منابع مشابه
Phylogenetic diversity of endangered and critically endangered southeast Asian softshell turtles (Trionychidae: Chitra)
The intense exploitation of turtles in Asian markets has contributed to declines in turtle populations across the continent. Threequarters of Asia’s turtles are threatened and half are endangered. A recent workshop on the Asian turtle crisis identified taxonomic studies of widespread species as a priority for research because these low risk species may include unrecognized, narrowly distributed...
متن کاملHybridization following population collapse in a critically endangered antelope
Population declines may promote interspecific hybridization due to the shortage of conspecific mates (Hubb's 'desperation' hypothesis), thus greatly increasing the risk of species extinction. Yet, confirming this process in the wild has proved elusive. Here we combine camera-trapping and molecular surveys over seven years to document demographic processes associated with introgressive hybridiza...
متن کاملFacultative parthenogenesis in a critically endangered wild vertebrate
Facultative parthenogenesis - the ability of sexually reproducing species to sometimes produce offspring asexually - is known from a wide range of ordinarily sexually reproducing vertebrates in captivity, including some birds, reptiles and sharks [1-3]. Despite this, free-living parthenogens have never been observed in any of these taxa in the wild, although two free-living snakes were recently...
متن کاملMyxozoan Parasite in Brain of Critically Endangered Frog
3. Musa OI, Aderibigbe SA, Salaudeen GA, Oluwole FA, Samuel SO. Community awareness of bird fl u and the practice of backyard poultry in a north-central state of Nigeria. J Prev Med Hyg. 2010;51:146– 51. 4. Pawitan JA. Averting avian infl uenza pandemic: SOS from a developing country. Lancet Infect Dis. 2006;6:756–7. h t tp : / /dx .do i .o rg /10 .1016 /S14733099(06)70638-7 5. Barennes H, Mart...
متن کاملTourism and the Conservation of Critically Endangered Frogs
Protected areas are critical for the conservation of many threatened species. Despite this, many protected areas are acutely underfunded, which reduces their effectiveness significantly. Tourism is one mechanism to promote and fund conservation in protected areas, but there are few studies analyzing its tangible conservation outcomes for threatened species. This study uses the 415 IUCN critical...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1997
ISSN: 0028-0836,1476-4687
DOI: 10.1038/38873