Inbreeding depression in red deer calves
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Walling, Craig A; Nussey, Daniel H; Morris, Alison; Clutton-Brock, Tim H; Kruuk, Loeske EB; Pemberton, Josephine M
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BACKGROUND Understanding the fitness consequences of inbreeding is of major importance for evolutionary and conservation biology. However, there are few studies using pedigree-based estimates of inbreeding or investigating the influence of environment and age variation on inbreeding depression in natural populations. Here we investigated the consequences of variation in inbreeding coefficient for three juvenile traits, birth date, birth weight and first year survival, in a wild population of...[Show more]
dc.contributor.author | Walling, Craig A | |
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dc.contributor.author | Nussey, Daniel H | |
dc.contributor.author | Morris, Alison | |
dc.contributor.author | Clutton-Brock, Tim H | |
dc.contributor.author | Kruuk, Loeske EB | |
dc.contributor.author | Pemberton, Josephine M | |
dc.date.accessioned | 2015-12-22T04:17:59Z | |
dc.date.available | 2015-12-22T04:17:59Z | |
dc.identifier.issn | 1471-2148 | |
dc.identifier.uri | http://hdl.handle.net/1885/95171 | |
dc.description.abstract | BACKGROUND Understanding the fitness consequences of inbreeding is of major importance for evolutionary and conservation biology. However, there are few studies using pedigree-based estimates of inbreeding or investigating the influence of environment and age variation on inbreeding depression in natural populations. Here we investigated the consequences of variation in inbreeding coefficient for three juvenile traits, birth date, birth weight and first year survival, in a wild population of red deer, considering both calf and mother's inbreeding coefficient. We also tested whether inbreeding depression varied with environmental conditions and maternal age. RESULTS We detected non-zero inbreeding coefficients for 22% of individuals with both parents and at least one grandparent known (increasing to 42% if the dataset was restricted to those with four known grandparents). Inbreeding depression was evident for birth weight and first year survival but not for birth date: the first year survival of offspring with an inbreeding coefficient of 0.25 was reduced by 77% compared to offspring with an inbreeding coefficient of zero. However, it was independent of measures of environmental variation and maternal age. The effect of inbreeding on birth weight appeared to be driven by highly inbred individuals (F = 0.25). On the other hand first year survival showed strong inbreeding depression that was not solely driven by individuals with the highest inbreeding coefficients, corresponding to an estimate of 4.35 lethal equivalents. CONCLUSIONS These results represent a rare demonstration of inbreeding depression using pedigree-based estimates in a wild mammal population and highlight the potential strength of effects on key components of fitness. | |
dc.description.sponsorship | This research was supported by a NERC grant to LEBK, JMP and THCB, NERC and BBSRC fellowships to DHN and a Royal Society fellowship to LEBK. | |
dc.publisher | BioMed Central | |
dc.rights | © 2011 Walling et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |
dc.source | BMC Evolutionary Biology | |
dc.subject | age factors | |
dc.subject | animals | |
dc.subject | animals, newborn | |
dc.subject | birth weight | |
dc.subject | deer | |
dc.subject | environment | |
dc.subject | female | |
dc.subject | male | |
dc.subject | models, biological | |
dc.subject | pedigree | |
dc.subject | survival analysis | |
dc.subject | inbreeding | |
dc.title | Inbreeding depression in red deer calves | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 11 | |
dc.date.issued | 2011-10-31 | |
local.identifier.absfor | 060411 | |
local.identifier.ariespublication | f5625xPUB9021 | |
local.publisher.url | http://www.biomedcentral.com/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Walling, Craig A., University of Edinburgh, United Kingdom | |
local.contributor.affiliation | Nussey, Daniel H., University of Edinburgh, United Kingdom | |
local.contributor.affiliation | Morris, Alison, University of Edinburgh, United Kingdom | |
local.contributor.affiliation | Clutton-Brock, Tim H, University of Cambridge, United Kingdom | |
local.contributor.affiliation | Kruuk, Loeske, College of Medicine, Biology and Environment, CMBE Research School of Biology, Division of Evolution, Ecology & Genetics, The Australian National University | |
local.contributor.affiliation | Pemberton, Josephine M, University of Edinburgh, United Kingdom | |
local.identifier.essn | 1471-2148 | |
local.bibliographicCitation.issue | 1 | |
local.bibliographicCitation.startpage | 318 | |
local.bibliographicCitation.lastpage | 13 | |
local.identifier.doi | 10.1186/1471-2148-11-318 | |
local.identifier.absseo | 970106 | |
dc.date.updated | 2016-02-24T09:44:46Z | |
local.identifier.scopusID | 2-s2.0-80054991863 | |
local.identifier.thomsonID | 000297466400001 | |
Collections | ANU Research Publications |
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01_Walling_Inbreeding_depression_in_red_2011.pdf | Published Version | 505.04 kB | Adobe PDF |
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