscat in the Eastern Hajar Mountains, the premier
Arabian tar habitat in Oman, will get more protection with the
implementation of the new management plan. Proper demarcation which
is lacking now will be implemented. All future development works of
the area will be weighed against impact on wildlife before they get
sanction. The conservation efforts are spearheaded by the personal
interest of His Majesty Sultan Qaboos bin Said. The
other two populations of Arabian tahr are in Wadi Wurrayah in
Emirate of Fujariah and Jebel Hafit near Al Ain ,both in the United
Arab Emirates. Wadi Sareen, is the
largest of the three protected areas. 12th October 2010 Incidence of Gastro-intestinal parasites in Nilgiri tahr of Eravikulam National Park, Kerala Nithin Nandan a fourth year veterinary student of Veterinary College, Trichur has sent me information about incidence Gastro-intestinal parasites in Nilgiri tahr of Eravikulam National Park, Kerala. Nithin and his friends collected the feacal samples of Nilgiri tahr during the Nilgiri tahr census. The feacal samples were examined in the parasitology department of the college for the helminth parasites and the students noticed an incidence of 57.14% among the animals.
Nilgiritahrinfo urges the
Kerala Forest and Wildlife Department to examine the data on a war
footing and discuss it with veterinary experts. 14th August 2010 Input needed on an endangered Arabian tahr If you
are a vet and have some ideas on helping an endangered Arabian tahr
please join the discussion, the link for which is give at the
bottom. Click
here to join the discussion
27th July 2010 Keen interest shown by wildlife enthusiasts in Nilgiri tahr conservation It is heartening to see people taking a keen interest in endangered Nilgiri tahr. Vinay Nag, a wildlife enthusiast from Mysore, Karnataka, has reported sightings of two herds of Nilgiri tahr (14 and 9 respectively), from the Upper Palni region between Kukkal Village and Manjampatti Valley on 22nd July, around 1 pm to 1.30 pm. Vinay here is a big thank you for your interest and sharing your observations with us. 17th June 2010
Earthwatch
Institute research position on the Arabian tahr Earthwatch Institute is an international non-profit organisation which seeks to engage people worldwide in scientific field research. They have a Programme with the Sultanate of Oman comprising four research projects, and are currently looking for a scientist to lead the Arabian tahr research, conservation and community project, full time/to fit around current responsibilities. Prospective candidates should be a fit and competent rock climber, including free climbing, whilst carrying food and equipment (or identify appropriate alternative methods for surveying tahr), appropriate scientific/environmental doctorate, or equivalent experience, experience conducting own research, preferably at landscape level and involving ecosystems services, publication record in a relevant field, experience of leading and managing applied research and conservation programmes, including financial management, preferably international., good interpersonal and communication skills including public speaking and scientific writing, ability to be aware of local cultural norms and be prepared to fit in with local cultures and traditions, ability to work professionally with colleagues, partner organisations and donors at all levels, demonstrable personal effectiveness in setting standards, reaching solutions and completing tasks for multiple concurrent projects, act under own initiative and also work as a team player; good staff management skills. 5th June 2010
Recovery
Plan for Nilgiri tahr gets off the block A Recovery Plan for Nilgiri tahr prepared by Asia Biodiversity Conservation Trust, Trichur and Care Earth, Chennai, has been submitted to the Tamil Nadu forest department. The plan was authored by P.S Easa, Mohan Alembath, Ranjit Daniels and James Zacharias. The comprehensive plan prepared with emphasis on isolated populations, is expected to give a big boost to the conservation efforts of endangered Nilgiri tahr in Tamil Nadu and Kerala. As a run up to the plan several previously unknown, isolated small populations, of Nilgiri tahr were identified. 2nd June 2010 Arabian Tahr in Dire Straits Reports Muscat Daily Muscat
Daily reports in its issue dated 1/06/10 that poaching of endangered
Arabian Tahr is on the increase. This is happening in spite of the
stringent measures taken by Omani Government for the protection of
Arabian Tahr. Last
month Omani Environment ministry officials had, with the help of the
Omani Police, foiled an attempt by the smugglers to smuggle out of
the country an Arabian Tahr. This is the 5th incident
since May 2009. Conservationists’
are advocating increased community participation, in the conservation
efforts of Arabian Tahr, to check the menace of poaching. 24th April 2010 E.R.C.
Davidar E.R.C. Davidar who passed
away earlier this month was a pioneer in Nilgiri tahr studies. His
detailed census of Nilgiri tahr done in 1975 and published in the Journal
of the Bombay Natural History Association brought to light the
plight of these animals. We owe a lot to him for his painstakingly
done surveys. He will be remembered for a long, long time for his
contribution to Nilgiri tahr conservation. Theodore Bhaskran has
written a good piece on him in tody’s “HIndu
“. Read it here 1st
February 2010 Eravikulam
National Park Closed to Visitors for 45 Days It is
parturition time for Nilgiri tahr in Eravikulam. Frolicking kids
have started appearing. The park will now remain closed to visitors
for 45 days, to prevent any disturbance to the animals. Special
protection measures have been put in place by the park authorities. 1st
January 2010 Best
wishes 2010
is the international year of biodiversity. Best wishes for your
conservation mission during the year 2010. 15th November 2009 The conference authorities had ceaselessly worked to raise funds for bringing promising researchers from developing countries. The entire expenses were borne by the organizers. The conference is bound to give a new impetus to mountain ungulate conservation. We at the Nilgiritahrinfo are very pleased with the success of the conference and take this opportunity to pay encomium to the organizers. 27th September 2009 5th World Congress on Mountain Ungulates-Preparations on Schedule Preparations for the conference are going right on schedule. The response so far has been overwhelming. The organizing committee is working very hard to make the conference a resounding success. We at the Nilgiritahrinfo are very sure that this conference will be memorable one. Hats off to the organizing committee for their tireless efforts 15th August 2009 Tamil Nadu moots conservation action plan for Nilgiri Tahr Tamil Nadu forest department is coming out with an action plan for the conservation of endangered Nilgiri Tahr. Asia Biodiversity Conservation Trust has been entrusted with the preparation of the plan under the species recovery programme. Associate organization for the work is Care Earth, Chennai. Environmentalists all over India have welcomed the initiative shown by Tamil Nadu for the conservation of Nilgiri Tahr. 1st May 2009 Royal
Protection for Arabian Tahr United Arab Emirates has
established the Wadi Wurayah Fujairah, home to the endangered
Arabian tahr as the country's first protected mountain area. Wadi
Wurayah Fujairah is a 129 km-square catchment. His
Highness Shaikh Hamad Bin Mohammad Al Sharqi, Member of the Supreme
Council and Ruler of Fujairah, issued a decree this week that
officially establishesdthe Wadi's protected status. Apart from
Arabian tahr, presence of 11 other species of mammals, 73 species of
birds, 17 species of reptiles and amphibians, one
species of fish and 74 invertebrate families have been recorded from
the area. More than 300 species of plants have also been recorded in
the area. Under the new proposed protection plan reviewed by the
royal court, management inputs will be updated. More park rangers
will be deployed to patrol the area. A nature education scheme will
be implemented to educate visitors. Visitors will also be fined for
leaving litter behind, polluting the water and painting graffiti. We at the Nilgiritahrinfo salutes
all the people who have worked tirelessly to make this dream come
true. 10th March 2009 5th World Congress on Mountain Ungulates Online registration is now open for the 5th World Congress on Mountain Ungulates. Log on to the conference website www.vworldconferenceungulates.org for details. You can click here and go to the website7th March 2009 General Douglas Hamilton General Douglas Hamilton (8 April 1818 – 20 January1892) was a British Indian Army officer, gazetted to the 21st Regiment of the Madras Native Infantry from 1837 to 1871. He is a legend in the Tahrcountry Highranges. Marcus Sherman has uploaded to Wikipedia all the information he has collected about this pioneering officer. Have a look at it. Follow the link. If it does not work paste it in your browser http://en.wikipedia.org/wiki/Douglas_Hamilton 15th February 2009 Dr Marco Festa-Bianchet re-nominated Chair CSG Dr.Marco Festa-Bianchet has been re-nominated as Chairman Of Caprinae Specialist group of SSC of IUCN. The chairman is planning a complete revamp of the CSG ahead of the 5th World Congress on Mountain Ungulates. We wish him a fruitful term as Chair of CSG Have a look at Dr Clifford G Rice's work on Mountain Goats of Washington available at http://tinyurl.com/MtnGoat. 5th October 2008 Dr Clifford G Rice has posted his
publications on Nilgiri tahr on the web. It can be accessed at http://home.comcast.net/~cefprice/tahrpubs/Nilgiri_tahr_publications.htm 9th
July 2008
5th
World Congress on Mountain Ungulates The
world congress on Mountain Ungulates is an event eagerly awaited by Caprinae
wildlife biologists and wildlife mangers. Here is good news. The 1st
announcement regarding the 5th conference is out. It will be held in
Andalucia, Spain, from November 10th to 13th 2009, with a full-day
excursion on the 14th.Details will be posted on CSG website soon. 8th
May 2008 New
Papers by Mr E. Kunhikrishnan Mr
KunhiKrishnan has sent us two new papers on Shola and grasslands. Please
look it up under Shola Forests New Distribution
and status of the endangered Nilgiri tahr CURRENT
SCIENCE, VOL. 94, NO. 1, 10 JANUARY 2008 R.
J. RANJIT DANIELS P.
S. EASA MOHAN
ALEMBATH The
Chennai edition of The Hindu dated 24 November 2007 carried an article
on conservation breeding of endangered mammals. The proposed conservation
initiative of the Government of India targets a few species of mammals,
including the Nilgiri tahr (Hemitragus hylocrius), that are endemic to
the Western Ghats. The article suggests that the population size of the Nilgiri
tahr presently stands at3500 and reintroduction of captive-bred animals will
improve the conservation status of the species.
The article has certainly reiterated the need for more dedicated conservation
efforts on less charismatic species like the Nilgiri tahr. Nevertheless, we
contend that both the estimated population size and the proposed conservation
strategy presented therein are rather unrealistic.The reasons for our skepticism
are presented here. One
of the recent checklists of the world’s extant mammals includes 34species1 of
caprine ungulates (goats, sheep and allies). And among the extant caprine
ungulates, the Nilgiri tahr has the unique distinction of being the only species
that is endemic to tropicalmountains2. The Nilgiri tahr is one of the three
species known in the genus Hemitragus.While it is generally accepted that
the three species of tahr are the descendants of an extinct Eurasian ancestor2,
some biologists believe that the Arabian, Himalayan and Nilgiri tahrs have had
varied ancestry and that the Nilgiri tahr shouldbe placed in an endemic
monotypic genus,Nilgiritragus3. In spite of the taxonomic uncertainties
and debates, the fact that he Nilgiri tahr is a Pleistocene relic inthe Western
Ghats2 enhances its conservation value. During
the year 2006, the Wildlife Trust of India (New Delhi) sponsored a short-term
survey of the Nilgiri tahr4. Although the duration was only four months,
(May–August), the study had several merits. To begin with, it is noteworthy that
the 2006survey was the first attempt that was made to assess the habitat,
distribution and population size of the Nilgiri tahr over its entire range after
a gap of over two decades. Further, with the cooperation andsupport of the
Forest Departments ofTamil Nadu and Kerala, the study provided us opportunities
to visit some remote localities where there have not beenany recent surveys made
(Care Earth and Wildlife Trust of India, unpublished). The
key finding of our recent study is that the population size of the Nilgiri tahr
may not be more than 2000 at present(Care Earth and Wildlife Trust of
India,unpublished). An analysis of census data for four decades, beginning in
1969,available for Eravikulam National Park,Mukurthi National Park and Indira
Gandhi Wildlife Sanctuary and National Park, has suggested that the number of
Nilgiritahrs has fluctuated considerably even where the species has enjoyed
75–100years of protection. The discernable trendhas only pointed to population
decline in two out of three of the dedicated Nilgiritahr conservation areas4.
The primaryr easons for the decline in the number of Nilgiri tahrs are loss of
habitat and hunting (Care Earth and Wildlife Trust of India, unpublished).
Historical
information available of the geographical range, population size and
distribution has suggested that the Nilgiritahr occurred in mid and high
elevation hills of southwestern Karnataka, western Tamil Nadu and Kerala2. Over
this 400 km range in the southern Western Ghats, there may have been
50,000–100,000Nilgiri tahrs at the time that the Britishinvaded the region. This
estimate has been made taking into consideration early reports that in the
Palani Hills landscape alone there was a population of 25,000–30,000 (Care Earth
and Wildlife Trust ofIndia, unpublished). Hunting and habitat loss soon
decimated the Nilgiri tahr that by the turn of the twentieth century the species
was on the brink of extinction2. While
it is remarkable that in 100years the population of the tahr has recovered
pattern and population trends do not suggest that the species is doing well.
For, at present, the Nilgiri tahr is known only from 50 to 60 localities that
are distributed over six high elevation landscapes in the Western Ghats of
TamilNadu and Kerala, wherein local populations are often in the form of single
herds of not more than 10 individuals (CareEarth and Wildlife Trust of India,
unpublished). Small and isolated populations of the tahr found throughout the
six landscapes are indication that despite fragmentation, degradation and
pressures of Poaching, the existing habitats continueto support the species. As
much of the available information on the Nilgiri tahr has come from studies that
were confined to a few easily accessible localities and familiar populations,
little is known about the survival strategies that the species adopts, in
isolation, outside the conservation areas. In
the absence of more detailed studies that shed light on the dynamics, including
patterns of migration (if any) of the’ marginal’ populations, and the
availability and suitability of habitats, attempts to breed and reintroduce the
Nilgiri tahr will be premature. Unless dedicated efforts are made to control
poaching and improve the extent and quality of habitat, reintroduced animals are
unlikely to survive. A conservation strategy that lays emphasis on improving
habitat extent and quality, such that the connectivity between marginal and core
populations is reestablished within (and possibly between)the landscapes, seems
to be the most appropriate intervention at this juncture. 1.
Duff, A. and Lawson, A., Mammals of the World: A Checklist, A & C
Black, London, 2004. 2.
Daniels, R. J. R., The Nilgiri Tahr: An Endemic South Indian Mountain
Goat, Macmillan India Ltd, New Delhi, 2006. |