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323 results on '"Robinson, John G."'

1. Scaling up area-based conservation to implement the Global Biodiversity Framework’s 30x30 target: The role of Nature’s Strongholds

Author

Robinson, John G., primary, LaBruna, Danielle, additional, O’Brien, Tim, additional, Clyne, Peter J., additional, Dudley, Nigel, additional, Andelman, Sandy J., additional, Bennett, Elizabeth L., additional, Chicchon, Avecita, additional, Durigan, Carlos, additional, Grantham, Hedley, additional, Kinnaird, Margaret, additional, Lieberman, Sue, additional, Maisels, Fiona, additional, Moreira, Adriana, additional, Rao, Madhu, additional, Stokes, Emma, additional, Walston, Joe, additional, and Watson, James EM, additional

Published
2024
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3. Net positive outcomes for nature

Author

Bull, Joseph W., Milner-Gulland, E. J., Addison, Prue F. E., Arlidge, William N. S., Baker, Julia, Brooks, Thomas M., Burgass, Michael J., Hinsley, Amy, Maron, Martine, Robinson, John G., Sekhran, Nik, Sinclair, Samuel P., Stuart, Simon N., zu Ermgassen, Sophus O. S. E., and Watson, James E. M.

Published
2020
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4. The Initial Mass Function and Disk Frequency of the Rho Ophiuchi Cloud: An Extinction-Limited Sample

Author

Erickson, Kristen L., Wilking, Bruce A., Meyer, Michael R., Robinson, John G., and Stephenson, Lauren N.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

We have completed an optical spectroscopic survey of an unbiased, extinction-limited sample of candidate young stars covering 1.3 square degrees of the Rho Ophiuchi star forming region. While infrared, X-ray, and optical surveys of the cloud have identified many young stellar objects (YSOs), these surveys are biased towards particular stages of stellar evolution and are not optimal for studies of the disk frequency and initial mass function.We have obtained over 300 optical spectra to help identify 135 association members based on the presence of H-alpha in emission, lithium absorption, X-ray emission, a mid-infrared excess, a common proper motion, reflection nebulosity, and/or extinction considerations. Spectral types along with R and I band photometry were used to derive effective temperatures and bolometric luminosities for association members to compare with theoretical tracks and isochrones for pre-main-sequence stars. An average age of 3.1 Myr is derived for this population which is intermediate between that of objects embedded in the cloud core of Rho Ophiuchi and low mass stars in the Upper Scorpius subgroup. Consistent with this age we find a circumstellar disk frequency of 27% plus or minus 5%. We also constructed an initial mass function for an extinction-limited sample of 123 YSOs (A_v less than or equal to 8 mag), which is consistent with the field star initial mass function for YSOs with masses > 0.2 M_sun. There may be a deficit of brown dwarfs but this result relies on completeness corrections and requires confirmation., Comment: 46 pages, 7 figures, 4 tables

Published
2011
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7. What Does It Mean to Successfully Conserve a (Vertebrate) Species?

Author

Redford, Kent H., Amato, George, Baillie, Jonathan, Beldomenico, Pablo, Bennett, Elizabeth L., Clum, Nancy, Cook, Robert, Fonseca, Gustavo, Hedges, Simon, Launay, Frederic, Lieberman, Susan, Mace, Georgina M., Murayama, Akira, Putnam, Andrea, Robinson, John G., Rosenbaum, Howard, Sanderson, Eric W., Stuart, Simon N., Thomas, Patrick, and Thorbjarnarson, John

Published
2011
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8. Optical Spectroscopy of the Surface Population of the rho Ophiuchi Molecular Cloud: The First Wave of Star Formation

Author

Wilking, Bruce A., Meyer, Michael R., Robinson, John G., and Greene, Thomas P.

Subjects
Astrophysics
Abstract

We present the results of optical spectroscopy of 139 stars obtained with the Hydra multi-object spectrograph. The objects extend over a 1.3 square degree area surrounding the main cloud of the rho Oph complex. The objects were selected from narrowband images to have H alpha in emission. Using the presence of strong H alpha emission, lithium absorption, location in the Hertzsprung-Russell diagram, or previously reported x-ray emission, we were able to identify 88 objects as young stars associated with the cloud. Strong H alpha emission was confirmed in 39 objects with line widths consistent with their origin in magnetospheric accretion columns. Two of the strongest emission-line objects are young, x-ray emitting brown dwarf candidates with M8 spectral types. Comparisons of the bolometric luminosities and effective temperatures with theoretical models suggest a medianage for this population of 2.1 Myr which is signifcantly older than the ages derived for objects in the cloud core. It appears that these stars formed contemporaneously with low mass stars in the Upper Scorpius subgroup, likely triggered by massive stars in the Upper-Centaurus subgroup., Comment: 35 pages of postscript which includes seven figures (some of which are multi-panel) and four postscript tables. Astronomical Journal (in press)

Published
2005
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11. Developing an outcomes-based approach to achieving Target 3 of the Global Biodiversity Framework

Author

Dudley, Nigel, Robinson, John G., Andelman, Sandy, Bingham, Heather C., Conzo, Lori Anna, Geldmann, Jonas, Grorud-Colvert, Kirsten, Gurney, Georgina G., Hickey, Valerie, Hockings, Marc, Jonas, Harry D., Kettunen, Marianne, Marnewick, Daniel, Masozera, Michel, Mitchell, L Brent, Parrish, Jeffrey, Redford, Kent, Espinoza, Andrew Rhodes, Russi, Daniel, Salafsky, Nick, Springer, Jenny, Sullivan-Stack, Jenna, Tugendhat, Helen, Watson, James E. M., Wilkie, David S., and Woodley, Stephen

Subjects
Nature and Landscape Conservation
Abstract

The draft Global Biodiversity Framework proposes to increase protected areas and OECMs to at least 30 per cent of land and ocean by 2030 (30x30). Such areas are central to conservation, but only if effectively managed and equitably governed. In practice, governments often recognise areas that do not achieve successful outcomes or respect human rights and fail to recognise other effective governance systems. We argue that protected areas and OECMs should only be recognised as fully contributing to 30x30 if they are on track to achieve positive and sustained biodiversity outcomes while respecting human rights. Three principles are important: • Delivery of positive outcomes relating to biodiversity; • Recognition and respect for rights-holders and stakeholders living in or near the area or dependent on its natural resources; and • Meeting human needs through ecosystem services. Four levels in making progress towards Target 3 can be distinguished: 1. Areas that are currently fully effective; 2. Areas that are currently partially effective or on track to being effective; 3. Areas that are currently ineffective due to reversible issues; and 4. Areas that are currently and will continue to be ineffective due to irreversible issues. Some policy implications of this typology, its strengths and weaknesses, and how it might be further developed are discussed

Published
2022

12. Mapping the Conservation Landscape

Author

Redford, Kent H., Coppolillo, Peter, Sanderson, Eric W., Dinerstein, Eric, Groves, Craig, Mace, Georgina, Maginnis, Stewart, Mittermeier, Russell A., Noss, Reed, Olson, David, Robinson, John G., Vedder, Amy, and Wright, Michael

Published
2003

17. The exceptional value of intact forest ecosystems

Author

Watson, James E. M., Evans, Tom, Venter, Oscar, Williams, Brooke, Tulloch, Ayesha, Stewart, Claire, Thompson, Ian, Ray, Justina C., Murray, Kris, Salazar, Alvaro, McAlpine, Clive, Potapov, Peter, Walston, Joe, Robinson, John G., Painter, Michael, Wilkie, David, Filardi, Christopher, Laurance, William F., Houghton, Richard A., Maxwell, Sean, Grantham, Hedley, Samper, Cristián, Wang, Stephanie, Laestadius, Lars, Runting, Rebecca K., Silva-Chávez, Gustavo A., Ervin, Jamison, and Lindenmayer, David

Published
2018
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23. Response: Where Might We Find Ecologically Intact Communities?

Author

Grantham, Hedley S., primary, Evans, Tom, additional, Lieberman, Susan, additional, Robinson, John G., additional, Elsen, Paul R., additional, Ferrier, Simon, additional, Kearney, Stephen G., additional, Maurer, Golo, additional, Surya, Gautam, additional, Spindler, Rebecca, additional, Stasak, Basha, additional, Trezise, James, additional, and Watson, James E. M., additional

Published
2022
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25. Wild Meat Is Still on the Menu: Progress in Wild Meat Research, Policy, and Practice from 2002 to 2020

Author

Ingram, Daniel J., primary, Coad, Lauren, additional, Milner-Gulland, E.J., additional, Parry, Luke, additional, Wilkie, David, additional, Bakarr, Mohamed I., additional, Benítez-López, Ana, additional, Bennett, Elizabeth L., additional, Bodmer, Richard, additional, Cowlishaw, Guy, additional, El Bizri, Hani R., additional, Eves, Heather E., additional, Fa, Julia E., additional, Golden, Christopher D., additional, Iponga, Donald Midoko, additional, Minh, Nguyễn Văn, additional, Morcatty, Thais Q., additional, Mwinyihali, Robert, additional, Nasi, Robert, additional, Nijman, Vincent, additional, Ntiamoa-Baidu, Yaa, additional, Pattiselanno, Freddy, additional, Peres, Carlos A., additional, Rao, Madhu, additional, Robinson, John G., additional, Rowcliffe, J. Marcus, additional, Stafford, Ciara, additional, Supuma, Miriam, additional, Tarla, Francis Nchembi, additional, van Vliet, Nathalie, additional, Wieland, Michelle, additional, and Abernethy, Katharine, additional

Published
2021
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32. Models of Human Evolution

Author

Harley, Diahan, Wood, James W., Wolfe, Linda D., Gray, J. Patrick, Robinson, John G., Lieberman, Leslie S., Peters, Elizabeth H., Cann, Rebecca L., Wilson, Allan C., and Lovejoy, C. Owen

Published
1982

38. Wild meat Is still on the menu: Progress in wild meat research, policy, and practice from 2002 to 2020

Author

Ingram, Daniel J, Coad, Lauren, Milner-Gulland, EJ, Parry, Luke, Wilkie, David, Bakarr, Mohamed I, Benítez-López, Ana, Bennett, Elizabeth L, Bodmer, Richard, Cowlishaw, Guy, Bizri, Hani R El, Eves, Heather E, Fa, Julia E, Golden, Christopher D, Iponga, Donald Midoko, Minh, Nguyễn Văn, Morcatty, Thais Q, Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A, Rao, Madhu, Robinson, John G, Rowcliffe, J Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, van Vliet, Nathalie, Wieland, Michelle, Abernethy, Katharine, Ingram, Daniel J, Coad, Lauren, Milner-Gulland, EJ, Parry, Luke, Wilkie, David, Bakarr, Mohamed I, Benítez-López, Ana, Bennett, Elizabeth L, Bodmer, Richard, Cowlishaw, Guy, Bizri, Hani R El, Eves, Heather E, Fa, Julia E, Golden, Christopher D, Iponga, Donald Midoko, Minh, Nguyễn Văn, Morcatty, Thais Q, Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A, Rao, Madhu, Robinson, John G, Rowcliffe, J Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, van Vliet, Nathalie, Wieland, Michelle, and Abernethy, Katharine

Abstract

Several hundred species are hunted for wild meat in the tropics, supporting the diets, customs, and livelihoods of millions of people. However, unsustainable hunting is one of the most urgent threats to wildlife and ecosystems worldwide and has serious ramifications for people whose subsistence and income are tied to wild meat. Over the past 18 years, although research efforts have increased, scientific knowledge has largely not translated into action. One major barrier to progress has been insufficient monitoring and evaluation, meaning that the effectiveness of interventions cannot be ascertained. Emerging issues include the difficulty of designing regulatory frameworks that disentangle the different purposes of hunting, the large scale of urban consumption, and the implications of wild meat consumption for human health. To address these intractable challenges, we propose eight new recommendations for research and action for sustainable wild meat use, which would support the achievement of the United Nations Sustainable Development Goals. Expected final online publication date for the Annual Review of Environment and Resources, Volume 46 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

Published
2021

39. Wild Meat Is Still on the Menu: Progress in Wild Meat Research, Policy, and Practice from 2002 to 2020

Author

Ingram, Daniel J., Coad, Lauren, Milner-Gulland, E.J., Parry, Luke, Wilkie, David, Bakarr, Mohamed I., Benítez-López, Ana, Bennett, Elizabeth L., Bodmer, Richard, Cowlishaw, Guy, El Bizri, Hani R., Eves, Heather E., Fa, Julia E., Golden, Christopher D., Iponga, Donald Midoko, Minh, Nguyễn Văn, Morcatty, Thais Q., Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A., Rao, Madhu, Robinson, John G., Rowcliffe, J. Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, van Vliet, Nathalie, Wieland, Michelle, Abernethy, Katharine, Ingram, Daniel J., Coad, Lauren, Milner-Gulland, E.J., Parry, Luke, Wilkie, David, Bakarr, Mohamed I., Benítez-López, Ana, Bennett, Elizabeth L., Bodmer, Richard, Cowlishaw, Guy, El Bizri, Hani R., Eves, Heather E., Fa, Julia E., Golden, Christopher D., Iponga, Donald Midoko, Minh, Nguyễn Văn, Morcatty, Thais Q., Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A., Rao, Madhu, Robinson, John G., Rowcliffe, J. Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, van Vliet, Nathalie, Wieland, Michelle, and Abernethy, Katharine

Abstract

Several hundred species are hunted for wild meat in the tropics, supporting the diets, customs, and livelihoods of millions of people. However, unsustainable hunting is one of the most urgent threats to wildlife and ecosystems worldwide and has serious ramifications for people whose subsistence and income are tied to wild meat. Over the past 18 years, although research efforts have increased, scientific knowledge has largely not translated into action. One major barrier to progress has been insufficient monitoring and evaluation, meaning that the effectiveness of interventions cannot be ascertained. Emerging issues include the difficulty of designing regulatory frameworks that disentangle the different purposes of hunting, the large scale of urban consumption, and the implications of wild meat consumption for human health. To address these intractable challenges, we propose eight new recommendations for research and action for sustainable wild meat use, which would support the achievement of the United Nations Sustainable Development Goals.

Published
2021

40. Wild Meat Is Still on the Menu: Progress in Wild Meat Research, Policy, and Practice from 2002 to 2020

Author

Ministerio de Ciencia e Innovación (España), Fish and Wildlife Service (US), United States Agency for International Development, Wildlife Conservation Society, British Federation of Women Graduates, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Research England, Ingram, Daniel J., Coad, Lauren, Milner-Gulland, E.J., Parry, Luke, Wilkie, David, Bakarr, Mohamed I., Benítez-López, Ana, Bennett, Elizabeth L., Bodmer, Richard, Cowlishaw, Guy, El Bizri, Hani R., Eves, Heather E., Fa, Julia E., Golden, Christopher D., Iponga, Donald Midoko, Minh, Nguyen Vaan, Morcatty, Thais Q., Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A., Rao, Madhu, Robinson, John G., Rowcliffe, J. Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, Van Vliet, Nathalie, Wieland, Michelle, Abernethy, Katharine, Ministerio de Ciencia e Innovación (España), Fish and Wildlife Service (US), United States Agency for International Development, Wildlife Conservation Society, British Federation of Women Graduates, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Research England, Ingram, Daniel J., Coad, Lauren, Milner-Gulland, E.J., Parry, Luke, Wilkie, David, Bakarr, Mohamed I., Benítez-López, Ana, Bennett, Elizabeth L., Bodmer, Richard, Cowlishaw, Guy, El Bizri, Hani R., Eves, Heather E., Fa, Julia E., Golden, Christopher D., Iponga, Donald Midoko, Minh, Nguyen Vaan, Morcatty, Thais Q., Mwinyihali, Robert, Nasi, Robert, Nijman, Vincent, Ntiamoa-Baidu, Yaa, Pattiselanno, Freddy, Peres, Carlos A., Rao, Madhu, Robinson, John G., Rowcliffe, J. Marcus, Stafford, Ciara, Supuma, Miriam, Tarla, Francis Nchembi, Van Vliet, Nathalie, Wieland, Michelle, and Abernethy, Katharine

Abstract

Several hundred species are hunted for wild meat in the tropics, supporting the diets, customs, and livelihoods of millions of people. However, unsustainable hunting is one of the most urgent threats to wildlife and ecosystems worldwide and has serious ramifications for people whose subsistence and income are tied to wild meat. Over the past 18 years, although research efforts have increased, scientific knowledge has largely not translated into action. One major barrier to progress has been insufficient monitoring and evaluation, meaning that the effectiveness of interventions cannot be ascertained. Emerging issues include the difficulty of designing regulatory frameworks that disentangle the different purposes of hunting, the large scale of urban consumption, and the implications of wild meat consumption for human health. To address these intractable challenges, wepropose eight new recommendations for research and action for sustainable wild meat use, which would support the achievement of the United Nations Sustainable Development Goals.

Published
2021

41. Area Requirements to Safeguard Earth's Marine Species

Author

Jones, Kendall R., Klein, Carissa J., Grantham, Hedley S., Possingham, Hugh P., Halpern, Benjamin S., Burgess, Neil D., Butchart, Stuart H. M., Robinson, John G., Kingston, Naomi, Bhola, Nina, Watson, James E. M., Jones, Kendall R., Klein, Carissa J., Grantham, Hedley S., Possingham, Hugh P., Halpern, Benjamin S., Burgess, Neil D., Butchart, Stuart H. M., Robinson, John G., Kingston, Naomi, Bhola, Nina, and Watson, James E. M.

Abstract

Despite global policy commitments to preserve Earth's marine biodiversity, many species are in a state of decline. Using data on 22,885 marine species, we identify 8.5 million km(2) of priority areas that complement existing areas of conservation and biodiversity importance. New conservation priorities are found in over half (56%) of all coastal nations, including key priority regions in the northwest Pacific Ocean and Atlantic Ocean. We identify where different conservation actions, ranging from marine protected areas to broader policy approaches, might best overcome anthropogenic threats to these areas. This analysis shows 26%-41% of the ocean (depending on targets used for species representation) needs to be effectively managed and conserved through a combination of site-based actions and broad policy responses to achieve global conservation and sustainable development agendas.

Published
2020

44. Parks as Shibboleths

Author

Redford, Kent H., Robinson, John G., and Adams, William M.

Published
2006

46. Area Requirements to Safeguard Earth's Marine Species

Author

Jones, Kendall R., primary, Klein, Carissa J., additional, Grantham, Hedley S., additional, Possingham, Hugh P., additional, Halpern, Benjamin S., additional, Burgess, Neil D., additional, Butchart, Stuart H.M., additional, Robinson, John G., additional, Kingston, Naomi, additional, Bhola, Nina, additional, and Watson, James E.M., additional

Published
2020
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48. Net positive outcomes for nature

Author

Bull, Joseph W., primary, Milner-Gulland, E. J., additional, Addison, Prue F. E., additional, Arlidge, William N. S., additional, Baker, Julia, additional, Brooks, Thomas M., additional, Burgass, Michael J., additional, Hinsley, Amy, additional, Maron, Martine, additional, Robinson, John G., additional, Sekhran, Nik, additional, Sinclair, Samuel P., additional, Stuart, Simon N., additional, zu Ermgassen, Sophus O. S. E., additional, and Watson, James E. M., additional

Published
2019
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