Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Tobias Landmann"'
Autor:
Grace Rebecca Aduvukha, Elfatih M. Abdel-Rahman, Bester Tawona Mudereri, Arthur W. Sichangi, Godfrey Ouma Makokha, H. Michael G. Lattorff, Samira A. Mohamed, Tobias Landmann, Henri E. Z. Tonnang, Thomas Dubois
Publikováno v:
GIScience & Remote Sensing, Vol 61, Iss 1 (2024)
ABSTRACTFlower-visiting insects that are pollinators play a critical role in promoting biodiversity in agroecosystems and agricultural food production through their pollination ecosystem service. However, several factors affect the survival of these
Externí odkaz:
https://doaj.org/article/4bd90dc6563f4cbd86e8128ac8bacaea
Autor:
Bonoukpoè Mawuko Sokame, Komi Mensah Agboka, Emily Kimathi, Bester Tawona Mudereri, Elfatih M. Abdel‐Rahman, Tobias Landmann, Mwesigwa Moses Rwaheru, Osman Abdalla, Moses M. Mafabi, Louis Mitondo Lubango, Henri E. Z. Tonnang
Publikováno v:
Earth's Future, Vol 12, Iss 4, Pp n/a-n/a (2024)
Abstract Desert locust (Schistocerca gregaria) infestations cause significant damage to crops and pastureland, impeding food security and livelihoods globally. In recent years, some East African countries have suffered severe desert locust outbreaks,
Externí odkaz:
https://doaj.org/article/93a2a07b38b84ccb8fb3b81da48d1153
Autor:
David Masereti Makori, Elfatih M. Abdel-Rahman, John Odindi, Onisimo Mutanga, Tobias Landmann, Henri E.Z. Tonnang
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 128, Iss , Pp 103738- (2024)
Bee farming and beehealth are threatened by climate change, agricultural and agrochemicals intensification, and bee pests and diseases. Among these threats, bee pests have particularly been identified as a major obstacle to beehealth. Although previo
Externí odkaz:
https://doaj.org/article/fc44802e71094ed18d22965188335ff5
Autor:
Tobias Landmann, Michael Schmitt, Burak Ekim, Jandouwe Villinger, Faith Ashiono, Jan C. Habel, Henri E. Z. Tonnang
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-11 (2023)
Abstract Reliable metrics to monitor human impacts on biodiversity are essential for informing conservation policy. As insects are indicators of global change, whose declines profoundly affect ecosystems, insect diversity may predict biodiversity sta
Externí odkaz:
https://doaj.org/article/fbfa029a81754d3dafc8c5c6236883ae
Autor:
David Masereti Makori, Elfatih M. Abdel-Rahman, Nelly Ndungu, John Odindi, Onisimo Mutanga, Tobias Landmann, Henri E. Z. Tonnang, Nkoba Kiatoko
Publikováno v:
GIScience & Remote Sensing, Vol 59, Iss 1, Pp 648-669 (2022)
Stingless/meliponine bees are eusocial insects whose polylactic nature enables interaction with a wide variety of wild plants and crops that enhance pollination and, hence, support ecosystem services. However, their true potential regarding pollinati
Externí odkaz:
https://doaj.org/article/0705904848384f83aacc909c581f3906
Autor:
Hossein Jafari Jozani, Michael Thiel, Elfatih Mohamed Abdel-Rahman, Kyalo Richard, Tobias Landmann, Sevgan Subramanian, Michael Hahn
Publikováno v:
Geology, Ecology, and Landscapes, Vol 0, Iss 0, Pp 1-16 (2020)
Spatiotemporal information on crops and cropping systems can provide useful insights into disease outbreak mechanisms in croplands. In September 2011, a severe outbreak of Maize Lethal Necrosis (MLN) disease was reported in Bomet County, Kenya. We ai
Externí odkaz:
https://doaj.org/article/06b361bbf62245f19942861fca7e3580
Autor:
Bester Tawona Mudereri, Elfatih Mohamed Abdel-Rahman, Timothy Dube, Tobias Landmann, Zeyaur Khan, Emily Kimathi, Rachel Owino, Saliou Niassy
Publikováno v:
GIScience & Remote Sensing, Vol 57, Iss 4, Pp 553-571 (2020)
Monitoring of destructive invasive weeds such as those from the genus Striga requires accurate, near real-time predictions and integrated assessment techniques to enable better surveillance and consistent assessment initiatives. Thus, in this study,
Externí odkaz:
https://doaj.org/article/0afdc39e71854ab1a910340d79e87532
Autor:
Maximilian Schwarz, Tobias Landmann, Damien Jusselme, Eduardo Zambrano, Jens Danzeglocke, Florian Siegert, Jonas Franke
Publikováno v:
Remote Sensing, Vol 14, Iss 5, p 1109 (2022)
Increasing conflicts between farmers and pastoralists continue to be a major challenge in the Sahel. Political and social factors are in tandem important underlying determinants for conflicts in the region, which are amplified by the variability and
Externí odkaz:
https://doaj.org/article/96bb437fe86d4a2bb7dd7c9dfa35ef86
Autor:
Bester Tawona Mudereri, Timothy Dube, Saliou Niassy, Emily Kimathi, Tobias Landmann, Zeyaur Khan, Elfatih M. Abdel-Rahman
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 85, Iss , Pp 102008- (2020)
The invasion by Striga in most cereal crop fields in Africa has posed a significant threat to food security and has caused substantial socioeconomic losses. Hyperspectral remote sensing is an effective means to discriminate plant species, providing p
Externí odkaz:
https://doaj.org/article/fa001762e0ca43efbee3202b8cea24db
Suitability of resampled multispectral datasets for mapping flowering plants in the Kenyan savannah.
Autor:
David Masereti Makori, Elfatih M Abdel-Rahman, Tobias Landmann, Onisimo Mutanga, John Odindi, Evelyn Nguku, Henry E Tonnang, Suresh Raina
Publikováno v:
PLoS ONE, Vol 15, Iss 9, p e0232313 (2020)
Pollination services and honeybee health in general are important in the African savannahs particularly to farmers who often rely on honeybee products as a supplementary source of income. Therefore, it is imperative to understand the floral cycle, ab
Externí odkaz:
https://doaj.org/article/1278bf57d4404e57bb6199d4e8a11588