Density-dependence of reproductive success in a Houbara bustard population

Monnier‐Corbel, Alice; Monnet, Anne‐Christine; Bacon, Léo; Benito, Blas M.; Robert, Alexandre; Hingrat, Yves

doi:10.1016/j.gecco.2022.e02071

Cited by 4 publications

(6 citation statements)

References 81 publications

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“…As shown in Fig. 2c, the observed local trends are overall positive over the study area, but the slopes also tend to decrease for sites with the highest HSI values, suggesting that some density-dependent regulation may occur at these sites (Monnier-Corbel et al, 2022).…”

Section: Discussionmentioning

confidence: 82%

“…A third limitation of our study, which relates to our general results on the statistical relationship between HSI and abundance, concerns the low variance of HSI over the Eastern study area (see Fig. 1 and discussion in Monnier-Corbel et al, 2022), where habitats are generally highly favorable. Studying an area with more contrasting habitat qualities would have increased the statistical power.…”

Section: Discussionmentioning

confidence: 89%

“…Local population density, age, reproductive status, body condition and predation pressure may influence habitat choice and dispersal of individuals from one habitat to another. In high quality sites for houbara, abundances can be maintained to values close to carrying capacity by high attractiveness, positive intrinsic growth rate and density-dependent regulation mechanisms (Monnier-Corbel et al, 2022). For low quality sites that are unattractive and cannot support an increasing population, we also expect to observe low or zero numbers and low temporal variance.…”

Section: Discussionmentioning

confidence: 92%

“…Maximum local abundances associated with the most suitable sites were approximately five times higher than at the less suitable sites. The impact of variation in local abundances with habitat suitability is not negligible, especially for a low-density species such as the houbara (0.44 individuals/km 2 , Monnier-Corbel et al, 2021), and may have significant effects on population dynamics, through negative density-dependent processes (Monnier-Corbel et al, 2022). Overall, our results are in line with the hypothesis that the upper limit of the triangular relationship indicates the maximum abundance that a population can achieve, and could be interpreted as a surrogate for environmental carrying capacity (VanDerWal et al, 2009;Muñoz et al, 2015;Acevedo et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

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Species Distribution Models predict abundance and its temporal variation in a steppe bird population

Monnier‐Corbel

Robert

Hingrat

et al. 2023

Global Ecology and Conservation

Self Cite

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Species Distribution Models predict abundance and its temporal variation in a steppe bird population

Monnier‐Corbel

Robert

Hingrat

et al. 2023

Global Ecology and Conservation

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“…The Asian Houbara Bustard ( Chlamydotis undulata Jacquin) bird faces extinction due to its higher demand for meat which is considered an aphrodisiac by TEK holders. The species has been declared vulnerable by the IUCN [ 16 ], with a declining rate of 30–49% over three generations [ 17 ]. A subset of the total population of the bird migrates among various countries, including the desert parts of Pakistan, with an estimated population of 2500 individuals during winter [ 18 ].…”

Section: Case Imentioning

confidence: 99%

Traditional ecological knowledge sustains due to poverty and lack of choices rather than thinking about the environment

Abdullah,

Khan

2023

J Ethnobiology Ethnomedicine

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In this debate article, we have tried to discuss Traditional Ecological Knowledge (TEK) and its close link to the available resources and lack of options in the indigenous communities. We came across the article of Hartel et al. where they initiated a discussion on this important but debatable topic of TEK and its merits and demirits for the environment. We believe that this discourse could continue to clarify both sides of the picture. Our research group is working on species facing extinction threats due to extensive utilization, leading to overexploitation of the taxa, which the TEK seldom cares for. We are of the opinion that the marginalized tribal communities living around the globe extensively use some of the species and natural resources for their food, fodder, fiber, shelter, energy, health and other benefits, irrespective of their conservation needs, and many other ecosystem services. They have to sustain their basic live’s needs from the resources available for their livelihood. They collect economically important medicinal and other species in large quantities to gain higher earnings, rather than thinking of the issues faced by them. Hence, we believe that the continuity and utilization of TEK are driven by poverty and lack of choices rather than positive environmental values, historically. Nevertheless, those communities sometimes have their local system of protection which sometimes works very well or otherwise with the passage of time and the formation of government-driven regulations in the recent past, TEK itself has lost its real sense especially, related to conservation and management. Therefore, TEK could be linked with existing research-based policies and regulations for long-lasting benefits to the environment and its sustainable future. Such bridging can benifit all the stake hoders—the TEK holders, regulatory bodies, government agencies and many more. This debate can lead to a positive and critical discourse towards the clarification of the conundrum under consideration as well as creation of more questions hyptheses related to TEK.

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Precipitation and female experience are major determinants of the breeding performance of Canarian houbara bustards

Alonso,

Abril-Colón,

Ucero

et al. 2024

Wildlife Biology

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Precipitation is one of the main triggers of reproduction in desert‐breeding birds. The unpredictability of rainfall patterns in arid environments has led species to adapt their breeding effort to episodes of abundant food after rainfall. The response is not the same for all individuals in a population, and may vary especially with the age and experience of each female. Here we investigate the effects of precipitation, temperature, body size and breeding experience, among other variables, on reproductive parameters of 20 females of Canarian houbara bustard (Chlamydotis undulata fuertaventurae), an endangered desert bird endemic of the eastern Canary Islands. Precipitation and breeding experience were the main determinants of female breeding performance. Higher rainfall determined an increase in nesting rate, and earlier autumn rains caused an advancement of nesting to October, allowing the breeding season to be extended to eight months. This favoured an extraordinary increase in productivity in more rainy breeding seasons, with 15 times more females nesting in the two most rainy winters than in dry years. In addition, females with more breeding experience showed a higher tendency to breed, higher nest attempt and fledging success, and longer breeding season, which allowed them to rear more chicks. A female even double brooded successfully in the same season, which, considering that chicks remain with the mother for up to six months, indicates a great capacity to optimise reproductive investment, by adapting to highly variable rainfall regimes. In recent decades, the eastern Canary Islands have undergone a process of aridification, and climate models predict a medium‐term increase in the frequency and duration of drought periods. Thus, Canarian houbaras are particularly vulnerable to climate change, so measures are urgently needed to reduce their mortality and improve the quality of their habitat, in order to favour their reproduction and prevent their extinction.

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Density-dependence of reproductive success in a Houbara bustard population

Cited by 4 publications

References 81 publications

Species Distribution Models predict abundance and its temporal variation in a steppe bird population

Species Distribution Models predict abundance and its temporal variation in a steppe bird population

Traditional ecological knowledge sustains due to poverty and lack of choices rather than thinking about the environment

Precipitation and female experience are major determinants of the breeding performance of Canarian houbara bustards

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