Storm-Petrels of the Eastern Pacific Ocean: Species Assembly and Diversity along Marine Habitat Gradients

Spear, Larry B.; Ainley, David G.

doi:10.2307/40166847

Cited by 29 publications

(21 citation statements)

References 58 publications

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“…, Spear et al. , Spear and Ainley ). Similarly, post‐breeding Leach's Storm‐Petrels tracked from colonies in Newfoundland and Nova Scotia, Canada, spent their non‐breeding period at tropical latitudes in the South Atlantic (Pollet et al.…”

Section: Discussionmentioning

confidence: 97%

Year-round movements of sympatric Fork-tailed (Oceanodroma furcata) and Leach's (O. leucorhoa) storm-petrels

Halpin¹,

Pollet

Lee

et al. 2018

J. Field Ornithol.

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Long-distance movements are characteristic of most seabirds in the order Procellariiformes. However, little is known about the migration and foraging ranges of many of the smaller species in this order, especially storm-petrels (Hydrobatidae). We used Global Location Sensors to document the year-round movements of sympatrically breeding Fork-tailed Storm-Petrels (Oceanodroma furcata) and Leach's Storm-Petrels (O. leucorhoa) from the Gillam Islands located northwest of Vancouver Island, British Columbia, Canada. In 2016, breeding Fork-tailed (N = 5) and Leach's (N = 2) storm-petrels traveled maximum distances of~1550-1600 km from their colony to a region that has a wide shelf with major canyons creating a highly productive foraging area. After the breeding season, Fork-tailed Storm-Petrels (N = 2) traveled to similar areas west of the Gillam Islands, a maximum distance of~3600 km from the breeding colony, and remained in the North Pacific Ocean and north of the Subarctic Boundary for an average of 5.4 mo. Postbreeding Leach's Storm-Petrels (N = 2) moved south to the Eastern Tropical Pacific, west of central Mexico, Ecuador, and northern Peru, an estimated maximum distance of~6700 km from their breeding colony, and remained there for an average of 7.2 mo. Carbon (d 13 C) and nitrogen (d 15 N) stable isotope analyses of feathers revealed niche separation between Fork-tailed (N = 21) and Leach's (N = 53) storm-petrels. The wide range of d 15 N values in the feathers of Leach's Storm-Petrels (N = 53) suggests that they foraged at a variety of trophic levels during the non-breeding season. Our results demonstrate that storm-petrels have large core foraging areas and occupy vast oceanic areas in the Pacific during their annual cycle. However, given the coarse precision of Global Location Sensors, additional study is needed to identify the specific areas used by each species during both breeding and non-breeding periods.RESUMEN. Movimientos anuales de los simp atricos Pa ıño rabihorcado (Oceanodroma furcata) y Pa ıño boreal (O. leucorhoa) Los moviemientos a larga distancia son caracter ısticos de la mayor ıa de las aves marinas del orden Procellariiformes. Aun as ı, poco se sabe de la migraci on y los rangos de forrajeo de las especies m as pequeñas del orden, especialmente los petreles de las tormentas o pa ıños (Hydrobatidae). Usamos Sensores de Ubicaci on Global para documentar los movimientos durante todo el año de dos especies que cr ıan simp atricamente, el Pa ıño rabihorcado (Oceanodroma furcata) y el Pa ıño boreal (O. leucorhoa), desde las Islas Gillam ubicadas al noroeste de la Isla de Vancouver, Columbia Brit anica, Canad a. En 2016, los pa ıños rabihorcados (N = 5) y boreales (N = 2) reproductivamente activos viajaron distancias m aximas de~1550-1600 km desde su colonia a una regi on que tiene una placa ancha con grandes cañones que crean un area de forrajeo altamente productiva. Luego de la temporada reproductiva, los pa ıño rabihorcados (N = 2) viajaron a areas similares al oeste de las Islas Gillam, una dis...

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Section: Discussionmentioning

confidence: 97%

Year-round movements of sympatric Fork-tailed (Oceanodroma furcata) and Leach's (O. leucorhoa) storm-petrels

Halpin¹,

Pollet

Lee

et al. 2018

J. Field Ornithol.

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“…Sight report not accepted, identification questionable (3/4; HI2010-001). Wedge-rumped Storm-Petrels breed in the Galapagos Islands and along the South American coast and forage widely at sea in the eastern Pacific Ocean, as close as 600 km south-southeast of Hawaii Island (Spear and Ainley 2007). One was reported by an experienced observer during surveys for cetaceans and marine birds by the SWFSC, 325 km southeast of Hawaii Island, on 9 Oct 2010.…”

Section: Photos By Naomi Worcestermentioning

confidence: 99%

First Report of the Hawaii Bird Records Committee

VanderWerf¹,

David²,

Donaldson³

et al. 2018

WBirds

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The Hawaii Bird Records Committee (HBRC) was formed in 2014 to provide a formal venue for reviewing bird reports in the Hawaiian Islands and to maintain and periodically update the checklist of birds of the Hawaiian Islands. This is the first report of the HBRC. From 2014 to 2016, the HBRC reviewed 46 reports involving 33 species, including 20 species not recorded previously in the Hawaiian Islands, nine species reported previously that were based only on visual documentation at the time, one re-evaluation of a species pair reported previously, two introduced species whose establishment was questioned, and one species previously regarded as hypothetical.

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“…In the Azores, hot and cool populations differ in neutral genetic markers as well as vocalizations, morphology and diet, suggesting adaptation by time (Bolton et al., ). Genetically differentiated seasonal populations also exist in the Leach's storm‐petrel ( H. leucorhoa; Friesen et al., ) and possibly other storm‐petrel species (Spear & Ainley, ).…”

Section: Role Of Allochrony In Speciationmentioning

confidence: 99%

The role of allochrony in speciation

2017

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The importance of sympatric speciation -the evolution of reproductive isolation between codistributed conspecific individuals -in generating biodiversity is highly controversial. Allochrony, or differences in breeding time (phenology) between conspecific individuals, has the potential to lead to reproductive isolation and therefore speciation. We critically review the literature to test the importance of allochronic speciation over the three timescales over which allochrony can occur -over the day, between seasons or between years -and explore what is known about genomic mechanisms underlying allochrony in the diverse taxa in which it is found. We found that allochrony can be a key contributor to reproductive isolation, especially if populations have little overlap in breeding time and therefore little potential for gene flow, and may sometimes be the initial or key driver of speciation. Shifts in phenology can be caused by several factors, including a new ecological opportunity, environmental change, or reinforcement. The underlying genomic basis of allochrony has been studied mostly in insects, highlighting the need for genomic studies in other taxa; nonetheless, results to date indicate that several cases of allochrony involve changes in circadian genes. This review provides the first comprehensive discussion of the role of allochrony in speciation and demonstrates that allochrony as a contributor to divergence may be more widespread than previously thought.Understanding genomic changes and adaptations allowing organisms to breed at new times may be key in the light of phenological changes required under climate change. K E Y W O R D Sallochronic speciation, breeding time, magic traits, phenology, speciation with gene flow, sympatric speciation

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Storm-Petrels of the Eastern Pacific Ocean: Species Assembly and Diversity along Marine Habitat Gradients

Cited by 29 publications

References 58 publications

Year-round movements of sympatric Fork-tailed (Oceanodroma furcata) and Leach's (O. leucorhoa) storm-petrels

Year-round movements of sympatric Fork-tailed (Oceanodroma furcata) and Leach's (O. leucorhoa) storm-petrels

First Report of the Hawaii Bird Records Committee

The role of allochrony in speciation

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