Dr Rob Thomas
(e/fe)

D.Phil.

Uwch Lectuerer

: Ar gael fel goruchwyliwr ôl-raddedig

Ysgol y Biowyddorau

Mae fy ngrŵp ymchwil yn astudio ymddygiad anifeiliaid mewn amgylcheddau sy'n newid. Mae'r newidiadau amgylcheddol yr ydym yn eu hastudio yn amrywio o newidiadau hirdymor yn yr hinsawdd, trwy newidiadau tymhorol a dyddiol, i ymddangosiad sydyn ysglyfaethwr posibl neu fath anghyfarwydd o fwyd. Mae'r gwaith hwn yn dod o dan bedwar prif bennawd, er bod digon o orgyffwrdd rhwng y pynciau hyn.

Bioleg newid hinsawdd

Canolbwyntio ar systemau astudio mawr sy'n defnyddio adar mudol fel bio-ddangosyddion sensitif o newidiadau sy'n cael eu gyrru gan yr hinsawdd mewn perthnasoedd troffig.

Y Storm Petrels –y lleiaf o adar y môr, gan dreulio'r rhan fwyaf o'u bywydau ar y cefnfor agored. Mae ein hastudiaethau'n cynnwys gwaith ar Storm Petrel Ewrop, Storm Petrel Leach, a chymhlethdod rhywogaethau Storm Petrel y Band, gan gynnwys poblogaethau/rhywogaethau ar wahân yn yr Azores a St Helena. Yn 2024 cyhoeddais fonograff ar The Storm-petrels, a gyhoeddwyd gan Bloomsbury ar gael yma.
Gwenithfaen y Gogledd –rhywogaeth ucheldirol gyda'r mudo traws-gefnforol mwyaf eithafol o unrhyw aderyn caneuon
Warblers Reed Bed-bed (Reed Warblers a Sedge Warblers) - pâr o ymfudwyr congenerig gyda strategaethau mudo cyferbyniol
The Pied Flycatcher -aderyn caneuon sy'n dirywio'n gyflym o goetir derw Cymru
The Barn Swallow -familiar herald of summer in a rapidly changing climate
Y Nightjar Ewropeaidd - ysglyfaethwr arbenigol gwyfynod nosol

Mae sgwrs ar-lein am rai o'm hymchwil presennol ar newid hinsawdd ar gael ar Youtube.

Cyfyngiadau synhwyraidd ar ymddygiad

Dylunio llygaid mewn adar a chyfyngiadau gweledol ar ymddygiad
Effeithiau llygredd golau a sŵn ar fywyd gwyllt
Monitro acwstig awtomataidd ac adnabod galwadau echolocation ystlumod fel offeryn monitro

Ecoleg Deietegol a Chwilota

Rhyfelwch bwyd newydd mewn adar a physgod, a'i ganlyniadau esblygiadol
Rheoleiddio cronfeydd ynni mewn adar gwyllt yn strategol
Dewis deiet ac ecoleg fforio
Cyd-awdur/curadur tudalen Wicipedia ar gyfer Gwarchodaeth Ddeietegol.

Effeithiau gweithgareddau dynol ar anifeiliaid gwyllt

Effeithiau dal a thrin adar ac anifeiliaid eraill
Cadwraeth ymarferol o boblogaethau, cynefinoedd a mannau problemus bioamrywiaeth mewn byd sy'n newid - mae sgwrs ar-lein am y gwaith hwn ar gael ar dudalen Sefydliad Ymchwil Mannau Cynaliadwy
Effeithiau ecolegol eco-dwristiaeth a saethu adar gêm
Adar ysglyfaethus mewn tirweddau a addaswyd gan bobl: dyma drafodaeth podlediad am yr heriau o atal adar ysglyfaethus rhag cael eu herlid yn anghyfreithlon yn y DU (mae'r brif drafodaeth yn dechrau am 58 munud). Mae sylwebaeth ar y drafodaeth hon ar gael yma, a dyma recordiad o sgwrs am orffennol, presennol a dyfodol eryrod yng Nghymru.
Gwrthdaro eliffantod dynol yn Sabah a Sri-Lanka

Date
Type

2024

Beard, A., Thomas, R. J., Xavier, J. C., Clingham, E., Henry, L., Medeiros Mirra, R. and Hailer, F. 2024. A taste for squid: Red-billed tropicbird (Phaethon aethereus) diet in the South Atlantic. Waterbirds 47(1), pp. 1-16. (10.1675/063.047.0106)
Ranjeewa, A. D. G., Thomas, R., Weerakoon, D. K., Sandanayake, G. H. N. A. and Fernando, P. 2024. How did the elephant cross the fence? Electric fence crossing by elephants in Udawalawe, Sri Lanka. Animal Conservation (10.1111/acv.12982)
Inzani, E., Kelley, L., Thomas, R. and Boogert, N. J. 2024. Early-life diet does not affect preference for fish in herring gulls (Larus argentatus). PeerJ – the Journal of Life & Environmental Sciences 12, article number: e17565. (10.7717/peerj.17565)

2023

Beard, A. et al. 2023. Between-year and spatial variation in body condition across the breeding cycle in a pelagic seabird, the Red-billed Tropicbird. Ecology and Evolution 13(12), article number: e10743. (10.1002/ece3.10743)
Isted, G. H., Thomas, R. J., Warner, K. S., Stuber, M. J., Ellsworth, E. and Katzner, T. E. 2023. Ferruginous Hawk movements respond predictably to intra-annual variation but unexpectedly to anthropogenic habitats. Ibis: International Journal of Avian Science 165(4), pp. 1156-1168. (10.1111/ibi.13200)
Clark, B. L. et al. 2023. Global assessment of marine plastic exposure risk for oceanic birds. Nature Communications 14(1), article number: 3665. (10.1038/s41467-023-38900-z)
Beard, A., Madeiros Mirra, R., Clingham, E., Henry, L., Thomas, R. J. and Hailer, F. 2023. Breeding ecology, population size and nest site preferences of red-billed tropicbirds at St Helena, South Atlantic Ocean. Emu - Austral Ornithology 123(3), pp. 185-194. (10.1080/01584197.2023.2205595)
Medeiros Mirra, R. and Thomas, R. J. 2023. Killing me softly with your stats teaching: how much stats is too much stats?. In: Farnell, D. and Medeiros Mirra, R. eds. Teaching Biostatistics in Medicine and Allied Health Sciences. Cham, Switzerland: Springer, pp. 197–209., (10.1007/978-3-031-26010-0_14)
Medeiros Mirra, R., Vafidis, J. O., Smith, J. A. and Thomas, R. J. 2023. Teaching data analysis to life scientists using “R” statistical software: Challenges, opportunities, and effective methods. In: Medeiros Mirra, R. and Farnell, D. J. eds. Teaching Biostatistics in Medicine and Allied Health Sciences. Cham: Springer, pp. 167-187., (10.1007/978-3-031-26010-0_12)
Beard, A. et al. 2023. Increasing use of artificial nest chambers by seasonally segregated populations of band-rumped storm petrels hydrobates castro at St Helena, South Atlantic. Marine Ornithology 51(1), pp. 85-96.

2018

Vafidis, J. O., Facey, R. J., Leech, D. and Thomas, R. J. 2018. Supplemental food alters nest defence and incubation behaviour of an open-nesting wetland songbird. Journal of Avian Biology 49(8), article number: e01672. (10.1111/jav.01672)
Marples, N. M., Speed, M. P. and Thomas, R. J. 2018. An individual-based profitability spectrum for understanding interactions between predators and their prey. Biological Journal of the Linnean Society 125(1), pp. 1-13. (10.1093/biolinnean/bly088)
Williams Schwartz, A., Williams, H. F., Chadwick, E., Thomas, R. J. and Perkins, S. E. 2018. Roadkill scavenging behaviour in an urban environment. Journal of Urban Ecology 4(1), article number: juy006. (10.1093/jue/juy006)

2017

Thomas, R. J., Vafidis, J. O. and Medeiros Mirra, R. J. 2017. Climatic impacts on invertebrates as food for vertebrates. In: Jones, T. H. and Johnson, S. N. eds. Global Climate Change and Terrestrial Invertebrates. Chichester: Wiley, pp. 295-316., (10.1002/9781119070894.ch15)
Thomas, R. J., Vafidis, J. and Medeiros Mirra, R. 2017. Invertebrates as food for vertebrates. In: Johnson, S. and Jones, T. H. eds. Global Climate Change and Terrestrial Invertebrates. John Wiley & Sons, pp. 295-316.
Davison, S. P. and Thomas, R. J. 2017. Apparent spring swarming behaviour of Lesser Horseshoe Bats (Rhinolophus hipposideros). Journal of Bat Research and Conservation 10(1) (10.14709/BarbJ.10.1.2017.03)

2016

Vafidis, J., Vaughan, I. P., Jones, T. H., Facey, R., Parry, R. and Thomas, R. J. 2016. The effects of supplementary food on the breeding performance of Eurasian reed warblers Acrocephalus scirpaceus; implications for climate change impacts. PloS One 11(7), article number: e0159933. (10.1371/journal.pone.0159933)
Jones, G., Wills, A., Morgan, A. J., Thomas, R. J., Kille, P. and Novo Rodriguez, M. 2016. The worm has turned: behavioural drivers of reproductive isolation between cryptic lineages. Soil Biology & Biochemistry 98, pp. 11-17. (10.1016/j.soilbio.2016.03.015)

2015

King, R. A., Symondson, W. O. C. and Thomas, R. J. 2015. Molecular analysis of faecal samples from birds to identify potential crop pests and useful biocontrol agents in natural areas. Bulletin of Entomological Research 105(3), pp. 261-272. (10.1017/S0007485314000935)
Newman, R. C., Ellis, T., Davison, P. I., Ives, M. J., Thomas, R. J., Griffiths, S. W. and Riley, W. D. 2015. Using novel methodologies to examine the impact of artificial light at night on the cortisol stress response in dispersing Atlantic salmon (Salmo salarL.) fry. Conservation Physiology 3(1), article number: cov051. (10.1093/conphys/cov051)

2014

Vafidis, J. O., Vaughan, I. P., Jones, T. H., Facey, R. J., Parry, R. and Thomas, R. J. 2014. Habitat use and body mass regulation among warblers in the Sahel Region during the non-breeding season. PLoS ONE 9(11), article number: e113665. (10.1371/journal.pone.0113665)
Seward, A. M., Beale, C. M., Gilbert, L., Jones, T. H. and Thomas, R. J. 2014. The impact of increased food availability on reproduction in a long-distance migratory songbird: Implications for environmental change?. PLoS ONE 9(10), article number: e111180. (10.1371/journal.pone.0111180)
McMahon, K., Conboy, A., O'Byrne-White, E., Thomas, R. J. and Marples, N. M. 2014. Dietary wariness influences the response of foraging birds to competitors. Animal Behaviour 89, pp. 63-69. (10.1016/j.anbehav.2013.12.025)
Richards, E. L., Alexander, L. G., Snellgrove, D., Thomas, R. J., Marples, N. M. and Cable, J. 2014. Variation in the expression of dietary conservation within and between fish species. Animal Behaviour 88, pp. 49-56. (10.1016/j.anbehav.2013.11.009)

2013

Seward, A. M., Beale, C. M., Gilbert, L., Jones, T. H. and Thomas, R. J. 2013. The impact of increased food availability on survival of a long-distance migratory bird. Ecology 94(1), pp. 221-230. (10.1890/12-0121.1)

2012

Medeiros Mirra, R. et al. 2012. Molecular evidence for gender differences in the migratory behaviour of a small seabird. PLoS ONE 7(9), article number: e46330. (10.1371/journal.pone.0046330)
Soanes, L. M., Thomas, R. J. and Bolton, M. 2012. Evaluation of field and analytical methods for estimating the population size of burrow-nesting seabirds from playback surveys. Bird Study 59(3), pp. 353-357. (10.1080/00063657.2012.695334)

2011

Richards, E. L., Thomas, R. J., Marples, N., Snellgrove, D. and Cable, J. 2011. The expression of dietary conservatism in solitary and shoaling 3-spined sticklebacks Gasterosteus aculeatus. Behavioral Ecology 22(4), pp. 738-744. (10.1093/beheco/arr047)
Clapham, J., Slater, F. M. and Thomas, R. J. 2011. Small mammals in tall grasses: biomass crops as a novel habitat. Mammal News(159), pp. 2-2.

2010

Thomas, R. J., King, T. A., Forshaw, H. E., Marples, N. M., Speed, M. and Cable, J. 2010. The response of fish to novel prey: Evidence that dietary conservatism is not restricted to birds. Behavioral Ecology 21(4), pp. 669-675. (10.1093/beheco/arq037)

2007

Stokke, B. G. et al. 2007. Host density predicts presence of cuckoo parasitism in reed warblers. Oikos 116(6), pp. 913-922. (10.1111/j.2007.0030-1299.15832.x)
Marples, N. M., Quinlan, M., Thomas, R. J. and Kelly, D. J. 2007. Deactivation of dietary wariness through experience of novel food. Behavioral Ecology 18(5), pp. 803-810. (10.1093/beheco/arm053)

2006

Thomas, R. J., Szekely, T., Powell, R. F. and Cuthill, I. C. 2006. Eye size, foraging methods and the timing of foraging in shorebirds. Functional Ecology 20(1), pp. 157-165. (10.1111/j.1365-2435.2006.01073.x)
Thomas, R. J., Medeiros Mirra, R. and Pollard, A. L. 2006. Evidence for nocturnal inter-tidal foraging by European Storm-Petrels Hydrobates pelagicus during migration. Atlantic Seabirds 8(1/2), pp. 87-94.

2004

Thomas, R. J., Bartlett, L. A., Marples, N. M., Kelly, D. J. and Cuthill, I. C. 2004. Prey selection by wild birds can allow novel and conspicuous colour morphs to spread in prey populations. Oikos 106(2), pp. 285-294. (10.1111/j.0030-1299.2004.13089.x)

2003

Thomas, R. J., Marples, N. M., Cuthill, I. C., Takahashi, M. and Gibson, E. A. 2003. Dietary conservatism may facilitate the initial evolution of aposematism. Oikos 101(3), pp. 458-466. (10.1034/j.1600-0706.2003.12061.x)
Thomas, R. J., Cuthill, I., Goldsmith, A., Burdett Proctor, S., Cosgrove, D. and Lidgate, H. 2003. The trade-off between singing and mass gain in a daytime-singing bird, the European robin. Behaviour 140(3), pp. 387-404. (10.1163/156853903321826693)

2002

Thomas, R. J. and Cuthill, I. C. 2002. Body mass regulation and the daily singing routines of European robins. Animal Behaviour 63(2), pp. 285-295. (10.1006/anbe.2001.1926)
Thomas, R. J. 2002. The costs of singing in nightingales. Animal Behaviour 63(5), pp. 959-966. (10.1006/anbe.2001.1969)
Thomas, R. J., Szeskely, T., Cuthill, I. C., Harper, D. G. C., Newson, S. E., Frayling, T. D. and Wallis, P. D. 2002. Eye size in birds and the timing of song at dawn. Proceedings of the Royal Society B: Biological Sciences 269(1493), pp. 831-837. (10.1098/rspb.2001.1941)

2000

Thomas, R. J. 2000. Strategic diel regulation of body mass in European robins. Animal Behaviour 59(4), pp. 787-791. (10.1006/anbe.1999.1360)

Projects

Climate change biology

What are the biological impacts of climate change? My research group is investigating the effects of climate on individuals, populations and ecological processes - particularly how such effects may be mediated by the behaviour of individual animals. Our current work in this field focuses on major study systems that use migratory birds as sensitive bio-indicators of climate-driven changes in trophic relationships.

Effects of climate changes on trophic relationships in marine ecosystems

The body mass regulation behaviour of the smallest Atlantic seabird (the European storm petrel) changes between years in response to climate-driven changes in sea temperatures. Together with Renata Medeiros and collaborators, we coordinate a long-term monitoring project investigating how these changes are mediated by changes in the marine food webs on which storm petrels rely.

The speciation of the band-rumped storm petrel "super-species" is the first documented example of sympatric speciation in a bird (and indeed in any tetrapod). Renata Medeiros, Hannah Hereward, Annalea Beard and collaborators are investigating how diet and foraging ecology varies between sibling-species breeding in different seasons and locations and years, with the aim of understanding how foraging traits are linked to speciation events.

Effects of climate changes on migrant birds

Migration is one of the major challenges to survival faced by many animals, and the availability of food and other resources along the migration route is of critical importance to successfully completing the journey. Furthermore, climate may impact individuals in different ways in different parts of the annual cycle (breeding grounds, migration stopover sites and wintering areas). Together with Adam Seward, James Vafidis, Rich Facey, Jez Smith, Mike Shewring, Sarah Davies and collaborators, we combine observational studies in the field, lab and field mesocosm experiments, experimental manipulations of food availability and analyses of long-term climate and bird ringing databases, to examine the effects of climate changes on breeding behaviour, reproductive success, migration decisions, wintering ecology and annual survival of migrant songbirds. The species studied to date are primarily northern wheatears and various species of reedbed warblers, with a new project on barn swallows now underway. This work is carried out at breeding locations (Wales for warblers, flycatcher, swallows and nightjars, Shetland and Greenland for wheatears), migration stopovers (Portugal and Shetland) and wintering areas (Senegal).

Sensory constraints on behaviour

How do animals decide when to be active? My research collaboration with Alex Pollard, Rhian Newman and others focuses on the role of eye design and visual constraints in an animal's behavioural decisions, particularly under varying light levels at twilight and at night. Specific projects have examined eye size and the timing of singing (in songbirds) and foraging (in shorebirds), as well as aviary and field studies of the impacts of light pollution, using night-singing in European robins and activity of aquatic organisms as case-studies.

Dietary wariness and foraging ecology

When a forager encounters an unfamiliar object, it must decide whether to eat it and risk being poisoned (if it is toxic) or avoid it and risk missing out on a valuable food source (if it is palatable). Foragers generally show brief aversions to novel objects (neophobia) but some individuals also show a much more persistent aversion to eating novel foods (dietary conservatism), which can last for weeks or even years. In collaboration with Nicola Marples, Jo Cable and others, we investigate the function, control and evolutionary consequences of these aspects of dietary wariness, in a range of taxonomic groups –primarily birds and fish. Related to this, I am also interested in the foraging decisions underlying the strategic regulation of energy reserves in foraging birds, over minutes, days, seasons and years.

Impacts of human activities on wild animals

Large numbers of wild animals are captured, handled, often marked for individual identification, and released in the course of scientific research and conservation monitoring programmes. Surprisingly, little is known about the effects of capture and handling on the animals themselves. Together with Leila Duarte and others, I am investigating the impact of capture and handling on the body mass regulation and foraging behaviour of animals throughout the annual cycle, and on breeding behaviour and fitness parameters. This work has implications for the design and implementation of ethical field studies on wild animals. Other studies of human impacts include evaluating and minimising the impacts of eco-tourism, and monitoring habitat use and foraging ecology of birds and other animals, in areas earmarked for –or currently undergoing- development.

Phd

Goruchwylio myfyrwyr PhD (gweler tab "goruchwylio")
asesydd PhD / arholwr
Hyfforddiant dadansoddi data (gweler isod)

Msc

Gwyddor Data (arweinydd modiwl)
Dulliau arolygu: Ornitholeg
Tiwtor personol
Goruchwylydd prosiect MSc

MBiol / MRes

Goruchwyliwr prosiect
Dulliau ymchwil: Adareg

Blwyddyn olaf

Bioleg Cadwraeth
Newid Byd-eang Bioleg
Goruchwylio prosiect blwyddyn olaf

Blwyddyn Hyfforddiant Proffesiynol (PTY)

Rwy'n cyfrannu'n sylweddol at raglen lleoliad gwaith Ysgol y Biowyddorau Caerdydd ar gyfer israddedigion, fel arfer yn goruchwylio 2-3 o fyfyrwyr PTY y flwyddyn fel goruchwyliwr academaidd Prifysgol Caerdydd, yn ogystal ag 1-3 lleoliad y flwyddyn fel cyd-gyfarwyddwr Eco-archwilio.

Yr ail flwyddyn

Amrywiaeth ac Addasu Anifeiliaid
Brain & Behaviour (arweinydd asesu)

Cyrsiau maes

Dulliau Arolwg Ecolegol (yng Ngwarchodfeydd Natur Parc Slip, De Cymru)
Prosiect blynyddol myfyrwyr Storm-petrels ym Mhortiwgal mewn cydweithrediad â Phortiwgal Rocha ac wedi'i ariannu gan gynllun symudedd myfyrwyr "Taith" Llywodraeth Cymru.

Blwyddyn gyntaf

Ymddygiad Anifeiliaid
Dewis rhywiol
Dulliau arolwg ecolegol

Dadansoddi data ac ystadegau

Rwy'n cynnal cyrsiau rheolaidd mewn dadansoddi data drwy gydol y flwyddyn. ar gyfer staff a myfyrwyr, gan gynnwys cyrsiau ar gyfer myfyrwyr PhD (NERC GW4+ DTP), y Gymdeithas Frenhinol er Gwarchod Adar (RSPB), a'r Gynhadledd Myfyrwyr flynyddol ar gyfer Gwyddor Cadwraeth (SCCS) ym Mhrifysgol Caergrawnt.

Gweithgareddau addysgu / dysgu cyffredinol

Gweithgareddau amrywiol sy'n berthnasol i'r cynlluniau gradd Sŵoleg a Gwyddorau Biolegol, gan gynnwys cefnogi Sgwennog Ornitholegol Prifysgol Caerdydd ("Clwb Adar"), a'r Gymdeithas Bywyd Gwyllt a Chadwraeth ("Wildsoc")
Tiwtor personol

Cefais fy ngeni a'm magu yn y Bannau Brycheiniog, lle mae llawer o'm hymchwil prifysgol bellach wedi'i leoli. Gwnes fy ngradd gyntaf (MA, BA) mewn Sŵoleg ac Ecoleg ym Mhrifysgol Caergrawnt (graddio yn 1993), a fy D.Phil. ym Mhrifysgol Sussex (graddio yn 1997). Ar ôl cyfnod byr fel warden cynorthwyol yn Arsyllfa Adar Rocha yn Ne Portiwgal, symudais i'r Ganolfan Bioleg Ymddygiadol ym Mhrifysgol Bryste ym 1998 i ymgymryd â swydd ôl-ddoethurol a ariennir gan NERC. Yn 2002 cefais Gymrodoriaeth Ymchwil Ôl-ddoethurol NERC, a gyflwynais i Ysgol y Biowyddorau Caerdydd. Cefais fy mhenodi i ddarlithyddiaeth yma yn 2006 ac rwyf bellach yn Uwch-Ddarlithydd.

Rolau a chyfrifoldebau

Cyd-gyfarwyddwr Eco-explore Community Interest Company.
Aelod o'r Gymdeithas Astudio Ymddygiad Anifeiliaid (ASAB, 2009-2016).
Ysgrifennydd Addysg y Gymdeithas Astudio Ymddygiad Anifeiliaid (2011-2016).
Aelod o Bwyllgor Moeseg y Gymdeithas Astudio Ymddygiad Anifeiliaid (2006-2013, Ysgrifennydd dros dro 2007, 2009).
Aelod o Bwyllgor Moeseg Prifysgol Caerdydd sy'n ymdrin ag ymchwil nad yw'n ASPA (2019-presennol).
Ymddiriedolwr y Fenter ar gyfer Cadwraeth Natur Cymru (INCC; 2023-presennol)

Myfyrwyr PhD cyfredol

Lucy Rowley: Geneteg o eryr sydd wedi'u hailgyflwyno.
Paul Robinson: Dewis a gwarchod cynefinoedd adar yng Ngorllewin Affrica.
Ed Drewitt (Prifysgol Bryste): Dewis ysglyfaethus o hebogiaid Peregrine sy'n byw yn drefol https://www.eddrewitt.co.uk/
Sarah Morgan: Cymunedau parasitiaid cymunedau adar môr. Sarah hefyd yw Swyddog Ymwelwyr Ynys Flatholm.
Amanda Wilson: Ecoleg o felids sympatric bach mewn tirwedd olew palmwydd sy'n dominyddu Gwarchodfa Bywyd Gwyllt Isaf Kniabatangan.
Ben Porter: Effeithiau diwydiannau morol ar Storm-petrels Ewropeaidd yn Ynysoedd Ffaröe. https://www.benporterwildlife.co.uk/

Ymchwilwyr Cysylltiedig

Stephen Davison

Addysg:BSc (Anrh.) Prifysgol Leeds. MSc Prifysgol Salford. MBA Open University. BA (Anrh.) Prifysgol Cymru Llanbedr Pont Steffan.

Diddordebau Ymchwil: ystlumod, yn enwedig agweddau ecolegol ystlumod coetir De-ddwyrain Cymru.

Cyhoeddiadau:

Stephen P. Davison & Robert J. Thomas. Ymddygiad heidio ymddangosiadol y gwanwyn o ystlumod pedol lleiaf (Rhinolophus hipposideros). Journal of Bat Research and Conservation 10 (1).

Stephen Davison 2021 Ffobia Lunar yn Ystlumod Cynhesu Prydain. Ystlumod Ynys Prydain vol 2 P174 – 185.

Thomas, R. J. and Davison, S. P. 2022. Ymddygiad haid tymhorol ystlumod Myotis a ddatgelwyd trwy fonitro integredig, sy'n cynnwys monitro acwstig goddefol gyda dadansoddiad awtomataidd, trapio a monitro fideo. Ecoleg ac Esblygiad12(9), rhif erthygl: e9344. (10.1002/ece3.9344)

Dr. Ashoka Ranjeewa

Gwefan ymchwil: https://www.wilsonperformancelab.com/ashoka-ranjeewa

Cyhoeddiadau:

Ranjeewa, A.D.G., Thomas, R.J., Weerakoon, D.K., Sandanayake, G.H.N.A. a Fernando, P., 2024. Sut wnaeth yr eliffant groesi'r ffens? Croesi ffens trydan gan eliffantod yn Udawalawe, Sri Lanka. Cadwraeth Anifeiliaid, ar gael yma.

Ranjeewa A. D. G., Pastorini J., Isler K., Weerakoon D. K., Kottage H. D., Fernando P; Mae lleihau lefelau dŵr cronfa ddŵr yn gwella ansawdd cynefinoedd eliffantod Asiaidd. (Paratoi'r llawysgrif)

Ranjeewa A. D. G., Tharanga Y. J. S., Sandanayake G. H. N. A., Perera B. V., & Fernando P. (2015) trapiau camera dadorchuddio'r cyrchwyr cnwd enigmatig yn Udawalawe, Sri Lanka. Gajah 42, 7-14.

Ranaweera E., Ranjeewa A. D. G., Koun Sugimoto (2015). Ysgogodd twristiaeth aflonyddwch ar fywyd gwyllt mewn ardaloedd gwarchodedig; Astudiaeth achos o eliffantod rhydd yn Sri Lanka. Ecoleg a Chadwraeth Fyd-eang, 4, 625–631.

de Silva S., Ranjeewa A. D. G., Weerakon D. K. (2011) Demograffeg eliffantod Asiaidd (Elephasmaximus) ym mharc cenedlaethol Udawalawe, Sri Lanka, yn seiliedig ar unigolion a nodwyd. Cadwraeth Fiolegol, 144, 1742-1752.

de Silva S., Ranjeewa A. D. G., & Kryazhimskiy S. (2011) Dynameg rhwydweithiau cymdeithasol ymhlith eliffantod Asiaidd benywaidd. Ecoleg BMC, 11, 17.

Nils Bouillard

Mae Nils yn cynnig ystod o wasanaethau mewn ymchwil, hyfforddiant ac ymgynghoriaeth ystlumod: https://www.batacoustics.com/

Goruchwyliaeth gyfredol

Lucy Rowley

Annalea Beard

Paul Robinson

Elisa Panjang

Amanda Wilson

Sarah Morgan

Ben Porter Porter

Alys Perry

Prosiectau'r gorffennol

Hannah Meinerzhagen (Prifysgol Caerwysg, Campws Falmouth): effeithiau gwynt ar hedfan adar môr a dosbarthu: Goblygiadau ar gyfer asesu effaith ffermydd gwynt ar y môr https://www.exeter.ac.uk/esi/people/profile/index.php?web_id=HMeinertzhagen
Emma Inzani (Prifysgol Caerwysg, Campws Falmouth): Ecoleg ymddygiadol gwylanod trefol https://www.researchgate.net/scientific-contributions/Emma-Inzani-2096384511
Elisa Panjang: Cadwraeth Pangolinau yn Borneo.
Annalea Beard: Bioleg Gadwraeth St Helena Storm Petrels ac adar Tropig coch-gynffon https://www.linkedin.com/in/annalea-beard-94b5655a

Contact Details

ThomasRJ@caerdydd.ac.uk
+44 29208 76653
Adeilad Syr Martin Evans, Ystafell C5.11, Rhodfa'r Amgueddfa, Caerdydd, CF10 3AX

Dr Rob Thomas (e/fe) D.Phil.

Trosolwyg