Metabarcoding, stables isotopes, and tracking: unraveling the trophic ecology of a winter-breeding storm petrel (Hydrobates castro) with a multimethod approach

Carreiro, Ana R.; Paiva, Vítor H.; Medeiros, Renata; Franklin, Kirsty A.; Oliveira, Nuno; Fagundes, Ana Isabel; Ramos, Jaime A.

doi:10.1007/s00227-019-3626-x

Cited by 18 publications

(20 citation statements)

References 68 publications

(89 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Technological advances now provide an opportunity to investigate the linkages between individuals' spatial movements, habitat use, and diet, not previously possible for smaller terrestrial species (Carreiro et al., 2020; Groom et al., 2017). Investigating these linkages by combining multiple modern techniques will allow for deeper insights into the ecology of difficult‐to‐study species than would be possible from any one technique alone (Groom et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

DNA diet profiles with high‐resolution animal tracking data reveal levels of prey selection relative to habitat choice in a crepuscular insectivorous bird

Evens

Franklin

Henderson

et al. 2020

Ecology and Evolution

View full text Add to dashboard Cite

The global decline of many insect communities (Sánchez-Bayo & Wyckhuys, 2019; Saunders et al., 2020; Wagner, 2020) is negatively affecting higher trophic levels such as mammals, amphibians, and birds (Hallmann et al., 2017). Populations of avian aerial insectivores, such as swallows, swifts, and nightjars, are believed to be declining due to the loss of their prey (Ng et al., 2018; Smith et al., 2015). In most cases, the diet composition of these predatory species is unknown and it is still unclear when and where they collect their food within their summer home-range. With the advent of modern tracking technologies and molecular techniques, we have the opportunity to combine information on the space use of such species (

show abstract

Section: Introductionmentioning

confidence: 99%

DNA diet profiles with high‐resolution animal tracking data reveal levels of prey selection relative to habitat choice in a crepuscular insectivorous bird

Evens

Franklin

Henderson

et al. 2020

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Males exhibited higher δ 13 C and δ 15 N values, and larger isotopic niches compared to females, presumably caused by spatial sexual segregation and exploitation of areas of contrasting environmental conditions [ 34 ]. In the Madeiran storm-petrel ( Hydrobates castro ) δ 15 N values differed between sexes during the non-breeding period, with females having lower δ 15 N values than males, possibly caused by intersexual differences in distribution during the non-breeding season, or as a result of differences in diet between sexes or differences in the relative amount of different prey taken [ 35 ]. However, in Canadian LSP populations, no sexual isotopic segregation was found [ 86 ].…”

Section: Discussionmentioning

confidence: 99%

“…A study on several Procellariiformes species showed that in larger, size-dimorphic, species δ 13 C values in females were higher than in males, suggesting a more northerly distribution, while no isotopic differences were found in species not displaying sexual dimorphism [ 33 ]. In storm-petrels, sexual isotopic segregation was previously found in several species [ 34 , 35 ], but not all [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Birds of a feather moult together: Differences in moulting distribution of four species of storm-petrels

et al. 2021

View full text Add to dashboard Cite

The non-breeding period of pelagic seabirds, and particularly the moulting stage, is an important, but understudied part of their annual cycle as they are hardly accessible outside of the breeding period. Knowledge about the moulting ecology of seabirds is important to understand the challenges they face outside and within the breeding season. Here, we combined stable carbon (δ13C) and oxygen (δ18O) signatures of rectrices grown during the non-breeding period of two pairs of storm-petrel species breeding in the northern (European storm-petrel, Hydrobates pelagicus, ESP; Leach’s storm-petrel, Hydrobates leucorhous, LSP) and southern (black-bellied storm-petrel, Fregetta tropica, BBSP; Wilson’s storm-petrel, Oceanites oceanicus, WSP) hemispheres to determine differences in moulting ranges within and between species. To understand clustering patterns in δ13C and δ18O moulting signatures, we examined various variables: species, sexes, years, morphologies (feather growth rate, body mass, tarsus length, wing length) and δ15N. We found that different factors could explain the differences within and between the four species. We additionally employed a geographical distribution prediction model based on oceanic δ13C and δ18O isoscapes, combined with chlorophyll-a concentrations and observational data to predict potential moulting areas of the sampled feather type. The northern species were predicted to moult in temperate and tropical Atlantic zones. BBSP was predicted to moult on the southern hemisphere north of the Southern Ocean, while WSP was predicted to moult further North, including in the Arctic and northern Pacific. While moulting distribution can only be estimated on large geographical scales using δ13C and δ18O, validating predictive outcomes with food availability proxies and observational data may provide valuable insights into important moulting grounds. Establishing those, in turn, is important for conservation management of elusive pelagic seabirds.

show abstract

“…and little bustards (Tetrax tetra) 38,39 . Significant sex-dependent food preference or intersexual plasticity in the diet has been observed in different animals, such as storm petrels, oystercatchers, grouses, crows, minks, bats, and capuchins [40][41][42][43][44][45][46] . An alternative explanation for individual dietary variation is the foraging proficiency of individuals.…”

Section: Dietary Composition Variation Between Roosting Groupsmentioning

confidence: 99%

DNA metabarcoding reveals the dietary composition in the endangered black-faced spoonbill

Huang

Poon

Wong

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Extensive loss of natural wetlands caused by changes in land use largely diminishes the food resources essential for the survival of migratory waterbirds. Globally, the decline in waterbird populations in East Asia is the most serious, with 64% of these populations showing a decreasing trend. In this study, we applied DNA metabarcoding to examine the spatiotemporal variations and diversities in the dietary compositions of migratory waterbirds in a natural/artificial wetland complex in Asia. By investigating 110 fecal samples from the endangered black-faced spoonbill (Platalea minor) wintering in the wetland, our results show that P. minor had a broad dietary spectrum. The birds fed on at least 26 species in the classes Actinopterygii and Malacostraca, with Mugiliformes, Cichliformes, and Gobiiformes being the main taxa in their diets. Our results also demonstrated clear patterns of the spatiotemporal variations between the roosting groups and intraspecific variations between the individuals, which potentially reflect some of their feeding habits, and the probable usage of different habitat types in the wetland complex. Using high-throughput sequencing, we were able to elucidate the food resources that are critical to P. minor non-invasively, this method can also be used to provide invaluable information for the conservation of many other waterbird species.

show abstract

Metabarcoding, stables isotopes, and tracking: unraveling the trophic ecology of a winter-breeding storm petrel (Hydrobates castro) with a multimethod approach

Abstract: stables isotopes, and tracking: unraveling the trophic ecology of a winter-breeding storm petrel (Hydrobates castro) with a multimethod approach. Marine Biology 167 ( 14) , -

Cited by 18 publications

References 68 publications

DNA diet profiles with high‐resolution animal tracking data reveal levels of prey selection relative to habitat choice in a crepuscular insectivorous bird

DNA diet profiles with high‐resolution animal tracking data reveal levels of prey selection relative to habitat choice in a crepuscular insectivorous bird

Birds of a feather moult together: Differences in moulting distribution of four species of storm-petrels

DNA metabarcoding reveals the dietary composition in the endangered black-faced spoonbill

Contact Info

Product

Resources

About