Bradley  Cain

Dr. Bradley Cain


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 July 2018 in Remote Sensing
Verified
Journal Article
Open access
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JMJacqueline Morrison
Jacqueline Morrison
THThomas Higginbottom
Thomas Higginbottom
Elias SymeonakisElias Symeonakis
Elias Symeonakis
MJMartin Jones
Martin Jones
FOFred Omengo
Fred Omengo
BBradley Cain
Bradley Cain
Afromontane forests are biodiversity hotspots and provide essential ecosystem services. However, they are under pressure as a result of an expanding human population and the impact of climate change. In many instances electric fencing has become a necessary management strategy to protect forest integrity and reduce human-wildlife conflict. The impact of confining hitherto migratory elephant populations within forests remains unknown, and monitoring largely inaccessible areas is challenging. We explore the application of remote sensing to monitor the impact of confinement, employing the Breaks For Additive Season and Trend (BFAST) time-series decomposition method over a 15-year period on Moderate Resolution Imaging Spectroradiometer (MODIS) Enhanced Vegetation Index (EVI) (MOD13Q1) datasets for two Kenyan forests. Results indicated that BFAST was able to identify disturbances from anthropogenic, fire and elephant damage. Sequential monitoring enabled the detection of gradual changes in the forest canopy, with degradation and regeneration being observed in both sites. Annual rates of forest loss in both areas were significantly lower than reported in other studies on Afromontane forests, suggesting that installing fences has reduced land-use conversion from human-related disturbances. Negative changes in EVI were predominantly gradual degradation rather than large-scale, abrupt clearings of the forest. Results presented here demonstrate that BFAST can be used to monitor biotic and abiotic drivers of change in Afromontane forests.

21 November 2022 in Animal Conservation
Verified
Journal Article
Open access
SSS. E. Scott
S. E. Scott
BBradley Cain
Bradley Cain
SKS. R. de Kort
S. R. de Kort
Bridget JohnsonBridget Johnson
Bridget Johnson
CKC. Khayale
C. Khayale
CBC. M. Bettridge
C. M. Bettridge
Captive breeding programmes can play an important role in the conservation of species threatened with extinction in the wild. White rhinoceros, Ceratotherium simum, have suffered drastic declines due to illegal poaching across their range, and captive populations have the potential to safeguard this species from extinction. However, white rhinoceros birth rates in captivity have been extremely low, and there is substantial variation in breeding success between different institutions. A better understanding of the factors limiting their reproduction in captivity could improve their breeding management and conservation potential. This study used studbook data (n = 467) and comparisons with wild populations in Kenya (n = 236) to assess the breeding performance and viability of the European captive southern white rhinoceros, Ceratotherium simum simum, population. Our results show that the European population is declining 2% annually under current demographic parameters. On average, just 10% of females calved annually, in comparison to almost 40% across wild populations. To become self‐sustaining, this must increase to a minimum of 17%, though reaching this target may lead to additional management challenges. Further analyses using studbook (n = 134 individuals) and multi‐institutional questionnaire data (n = 20 institutions) suggest that modifying the social structure of captive groups could improve female breeding success. Institutions housing larger groups had proportionally greater breeding success, and females were more likely to copulate if housed with another breeding female, and more receptive to bulls if housed in a group with a lower mean age. These findings highlight the importance of considering social conditions in captive breeding programmes, particularly for species with complex social systems and low reproductive rates.

29 January 2021 in Ecology and Evolution
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Journal Article
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RWRyan Wimbles
Ryan Wimbles
LMLouise M. Melling
Louise M. Melling
BBradley Cain
Bradley Cain
NWNaomi Davies Walsh
Naomi Davies Walsh
JDJason Doherty
Jason Doherty
KSKirsty Shaw
Kirsty Shaw
This paper presents a microfluidic device capable of performing genetic analysis on dung samples to identify White Rhinoceros (Ceratotherium simum). The development of a microfluidic device, which can be used in the field, offers a portable and cost‐effective solution for DNA analysis and species identification to aid conservation efforts. Optimization of the DNA extraction processes produced equivalent yields compared to conventional kit‐based methods within just 5 minutes. The use of a color‐changing loop‐mediated isothermal amplification reaction for simultaneous detection of the cytochrome B sequence of C. simum enabled positive results to be obtained within as little as 30 minutes. Field testing was performed at Knowsley Safari to demonstrate real‐world applicability of the microfluidic device for testing of biological samples.

18 October 2020 in African Journal of Ecology
Verified
Journal Article
Open access
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WHW. Edwin Harris
W. Edwin Harris
SKSelvino R. de Kort
Selvino R. de Kort
CBCaroline M. Bettridge
Caroline M. Bettridge
Joana BorgesJoana Borges
Joana Borges
BBradley Cain
Bradley Cain
JFJulia E. Fa
Julia E. Fa
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24 January 2025 in Scientific Reports
Verified
Journal Article
Open access
PDF file
BBradley Cain
Bradley Cain
JFJulia E. Fa
Julia E. Fa
RARajan Amin
Rajan Amin
JMJacqueline Morrison
Jacqueline Morrison
EMEva Avila Martin
Eva Avila Martin
SKSelvino R. de Kort
Selvino R. de Kort
Unsustainable wild meat hunting poses a significant threat to wildlife and tropical forest ecosystems. While high levels of extraction linked to commercial trade have received significant attention, the sustainability of subsistence hunting by Indigenous Peoples in Africa has been less studied. Understanding how changing lifestyles, particularly the sedentarisation of former hunter-gatherers, have affected the use of forest resources is crucial for wildlife conservation and livelihoods. The spatial management of hunting through the establishment of no-take zones, which act as sources for adjacent hunting areas, offers promise for the sustainability of Indigenous livelihoods. We conducted an extensive camera trap study in hunting areas subject to source-sink dynamics used by 10 sedentarised Baka communities. We compared species richness, occupancy, abundance, and community composition to a relatively non-hunted reference area in the adjacent Dja Faunal Reserve. Subsistence hunting by the Baka had a limited impact on species richness but significantly altered community composition and the abundance of carnivores, seed dispersers and granivores. These changes highlight that even the spatial management of hunting may have consequences for the sustainability of hunting systems and the functional ecology of tropical forests.

13 November 2023 in Oryx
Verified
Journal Article
Open access
PDF file
TSTommy Sandri
Tommy Sandri
MPMike Prettejohn
Mike Prettejohn
FOFred Omengo
Fred Omengo
BBradley Cain
Bradley Cain
MJMartin Jones
Martin Jones
WHW. Edwin Harris
W. Edwin Harris
Conservation monitoring is paramount for the gathering of information on species and populations in need of conservation actions. However, monitoring of the mountain bongo Tragelaphus eurycerus isaaci, a Critically Endangered antelope endemic to Kenya, has hitherto been limited to surveillance (i.e. focused on persistence of the species in particular areas), thus limiting the information that could be retrieved on the status and trends of these populations. Using a newly developed identification system, we implemented robust design mark–recapture using existing camera-trap records of four wild subpopulations of the bongo. We provide data on sex and age structure and the first estimates of population size in the wild. Males and calves seem to be suffering higher mortality than females, and only two of the four monitored populations include adults of both sexes and calves. The combined size of these two breeding populations is estimated to be 29–50. Our findings confirm the critical situation of the mountain bongo in the wild and highlight the need for conservation actions to reinforce the wild populations for the long-term conservation of this antelope.