Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests.
Large carnivores living in tropical rainforests are under immense pressure from the rapid conversion of their habitat. In response, millions of dollars are spent on conserving these species. However, the cost-effectiveness of such investments is poorly understood and this is largely because the requ...
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Public Library of Science (PLoS)
2011
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/bd73d0ffb22d4cf880b6162b1f06b551 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:bd73d0ffb22d4cf880b6162b1f06b551 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:bd73d0ffb22d4cf880b6162b1f06b5512021-11-18T07:35:05ZPopulation status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests.1932-620310.1371/journal.pone.0025931https://doaj.org/article/bd73d0ffb22d4cf880b6162b1f06b5512011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22087218/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Large carnivores living in tropical rainforests are under immense pressure from the rapid conversion of their habitat. In response, millions of dollars are spent on conserving these species. However, the cost-effectiveness of such investments is poorly understood and this is largely because the requisite population estimates are difficult to achieve at appropriate spatial scales for these secretive species. Here, we apply a robust detection/non-detection sampling technique to produce the first reliable population metric (occupancy) for a critically endangered large carnivore; the Sumatran tiger (Panthera tigris sumatrae). From 2007-2009, seven landscapes were surveyed through 13,511 km of transects in 394 grid cells (17×17 km). Tiger sign was detected in 206 cells, producing a naive estimate of 0.52. However, after controlling for an unequal detection probability (where p = 0.13±0.017; ±S.E.), the estimated tiger occupancy was 0.72±0.048. Whilst the Sumatra-wide survey results gives cause for optimism, a significant negative correlation between occupancy and recent deforestation was found. For example, the Northern Riau landscape had an average deforestation rate of 9.8%/yr and by far the lowest occupancy (0.33±0.055). Our results highlight the key tiger areas in need of protection and have led to one area (Leuser-Ulu Masen) being upgraded as a 'global priority' for wild tiger conservation. However, Sumatra has one of the highest global deforestation rates and the two largest tiger landscapes identified in this study will become highly fragmented if their respective proposed roads networks are approved. Thus, it is vital that the Indonesian government tackles these threats, e.g. through improved land-use planning, if it is to succeed in meeting its ambitious National Tiger Recovery Plan targets of doubling the number of Sumatran tigers by 2022.Hariyo T WibisonoMatthew LinkieGurutzeta Guillera-ArroitaJoseph A SmithSunartoWulan PuspariniAsriadiPandu BarotoNick BrickleYoan DinataElva GemitaDonny GunaryadiIding A HaidirHerwansyahIndri KarinaDedy KiswayadiDecki KristiantonoHarry KurniawanJosé J Lahoz-MonfortNigel Leader-WilliamsTom MaddoxDeborah J MartyrMaryatiAgung NugrohoKarmila ParakkasiDolly PriatnaEka RamadiyantaWidodo S RamonoGoddilla V ReddyEnte J J RoodDoddy Y SaputraAhmad SarimudiAdnun SalampessyEka SeptayudaTonny SuhartonoAde SumantriSusiloIswandri TanjungTarmiziKoko YuliantoMohammad YunusZulfahmiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 11, p e25931 (2011) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Hariyo T Wibisono Matthew Linkie Gurutzeta Guillera-Arroita Joseph A Smith Sunarto Wulan Pusparini Asriadi Pandu Baroto Nick Brickle Yoan Dinata Elva Gemita Donny Gunaryadi Iding A Haidir Herwansyah Indri Karina Dedy Kiswayadi Decki Kristiantono Harry Kurniawan José J Lahoz-Monfort Nigel Leader-Williams Tom Maddox Deborah J Martyr Maryati Agung Nugroho Karmila Parakkasi Dolly Priatna Eka Ramadiyanta Widodo S Ramono Goddilla V Reddy Ente J J Rood Doddy Y Saputra Ahmad Sarimudi Adnun Salampessy Eka Septayuda Tonny Suhartono Ade Sumantri Susilo Iswandri Tanjung Tarmizi Koko Yulianto Mohammad Yunus Zulfahmi Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| description |
Large carnivores living in tropical rainforests are under immense pressure from the rapid conversion of their habitat. In response, millions of dollars are spent on conserving these species. However, the cost-effectiveness of such investments is poorly understood and this is largely because the requisite population estimates are difficult to achieve at appropriate spatial scales for these secretive species. Here, we apply a robust detection/non-detection sampling technique to produce the first reliable population metric (occupancy) for a critically endangered large carnivore; the Sumatran tiger (Panthera tigris sumatrae). From 2007-2009, seven landscapes were surveyed through 13,511 km of transects in 394 grid cells (17×17 km). Tiger sign was detected in 206 cells, producing a naive estimate of 0.52. However, after controlling for an unequal detection probability (where p = 0.13±0.017; ±S.E.), the estimated tiger occupancy was 0.72±0.048. Whilst the Sumatra-wide survey results gives cause for optimism, a significant negative correlation between occupancy and recent deforestation was found. For example, the Northern Riau landscape had an average deforestation rate of 9.8%/yr and by far the lowest occupancy (0.33±0.055). Our results highlight the key tiger areas in need of protection and have led to one area (Leuser-Ulu Masen) being upgraded as a 'global priority' for wild tiger conservation. However, Sumatra has one of the highest global deforestation rates and the two largest tiger landscapes identified in this study will become highly fragmented if their respective proposed roads networks are approved. Thus, it is vital that the Indonesian government tackles these threats, e.g. through improved land-use planning, if it is to succeed in meeting its ambitious National Tiger Recovery Plan targets of doubling the number of Sumatran tigers by 2022. |
| format |
article |
| author |
Hariyo T Wibisono Matthew Linkie Gurutzeta Guillera-Arroita Joseph A Smith Sunarto Wulan Pusparini Asriadi Pandu Baroto Nick Brickle Yoan Dinata Elva Gemita Donny Gunaryadi Iding A Haidir Herwansyah Indri Karina Dedy Kiswayadi Decki Kristiantono Harry Kurniawan José J Lahoz-Monfort Nigel Leader-Williams Tom Maddox Deborah J Martyr Maryati Agung Nugroho Karmila Parakkasi Dolly Priatna Eka Ramadiyanta Widodo S Ramono Goddilla V Reddy Ente J J Rood Doddy Y Saputra Ahmad Sarimudi Adnun Salampessy Eka Septayuda Tonny Suhartono Ade Sumantri Susilo Iswandri Tanjung Tarmizi Koko Yulianto Mohammad Yunus Zulfahmi |
| author_facet |
Hariyo T Wibisono Matthew Linkie Gurutzeta Guillera-Arroita Joseph A Smith Sunarto Wulan Pusparini Asriadi Pandu Baroto Nick Brickle Yoan Dinata Elva Gemita Donny Gunaryadi Iding A Haidir Herwansyah Indri Karina Dedy Kiswayadi Decki Kristiantono Harry Kurniawan José J Lahoz-Monfort Nigel Leader-Williams Tom Maddox Deborah J Martyr Maryati Agung Nugroho Karmila Parakkasi Dolly Priatna Eka Ramadiyanta Widodo S Ramono Goddilla V Reddy Ente J J Rood Doddy Y Saputra Ahmad Sarimudi Adnun Salampessy Eka Septayuda Tonny Suhartono Ade Sumantri Susilo Iswandri Tanjung Tarmizi Koko Yulianto Mohammad Yunus Zulfahmi |
| author_sort |
Hariyo T Wibisono |
| title |
Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| title_short |
Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| title_full |
Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| title_fullStr |
Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| title_full_unstemmed |
Population status of a cryptic top predator: an island-wide assessment of tigers in Sumatran rainforests. |
| title_sort |
population status of a cryptic top predator: an island-wide assessment of tigers in sumatran rainforests. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2011 |
| url |
https://doaj.org/article/bd73d0ffb22d4cf880b6162b1f06b551 |
| work_keys_str_mv |
AT hariyotwibisono populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT matthewlinkie populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT gurutzetaguilleraarroita populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT josephasmith populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT sunarto populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT wulanpusparini populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT asriadi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT pandubaroto populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT nickbrickle populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT yoandinata populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT elvagemita populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT donnygunaryadi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT idingahaidir populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT herwansyah populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT indrikarina populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT dedykiswayadi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT deckikristiantono populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT harrykurniawan populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT josejlahozmonfort populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT nigelleaderwilliams populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT tommaddox populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT deborahjmartyr populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT maryati populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT agungnugroho populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT karmilaparakkasi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT dollypriatna populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT ekaramadiyanta populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT widodosramono populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT goddillavreddy populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT entejjrood populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT doddyysaputra populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT ahmadsarimudi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT adnunsalampessy populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT ekaseptayuda populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT tonnysuhartono populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT adesumantri populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT susilo populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT iswandritanjung populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT tarmizi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT kokoyulianto populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT mohammadyunus populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests AT zulfahmi populationstatusofacryptictoppredatoranislandwideassessmentoftigersinsumatranrainforests |
| _version_ |
1718423248297787392 |