Oceans of stimuli: an individual-based model to assess the role of olfactory cues and local enhancement in seabirds’ foraging behaviour

Bastos, Rita; Martins, Benjamin L.; Cabral, João Alexandre; Ceia, Filipe R.; Ramos, Jaime A.; Paiva, Vítor H.; Antônio, Luís; Santos, Mário

doi:10.1007/s10071-020-01368-1

Cited by 13 publications

(11 citation statements)

References 59 publications

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“…Positive selection of genes related to natriuresis also makes sense for Procellariiformes since this biological process plays a key role to maintain the osmotic equilibrium in a sodium-rich environment like the ocean [55,56], which Procellariiformes perform thanks to the development of salt glands (modified nasal glands engaged in secretion of salts). Olfactory receptors, also found here among enriched GOs of positively selected genes, showed signature of adaptive evolution in shearwaters [57], and are crucial to Procellariiformes for navigation [58–60], partner recognition and mating [61–63], finding their own burrows [64] or foraging [65–68].…”

Section: Discussionmentioning

confidence: 93%

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The genome of the Balearic shearwater (Puffinus mauretanicus), a Critically Endangered seabird: a valuable resource for evolutionary and conservation genomics

Caballe

Obiol

Vizueta

et al. 2021

Preprint

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The Balearic shearwater (Puffinus mauretanicus) is the most threatened seabird in Europe. The fossil record suggests that human colonisation of the Balearic Islands resulted in a sharp decrease of the population size. Currently, populations continue to be decimated mainly due to predation by introduced mammals and bycatch in longline fisheries, and some studies predict their extinction by 2070. We present the first high-quality reference genome for the species which was obtained by a combination of short and long-read sequencing. Our hybrid assembly includes 4,169 scaffolds, with a scaffold N50 of 2.1 Mbp, a genome length of 1.2 Gbp, and BUSCO completeness of 96%, which is amongst the highest across sequenced avian species. This reference genome allowed us to study critical aspects relevant to the conservation status of the species, such as an evaluation of overall heterozygosity levels and the reconstruction of its historical demography. Our phylogenetic analysis using whole-genome information resolves current uncertainties in the order Procellariiformes systematics. Comparative genomics analyses uncover a set of candidate genes that may have played an important role into the adaptation to a pelagic lifestyle of Procellariiformes, including those for the enhancement of fishing capabilities, night vision and the development of natriuresis. This reference genome will be the keystone for future developments of genetic tools in conservation efforts for this Critically Endangered species.

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Section: Discussionmentioning

confidence: 93%

“…The copyright holder for this preprint this version posted December 19, 2021. ; https://doi.org/10.1101/2021.12.17.473171 doi: bioRxiv preprint navigation [58-60], partner recognition and mating [61][62][63], finding their own burrows [64] or foraging [65][66][67][68].…”

Section: Adaptation To a Pelagic Lifestyle In Procellariiformesmentioning

confidence: 99%

The genome of the Balearic shearwater (Puffinus mauretanicus), a Critically Endangered seabird: a valuable resource for evolutionary and conservation genomics

Caballe

Obiol

Vizueta

et al. 2021

Preprint

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“…Sea turtles have been shown to be able to detect airborne odours and start to display foraging behaviours when such odours signal the presence of food (Pfaller et al, 2020), suggesting that, for them, olfactory stimuli alone are sufficient to identify foraging opportunities. Lastly, models of foraging strategies in sea birds have shown that olfactory senses confer significant advantages in ocean environments (Bastos et al, 2020), and experimental studies confirm that some species make use of olfactory cues to locate food (Schreiber and Burger, 2001).…”

Section: Discussionmentioning

confidence: 99%

An Ethogram Identifies Behavioural Markers of Attention to Humans in European Herring Gulls (Larus argentatus)

Feist

Graham

2022

Preprint

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Herring gulls are one of the few species that thrive in anthropogenic landscapes. Their longstanding history of urbanisation and familiarity with people makes them an excellent target for studies of the effects of urban living and cognition. Previous studies highlight a connection between food-stealing behaviour, success in anthropogenic areas and an increase in attention towards humans, opening up questions about the exact extent of a gull's knowledge of human food cues and how this manifests itself in behavioural changes. To investigate these questions further, behavioural responses to human cues in a food-related context are investigated and presented in a systematic ethogram, which identifies three distinct markers of attention. Those behaviours – head turns, approaches, and the angular body position relative to the experimenter – differ significantly between control and food conditions, showing that attention towards humans in a food-related context is upregulated and this is reflected in the gull's behaviour. In food condition trials, head turns occur more often and gulls face towards the experimenter (≤90°) with occasional approaches that are never seen in control conditions. Acoustic and behavioural human food-like cues alone were insufficient to elicit a response similar to that seen in presence of a real food item, indicating that gulls specifically pay attention to humans in foraging contexts. The results show situation-dependent attentional modulation in gulls, highlight knowledge gaps about how Herring gulls might identify food objects and provide an ethogram description of attentive behaviours that can be used in further study of attentional modulation in gulls.

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“…There were 135 time-steps for each combination of factors, from 0 to 4020 days. SRC expresses the magnitude and significance of the effect of combined parameters measured using different units, as well as the explained variance, gauging the main effects of the input parameters [27].…”

Section: Global Sensitivity Analysismentioning

confidence: 99%

“…Temperature rise scenarios were set accordingly to the moderate RCP4.5 scenario and the business-as-usual RCP8.5 scenario [25]. Subsequently, GSA [26,27] was performed to disentangle stressors' interactions, prioritize stressor effects on biota and detect species sensitivity to the studied stressors.…”

Section: Introductionmentioning

confidence: 99%

Prioritizing the Effects of Emerging Contaminants on Estuarine Production under Global Warming Scenarios

Martins

Soares

Neuparth

et al. 2022

Toxics

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Due to non-linear interactions, the effects of contaminant mixtures on aquatic ecosystems are difficult to assess, especially under temperature rise that will likely exacerbate the complexity of the responses. Yet, under the current climatic crisis, assessing the effects of water contaminants and temperature is paramount to understanding the biological impacts of mixtures of stressors on aquatic ecosystems. Here, we use an ecosystem model followed by global sensitivity analysis (GSA) to prioritize the effects of four single emerging contaminants (ECs) and their mixture, combined with two temperature rise scenarios, on the biomass production of a NE Atlantic estuary. Scenarios ran for 10 years with a time-step of 0.1 days. The results indicate that macroinvertebrate biomass was significantly explained by the effect of each single EC and by their mixture but not by temperature. Globally, the most adverse effects were induced by two ECs and by the mixture of the four ECs, although the sensitivity of macroinvertebrates to the tested scenarios differed. Overall, the present approach is useful to prioritize the effects of stressors and assess the sensitivity of the different trophic groups within food webs, which may be of relevance to support decision making linked to the sustainable management of estuaries and other aquatic systems.

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Oceans of stimuli: an individual-based model to assess the role of olfactory cues and local enhancement in seabirds’ foraging behaviour

Cited by 13 publications

References 59 publications

The genome of the Balearic shearwater (Puffinus mauretanicus), a Critically Endangered seabird: a valuable resource for evolutionary and conservation genomics

The genome of the Balearic shearwater (Puffinus mauretanicus), a Critically Endangered seabird: a valuable resource for evolutionary and conservation genomics

An Ethogram Identifies Behavioural Markers of Attention to Humans in European Herring Gulls (Larus argentatus)

Prioritizing the Effects of Emerging Contaminants on Estuarine Production under Global Warming Scenarios

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