5 results on '"Clark, V. Ralph"'
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2. Focus Issue : Pastoralism and Rangelands in Mountains
- Author
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Azevedo, João C., Clark, V. Ralph, Millar, Joanne, Mukwada, Geofrey, Postigo, Julio C., Wurzinger, Maria, and Mathez-Stiefel, Sarah-Lan
- Published
- 2021
3. Africa's First Alpine and Transboundary Long-Term Socioecological Research Platform.
- Author
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Kotzé, Jaco, van Tol, Johan, and Clark, V. Ralph
- Abstract
The austrotemperate alpine system of southern Africa's Maloti–Drakensberg is the only alpine system south of Mount Kilimanjaro, making it unique on the continent. With a difference in elevation of only 300–600 m and characterized by an undulating Gondwanan mature erosional land surface plateau around 2865–3500 masl, it is threatened by unsustainable land uses and climate change. To better understand these challenges, the Afromontane Research Unit of the University of the Free State, South Africa, is setting up the 1200 km
2 Mont-Aux-Sources Long-Term Socio-Ecological Research (LTSER) platform. It is the first alpine-focused, long-term monitoring protocol implemented in the Maloti–Drakensberg. Straddling the border between South Africa and Lesotho, it is also the only alpine and transboundary LTSER area in Africa. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
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4. Think globally, measure locally : The MIREN standardized protocol for monitoring plant species distributions along elevation gradients
- Author
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Haider, Sylvia, Lembrechts, Jonas J., McDougall, Keith, Pauchard, Aníbal, Alexander, Jake M., Barros, Agustina, Cavieres, Lohengrin A., Rashid, Irfan, Rew, Lisa J., Aleksanyan, Alla, Arévalo, José R., Aschero, Valeria, Chisholm, Chelsea, Clark, V. Ralph, Clavel, Jan, Daehler, Curtis, Dar, Pervaiz A., Dietz, Hansjörg, Dimarco, Romina D., Edwards, Peter, Essl, Franz, Fuentes-Lillo, Eduardo, Guisan, Antoine, Gwate, Onalenna, Hargreaves, Anna L., Jakobs, Gabi, Jiménez, Alejandra, Kardol, Paul, Kueffer, Christoph, Larson, Christian, Lenoir, Jonathan, Lenzner, Bernd, Padrón Mederos, Miguel A., Mihoc, Maritza, Milbau, Ann, Morgan, John W., Müllerová, Jana, Naylor, Bridgett J., Nijs, Ivan, Nuñez, Martin A., Otto, Rüdiger, Preuk, Niels, Ratier Backes, Amanda, Reshi, Zafar A., Rumpf, Sabine B., Sandoya, Verónica, Schroder, Mellesa, Speziale, Karina L., Urbach, Davnah, Valencia, Graciela, Vandvik, Vigdis, Vitková, Michaela, Vorstenbosch, Tom, Walker, Tom W. N., Walsh, Neville, Wright, Genevieve, Zong, Shengwei, Seipel, Tim, Haider, Sylvia, Lembrechts, Jonas J., McDougall, Keith, Pauchard, Aníbal, Alexander, Jake M., Barros, Agustina, Cavieres, Lohengrin A., Rashid, Irfan, Rew, Lisa J., Aleksanyan, Alla, Arévalo, José R., Aschero, Valeria, Chisholm, Chelsea, Clark, V. Ralph, Clavel, Jan, Daehler, Curtis, Dar, Pervaiz A., Dietz, Hansjörg, Dimarco, Romina D., Edwards, Peter, Essl, Franz, Fuentes-Lillo, Eduardo, Guisan, Antoine, Gwate, Onalenna, Hargreaves, Anna L., Jakobs, Gabi, Jiménez, Alejandra, Kardol, Paul, Kueffer, Christoph, Larson, Christian, Lenoir, Jonathan, Lenzner, Bernd, Padrón Mederos, Miguel A., Mihoc, Maritza, Milbau, Ann, Morgan, John W., Müllerová, Jana, Naylor, Bridgett J., Nijs, Ivan, Nuñez, Martin A., Otto, Rüdiger, Preuk, Niels, Ratier Backes, Amanda, Reshi, Zafar A., Rumpf, Sabine B., Sandoya, Verónica, Schroder, Mellesa, Speziale, Karina L., Urbach, Davnah, Valencia, Graciela, Vandvik, Vigdis, Vitková, Michaela, Vorstenbosch, Tom, Walker, Tom W. N., Walsh, Neville, Wright, Genevieve, Zong, Shengwei, and Seipel, Tim
- Abstract
Climate change and other global change drivers threaten plant diversity in mountains worldwide. A widely documented response to such environmental modifications is for plant species to change their elevational ranges. Range shifts are often idiosyncratic and difficult to generalize, partly due to variation in sampling methods. There is thus a need for a standardized monitoring strategy that can be applied across mountain regions to assess distribution changes and community turnover of native and non-native plant species over space and time. Here, we present a conceptually intuitive and standardized protocol developed by the Mountain Invasion Research Network (MIREN) to systematically quantify global patterns of native and non-native species distributions along elevation gradients and shifts arising from interactive effects of climate change and human disturbance. Usually repeated every five years, surveys consist of 20 sample sites located at equal elevation increments along three replicate roads per sampling region. At each site, three plots extend from the side of a mountain road into surrounding natural vegetation. The protocol has been successfully used in 18 regions worldwide from 2007 to present. Analyses of one point in time already generated some salient results, and revealed region-specific elevational patterns of native plant species richness, but a globally consistent elevational decline in non-native species richness. Non-native plants were also more abundant directly adjacent to road edges, suggesting that disturbed roadsides serve as a vector for invasions into mountains. From the upcoming analyses of time series, even more exciting results can be expected, especially about range shifts. Implementing the protocol in more mountain regions globally would help to generate a more complete picture of how global change alters species distributions. This would inform conservation policy in mountain ecosystems, where some conservation policies remain poorly im
- Published
- 2022
5. Think globally, measure locally: The MIREN standardized protocol for monitoring plant species distributions along elevation gradients
- Author
-
Haider, Sylvia, primary, Lembrechts, Jonas J., additional, McDougall, Keith, additional, Pauchard, Aníbal, additional, Alexander, Jake M., additional, Barros, Agustina, additional, Cavieres, Lohengrin A., additional, Rashid, Irfan, additional, Rew, Lisa J., additional, Aleksanyan, Alla, additional, Arévalo, José R., additional, Aschero, Valeria, additional, Chisholm, Chelsea, additional, Clark, V. Ralph, additional, Clavel, Jan, additional, Daehler, Curtis, additional, Dar, Pervaiz A., additional, Dietz, Hansjörg, additional, Dimarco, Romina D., additional, Edwards, Peter, additional, Essl, Franz, additional, Fuentes‐Lillo, Eduardo, additional, Guisan, Antoine, additional, Gwate, Onalenna, additional, Hargreaves, Anna L., additional, Jakobs, Gabi, additional, Jiménez, Alejandra, additional, Kardol, Paul, additional, Kueffer, Christoph, additional, Larson, Christian, additional, Lenoir, Jonathan, additional, Lenzner, Bernd, additional, Padrón Mederos, Miguel A., additional, Mihoc, Maritza, additional, Milbau, Ann, additional, Morgan, John W., additional, Müllerová, Jana, additional, Naylor, Bridgett J., additional, Nijs, Ivan, additional, Nuñez, Martin A., additional, Otto, Rüdiger, additional, Preuk, Niels, additional, Ratier Backes, Amanda, additional, Reshi, Zafar A., additional, Rumpf, Sabine B., additional, Sandoya, Verónica, additional, Schroder, Mellesa, additional, Speziale, Karina L., additional, Urbach, Davnah, additional, Valencia, Graciela, additional, Vandvik, Vigdis, additional, Vitková, Michaela, additional, Vorstenbosch, Tom, additional, Walker, Tom W. N., additional, Walsh, Neville, additional, Wright, Genevieve, additional, Zong, Shengwei, additional, and Seipel, Tim, additional
- Published
- 2022
- Full Text
- View/download PDF
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