Understanding Variation in Extra-Pair Paternity in Birds: A Focus on Neotropical Birds

Ferretti, Valentina

doi:10.1007/978-3-030-14280-3_2

Cited by 4 publications

(2 citation statements)

References 75 publications

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“…These differences have led some to argue that while EPP might represent the typical mating strategy for temperate species, genetic monogamy should prevail among tropical species (Stutchbury and Morton 2001, 2008). However, studies of tropical species are too few to detect clear patterns; more estimates of EPP are needed before such generalizations can be made (Macedo et al 2008, Bonier et al 2014, Ferretti 2019, Valcu et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Extra‐pair paternity correlates with genetic diversity, but not breeding density, in a Neotropical passerine, the black catbird

LaPergola

Riehl

Martı́nez-Gómez

et al. 2022

Journal of Avian Biology

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The frequency of extra‐pair paternity (EPP) varies widely across socially monogamous birds, but the proximate mechanisms driving this variation remain unclear. In this study, we tested two major factors hypothesized to influence extra‐pair mating – breeding density and genetic diversity – by comparing genetic mating patterns in two populations of black catbirds Melanoptila glabrirostris. This Neotropical songbird is endemic to the Yucatán Peninsula, including eastern Mexico, and its offshore islands. We sampled one mainland (Sian Ka'an Biosphere Reserve) and one island (Isla Cozumel) population and used single‐nucleotide polymorphisms (SNPs) to quantify heterozygosity and genetic parentage over two breeding seasons. Moderate levels of EPP occurred in both populations (9.5–35% of offspring and 17–45% of nests). Contrary to predictions, breeding density did not affect EPP: although breeding densities were much higher on the mainland than on the island, EPP rates did not differ between populations, and local breeding density was not correlated with EPP at individual nests. In contrast, partial support emerged for the hypothesis that genetic diversity influences EPP: extra‐pair offspring were more heterozygous than within‐pair offspring. However, the two populations did not differ in genetic diversity, and neither the heterozygosity of social fathers nor within‐pair relatedness predicted EPP. These results are consistent with recent comparative studies suggesting that breeding density is not a critical driver of EPP rates, and that not all tropical songbirds exhibit low rates of EPP.

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Section: Introductionmentioning

confidence: 99%

Extra‐pair paternity correlates with genetic diversity, but not breeding density, in a Neotropical passerine, the black catbird

LaPergola

Riehl

Martı́nez-Gómez

et al. 2022

Journal of Avian Biology

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“…Here we present a comprehensive analysis evaluating the individual and combined effects of multiple intrinsic and extrinsic factors on the extinction risk of neotropical birds. Extinction risk or conservation status of neotropical birds have been studied before, but previous work primarily focused on specific species or groups (e.g., Olah et al 2016, Lees et al 2021, localities (e.g., Stouffer et al 2006, Lees and Peres 2008, Devenish et al 2020, or a few traits and factors (e.g., Lees and Peres 2008, Ferretti 2019, Prieto-Torres et al 2021. Collectively, previous work has provided useful insights, but only by expanding the taxonomic and geographic scales and testing diverse intrinsic and extrinsic factors can we hope to gain a more holistic picture of generalized patterns.…”

Section: Introductionmentioning

confidence: 99%

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Soto-Saravia¹,

Garrido-Cayul²,

Avaria‐Llautureo³

et al. 2021

ACE

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Neotropical ornithology: Reckoning with historical assumptions, removing systemic barriers, and reimagining the future

Soares

Cockle

Inzunza

et al. 2023

Ornithological Applications

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A major barrier to advancing ornithology is the systemic exclusion of professionals from the Global South. A recent special feature, Advances in Neotropical Ornithology, and a shortfalls analysis therein, unintentionally followed a long-standing pattern of highlighting individuals, knowledge, and views from the Global North, while largely omitting the perspectives of people based within the Neotropics. Here, we review current strengths and opportunities in the practice of Neotropical ornithology. Further, we discuss problems with assessing the state of Neotropical ornithology through a northern lens, including discovery narratives, incomplete (and biased) understanding of history and advances, and the promotion of agendas that, while currently popular in the north, may not fit the needs and realities of Neotropical research. We argue that future advances in Neotropical ornithology will critically depend on identifying and addressing the systemic barriers that hold back ornithologists who live and work in the Neotropics: unreliable and limited funding, exclusion from international research leadership, restricted dissemination of knowledge (e.g., through language hegemony and citation bias), and logistical barriers. Moving forward, we must examine and acknowledge the colonial roots of our discipline, and explicitly promote anti-colonial agendas for research, training, and conservation. We invite our colleagues within and beyond the Neotropics to join us in creating new models of governance that establish research priorities with vigorous participation of ornithologists and communities within the Neotropical region. To include a diversity of perspectives, we must systemically address discrimination and bias rooted in the socioeconomic class system, anti-Blackness, anti-Brownness, anti-Indigeneity, misogyny, homophobia, tokenism, and ableism. Instead of seeking individual excellence and rewarding top-down leadership, institutions in the North and South can promote collective leadership. In adopting these approaches, we, ornithologists, will join a community of researchers across academia building new paradigms that can reconcile our relationships and transform science. Spanish and Portuguese translations are available in the Supplementary Material.

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Understanding Variation in Extra-Pair Paternity in Birds: A Focus on Neotropical Birds

Cited by 4 publications

References 75 publications

Extra‐pair paternity correlates with genetic diversity, but not breeding density, in a Neotropical passerine, the black catbird

Extra‐pair paternity correlates with genetic diversity, but not breeding density, in a Neotropical passerine, the black catbird

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Neotropical ornithology: Reckoning with historical assumptions, removing systemic barriers, and reimagining the future

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