Breeding Sites, Distribution and Conservation Status of the White-Vented Storm-Petrel Oceanites gracilis in the Atacama Desert

Barros, Rodrigo; Medrano, Fernando; Silva, Rodrigo; Schmitt, Fabrice; Malinarich, Vinko; Terán, Daniel; Peredo, Ronny; Pinto, Cristián F.; Vallverdú, Antulemu; Fuchs, Jérôme; Norambuena, Heraldo V.

doi:10.5253/arde.v108i2.a7

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…However, it is currently not clear to what extent the detection of deep burrows, and non-detection of those occupied by non-breeders, might be mutually incompatible. In situations where burrow depth, or high density of nests prevents the reliable identification of all nests sites, the use of a scent dog may nevertheless be beneficial, in order to indicate the presence of the target species within a much larger area of search, where the occurrence of the species is uncertain (see Barros et al 2020 for a remarkable example of the former, involving scent dogs to locate Elliot's Storm Petrels Oceanites gracilis breeding in the Atacama Desert). In our own study, after the conclusion of the field trials, dog B located a previously unknown sub-colony of Manx Shearwaters on the study island.…”

Section: Discussionmentioning

confidence: 99%

Teaching old dogs and young dogs new tricks: canine scent detection for seabird monitoring

Bolton,

Morgan,

Bolton

et al. 2021

Seabird

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Dogs Canis familiaris have been domesticated for over 11,000 years and have been trained to perform a vast array of tasks. Scent dogs are routinely used to detect elusive animals of conservation concern as well as the presence of invasive nonnative predators. However, a recent review of studies on scent dogs for nature conservation found few peer-reviewed papers on detection of seabirds, and we suggest the potential of scent dogs for seabird monitoring is currently under-utilised. To stimulate wider consideration of the use of scent dogs for seabird monitoring we: (i) document the training, testing and performance of a one-year old Golden Retriever, to detect scent from European Storm Petrels Hydrobates pelagicus, and to differentiate between scent of European Storm Petrels and Manx Shearwaters Puffinus puffinus, and (ii) report on the field performance of a 12-year old Border Collie to detect Manx Shearwaters breeding in natural nest burrows and artificial nest boxes. We show that these individual dogs had a high success rate in locating hidden seabird targets by scent in experimental and field settings and we highlight some of the set-backs encountered during the training process, and their solutions. We show that the detection of occupied Manx Shearwater burrows is dependent on their depth and recent history of occupation. Our results highlight the potential value of scent dogs to establish the presence of particular seabird species at sites where breeding status is currently uncertain, and to map the extent of occupied areas. Further work is needed to validate the use of scent dogs to determine seabird breeding density in real-world situations, where detection probability may be influenced by nest site characteristics and breeding density. We stress the need to involve professionals in the selection, training and testing of scent dogs.

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Section: Discussionmentioning

confidence: 99%

Teaching old dogs and young dogs new tricks: canine scent detection for seabird monitoring

Bolton,

Morgan,

Bolton

et al. 2021

Seabird

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“…Anthropogenic influence is an important factor affecting the nest-site selection of birds [5,20,21]. Some studies indicate that an increase in human activities can negatively affect breeding bird communities, population dynamics [22], and the nest-site selection of Eurasian magpies (Pica pica) and Northern goshawk (Accipiter gentilis) [23,24].…”

Section: Introductionmentioning

confidence: 99%

Water, Food Availability, and Anthropogenic Influence Determine the Nesting-Site Selection of a Desert-Dwelling Bird, Xinjiang Ground-Jay (Podoces biddulphi)

Tong

Blank

et al. 2021

Sustainability

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Nesting-site selection is an important aspect of the breeding process in birds, as it usually determines nesting and breeding successes. Many factors can affect bird nest-site selection, including anthropogenic disturbance. In an extreme desert environment, such as the Taklamakan Desert in China, birds’ survival pressure is high, especially for rare species such as the Xinjiang Ground-jay (Podoces biddulphi). We studied nest-site selection in this species from March 2017 to May 2019. A Chi-square test, independent sample t-test, Mann–Whitney U-test, and generalized linear models were applied to possible nest-site selection factors for Xinjiang Ground-jays. The main determining factors were the distances to human settlements, water, and the edge of the oasis. Xinjiang Ground-jays nested near available water resources for easier access, which is important in arid environments. Individuals chose to nest far from the oasis edges and settlements to increase food availability and reduce interference from human activities, respectively. Overall, water, food availability, and anthropogenic influence were the main factors affecting the nest-site selection of Xinjiang Ground-jays in this study. Therefore, these results suggest that there is a trade-off between survival and reproduction. Further studies are required to verify whether similar site preferences may also apply to other desert-dwelling species.

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Resolving the conflictive phylogenetic relationships of Oceanites (Oceanitidae: Procellariiformes) with the description of a new species

NORAMBUENA,

BARROS,

JARAMILLO

et al. 2024

Zootaxa

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The family Oceanitidae, formerly considered a subfamily of Hydrobatidae, includes all the small storm-petrels of the southern hemisphere. The ancestor-descendent relationships and evolutionary history of one of its genera, Oceanites, have been partially studied, yielding contrasting results. We revised the phylogenetic relationships of this group using Bayesian inference (BI) based on new sequence data of the mitochondrial gene Cytb and linear morphological measurements of all species and five subspecies-level taxa in Oceanites, including a new taxon from the Chilean Andes. Our BI results show that the Oceanites genus is monophyletic and composed of four well-supported clades (posterior probability > 0.95): (1) chilensis; (2) exasperatus; (3) gracilis, pincoyae, and barrosi sp. nov.; and (4) oceanicus and galapagoensis. The species O. chilensis is a basal clade within Oceanites. According to our time-calibrated tree, the split between Oceanites and the other genera in Family Oceanitidae is estimated to be ~35.9 Mya, and the oldest divergence within Oceanites (the split between O. chilensis and other Oceanites) was dated to the early Miocene, around c. 21.3 Mya. The most probable geographic origin of Oceanites is the Southern Ocean. The morphological data suggest continuous size variation between Oceanites taxa, ranging from smallest in gracilis to largest in exasperatus. Based on our phylogenetic hypothesis, and morphological analyses, we suggest elevating to species status the taxa galapagoensis, chilensis, and exasperatus, and we describe a new taxon barrosi sp. nov., thus recognizing a total of seven species within the genus Oceanites.

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Breeding Sites, Distribution and Conservation Status of the White-Vented Storm-Petrel Oceanites gracilis in the Atacama Desert

Cited by 4 publications

References 7 publications

Teaching old dogs and young dogs new tricks: canine scent detection for seabird monitoring

Teaching old dogs and young dogs new tricks: canine scent detection for seabird monitoring

Water, Food Availability, and Anthropogenic Influence Determine the Nesting-Site Selection of a Desert-Dwelling Bird, Xinjiang Ground-Jay (Podoces biddulphi)

Resolving the conflictive phylogenetic relationships of Oceanites (Oceanitidae: Procellariiformes) with the description of a new species

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