Long-term, fine-scale temporal patterns of genetic diversity in the restored Mauritius parakeet reveal genetic impacts of management and associated demographic effects on reintroduction programmes

Tollington, Simon; Jones, Carl G.; Greenwood, A. D.; Tatayah, Vikash; Raisin, Claire; Burke, Terry; Dawson, Deborah A.; Groombridge, Jim J.

doi:10.1016/j.biocon.2013.02.013

Cited by 24 publications

(41 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, Tollington et al . ). Establishment of populations of P. echo on Rodrigues and Reunion, by way of a conservation introduction, could therefore help to secure the short‐to‐medium term future of this recently restored parrot population while at the same time providing phylogenetically appropriate material for longer‐term evolutionary forces to act upon to return an endemic parrot form to those islands.…”

Section: Discussionmentioning

confidence: 97%

Micro‐evolutionary diversification among Indian Ocean parrots: temporal and spatial changes in phylogenetic diversity as a consequence of extinction and invasion

Jackson

Jones

Agapow

et al. 2015

Ibis

Self Cite

View full text Add to dashboard Cite

Almost 90% of global bird extinctions have occurred on islands. The loss of endemic species from island systems can dramatically alter evolutionary trajectories of insular species biodiversity, resulting in a loss of evolutionary diversity important for species adaptation to changing environments. The Western Indian Ocean islands have been the scene of evolution for a large number of endemic parrots. Since their discovery in the 16th century, many of these parrots have become extinct or have declined in numbers. Alongside the extinction of species, a number of the Indian Ocean islands have experienced colonization by highly invasive parrots, such as the Ring-necked Parakeet Psittacula krameri. Such extinctions and invasions can, on an evolutionary timescale, drive changes in species composition, genetic diversity and turnover in phylogenetic diversity, all of which can have important impacts on species potential for adaptation to changing environmental and climatic conditions. Using mtDNA cytochrome b data, we resolve the taxonomic placement of three extinct Indian Ocean parrots: the Rodrigues Psittacula exsul, Seychelles Psittacula wardi and Reunion Parakeets Psittacula eques. This case study quantifies how the extinction of these species has resulted in lost historical endemic phylogenetic diversity and reduced levels of species richness, and illustrates how it is being replaced by non-endemic invasive forms such as the Ring-necked Parakeet. Finally, we use our phylogenetic framework to identify and recommend a number of phylogenetically appropriate ecological replacements for the extinct parrots. Such replacements may be introduced once invasive forms have been cleared, to rejuvenate ecosystem function and restore lost phylogenetic diversity.

show abstract

Section: Discussionmentioning

confidence: 97%

Micro‐evolutionary diversification among Indian Ocean parrots: temporal and spatial changes in phylogenetic diversity as a consequence of extinction and invasion

Jackson

Jones

Agapow

et al. 2015

Ibis

Self Cite

View full text Add to dashboard Cite

show abstract

“…) were as follows: nest type (natural cavity or artificial box), brood size at fledging, lay date, female age, supplemental feeding, hatch order, year as a categorical variable (2005–2009), gender and individual MLH (Tollington et al . ).…”

Section: Methodsmentioning

confidence: 97%

“…; Tollington et al . ) and lay date of first egg (Hasselquist, Wasson & Winkler ) (number of days after September 1st). Additional predictor variables were disease phase (pre‐ (2000–2004), during (2005) and post‐disease (2006–2011) outbreak) and parental supplemental feeding (true or false).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Detailed monitoring of a small but recovering population reveals sublethal effects of disease and unexpected interactions with supplemental feeding

Tollington

Greenwood

Jones

et al. 2015

Journal of Animal Ecology

Self Cite

View full text Add to dashboard Cite

Summary Infectious diseases are widely recognized to have substantial impact on wildlife populations. These impacts are sometimes exacerbated in small endangered populations, and therefore, the success of conservation reintroductions to aid the recovery of such species can be seriously threatened by outbreaks of infectious disease. Intensive management strategies associated with conservation reintroductions can further compound these negative effects in such populations.Exploring the sublethal effects of disease outbreaks among natural populations is challenging and requires longitudinal, individual life‐history data on patterns of reproductive success and other indicators of individual fitness.Long‐term monitoring data concerning detailed reproductive information of the reintroduced Mauritius parakeet (Psittacula echo) population collected before, during and after a disease outbreak was investigated.Deleterious effects of an outbreak of beak and feather disease virus (BFDV) were revealed on hatch success, but these effects were remarkably short‐lived and disproportionately associated with breeding pairs which took supplemental food. Individual BFDV infection status was not predicted by any genetic, environmental or conservation management factors and was not associated with any of our measures of immune function, perhaps suggesting immunological impairment. Experimental immunostimulation using the PHA (phytohaemagglutinin assay) challenge technique did, however, provoke a significant cellular immune response.We illustrate the resilience of this bottlenecked and once critically endangered, island‐endemic species to an epidemic outbreak of BFDV and highlight the value of systematic monitoring in revealing inconspicuous but nonetheless substantial ecological interactions. Our study demonstrates that the emergence of such an infectious disease in a population ordinarily associated with increased susceptibility does not necessarily lead to deleterious impacts on population growth and that negative effects on reproductive fitness can be short‐lived.

show abstract

“…Tollington et al [30] found that the genetic diversity of a reintroduced parakeet population declined after 20 years. However, for significant genetic differentiation, augmentation led to genetic homogeneity among sub-populations.…”

Section: Genetic Diversity In Reintroductionmentioning

confidence: 99%

Advances in the reintroduction of rare and endangered wild plant species

Ren

Jian

Liu

et al. 2014

Sci. China Life Sci.

View full text Add to dashboard Cite

Human disturbance and climate change have increased the risk of extinction for rare and endangered wild plant species. One effective way to conserve these rare and endangered species is through reintroduction. In this review, we summarize the advances in wild plant reintroduction from five perspectives: the establishment of reintroduction biology as an important tool for biodiversity conservation; the importance of genetic diversity in reintroduction; reintroduction under global climate change; recruitment limitation in reintroduction; and reintroduction and ecological restoration. In addition, we consider the future of plant reintroduction strategies. reintroduction, global change, genetic diversity, settlement limitation, ecological restoration, reintroduction biology Citation:Ren H, Jian SG, Liu HX, Zhang QM, Lu HF. Advances in the reintroduction of rare and endangered wild plant species.

show abstract

Long-term, fine-scale temporal patterns of genetic diversity in the restored Mauritius parakeet reveal genetic impacts of management and associated demographic effects on reintroduction programmes

Cited by 24 publications

References 55 publications

Micro‐evolutionary diversification among Indian Ocean parrots: temporal and spatial changes in phylogenetic diversity as a consequence of extinction and invasion

Micro‐evolutionary diversification among Indian Ocean parrots: temporal and spatial changes in phylogenetic diversity as a consequence of extinction and invasion

Detailed monitoring of a small but recovering population reveals sublethal effects of disease and unexpected interactions with supplemental feeding

Advances in the reintroduction of rare and endangered wild plant species

Contact Info

Product

Resources

About