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Polarization resolved hyperspectral imaging of the beetle Protaetia speciosa jousselini

Optics Express 2025年第7期33卷 14858-14871页

作者： Soltani, Peyman Hacken, Milan Ten van der Meijden, Arie Snik, Frans de Dood, Michiel J.A. Huygens-Kamerlingh Onnes Laboratory Leiden University Niels Bohrweg 2 Leiden2333 CA Netherlands BIOPOLIS Program in Genomics Biodiversity and Land Planning CIBIO Campus de Vairão Vairão4485-661 Portugal Leiden Observatory Leiden University Einsteinweg 55 Leiden2333 CC Netherlands

Understanding and classifying chiral structural color of scarab beetles across the phylogenetic tree is an important scientific tool to explore the origins of the homochiral optical response in biological structures with a potential relation to the homochirality of (chitin) molecules. We report hyperspectral polarization resolved images of the scarab beetle Protaetia speciosa jousselini (Gory & Percheron, 1833) and resolve the state of polarization as a function of both position (spatial resolution of ∼20 µm × 10 µm) and wavelength (spectral resolution of 5.5 nm). We observe a strong left-handed chiral Bragg reflectance and analyze the center wavelength and width of the spectrum. The reflectance and state of polarization match scale with the center wavelength of the Bragg reflection, while the relative width of reflectance spectrum is characterized by a chiral photonic strength parameter ψC ≈ 0.14 that is independent of the reflected color and position. Based on the self-similarity of the reflectance spectra we interpret variation in reflectance as variations in the thickness of the chiral Bragg reflector across the beetle. © 2025 Optica Publishing Group (formerly OSA). All rights reserved.

关键词： Spectral resolution

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Anthropogenic forests simplify seed-but not pollen-dispersal networks

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Integrative Zoology 2025年第1期20卷 160-170页

作者： Luis P.DA SILVA António Pereira COUTINHO Jaime A.RAMOS Ruben H.HELENO CIBIO Centro de Investigação em Biodiversidade e Recursos GenéticosInBIO Laboratório AssociadoUniversidade do PortoVairãoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOVairãoPortugal CFE—Centre for Functional Ecology Department of Life SciencesUniversity of CoimbraCoimbraPortugal MARE—Marine and Environmental Sciences Centre Department of Life SciencesUniversity of CoimbraCoimbraPortugal

Natural native forests are rapidly being replaced by anthropogenic forests often with a strong presence of invasive alien plant *** species are widely planted worldwide,with Eucalyptus globulus plantations being par-ticularly expressive in *** forestry practices often lead to the associated expansion of invasive species,such as Acacia ***,we still know relatively little about the functioning of anthropogenic forests,such as seed and pollen dispersal ***,we compared bird abundance and richness and the seed and pollen dispersal networks in both forest *** forests presented lower bird abundance,and smaller,more simpliﬁed,and more random(abundance-based)seed dispersal services than those of natural ***,the pollen dispersal network was more similar than the seed dispersal network for both forest types and domi-nated by opportunistic and neutral processes,given the absence of specialized *** proportion of birds transporting seeds decreased,while those carrying pollen signiﬁcantly increased in the anthropogenic forest compared to the native *** work highlights the impact of anthropogenic forests on bird abundance,with consequences for seed dispersal services and forest regeneration.

关键词： anthropogenic impact ecosystem service eucalypt exotic species functional biodiversity novel ecosystems plant–animal interactions

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Factors determining the occupancy of nest-boxes by Great Tits(Parus major)in eucalypt plantations

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Avian Research 2023年第2期14卷 200-205页

作者： Ricardo S.Ceia Pedro B.Lopes Luís Pda Silva Centre for Functional Ecology–Science for People&the Planet Department of Life SciencesUniversity of Coimbra3000-456CoimbraPortugal CIBIO Centro de Investigaçao em Biodiversidade e Recursos GeneticosInBIO Laboratorio AssociadoCampus de Vair aoUniversidade do Porto4485-661VairaoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de Vai~ao4485-661VairaoPortugal

Providing nest-boxes as surrogate tree cavities can be of great importance to increase the breeding populations of cavity-nesting birds in managed ***,the exact placement of nest-boxes should be taken into consideration to enhance their occupancy according to species-specific *** this study,we investigated which factors can better predict nest-box occupancy by the Great Tit(Parus major)in eucalypt *** used generalised linear mixed-effects models to analyse the influence of topography,nest-box positioning,vegetation cover and landscape variables on three-year occupancy records from 80 newly provided ***-random patterns of nest-box occupancy were found with respect to all categories except *** suggest that Great Tits prefer to occupy high-placed nest-boxes,close to areas that can provide them with supplementary resources either within or in the vicinity of the stand(i.e.,trees other than eucalypts,riparian vegetation,and large patches of adjacent habitats).Overall,this study provides important recommendations for nest-box placement and spatial distribution in managed forests and enhances the potential of nest-box interventions as a biodiversity offset and management tool.

关键词： Eucalyptus globulus Managed forest Nest-site attributes Secondary cavity-nester Species-specific preferences Tit

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Feeding ecology and interactions with mammal hosts in a symbiotic genus of birds(Buphagus spp.)in Namibia

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Avian Research 2024年第3期15卷 336-344页

作者： Michael S.Lukubwe Daniel Velarde-Garcéz Fernando Sequeira Susana Lopes Adrian J.F.K.Craig Vanessa A.Mata Department of Zoology and Entomology Rhodes UniversityMakhandaSouth Africa Department of Wildlife Management and Tourism Studies University of NamibiaKatima Mulilo CampusNamibia Departamento de Biologia Faculdade de CiênciasUniversidade do PortoPortoPortugal CIBIO Centro de Investigação em Biodiversidade e Recursos GenéticosInBIO Laboratório AssociadoCampus de VairãoVairãoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de VairãoVairãoPortugal

As the sole obligate symbiotic birds in Africa,oxpeckers offer a unique model for studying symbiotic *** to the multitrophic level they occupy and the context dependent foraging behavior they exhibit,the type of symbiotic relationship can be *** addition to providing a cleaning service to the host by removing ticks,oxpeckers frequently feed on blood,mucus,and saliva,inflicting potential damage on the ***,we used DNA metabarcoding on faecal samples to analyze the taxonomic composition of the trophic interactions of the Yellow-billed Oxpecker(Buphagus africanus)and Red-billed Oxpecker(***)in northeastern *** contrast to conventional methods,DNA metabarcoding allows for a detailed identification of dietary resources encompassing both mammal hosts and consumed arthropods within the same *** this information,we examined differences in the diet composition between oxpecker species and localities,as well as the co-occurrence between host and arthropod *** findings revealed that oxpeckers predominantly source their diet from mammals,ticks,and flies;however,ticks and flies rarely co-occur in the diet of an *** observed variability among individuals in their feeding ecology,which is strongly correlated with locality and,to a lesser extent,with the mammal *** noted a high degree of mobility between hosts within relatively short periods,with 32%of the samples showing traces of at least two mammal *** study illustrates the dynamic foraging behavior of these specialized symbiotic birds,shedding light on their potential role in pest control services and disease transmission.

关键词： Commensalism Diet DNA metabarcoding Oxpeckers Parasitism Trophic ecology

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Feeding ecology of a highly aerial bird during its long breeding season

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Avian Research 2023年第1期14卷 62-69页

作者： Sandra Fernandes Vanessa A.Mata Luis P.da Silva CIBIO Centro de Investigacão em Biodiversidade e Recursos GenéticosInBIO Laboratório AssociadoCampus de VairãoUniversidade do Porto4485-661Vairão Portugal Departamento de Biologia Faculdade de CiênciasUniversidade do Porto4099-002PortoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de Vairão4485-661VairãaoPortugal

Pallid Swifts(Apus pallidus),as other swifts,are birds extremely adapted to an aerial lifestyle,showing unique adaptations that allow them to fly almost *** diet of these non-stopping high-altitudinal aerial birds has been mostly studied through techniques that fail to produce highly resolved prey identifications,and for that have been replaced by molecular techniques,such as DNA *** samples of Pallid Swifts were monthly collected from a colony in the north of Portugal during the breeding *** from the faecal samples was used to sex the birds and to identify the arthropods present in the diet through DNA *** the detected prey items,74 families were identified belonging to 16 orders,with Hymenoptera and Hemiptera being the most frequently *** were seasonal variations in diet richness,composition and prey *** the diet of males and females,although no differences were found between the diet of males and females in terms of composition and richness,there were differences in the size of arthropods preyed by the different sexes,with males feeding on larger *** large seasonal variation in Pallid Swifts’diet during the breeding season is probably a result of spatiotemporal variation in aerial prey,of which swifts likely predate *** no significant differences were detected in diet richness and composition between sexes,the fact that males consumed larger prey may suggest the existence of sexual dietary segregation in this group of *** last,several pest species were found in these swifts’diet,which,if studied through DNA metabarcoding,can be used to monitor small arthropods,including airborne pests.

关键词： AMerial foraging Apus plius Dietary s-ssonal variation FReeding omlogy Metahercoding Opimel foraging theoary

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An Approach for Predicting Spatially Indexed Carcass Persistence Probability to Estimate Bird Mortality at Power Lines 26th

An Approach for Predicting Spatially Indexed Carcass Persist...

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26th Congress of the Portuguese Statistical Society, SPE 2023

作者： Biscaia, Ema Bernardino, Joana Bispo, Regina NOVA FCT Department of Mathematics Caparica Portugal CIBIO Research Centre in Biodiversity and Genetic Resources InBIO Associate Laboratory University of Porto Vairão Portugal CIBIO Research Centre in Biodiversity and Genetic Resources InBIO Associate Laboratory Instituto Superior de Agronomia Universidade de Lisboa Lisboa Portugal BIOPOLIS Program in Genomics Biodiversity and Land Planning CIBIO Vairão Portugal and Department of Mathematics NOVA FCT Caparica Portugal

ISBN: (纸本)9783031689482

One of the objectives of the environmental monitoring programs of transmission power lines is to quantify bird mortality. To account for carcass removal, these programs typically include field experiments which allow to obtain data on the persistence time of the carcass in the field until removal. In this study, we aim to estimate the removal bias correction factor, considering the carcass size, the season, and the location of power line projects, eliminating the need for field trials in every new project. To achieve this goal, we used the Integrated Nested Laplace Approximation (INLA) method combined with the Stochastic Partial Differential Equations (SPDE) approach to model the probability of persistence considering both fixed (carcass size and season) and random (geographic location and project) effects. The results allowed to analyze the variation in space of bird carcass persistence and to create a tool for common users to estimate the removal correction factor for a specific location as a function of the covariates considered, in mainland Portugal. However, further improvement is required as model predictions are still unreliable in large portions of the national territory. We discuss the model limitations and offer directions for future work. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Birds

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Natural parasites in conjunction with behavioral and color traits explain male agonistic behaviors in a lizard

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Current Zoology 2024年第1期70卷 59-69页

作者： Rodrigo Megia-Palma Dhanashree Paranjpe Robert D.Cooper Pauline Blaimont Barry Sinervo Department of Biomedicine and Biotechnology Parasitology UnitUniversidad de Alcala(UAH)E-28805Alcala de HenaresSpain CIBio Centro de Investigagao em Biodiversidade e Recursos GeneticosInBIO Laboratorio AssociadoCampus de VairaoUniversidade do PortoP-4485-661 VairaoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de VairaoP-4485-661 VairaoPortugal Rupa Rahul Bajaj Center for Environment and Art Empress Botanical GardensKavade MalaPuneIndia Department of Ecology and Evolutionary Biology University of CaliforniaLos AngelesCA 90095USA Department of Biology University of Houston Downtown1Main St.HoustonTX 77002USA Department of Ecology and Evolutionary Biology University of CaliforniaSanta CruzCA 95064USA

Male competition conforms to a cost-benefit model,because while aggression may increase reproductive prospects,it can also increase the risk of *** hypothesize that an additional cost in aggressive males would be an increase in parasite load associated with a high energy investment into sexual *** of these infections,in turn,may downmodulate the level of host aggression via energetic *** staged dyadic male contests in the lab to investigate the relationships of multiple parasites with the agonistic behavior of lizard hosts,Sceloporus *** also included both color and behavioral traits from opponents in the analyses because(1)color patches of lizards may serve as intraspecific signals used by conspecifics to assess the quality of opponents,and(2)contests between male lizards fit classical models of escalated aggression,where lizards increase aggression displays in response to an opponent's *** results conform to our hypothesis because male lizards displayed more pushups when they had more ***,some parasites may modulate the levels of aggression because lizards infected by hematic coccidians performed fewer ***,lizards also displayed fewer pushups when both the chroma and size of the opponent's blue patch were *** results thus also supported the role of the blue patch of *** as a sexual armament,because it contributed to the deterrence of aggression from opponent *** revealed that natural parasitic infections in lizard hosts can contribute to their agonistic *** encourage future studies to account for parasites in behavioral testswithlizards.

关键词： Ixodes pacificus Lankesterella sexual selection social interactions ticks

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Introduced and extinct:neglected archival specimens shed new light on the historical biogeography of an iconic avian species in the Mediterranean

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Integrative Zoology 2024年第5期19卷 887-897页

作者： Giovanni FORCINA Miguel CLAVERO Marie MEISTER Christina BARILARO Monica GUERRINI Filippo BARBANERA CIBIO Centro de Investigação em Biodiversidade e Recursos GenéticosInBIO Laboratório AssociadoCampus de VairãoUniversidade do PortoVairãoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de VairãoVairãoPortugal Universidad de Alcalá Departamento de Ciencias de la VidaGlobal Change Ecology and Evolution Research Group(GloCEE)Alcaláde HenaresMadridSpain Departamento de Biología de la Conservación Estación Biológica de Doñana EBD–CSICSevillaSpain UMR7044 du CNRS and Musée Zoologique de Strasbourg StrasbourgFrance Landesmuseum Natur und Mensch Oldenburg OldenburgGermany Department of Biology University of PisaPisaItaly

Collection specimens provide valuable and often overlooked biological material that enables addressing relevant,long-unanswered questions in conservation biology,historical biogeography,and other research ***,we use preserved specimens to analyze the historical distribution of the black francolin(Francolinus francolinus,Phasianidae),a case that has recently aroused the interest of archeozoologists and evolutionary *** black francolin currently ranges from the Eastern Mediterranean and the Middle East to the Indian subcontinent,but,at least since the Middle Ages,it also had a circum-Mediterranean *** species could have persisted in Greece and the Maghreb until the 19th century,even though this possibility had been questioned due to the absence of museum specimens and scant literary ***,we identified four 200-year-old stuffed black francolins-presumably the only ones still existing-from these areas and sequenced their mitochondrial DNA control *** on the comparison with conspecifics(n=396)spanning the entirety of the historic and current species range,we found that the new samples pertain to previously identified genetic groups from either the Near East or the Indian *** disproving the former occurrence of an allegedly native westernmost subspecies,these results point toward the role of the Crown of Aragon in the circum-Mediterranean expansion of the black francolin,including the Maghreb and *** evidence hints at the long-distance transport of these birds along the Silk Road,probably to be traded in the commerce centers of the Eastern Mediterranean.

关键词： Aragonese archival DNA Francolinus historical biogeography Maghreb Silk Road Uttarakhand

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Polarization resolved hyperspectral imaging of the beetle Protaetia speciosa jousselini

arXiv

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arXiv 2024年

作者： Soltani, Peyman Ten Hacken, Milan van der Meijden, Arie Snik, Frans de Dood, Michiel J.A. Huygens-Kamerlingh Onnes Laboratory Leiden University Niels Bohrweg 2 Leiden2333 CA Netherlands BIOPOLIS Program in Genomics Biodiversity and Land Planning CIBIO Campus de Vairão Vairão4485-661 Portugal Leiden Observatory Leiden University Einsteinweg 55 Leiden2333 CC Netherlands

Understanding and classifying chiral structural color of scarab beetles across the phylogenetic tree is an important scientific tool to explore the origins of the homochiral optical response in biological structures with a potential relation to the homochirality of (chitin) molecules. We report hyperspectral polarization resolved images of the scarab beetle Protaetia speciosa jousselini (Gory & Percheron, 1833) and resolve the state of polarization as a function of both position (spatial resolution of sim20 μm × 10 μm) and wavelength (spectral resolution of 5.5 nm). We observe a strong left-handed chiral Bragg reflection and analyze the center wavelength and width of the spectrum. The reflection and state of polarization scale with the center wavelength of the Bragg reflection, while the relative width of reflection spectrum is characterized by a chiral photonic strength parameter ΨC ≈ 0.14 that is independent of the reflected color and position. Based on the self-similarity of the reflection spectra we interpret variation in reflectivity as variations in the thickness of the chiral Bragg reflector across the beetle. Copyright © 2024, The Authors. All rights reserved.

关键词： Spectral resolution

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Phylogeography and diversification of Oriental weaverbirds(Ploceus spp.):A gradual increase of eurytopy

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Avian Research 2023年第4期14卷 511-522页

作者： Abdul Razaq Giovanni Forcina Urban Olsson Qian Tang Robert Tizard Naing Lin Nila Pwint Aleem Ahmed Khan Institute of Pure&Applied Biology Zoology DivisionBahauddin Zakariya UniversityMultanPakistan Universidad de Alcala(UAH) Global Change Ecology and Evolution Research Group(GloCEE)Departamento de Ciencias de La Vida28805Alcala de HenaresSpain CIBIO Centro de Investigaçao em Biodiversidade e Recursos GenaeticosInBIO Laborataorio AssociadoUniversidade do PortoCampus de Vairao4485-661VairaoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de Vairao4485-661VairaoPortugal Department of Biology and Environmental Science University of GothenburgBox 463SE-40530GothenburgSweden Gothenburg Global Biodiversity Centre Box 461SE-40530GothenburgSweden Department of Biological Sciences National University of Singapore16 Science Drive 4Republic of Singapore Wildlife Conservation Society Global Conservation ProgramBronxNYUSA Nature and Wildlife Conservation Division Ministry of Natural Resources and Environmental ConservationNaypyidawMyanmar

Weaverbirds are a speciose group of colorful passerines inhabiting the Old World ***,the Oriental weaverbirds(Ploceus spp.),widespread across southern Asia,are much less diverse and restricted to a few ecological niches compared to their African *** investigate their phylogeography,we retrieved 101 samples of Baya Weaver(***),Streaked Weaver(***),Black-Throated Weaver(***)and Asian Golden Weaver(***)along with GenBank sequences of Finn's Weaver(***).We reconstructed the first molecular phylogeny based on a dataset consisting of both mitochondrial and nuclear genes,dating the most recent common ancestor of Oriental Ploceus to~11 *** speciation appears to have been a combination of divergence within the Indian subcontinent and dispersal across a barrier situated between the Indian subcontinent and the Indochinese region,which provided habitats with a varying degree of isolations and ultimately promoted divergences in *** descendants of the earliest nodes,*** and ***,are both rare and local,often found near large river systems,which perhaps reflects niche conservatism and a lack of adaptive *** three smaller species are all widespread,common and less habitat *** most recent divergence,between western and eastern *** populations,is supported by both phylogenetic and morphological evidence,pointing toward limited gene flow between ***,a zone of intergradation may exist in Myanmar and Brahmaputra flood plains,thus preventing a recommendation for species level recognition without further study.

关键词： Avian phylogenetics Indian subcontinent Indochinese region Multilocus analyses Ploceidae

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