Determinants of natal dispersal distances in North American birds

Chu, Jonathan J.; Claramunt, Santiago

doi:10.1002/ece3.9789

Cited by 9 publications

(10 citation statements)

References 125 publications

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“…However, high flight efficiency and the capability to cover large distances during migration do not necessarily imply high dispersal distances or rates: dispersal can indeed be limited in even highly mobile birds, such as long‐distance migrants, in case of high philopatry (e.g., Ceresa et al., 2016; García et al., 2021; Hansson et al., 2002; Rönkä et al., 2021). The relationship between migration habits and dispersal ability in birds is still not fully understood, and it is possible that they are decoupled (Chu & Claramunt, 2023). Limited dispersal due to philopatry likely occurs also in our study system, given the detection of closely related individuals within the same breeding areas (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

Restricted dispersal and inbreeding in a high‐elevation bird across the ‘sky islands’ of the European Alps

Ceresa,

Brambilla,

Kvist

et al. 2023

Journal of Biogeography

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AimHigh‐elevation specialist species are threatened by climate change and habitat loss, and their distributions are becoming increasingly reduced and fragmented. In such a context, dispersal ability is crucial to maintain gene flow among patches of suitable habitat. However, information about dispersal is often lacking for these species, especially for those taxa that are usually considered as good dispersers such as birds. We adopted a landscape genomics approach to investigate dispersal in a climate‐sensitive high‐elevation specialist bird. Our aims were to assess the levels of gene flow within a wide mountain area, and to assess the effects of geographic distance and landscape characteristics on dispersal, by testing the isolation by distance (IBD) hypothesis against the isolation by resistance (IBR) hypothesis.LocationEuropean Alps.Taxon Montifringilla nivalis. MethodsWe sampled individuals from several breeding areas and obtained single nucleotide polymorphism (SNP) data by ddRAD sequencing. We then calculated site‐ and individual level genetic distances and individual inbreeding coefficients. To test IBD versus IBR, we related genetic distances to both geographic distances and different measures of landscape resistance by using maximum likelihood population effects models.ResultsGene flow among breeding areas was partly restricted, and we found support for IBD, indicating that geographic distance limits snowfinch dispersal. Spatial patterns of genetic distances suggested that philopatry strongly contributed to determine the observed IBD. High inbreeding coefficients in several individuals indicated frequent mating among relatives.Main ConclusionsRestricted dispersal and frequent inbreeding within ‘sky island’ systems can also occur in highly mobile species, because their potential ability to cover very large distances can be counteracted by high philopatry levels that are likely related to high dispersal costs. IBD and philopatry will increasingly hinder snowfinch dispersal among suitable areas within the future more restricted and fragmented breeding range, increasing the risks of local extinctions.

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Section: Discussionmentioning

confidence: 99%

Restricted dispersal and inbreeding in a high‐elevation bird across the ‘sky islands’ of the European Alps

Ceresa,

Brambilla,

Kvist

et al. 2023

Journal of Biogeography

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“…Hence, our approach lies between quantifying the capacity of a landscape to foster potential species movement (structural connectivity; Calabrese & Fagan, 2004) and expected realized species movement (functional connectivity; Salgueiro et al, 2021; Tischendorf & Fahrig, 2000). Realized species movement does not only depend on the structure of habitat networks, but also on other external factors such as population dynamics (Chu & Claramunt, 2023), and the behavior of individuals (Nathan et al, 2008; Rayfield et al, 2023). To generate more realistic connectivity estimates, movement traits could be estimated from species traits (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…To generate more realistic connectivity estimates, movement traits could be estimated from species traits (e.g. body mass or wing length; Chu & Claramunt, 2023; Hartfelder et al, 2020) and included in more sophisticated dispersal probability kernels with resistance-weighted distance (McRae et al, 2016; Rayfield et al, 2023) or even in trait-based movement models (Hirt et al, 2018). Alternatively, dispersal could be derived empirically from realized movement trajectories (e.g.…”

Section: Discussionmentioning

confidence: 99%

Rapid evaluation of habitat connectivity change to safeguard multispecies persistence in human-transformed landscapes

Oehri,

Wood,

Touratier

et al. 2023

Preprint

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Protecting habitat connectivity in fragmented landscapes is essential for safeguarding biodiversity and nature’s contributions to people. Following the Post-2020 Kunming-Montreal Global Biodiversity Framework (KM-GBF) of the Convention on Biological Diversity (CBD) there is a clear science-policy need to assess habitat connectivity and track its change over time to inform conservation planning.In response to this need we describe an analytical, multi-indicator and multispecies approach for the rapid assessment of habitat connectivity at fine spatial grain and at the extent of an entire ecoregion. Out of 69 connectivity indicators we found through a literature review, we identified a key-set of nine indicators that align with the Essential Biodiversity Variables framework and that are suitable to guide rapid action for connectivity and conservation targets in the KM-GBF. Using these selected indicators, we mapped and evaluated connectivity change from 2011 to 2021 across the ecoregion of the St-Lawrence Lowlands in Quebec (∼30,000 km2) for seven ecoprofile species representing regional forest habitat needs. For the majority of these ecoprofile species, trends over the last decade indicate a decline in effective connected area and metapopulation carrying capacity, mainly via a division of large contiguous habitat into smaller fragments, whereas total habitat area largely remained unchanged.These results highlight that trends in habitat area and connectivity are not necessarily correlated and the urgent need to conserve and restore connectivity in the St-Lawrence Lowlands, in order to meet regional targets under the KM-GBF. Our general approach enables a comprehensive evaluation of connectivity for regional spatial planning for biodiversity. We develop an R-tool to support this analysis and that can be extended to other conservation planning efforts for connectivity.

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“…There is thus no direct relationship between migration distance and dispersal distance (i.e. movement between birth and first breeding, or between breeding events [ 7 ]; see [ 8 , 9 ]). However, migratory movements may also increase the opportunities to encounter, settle and breed in, locations far from the place of birth or previous breeding [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

The importance of migratory drop-off for island colonization in birds

Dufour,

Sayol,

Cooke

et al. 2024

Proc. R. Soc. B.

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Seasonal migration is an underappreciated driver of animal diversification. Changes in migratory behaviour may favour the establishment of sedentary founder populations and promote speciation if there is sufficient reproductive isolation between sedentary and migratory populations. From a systematic literature review, we here quantify the role of migratory drop-off—the loss of migratory behaviour—in promoting speciation in birds on islands. We identify at least 157 independent colonization events likely initiated by migratory species that led to speciation, including 44 cases among recently extinct species. By comparing, for all islands, the proportion of island endemic species that derived from migratory drop-off with the proportion of migratory species among potential colonizers, we showed that seasonal migration has a larger effect on island endemic richness than direct dispersal. We also found that the role of migration in island colonization increases with the geographic isolation of islands. Furthermore, the success of speciation events depends in part on species biogeographic and ecological factors, here positively associated with greater range size and larger flock sizes. These results highlight the importance of shifts in migratory behaviour in the speciation process and calls for greater consideration of migratory drop-off in the biogeographic distribution of birds.

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Determinants of natal dispersal distances in North American birds

Cited by 9 publications

References 125 publications

Restricted dispersal and inbreeding in a high‐elevation bird across the ‘sky islands’ of the European Alps

Restricted dispersal and inbreeding in a high‐elevation bird across the ‘sky islands’ of the European Alps

Rapid evaluation of habitat connectivity change to safeguard multispecies persistence in human-transformed landscapes

The importance of migratory drop-off for island colonization in birds

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