Academic Supervisors:
Dr Enrico
Sorato, Reneco International Wildlife Consultants, Abu Dhabi (esorato@reneco-hq.org)
Location:
Psychology, Streatham Campus, Exeter
Project Description:
The endangered North African houbara bustard (Chlamydotis undulata undulata) has been declining drastically
throughout its range due to overhunting and habitat degradation. Since
the late 90s the species has been the subject of a large-scale captive breeding
programme at the Emirates Center for Wildlife Propagation, Missour, with more
than 15 000 birds produced annually for release in the wild. The intention of
this rearing and release is to restore wild populations and supplement hunting
grounds for regulated falconry (http://www.houbarafund.org). Houbaras
are bred using an artificial insemination process following a strict genetic
management (pedigree-based), designed to increase genetic diversity and avoid
inbreeding depression (Rabier et al. 2020, 2021). However, past research
(Charge et al. 2013, 2014) and ongoing analyses (E Sorato) have provided
evidence for among-individual differences in sexual behaviour and life history
traits partly associated with origin (captive-bred vs wild-origin individuals),
which may arise through genetic adaptation to captivity and parental effects.. Still, the relative extent to
which genetic changes and environmental effects may affect personality, cognitive traits, and
ultimately fitness in the wild, remains to be explored.
The successful applicant will investigate the
effects of captive-breeding on personality traits, by conducting behavioural
tests on captive houbaras throughout ontogeny. Interplays between personality
and individual cognitive abilities (discriminative and reversal learning) will
also be explored. By testing individuals with varying known histories of
captive breeding, and by using quantitative genetics statistical methods, we
will assess the extent of adaptation to captivity and disentangle the relative
impact of additive genetic, parental and environmental effects on the main
personality axes, and on interplays between personality and cognitive traits.
This study will contribute to unravel the selection forces shaping variation in
personality and cognitive traits and will ultimately aid improve conservation
breeding of endangered species / houbara bustards.
References
Chargé, R., Teplitsky, C., Hingrat, Y., Saint
Jalme, M., Lacroix, F., & Sorci, G. (2013). Quantitative genetics of sexual
display, ejaculate quality and size in a lekking species. Journal of Animal
Ecology, 82(2), 399–407.
Chargé, R., Sorci, G., Saint Jalme, M.,
Lesobre, L., Hingrat, Y., Lacroix, F., & Teplitsky, C. (2014). Does recognized
genetic management in supportive breeding prevent genetic changes in
life-history traits? Evolutionary Applications, 7(5), 521–532.
Rabier, R., Robert, A., Lacroix, F. &
Lesobre, L. (2020). Genetic assessment
of a conservation breeding program of the houbara bustard (Chlamydotis undulata
undulata) in Morocco, based on pedigree and molecular analyses. Zoo Biol. 39,
365–447.
Rabier, R., Lesobre, L. & Robert, A.
(2021). Reproductive performance in houbara bustard is affected by the combined
effects of age, inbreeding and number of generations in captivity. Sci Rep 11,
7813 (2021
Working
environment:
The project is part
of a collaboration between Dr Enrico Sorato (Reneco International Wildlife
Consultants; ECWP) and Dr Joah Madden (Centre for Research in Animal Behaviour,
University of Exeter) investigating the behavioural, life history and fitness
consequences of captive breeding in the houbara bustard.
The student will be
based in UK at Exeter, supervised by Dr Joah Madden. Fieldwork will take place
at the Emirates Center for Wildlife Propagation in Missour, Eastern Morocco,
starting in Spring 2022, under the supervision of E Sorato. Besides Morocco,
the student will also be expected to spend time at the Reneco HQ in Abu Dhabi,
UAE, to conduct data analysis. This award provides annual funding to cover Home
or International tuition fees for three years. Research costs,
associated travel, and any on-site accommodation, plus an annual stipend to a
total value of ~22,000 Euros/year will be provided directly by Reneco, who will
inform in writing the successful candidate once appointed.
International applicants need to
be aware that you will have to cover the cost of your student visa, healthcare
surcharge and other costs of moving to the UK to do a PhD.
Entry requirements and application procedure:
Please
see https://www.exeter.ac.uk/study/funding/award/?id=4410
(note that the application deadline may be extended if suitable
candidates have not been found)