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326 results on '"Gereau, Roy E."'

2. Inequitable Gains and Losses from Conservation in a Global Biodiversity Hotspot

Author

Platts, Philip J., Schaafsma, Marije, Turner, R. Kerry, Burgess, Neil D., Fisher, Brendan, Mbilinyi, Boniface P., Munishi, Pantaleo K. T., Ricketts, Taylor H., Swetnam, Ruth D., Ahrends, Antje, Ashagre, Biniam B., Bayliss, Julian, Gereau, Roy E., Green, Jonathan M. H., Green, Rhys E., Jeha, Lena, Lewis, Simon L., Marchant, Rob, Marshall, Andrew R., Morse-Jones, Sian, Mwakalila, Shadrack, Njana, Marco A., Shirima, Deo D., Willcock, Simon, and Balmford, Andrew

Published
2023
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11. Nature Forest Reserves in Tanzania and their importance for conservation

Author

Ract, Claire, Burgess, Neil D., Dinesen, Lars, Sumbi, Peter, Malugu, Isaac, Latham, Julia, Anderson, Lucy, Gereau, Roy E., de Lima, Marcelo Gonçalves, Akida, Amina, Nashanda, Evarist, Shabani, Zainabu, Tango, Yusuph, Mteleka, Someni, Silayo, Dos Santos, Mwangi, Juma, Lyatuu, Gertrude, Platts, Philip J., Rovero, Francesco, Ract, Claire, Burgess, Neil D., Dinesen, Lars, Sumbi, Peter, Malugu, Isaac, Latham, Julia, Anderson, Lucy, Gereau, Roy E., de Lima, Marcelo Gonçalves, Akida, Amina, Nashanda, Evarist, Shabani, Zainabu, Tango, Yusuph, Mteleka, Someni, Silayo, Dos Santos, Mwangi, Juma, Lyatuu, Gertrude, Platts, Philip J., and Rovero, Francesco

Abstract

Since 1997 Tanzania has undertaken a process to identify and declare a network of Nature Forest Reserves (NFRs) with high biodiversity values, from within its existing portfolio of national Forest Reserves, with 16 new NFRs declared since 2015. The current network of 22 gazetted NFRs covered 948,871 hectares in 2023. NFRs now cover a range of Tanzanian habitat types, including all main forest types—wet, seasonal, and dry—as well as wetlands and grasslands. NFRs contain at least 178 of Tanzania’s 242 endemic vertebrate species, of which at least 50% are threatened with extinction, and 553 Tanzanian endemic plant taxa (species, subspecies, and varieties), of which at least 50% are threatened. NFRs also support 41 single-site endemic vertebrate species and 76 single-site endemic plant taxa. Time series analysis of management effectiveness tracking tool (METT) data shows that NFR management effectiveness is increasing, especially where donor funds have been available. Improved management and investment have resulted in measurable reductions of some critical threats in NFRs. Still, ongoing challenges remain to fully contain issues of illegal logging, charcoal production, firewood, pole-cutting, illegal hunting and snaring of birds and mammals, fire, wildlife trade, and the unpredictable impacts of climate change. Increased tourism, diversified revenue generation and investment schemes, involving communities in management, and stepping up control measures for remaining threats are all required to create a network of economically self-sustaining NFRs able to conserve critical biodiversity values., Since 1997 Tanzania has undertaken a process to identify and declare a network of Nature Forest Reserves (NFRs) with high biodiversity values, from within its existing portfolio of national Forest Reserves, with 16 new NFRs declared since 2015. The current network of 22 gazetted NFRs covered 948,871 hectares in 2023. NFRs now cover a range of Tanzanian habitat types, including all main forest types-wet, seasonal, and dry-as well as wetlands and grasslands. NFRs contain at least 178 of Tanzania's 242 endemic vertebrate species, of which at least 50% are threatened with extinction, and 553 Tanzanian endemic plant taxa (species, subspecies, and varieties), of which at least 50% are threatened. NFRs also support 41 single-site endemic vertebrate species and 76 single-site endemic plant taxa. Time series analysis of management effectiveness tracking tool (METT) data shows that NFR management effectiveness is increasing, especially where donor funds have been available. Improved management and investment have resulted in measurable reductions of some critical threats in NFRs. Still, ongoing challenges remain to fully contain issues of illegal logging, charcoal production, firewood, pole-cutting, illegal hunting and snaring of birds and mammals, fire, wildlife trade, and the unpredictable impacts of climate change. Increased tourism, diversified revenue generation and investment schemes, involving communities in management, and stepping up control measures for remaining threats are all required to create a network of economically self-sustaining NFRs able to conserve critical biodiversity values.

Published
2024

12. Dynamics of tree stems and biomass in old‐growth and secondary forests along gradients in liana dominance, elevation and soil.

Author

Ngute, Alain Senghor K., Pfeifer, Marion, Schoeman, David S., Gereau, Roy E., Mnendendo, Hamidu R., Lyatuu, Herman M., Seki, Hamidu A., Shirima, Deo D., and Marshall, Andrew R.

Subjects
SECONDARY forests, BIOMASS, TROPICAL forests, LIANAS, TREE growth, BIOMASS conversion
Abstract

Copyright of Journal of Ecology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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13. In defense of the primacy of the Nomenclature Section in decision‐making in botanical nomenclature: A reply to the Rapporteurs' comment on Proposal 193 to amend the Shenzhen Code.

Author

Moore, Gerry, Smith, Gideon F., Figueiredo, Estrela, Landrum, Leslie R., Gereau, Roy E., Prado, Jefferson, Demissew, Sebsebe, Applequist, Wendy, Quintanar, Alejandro, Fortunato, Renée, Freire‐Fierro, Alina, Wen, Jun, and Deng, Yun‐Fei

Subjects
BOTANICAL nomenclature, DECISION making, BY-laws, ONLINE comments
Abstract

A response is provided to the Rapporteurs' comments on Proposal 193 to amend the Shenzhen Code. If adopted, Prop. 193 would amend Div. III, Prov. 5 of the Code so as to require a simple majority to approve—as opposed to the current 60% majority to reject (and thus 40% + 1 vote to approve)—General Committee recommendations on conservation, protection, or rejection of names, suppression of works, and binding decisions. We regard the requirement of a simple majority in the affirmative to approve recommendations of the General Committee to be the fairest and most easily understood procedure available. It is also one that is consistent with the compromise worked out and published in 2016 by the Special Committee on By‐laws that reported to the Nomenclature Section at Shenzhen and would restore the procedure used at all nomenclature sections prior to the Nomenclature Section at Vienna in 2005. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Nature Forest Reserves in Tanzania and their importance for conservation

Author

Ract, Claire, primary, Burgess, Neil D., additional, Dinesen, Lars, additional, Sumbi, Peter, additional, Malugu, Isaac, additional, Latham, Julia, additional, Anderson, Lucy, additional, Gereau, Roy E., additional, Gonçalves de Lima, Marcelo, additional, Akida, Amina, additional, Nashanda, Evarist, additional, Shabani, Zainabu, additional, Tango, Yusuph, additional, Mteleka, Someni, additional, Santos Silayo, Dos, additional, Mwangi, Juma, additional, Lyatuu, Gertrude, additional, Platts, Philip J., additional, and Rovero, Francesco, additional

Published
2024
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15. Biodiversity status and trends in the Eastern Arc Mountains and coastal forests of Kenya and Tanzania region, 2008-2013 /

Author

Gereau, Roy E., Kariuki, Mercy, Muoria, Paul, Ndang'ang'a, Paul K., Werema, Chacha, BirdLife International. Africa Partnership Secretariat, Missouri Botanical Garden, Peter H. Raven Library, Gereau, Roy E., Kariuki, Mercy, Muoria, Paul, Ndang'ang'a, Paul K., Werema, Chacha, and BirdLife International. Africa Partnership Secretariat

Subjects
Biodiversity, Coast Province, Eastern Arc Mountains (Tanzania and Kenya), Kenya, Monitoring, Natural history, Pwani Region, Tanzania
Published
2014

18. Studies in Neotropical Araliaceae. I. Resurrection of the genus Sciodaphyllum P. Browne to accommodate most New World species previously included in Schefflera J. R. Forst. & G. Forst.

Author

Lowry II, Porter P., Plunkett, Gregory M., Mora, M. Marcela, Cano, Asunción, Fiaschi, Pedro, Frodin, David G., Gereau, Roy E., Idárraga-Piedrahíta, Álvaro, Jiménez-Montoya, Jáider, Mendoza, J. Moisés F., Neill, David A., Rivera-Diaz, Orlando, and Rodrigues-Vaz, Carlos

Published
2020
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39. A TAXONOMIC ACCOUNT OF MUCUNA (LEGUMINOSAE-PAPILIONOIDEAE) IN AFRICA, MADAGASCAR, AND THE INDIAN OCEAN ISLANDS, WITH COMMENTS ON ITS BIOGEOGRAPHIC HISTORY.

Author

Moura, Tania M., Gereau, Roy E., Cardoso, Domingos, and Lewis, Gwilym P.

Subjects
ONLINE databases, ENDEMIC species, LEGUMES, HERBARIA, PHYLOGENY
Abstract

A taxonomic account of the papilionoid legume genus Mucuna Adans. in Africa, Madagascar, and the Indian Ocean islands is presented. Fifteen large herbaria that host representative collections of African specimens were visited and online databases consulted. A new phylogenetic analysis is also presented. Nineteen taxa are described and mapped. Twelve species and six infraspecific taxa (including autonyms, thus 15 terminal taxa) of Mucuna are present on the African mainland, where three species are representatives of Mucuna subg. Mucuna and the other nine are members of Mucuna subg. Stizolobium (P. Browne) Baker. In the Madagascar and Indian Ocean islands biodiversity hotspot, Mucuna is represented by six species, two of which (M. gigantea (Willd.) DC. and M. pruriens (L.) DC.) also occur on the African mainland. The other four species are endemic to Madagascar or adjacent islands and are representatives of Mucuna subg. Mucuna. The only representative of Mucuna subg. Stizolobium in Madagascar is M. pruriens. Our study suggests that the African mainland is the center of origin of Mucuna subg. Stizolobium. It is also revealed as the world's most species-rich region in representatives of this subgenus, whereas on the other continents, subgenus Mucuna is the most diverse. [ABSTRACT FROM AUTHOR]

Published
2024
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43. Topography-driven isolation, speciation and a global increase of endemism with elevation

Author

Steinbauer, Manuel J., Field, Richard, Grytnes, John-Arvid, Trigas, Panayiotis, Ah-Peng, Claudine, Attorre, Fabio, Birks, H. John B., Borges, Paulo A. V., Cardoso, Pedro, Chou, Chang-Hung, De Sanctis, Michele, de Sequeira, Miguel M., Duarte, Maria C., Elias, Rui B., Fernández-Palacios, José María, Gabriel, Rosalina, Gereau, Roy E., Gillespie, Rosemary G., Greimler, Josef, Harter, David E. V., Huang, Tsurng-Juhn, Irl, Severin D. H., Jeanmonod, Daniel, Jentsch, Anke, Jump, Alistair S., Kueffer, Christoph, Nogué, Sandra, Otto, Rüdiger, Price, Jonathan, Romeiras, Maria M., Strasberg, Dominique, Stuessy, Tod, Svenning, Jens-Christian, Vetaas, Ole R., and Beierkuhnlein, Carl

Published
2016

44. Report of the Special Committee on By-laws for the Nomenclature Section

Author

Knapp, Sandra, Turland, Nicholas J., Barkworth, Mary E., Barrie, Fred R., Fortunato, Renée H., Gandhi, Kanchi, Gereau, Roy E., Greuter, Werner, Herendeen, Patrick S., Landrum, Leslie R., Mabberley, David J., Marhold, Karol, May, Tom W., Moore, Gerry, Rico Arce, Lourdes, Smith, Gideon F., Thiele, Kevin, and Zhang, Li

Published
2016

45. (286) Proposal to replace Division III of the International Code of Nomenclature for algae, fungi, and plants

Author

Special Committee on By-laws for the Nomenclature Section, Knapp, Sandra, Turland, Nicholas J., Barkworth, Mary E., Barrie, Fred R., Fortunato, Renée H., Gandhi, Kanchi, Gereau, Roy E., Greuter, Werner, Herendeen, Patrick S., Landrum, Leslie R., Mabberley, David J., Marhold, Karol, May, Tom W., Moore, Gerry, Rico Arce, Lourdes, Smith, Gideon F., Thiele, Kevin, and Zhang, Li

Published
2016

48. Nature Forest Reserves in Tanzania and their importance for conservation

Author

Ract, Claire, primary, Burgess, Neil D., additional, Dinesen, Lars, additional, Sumbi, Peter, additional, Malugu, Isaac, additional, Latham, Julia, additional, Anderson, Lucy, additional, Gereau, Roy E., additional, de Lima, Marcelo Gonçalves, additional, Akida, Amina, additional, Nashanda, Evarist, additional, Lyatuu, Gertrude, additional, Platts, Phil, additional, and Rovero, Francesco, additional

Published
2023
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50. (193) Proposal to democratize aspects of the governance of the International Code of Nomenclature for algae, fungi, and plants

Author

Smith, Gideon F., primary, Figueiredo, Estrela, additional, Moore, Gerry, additional, Landrum, Leslie R., additional, Gereau, Roy E., additional, Prado, Jefferson, additional, Demissew, Sebsebe, additional, Applequist, Wendy, additional, Quintanar, Alejandro, additional, Fortunato, Renée, additional, Freire‐Fierro, Alina, additional, Wen, Jun, additional, and Deng, Yun‐Fei, additional

Published
2022
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