Revealing the consequences of male-biased trophy hunting on the maintenance of genetic variation

  title={Revealing the consequences of male-biased trophy hunting on the maintenance of genetic variation},
  author={Rolando Rodr{\'i}guez-Mu{\~n}oz and Carlos Rodr{\'i}guez Valle and Mar{\'i}a Jos{\'e} Ba{\~n}uelos and Patricia M. Mirol},
  journal={Conservation Genetics},
Demographic models accounting for operational sex ratio (OSR) show that male numbers can have a substantial influence on the dynamics of wild populations. [] Key Method We based our assessment in the comparison of the dynamics of neutral markers transmitted by both parents (microsatellites) versus markers transmitted only by females (mitochondrial DNA—mtDNA).
Predicting the Evolutionary Consequences of Trophy Hunting on a Quantitative Trait
It is shown that trophy hunting does lead to trophy evolution defined as change in the mean breeding value of the trait, but the fastest rates of phenotypic change attributable to trophy hunting via evolution are 1 to 2 orders of magnitude slower than the fast rates reported from statistical analyses.
Population dynamics of an endangered forest bird using mark–recapture models based on DNA-tagging
Male-biased sex ratios, higher female turnover and seemingly low female apparent survival were the authors' key findings, suggesting that adult females deserve priority attention in evaluation and design of conservation actions.
Conservation in the southern edge of Tetrao urogallus distribution: Gene flow despite fragmentation in the stronghold of the Cantabrian capercaillie
It is indicated that gene flow among sampling zones might be at least slightly compromised, except between the two zones located in the South, despite this, the sampling zones seem to exchange migrants at a rate that prevents genetic differentiation to the point of creating clusters.
Extraction of DNA from captive‐sourced feces and molted feathers provides a novel method for conservation management of New Zealand kiwi (Apteryx spp.)
A wide‐reaching, noninvasive molecular approach that will improve conservation management by providing better parameter estimates associated with population ecology and demographics such as abundance, growth rates, and genetic diversity is tested.
Genetic diversity of the endangered Mongolian saiga antelope Saiga tatarica mongolica (Artiodactyla: Bovidae) provides insights into conservation
The results revealed that the Mongolian saiga presents very low genetic diversity at the mitochondrial level, with no shared mitochondrial haplotype between the two subspecies, indicating that conservation corridors are actually promoting contact between different herds.
Estrés fisiológico en urogallos cantábricos (Tetrao urogallus cantabricus) silvestres y en cautividad: variaciones temporales e implicaciones metodológicas
It is speculated that the observed temporal trend in stress levels might reflect access to specific food, but that such limitation can be tightly linked to other temporal changes like structure or habitat composition or interactions with other competing species for this food resource.


Do males matter? The role of males in population dynamics
The results of this study show that the males can have a substantial effect on population dynamics, particularly so when human influences result in biased sex ratios.
Inbreeding depression and male fitness in black grouse
It is suggested that inbred males have a disadvantage in the competition for territories that may explain the relationships with LCS and inbreeding, and mean d2 provides more information about levels of inbreeding‐outbreeding than heterozygosity alone, and potentially highlights the effects of heterosis.
Effects of recent population bottlenecks on reconstructing the demographic history of prairie‐chickens
It is found that NCA did not perform well in the presence of bottleneck events, although it did recover some genetic signals associated with increased isolation and the extinction of intermediate populations and Tajima's D was not significantly different from zero, suggesting the data conformed to neutral expectations.
Demographic Stochasticity, Allee Effects, and Extinction: The Influence of Mating System and Sex Ratio
It is shown that it is not mating system alone but combinations of mating system and sex ratio that are important in shaping the stochastic dynamics of populations and that appreciating the role of Stochasticity is key to understanding their effects.
Genetic Variability of Polish Population of the Capercaillie Tetrao urogallus
The results show that despite some inevitable reduction in genetic variability, most of the Polish populations retained a substantial level of microsatellite polymorphism, and only in the population from Janów Lubelski Forest was there a significant reduction in variability.
Population genetic structure of male black grouse (Tetrao tetrix L.) in fragmented vs. continuous landscapes
The association of habitat fragmentation with genetic structure of male black grouse Tetrao tetrix and the detection of isolation by distance in the Alps suggests that gene flow among populations does occur and that habitat fragmentation can affect genetic structure in avian species with relatively high dispersal propensities.
Conservation: Reproductive collapse in saiga antelope harems
It is shown that reproductive collapse in the critically endangered saiga antelope is likely to have been caused by a catastrophic drop in the number of adult males in this harem-breeding ungulate, probably due to selective poaching for their horns.
From connectivity to isolation: genetic consequences of population fragmentation in capercaillie across Europe
The results agree with the concept of a gradual increase in genetic differentiation from connectivity to isolation, and from recent to historic isolation, which may have significant genetic and evolutionary consequences for surviving populations.
Reliability of genetic bottleneck tests for detecting recent population declines
Recommendations are provided that could add rigor to inferences drawn from future bottleneck tests and highlight new directions for the characterization of demographic history.
Population genetic structure and diversity of the endangered Cantabrian capercaillie
The genetic analysis of the Cantabrian capercaillie population using non-invasive samples shows a recent decline in effective population size that can be related to an ongoing process of population reduction and fragmentation.