نتایج جستجو برای: tiger sign

تعداد نتایج: 60228  

2018
Kanchan Thapa Sulochana Manandhar Manisha Bista Jivan Shakya Govind Sah Maheshwar Dhakal Netra Sharma Bronwyn Llewellyn Claudia Wultsch Lisette P Waits Marcella J Kelly Jean-Marc Hero Jane Hughes Dibesh Karmacharya

With fewer than 200 tigers (Panthera tigris tigris) left in Nepal, that are generally confined to five protected areas across the Terai Arc Landscape, genetic studies are needed to provide crucial information on diversity and connectivity for devising an effective country-wide tiger conservation strategy. As part of the Nepal Tiger Genome Project, we studied landscape change, genetic variation,...

2013
Digpal Singh Gour Jyotsna Bhagavatula Maradani Bhavanishankar Patlolla Anuradha Reddy Jaya A. Gupta Mriganka Shekhar Sarkar Shaik Mohammed Hussain Segu Harika Ravinder Gulia Sisinthy Shivaji

BACKGROUND Tiger populations are dwindling rapidly making it increasingly difficult to study their dispersal and mating behaviour in the wild, more so tiger being a secretive and solitary carnivore. METHODS We used non-invasively obtained genetic data to establish the presence of 28 tigers, 22 females and 6 males, within the core area of Pench tiger reserve, Madhya Pradesh. This data was eval...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Maureen E Ryan Jarrett R Johnson Benjamin M Fitzpatrick

Although the ecological consequences of species invasions are well studied, the ecological impacts of genetic introgression through hybridization are less understood. This is particularly true of the impacts of hybridization on "third party" community members not genetically involved in hybridization. We also know little about how direct interactions between hybrid and parental individuals infl...

2016
Aitana Oltra Frederic Bartumeus

This chapter describes AtrapaelTigre.com, a citizen science project focusing on the Asian tiger mosquito in Spain. Commonly known for its aggressive biting during the day, the tiger mosquito represents a global environmental problem. It is an invasive species and a vector for dengue, chikungunya and other diseases, making it a serious public health risk. It is also an everyday nuisance and a th...

2013
CLAYTON S. MILLER MARK HEBBLEWHITE YURI K. PETRUNENKO IVAN V. SERYODKIN NICHOLAS J. DECESARE JOHN M. GOODRICH

. MIQUELLE, D. G., ET AL. 1999a. A habitat protection plan for the Amur tiger: developing political and ecological criteria for a viable landuse plan. Pp. 273–295 in Riding the tiger: meeting the needs of people and wildlife in Asia (J. Seidensticker, S. Christie, and P. Jackson, eds.). Cambridge University Press, Cambridge, United

2001
Richard Damania Randy Stringer K. Ullas Karanth Brad Stith Kym Anderson

The tiger (Panthera tigris) is classified as endangered (IUCN, 2000). The population of wild tigers continues to decline, despite substantial conservation investments by governments and international agencies. This paper presents a formal economic analysis of the two most imminent threats to the survival of wild tigers: poaching of wild tigers and hunting their prey. A model is developed to exa...

Journal: :Vision Research 2007
Tim S. Meese Robert F. Hess

Studies of spatial summation often use sinusoidal gratings with blurred edges. When the envelope is elongated (i) along the grating stripes and (ii) at right angles to the grating stripes, we refer to the stimuli as skunk-tails and tiger-tails respectively. Previous work [Polat & Tyler, 1999; Vision Research, 39, 887-895.] has found that sensitivity to skunk-tails is greater than for tiger-tail...

Journal: :The Journal of experimental biology 2006
J R Barber W E Conner

Many night-flying insects perform complex, aerobatic escape maneuvers when echolocating bats initiate attack. Tiger moths couple this kinematic defense with an acoustic reply to a bat's biosonar-guided assault. The jamming hypothesis for the function of these moth sounds assumes that tiger moth clicks presented at high densities, temporally locked to the terminal phase of the bat attack will pr...

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