Phylogeography of the Variable Antshrike (Thamnophilus caerulescens), a South American passerine distributed along multiple environmental gradients

Bolívar-Leguizamón, Sergio D.; Silveira, Luís Fábio; Derryberry, Elizabeth P.; Brumfield, Robb T.; Bravo, Gustavo A.

doi:10.1016/j.ympev.2020.106810

Cited by 8 publications

(18 citation statements)

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“…However, in lieu of exact point inferences, the main features of the model (i.e., relative changes, overall size changes, directionality, and broad patterns in demographic history) can be accomplished with confidence through bootstrapping simulated data under the best-model demographic scenario (57). Thus, due to the uncertainty in determining absolute Ne values, reporting on the broad demographic trends and relative changes in Ne is the accepted approach when using coalescent-based modeling to estimate demography from the site frequency spectrum (35)(36)(37)(38)(39)(40)(58)(59)(60)(61). After removing related individuals (n = 5 of 96) and drawing one random SNP per locus, we used 11,890 -26,148 SNPs per species (median = 18,175, Table S1) for demographic inference analysis using MOMI2, an efficient and scalable demographic inference software that can handle complex datasets (23,24).…”

Section: Resultsmentioning

confidence: 99%

“…Recent studies have also begun modelling comparative demographic processes across multiple taxa simultaneously (20, [27][28][29][30], including eusocial bees (31) and social spiders (14). These and other studies examine relative patterns of Ne change through time, rather than simply comparing absolute estimates at specific time points (32)(33)(34)(35)(36)(37)(38)(39)(40)(41), an approach that would enable us to test alternative demographic scenarios in eusocial lineages. Moreover, the broad use of coalescent-based methods has shown its robustness as a population genetic tool and can accurately select models and estimate parameters using as few as 3-15 individuals and 10,000 -50,000 single nucleotide polymorphism (SNP) loci (42,43).…”

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confidence: 99%

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Demographic inference provides insights into the extirpation and ecological dominance of eusocial snapping shrimps

Chak

Harris

Hultgren

et al. 2022

Journal of Heredity

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Although eusocial animals often achieve ecological dominance in the ecosystems where they occur, many populations are unstable, resulting in local extinction. Both patterns may be linked to the characteristic demography of eusocial species—high reproductive skew and reproductive division of labor support stable effective population sizes that make eusocial groups more competitive in some species, but also lower effective population sizes that increase susceptibility to population collapse in others. Here, we examine the relationship between demography and social organization in Synalpheus snapping shrimps, a group in which eusociality has evolved recently and repeatedly. We show using coalescent demographic modelling that eusocial species have had lower but more stable effective population sizes across 100,000 generations. Our results are consistent with the idea that stable population sizes may enable competitive dominance in eusocial shrimps, but they also suggest that recent population declines are likely caused by eusocial shrimps’ heightened sensitivity to environmental changes, perhaps as a result of their low effective population sizes and localized dispersal. Thus, although the unique life histories and demography of eusocial shrimps have likely contributed to their persistence and ecological dominance over evolutionary timescales, these social traits may also make them vulnerable to contemporary environmental change.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Demographic inference provides insights into the extirpation and ecological dominance of eusocial snapping shrimps

Chak

Harris

Hultgren

et al. 2022

Journal of Heredity

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“…Also, since 2010 researchers from the Laboratório de Bioecologia e Conservação de Aves Neotropicais (LABECAN) at the Federal University of Alagoas (UFAL) have been monitoring birds in the largest forest fragment of the Murici Ecological Station, and birds collected therein have been deposited at the Museu de História Natural da UFAL (MHNAL), in Maceió. Results from these 1999-2020 expeditions have served as the basis for a number of studies (e.g., Silveira & Olmos, 2003;Silveira et al, 2003a, b;Dénes et al, 2011;Batalha-Filho et al, 2013Lobo-Araújo et al, 2013;Pereira et al, 2014bPereira et al, , 2019aRêgo et al, 2014;Thom & Aleixo, 2015;Tonetti et al, 2017;Campos et al, 2018;Bolívar-Leguizamón et al, 2020;Harvey et al, 2020;Bocalini et al, 2021;Carvalho et al, 2021;Dickens et al, 2021;Francisco et al, 2021;Gonçalves & Efe, 2022). The number of ornithological surveys (e.g., Cabral et al, 2006;Araujo & Rodrigues, 2011;Lyra-Neves et al, 2012;Portes et al, 2018); many notes on specific records for the state have also been published (e.g., Silva e Silva, 1996;Olmos, 2002;Sousa et al, 2005;Mestre, 2007;Lobo-Araújo et al, 2008;Patrial et al, 2011;Pereira et al, 2012;Leal et al, 2013) and birdwatchers have also been producing many new records for the state (WikiAves, 2021).…”

Section: See the Accounts Of Hypoedaleus Guttatus Corythopis Delaland...mentioning

confidence: 99%

An annotated avian inventory of the Brazilian state of Alagoas, one of the world’s most threatened avifauna

et al. 2022

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The northeast Brazilian state of Alagoas harbors a rather diverse, and one of the world’s most threatened, avifauna. However, the knowledge about its avifauna is currently scattered on several publications and the state’s birds have never been comprehensively assembled into a checklist. To fill this shortfall, we present here the first critical review of all available bird records for the state of Alagoas. We present a list of 520 bird species recorded in the state, of which 503 are supported by documentary evidence. We also comment on the distribution, migratory movements, taxonomy and conservation of the region’s avifauna and correct previous misidentified or invalid records for the state.

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“…However, this route lacks phylogeographical evidence (Baker et al., 2020). An additional connection route was suggested through the southern Cerrado and the Chaco bridging the southeastern AF and western AM (Batalha‐Filho et al., 2013; Bigarella et al., 1975; Bolívar‐Leguizamón et al., 2020; Cheng et al., 2013; Costa, 2003; Por, 1992; Prates et al., 2017). Batalha‐Filho et al.…”

Section: Introductionmentioning

confidence: 99%

Amazonian colonization from the Atlantic Forest: New perspectives on the connections of South American tropical forests

Bocalini,

Bolívar‐Leguizamón,

Silveira

et al. 2023

Molecular Ecology

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An open and dry vegetation belt separates Amazonia (AM) and the Atlantic Forest (AF). Evidence from palaeoclimatic and phylogenetic studies suggests past connections between these forests during cycles of increased humidity through the formation of forest corridors. The distinctive northern AF avifauna is known to have affinities both with AM and the southern AF. Still, the extent of how these two regions contributed to the assemblage of this avifauna remains poorly understood. Using historical demographic analyses and comparative phylogeography based on sub‐genomic genetic sampling, we assessed how past connections between AM and AF led to shared vicariance and colonization events in four avian AF endemic taxa. Our results supported the occurrence of humid forest corridors promoting the contact between AF and AM populations and suggested two vicariant events and two colonization events from AF to AM. Population divergences were mostly non‐synchronous and occurred multiple times during the Pleistocene. Historical gene flow was prevalent across study groups, supporting migration flows after the initial separation between AM and AF – a pattern previously unknown in birds between these regions. Idiosyncratic histories and divergent demographic syndromes suggest that organisms' responses to climate‐driven habitat shifts broadly depend on their ecological attributes. This study strengthened our knowledge of past connections between AM and AF and provided demographic scenarios amenable for testing in other groups of co‐distributed organisms.

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Phylogeography of the Variable Antshrike (Thamnophilus caerulescens), a South American passerine distributed along multiple environmental gradients

Cited by 8 publications

References 117 publications

Demographic inference provides insights into the extirpation and ecological dominance of eusocial snapping shrimps

Demographic inference provides insights into the extirpation and ecological dominance of eusocial snapping shrimps

An annotated avian inventory of the Brazilian state of Alagoas, one of the world’s most threatened avifauna

Amazonian colonization from the Atlantic Forest: New perspectives on the connections of South American tropical forests

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