Consistent nest-site selection across habitats increases fitness in Asian Houbara

Guilherme, João L.; Burnside, Robert J.; Collar, Nigel; Dolman, Paul M.

doi:10.1642/auk-17-156.1

Cited by 19 publications

(18 citation statements)

References 36 publications

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“…For precocial birds whose chicks must feed themselves soon after hatch, proximity to foraging habitat can have a profound effect on habitat selection (Fraser & Catlin, ; Walker et al, ) and chick survival (Cohen, Houghton, & Fraser, ; Gibson, Blomberg, Atamian, & Sedinger, ; Loegering & Fraser, ), and these selective pressures must be weighed against other concerns (Chalfoun & Schmidt, ). Adult birds also must balance their own safety with that of their nests, and these trade‐offs may obscure the relationship between selection and fitness (Chalfoun & Schmidt, ; Gomez‐Serrano & Lopez‐Lopez, ; Guilherme, Burnside, Collar, & Dolman, ).…”

Section: Introductionmentioning

confidence: 99%

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Habitat selection and potential fitness consequences of two early‐successional species with differing life‐history strategies

Catlin

Gibson

Friedrich

et al. 2019

Ecology and Evolution

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Habitat selection and its relationship to fitness is a fundamental concept in ecology, but the mechanisms driving this connection are complex and difficult to detect. Despite the difficulties in understanding such intricate relationships, it is imperative that we study habitat selection and its relationship with fitness. We compared habitat selection of least terns (Sternula antillarum) and piping plovers (Charadrius melodus) on the Missouri River (2012–2014) to examine the consequences of those choices on nest and chick survival. We hypothesized that plovers and terns would select habitat that minimized the chance of flooding and predation of eggs, chicks, and adults, but that plovers would also select habitat that would provide foraging habitat for their chicks. We developed an integrated habitat selection model that assessed selection across multiple scales (sandbar and nest scales) and directly modeled the effect of selection on nest and chick survival. In general, the species selected habitat in keeping with our hypotheses, such that predation and flooding, in particular, may have been reduced. Sandbar selection had either a negative or no appreciable effect on nest survival for both species across years. Nest‐site selection in 2012 had a generally positive effect on nest survival and chick survival for both terns and plovers, and this trended toward a negative effect by 2014. This result suggested that early selection decisions appeared to be adaptive, but we speculate that relatively high site fidelity and habitat degradation led to reduced benefit over time. Our results highlight the complex nature of habitat selection and its relationship to fitness.

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Section: Introductionmentioning

confidence: 99%

“…Adult birds also must balance their own safety with that of their nests, and these trade-offs may obscure the relationship between selection and fitness (Chalfoun & Schmidt, 2012;Gomez-Serrano & Lopez-Lopez, 2014;Guilherme, Burnside, Collar, & Dolman, 2018).…”

mentioning

confidence: 99%

Habitat selection and potential fitness consequences of two early‐successional species with differing life‐history strategies

Catlin

Gibson

Friedrich

et al. 2019

Ecology and Evolution

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“…Several aspects of this population (e.g. breeding productivity, habitat selection, migration and survival) have already been investigated (Koshkin et al 2014;Burnside et al 2016;Koshkin et al 2016a;Koshkin et al 2016b;Burnside et al 2017Burnside et al , 2018Guilherme et al 2018). Fieldwork was conducted annually during the entire breeding season (March-July) from 2012 to 2018 inclusive, with a satellite-tagging and brood-monitoring programme from 2013.…”

Section: Study Area and Populationmentioning

confidence: 99%

“…Additionally, eggs were not turned during measurements and surgical gloves were worn to prevent scent and bacteria transmission. From 2014, 147 of the 298 monitored nests had cameras to validate outcomes and their interpretation from field-signs (for nest-monitoring see Koshkin et al 2016b, Guilherme et al 2018.…”

Section: Nest and Brood Monitoringmentioning

confidence: 99%

“…Daily nest survival Whether daily survival rate (DSR) of clutches varied between years, within season or across incubation was modelled in MARK (v. 6.2) using RMark package (Laake 2013) in R. Owing to the ephemeral emergence of predators as the desert warms, DSR is non-linearly related to date (Koshkin et al 2016b). The mean height of shrubs within 50 m of the nest also influences the probability of nest predation (Koshkin et al 2016b;Guilherme et al 2018), so shrub height, date and date 2 were included in the nest survival model (Table 1).…”

Section: Parameter Estimationmentioning

confidence: 99%

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Backpack-mounted satellite transmitters do not affect reproductive performance in a migratory bustard

et al. 2019

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Backpack-mounted satellite transmitters (PTTs) are used extensively in the study of avian habitat use and of the movements and demography of medium-to large-bodied species, but can affect individuals' performance and fitness. Transparent assessment of potential transmitter effects is important for both ethical accountability and confidence in, or adjustment to, life history parameter estimates. We assessed the influence of transmitters on seven reproductive parameters in Asian houbara Chlamydotis macqueenii, comparing 114 nests of 38 females carrying PTTs to 184 nests of untagged birds (non-PTT) over seven breeding seasons (2012)(2013)(2014)(2015)(2016)(2017)(2018) in Uzbekistan. There was no evidence of any influence of PTTs on: lay date (non-PTT x ̅ = 91.7 Julian day ± 12.3 SD; PTT x ̅ = 95.1 Julian day ± 15.7 SD); clutch size (non-PTT x ̅ = 3.30 ± 0.68 SD; PTT x ̅ = 3.25 ± 0.65 SD); mean egg weight at laying (non-PTT x ̅ = 66.1 g ± 5.4 SD; PTT x ̅ = 66.4 g ± 5.4 SD); nest success (non-PTT x ̅ = 57.08% ± 4.3 SE; PTT x ̅ = 58.24% ± 4.5 SE for nests started 2 April); egg hatchability (non-PTT x ̅ = 88.3% ± 2.2 SE; PTT x ̅ = 88.3% ± 2.6 SE); or chick survival to fledging from broods that had at least one surviving chick (non-PTT x ̅ = 63.4% ± 4.2 SE; PTT x ̅ = 64.4% ± 4.7 SE). High nesting propensity (97.3% year −1 ± 1.9% SE) of tagged birds indicated minimal PTT effect on breeding probability. These findings show that harness-mounted transmitters can give unbiased measures of demographic parameters of this species, and are relevant to other large-bodied, cursorial, ground-nesting birds of open habitats, particularly other bustards.

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Transcriptome analysis provides new insights into cold adaptation of corsac fox (Vulpes Corsac)

Yang

Sun

Xia

et al. 2022

Ecology and Evolution

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Vulpesare widely distributed throughout the world and have undergone drastic physiological and phenotypic changes in response to their environment. However, little is known about the underlying genetic causes of these traits, especially Vulpes corsac. In this study, RNA‐Seq was used to obtain a comprehensive dataset for multiple pooled tissues of corsac fox, and selection analysis of orthologous genes was performed to identify the genes that may be influenced by the low‐temperature environment. More than 6.32 Gb clean reads were obtained and assembled into a total of 173,353 unigenes with an average length of 557 bp for corsac fox. Selective pressure analysis showed that 16 positively selected genes (PSGs) were identified in corsac fox, red fox, and arctic fox. Enrichment analysis of PSGs showed that the LRP11 gene was enriched in several pathways related to the low‐temperature response and might play a key role in response to environmental stimuli of foxes. In addition, several positively selected genes were related to DNA damage repair (ELP2 and CHAF1A), innate immunity (ARRDC4 and S100A12), and the respiratory chain (NDUFA5), and these positively selected genes might play a role in adaptation to harsh wild fox environments. The results of common orthologous gene analysis showed that gene flow or convergent evolution might be an important factor in promoting regional differentiation of foxes. Our study provides a valuable transcriptomic resource for the evolutionary history of the corsac fox and the adaptations to the extreme environments.

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Consistent nest-site selection across habitats increases fitness in Asian Houbara

Cited by 19 publications

References 36 publications

Habitat selection and potential fitness consequences of two early‐successional species with differing life‐history strategies

Habitat selection and potential fitness consequences of two early‐successional species with differing life‐history strategies

Backpack-mounted satellite transmitters do not affect reproductive performance in a migratory bustard

Transcriptome analysis provides new insights into cold adaptation of corsac fox (Vulpes Corsac)

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