Rhagolwg
Gwybodaeth Cyswllt
Cymwysterau
- Profesiynol: Fellow of the Higher Education Academy
Higher Education Academy, 2021–2021 - PhD: Population viability and conservation of Grey Parrots on the island of Príncipe, Gulf of Guinea
MMU, 2012–2015 - MSc: Effects of disturbance and fragmentation on avian community on Afrotropical montane rainforest of the Albertine Rift
College of Life and Environmental Sciences, University of Exeter, Penryn Campus, Penryn, 9 TR10 9EZ, UK., 2009–2010 - BSc: Composition, phenology, and distribution of the avifauna of the Sabaki, River Mouth, Malindi, Kenya
University La Sapienza of Rome, 2007
Addysgu ac Arolygiaeth
I am course director for the degrees Environmental Conservation (D447/448) and Applied Terrestrial and Marine Ecology (C180/183).
I teach the modules:
DXX-2009: Conservation Practice
DXX-4016: Conservation Science
BNS-3000: Wildlife Ecology and Conservation
DXX-2012: Field Course on Conservation Conflicts
Cyfleoedd Project Ôl-radd
Conservation ecology of birds in low-income countries especially in the Afrotropics.
Population dynamics and methods for population estimates and monitoring.
Cyhoeddiadau
2025
- E-gyhoeddi cyn argraffuHeightened extinction risk due to tropical cyclones in insular biodiversity hotspots
Valle, S., Pereira, D., Matthews, T. J. & Martin, T., 1 Gorff 2025, Yn: Biological Conservation. 307, 111184.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2024
- CyhoeddwydA review of bovine tuberculosis transmission risk in European wildlife communities
Justus, W., Valle, S., Barton, O., Gresham, A. & Shannon, G., 1 Maw 2024, Yn: Mammal Review. 54, 3, t. 325-340 16 t.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid - CyhoeddwydDeveloping a method for assessing the relative abundance of red squirrels in low-density populations
Shannon, G., Barton, O., Valle, S. & Shuttleworth, C., 1 Tach 2024, 34 t.
Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn
2023
- CyhoeddwydCapturing red squirrels (Sciurus vulgaris) on camera: A cost-effective approach for monitoring relative abundance and habitat preference
Shannon, G., Valle, S. & Shuttleworth, C., 3 Hyd 2023, Yn: Ecology and Evolution. 13, 10, e10536.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2021
- CyhoeddwydRecalibrating Risk: Implications of squirrelpox virus for successful red squirrel translocations within mainland UK
Shuttleworth, C., Brady, D., Cross, P., Gardner, L., Greenwood, A., Jackson, N., McKinney, C., Robinson, N., Trotter, S., Valle, S., Wood, K. & Hayward, M., Chwef 2021, Yn: Conservation Science and Practice. 3, 2, e321.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid - CyhoeddwydWhat can the abundance of Grey Parrots on Príncipe Island tell us about large parrot conservation?
Valle, S., Collar, N. J., Melo, M. & Marsden, S. J., 2021, Yn: Journal of Tropical Ecology. 36, 6, t. 293- 297
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2020
- CyhoeddwydLow abundance of the Endangered timneh parrot Psittacus timneh in one of its presumed strongholds
Valle, S., Collar, N., Barca, B., Dauda, P. & Marsden, S., Ion 2020, Yn: Oryx. 54, 1, t. 74-76 3 t.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2018
- CyhoeddwydTrapping method and quota observance are pivotal to population stability in a harvested parrot
Valle, S., Collar, N., W. Edwin, H. & Marsden, S., Ion 2018, Yn: Biological Conservation. 217, t. 428-436
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2017
- CyhoeddwydSpatial and seasonal variation in abundance within an insular grey parrot population
Valle, S., Collar, N. J., Harris, W. E. & Marsden, S. J., Rhag 2017, Yn: African Journal of Ecology. 55, 4, t. 433-442
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2016
- CyhoeddwydPopulation estimates of the breeding birds of the Tinhosas Islands (Gulf of Guinea), the only major seabird colony of the Eastern Tropical Atlantic
Valle, S., Barros, N., Ramirez, I. & Wanless, R. M., 2016, Yn: Ostrich - Journal of African Ornithology. 87, 3, t. 209-215
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2015
- CyhoeddwydUsing encounter rates as surrogates for density estimates makes monitoring of heavily-traded grey parrots achievable across Africa
Marsden, S. J., Loqueh, E., Takuo, J. M., Hart, J. A., Abani, R., Ahon, D. B., Annorbah, N. N. D., Johnson, R. & Valle, S., 2015, Yn: Oryx. 50, 4, t. 617-625
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
2014
- CyhoeddwydInternational Action Plan For conservation of Critically Endangered birds on São Tomé
BirdLife International, Ndang'ang'a, P. K. (Golygydd), Ward-Francis, A. (Golygydd), Costa, L. (Golygydd), Valle, S. (Golygydd), Lima, R. (Golygydd), Palmeirim, J. (Golygydd), Tavares, J. (Golygydd), Buchanan, G. (Golygydd), Carvalho, M. (Golygydd), de Melo, M. (Golygydd) & Dallimer, M. (Golygydd), 2014, BirdLife International, Cambridge, UK. 26 t.
Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn - CyhoeddwydResearch and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities
Martin, R. O., Perrin, M. R., Boyes, R. S., Abebe, Y. D., Annorbah, N. D., Asamoah, A., Bizimana, D., Bobo, K. S., Bunbury, N., Brouwer, J., Diop, M. S., Ewnetu, M., Fotso, R. C., Garteh, J., Hall, P., Holbech, L. H., Madindou, I. R., Maisels, F., Mokoko, J. & Mulwa, R. & 7 eraill, , 2014, Yn: Ostrich: Journal of African Ornithology. 85, 3, t. 205-233
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid - CyhoeddwydSingle Species Action Plan for the conservation of the Príncipe Thrush Turdus xanthorhynchus.
BirdLife International, Ndang'ang'a, P. K. (Golygydd), de Melo, M. (Golygydd), Lima, R. (Golygydd), Costa, L. (Golygydd), Buchanan, G. (Golygydd), Dallimer, M. (Golygydd), Tavares, J. (Golygydd), Valle, S. (Golygydd) & Ward-Francis, A. (Golygydd), 2014, BirdLife International, Cambridge, UK. 14 t.
Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn - CyhoeddwydStatus and trends of the seabirds breeding at Tinhosa Grande Island, São Tomé e Príncipe
Valle, S., Barros, N. & Wanless, R., 2014, BirdLife International, Cambridge, UK. 27 t.
Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn
2013
- CyhoeddwydA protocol to allow density estimation and monitoring of the heavily traded grey parrots across their huge African ranges
Marsden, S. J., Loqueh, E., Takuo, J. M., Hart, J. A., Abani, R., Ahon, D. B., Showers, C., Annorbah, N., Johnson, R. & Valle, S., 2013, Strengthening Capacity for Monitoring and Regulation of International Trade of African Grey Parrot. CITES Secretariat (gol.). CITES Secretariat, t. 1-18
Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
2012
- CyhoeddwydSeasonal changes in abundances of waterbirds at Sabaki River Mouth (Malindi, Kenya), a key stopover site on the West Asian-East African Flyway
Valle, S., Boitani, L. & Maclean, I. M. D., 2012, Yn: Ostrich: Journal of African Ornithology. 83, 1, t. 19-26
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
Gweithgareddau
2022
- Using remote activated cameras to estimate relative abundance and habitat preference of red squirrels
Population estimates are essential for the conservation of wildlife. However, accurate estimates can be labour-intensive, particularly for small and medium-sized mammals where capture and handling of individuals is often required. Our study aimed to provide a robust and standardised method of determining red squirrel abundance using remotely activated cameras, while also quantifying how red squirrel abundance relates to key habitat characteristics. Fifty sample points were selected in four habitat categories in forests across Anglesey. We found a strong correlation (r = 0.78) between the number of red squirrels live-trapped over ten-days with the number of camera images recorded during a five-day period. Red squirrel abundance was negatively related to stand canopy openness, while the presence of Scots pine and increased tree species diversity were positively related to squirrel abundance. Our results demonstrate that remotely activated cameras can provide a suitable tool for surveying red squirrel abundance and guiding habitat management.
19 Rhag 2022
Gweithgaredd: Cyflwyniad llafar (Siaradwr) - IUCN Conservation Planning Specialist Group (Sefydliad allanol)
2022
Gweithgaredd: Aelodaeth o rwydwaith (Aelod)
2019
- External Examiner at the Periodic Programme Review of the Graduate Certificate in Endangered Species Management provided by Durrell Conservation Academy (Durrell Wildlife Conservation Trust)
21 Maw 2019 – 22 Maw 2019
Gweithgaredd: Ymgynghoriad (Ymgynghorydd)
2018
- 2007 Wader Study Group Conference
26 Gorff 2018
Gweithgaredd: Sgwrs wadd (Siaradwr) - Timneh Parrot Psittacus timneh population monitoring
26 Ebr 2018
Gweithgaredd: Cymryd rhan mewn gweithdy, seminar, cwrs Academaidd (Siaradwr) - Timneh Parrot Psittacus timneh population monitoring
21 Maw 2018 – 23 Maw 2018
Gweithgaredd: Cymryd rhan mewn gweithdy, seminar, cwrs Academaidd (Siaradwr)