Demographic history of Heermann's Gull (<i>Larus heermanni</i>) from late Quaternary to present: Effects of past climate change in the Gulf of California

Ruíz, Enrico A.; Velarde, Enriqueta; Aguilar, Andres

doi:10.1642/auk-16-57.1

Cited by 4 publications

(9 citation statements)

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“…Cardonosa Island is in the Midriff Islands Region of the Gulf of California (28 • 53 16 N and 113 • 01 51 W) [46,49]. It is an irregularly flattened island, 483 m long, 292 m wide, 18 m high, and ~0.14 km 2 in area [43].…”

Section: Study Areamentioning

confidence: 99%

“…Rasa Island is located 4 nautical miles SE of Cardonosa, in the same biogeographic region (28 • 49 29 N and 112 • 58 50 W) [48][49][50]. It is a young flattened volcanic island (~10,000 years), 1170 m long, 703 m wide, 30 m high, and ~0.68 km 2 in area [43,54].…”

Section: Study Areamentioning

confidence: 99%

“…DNA extraction, PCR amplification and sequencing was performed only with samples from Isabel Island (n = 10), which in turn were the most recently collected in 2017. All other sequences were those from a previous study by Ruiz et al [49] and downloaded from Gen-Bank (see below). Mitochondrial cytochrome b (Cyt-b) sequences were obtained from DNA isolated from ~60 µL of blood from the ulnar vein of Heermann's Gulls using the DNeasy ® Blood & Tissue kit (QIAGEN, Hilden, Germany).…”

Section: Dna Extraction Pcr Amplification Sequencing and Analyses Of ...mentioning

confidence: 99%

“…Mitochondrial cytochrome b (Cyt-b) sequences were obtained from DNA isolated from ~60 µL of blood from the ulnar vein of Heermann's Gulls using the DNeasy ® Blood & Tissue kit (QIAGEN, Hilden, Germany). PCR reactions were performed in a final volume of 25 µL containing 50 ng of genomic DNA (1 µL), 10 mg mL −1 BSA (1 µL), DMSO 2% (1 µL), deionized water (10 µL), 2× Kapa Taq ReadyMix (Kapa Biosystems, R&D Cape Town, ZA) (10 µL), 10 mM primers L14841 (1 µL), and 10 mM primers H16065 (1µL) [49]. The PCR program and primers were previously described by Ruiz et al [49], and the PCR products were outsourced for sequencing to Macrogen Inc. (Seoul, Korea).…”

Section: Dna Extraction Pcr Amplification Sequencing and Analyses Of ...mentioning

confidence: 99%

“…Historically, this gull has been reported nesting on several islands in the Pacific Ocean, although presently do so in only a few of them [47,48]. The two largest active colonies are in the Rasa (~130,000 pairs) and Cardonosa (~4000 pairs) islands, both located in the Midriff Islands Region [49]. Another important nesting site is Isabel Island (~400 pairs), located in the Mexican Province region [48].…”

Section: Introductionmentioning

confidence: 99%

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Strong Philopatry, Isolation by Distance, and Local Habitat Have Promoted Genetic Structure in Heermann’s Gull

et al. 2022

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Philopatry can promote genetic differentiation among populations but remains undescribed in many seabirds. Hence, we explored such associations in Heermann’s Gull. Philopatry was observed monitoring 998 gulls in Rasa Island, while genetic differences were examined in the Cardonosa, Rasa, and Isabel islands using the cytochrome b of 296 gulls. Adults returned repeatedly to its natal valley or to a very close distance from it under different modelled hypotheses. Likewise, the interaction between sex and distance indicated significant male-biased philopatry. Besides, low to high genetic differentiation was observed between the Rasa and Cardonosa islands (ΦST = 0–0.22) (both in the Midriff Islands Region), but higher genetic differentiation against Isabel Island (ΦST > 0.25) (in the Mexican Province region). Consistently, genetic structure among regions was observed using different approaches (AMOVA: ΦCT = 0.49; SAMOVA: FCT = 0.49; and BAPS: K = 2). Similarly, a pattern of isolation by distance (rM= 0.82, p = 0.03), agrees with lower estimates of scaled migration rates between regions than among islands of the same region. Overall, it is suggested that the genetic structure found in Heermann’s Gull has been promoted by physical and behavioral barriers.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Dna Extraction Pcr Amplification Sequencing and Analyses Of ...mentioning

confidence: 99%

Section: Dna Extraction Pcr Amplification Sequencing and Analyses Of ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Strong Philopatry, Isolation by Distance, and Local Habitat Have Promoted Genetic Structure in Heermann’s Gull

et al. 2022

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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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Seabird clues to ecosystem health

Velarde

Anderson

Ezcurra

2019

Science

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Demographic history of Heermann's Gull (Larus heermanni) from late Quaternary to present: Effects of past climate change in the Gulf of California

Cited by 4 publications

References 58 publications

Strong Philopatry, Isolation by Distance, and Local Habitat Have Promoted Genetic Structure in Heermann’s Gull

Strong Philopatry, Isolation by Distance, and Local Habitat Have Promoted Genetic Structure in Heermann’s Gull

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

Seabird clues to ecosystem health

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