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  1. AU="Martini, Denise"
  2. AU=Aziz Noreen M
  3. AU="Ho, Tony"
  4. AU=Barzilay Joshua I.
  5. AU="Ishizaka, Alessio"
  6. AU="Chao, Pei-Dawn Lee"
  7. AU="Rosa Gouveia"

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  1. Article ; Online: Genomic evidence of a functional RH2 opsin in New Zealand parrots and implications for pest control

    Grosser, Stefanie / Dutoit, Ludovic / Foster, Yasmin / Robertson, Fiona / Fidler, Andrew E. / Martini, Denise / Knapp, Michael / Robertson, Bruce C.

    New Zealand Journal of Zoology. 2023 Apr. 03, v. 50, no. 2 p.341-349

    2023  

    Abstract: Recent genomic evidence suggest that kea (Nestor notabilis) have a non-functional RH2 opsin gene potentially leading to impaired vision in the green region of the electromagnetic spectrum. In New Zealand, it is standard procedure to add green dye to ... ...

    Abstract Recent genomic evidence suggest that kea (Nestor notabilis) have a non-functional RH2 opsin gene potentially leading to impaired vision in the green region of the electromagnetic spectrum. In New Zealand, it is standard procedure to add green dye to aerial poison baits used in mammalian predator control operations to deter native birds from eating toxic bait. A visual deficiency could impact how kea perceive and interact with green-dyed baits and thus have unforeseen consequences for kea conservation. Here, we sequenced the partial RH2 gene of seven wild kea and re-analysed the kea genome raw sequencing data of the RH2 locus. We demonstrate that the reported premature stop codon is most likely an assembly artefact. An extended analysis of the published genomes of all three extant New Zealand parrots of the superfamily Strigopoidea confirms that the RH2 gene is functional in this entire group.
    Keywords Nestor notabilis ; dyes ; genomics ; loci ; mammals ; opsin ; predator control ; stop codon ; toxicity ; vision disorders ; zoology ; New Zealand ; Bird vision ; kea ; New Zealand parrots ; opsins ; pest control ; RH2
    Language English
    Dates of publication 2023-0403
    Size p. 341-349.
    Publishing place Taylor & Francis
    Document type Article ; Online
    ZDB-ID 2098819-9
    ISSN 1175-8821 ; 0301-4223
    ISSN (online) 1175-8821
    ISSN 0301-4223
    DOI 10.1080/03014223.2022.2053554
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  2. Article: Evolution of the “world’s only alpine parrot”: Genomic adaptation or phenotypic plasticity, behaviour and ecology?

    Martini, Denise / Dussex, Nicolas / Robertson, Bruce C. / Gemmell, Neil J. / Knapp, Michael

    Molecular ecology. 2021 Dec., v. 30, no. 23

    2021  

    Abstract: Climate warming, in particular in island environments, where opportunities for species to disperse are limited, may become a serious threat to cold adapted alpine species. In order to understand how alpine species may respond to a warming world, we need ... ...

    Abstract Climate warming, in particular in island environments, where opportunities for species to disperse are limited, may become a serious threat to cold adapted alpine species. In order to understand how alpine species may respond to a warming world, we need to understand the drivers that have shaped their habitat specialisation and the evolutionary adaptations that allow them to utilize alpine habitats. The endemic, endangered New Zealand kea (Nestor notabilis) is considered the only alpine parrot in the world. As a species commonly found in the alpine zone it may be highly susceptible to climate warming. But is it a true alpine specialist? Is its evolution driven by adaptation to the alpine zone, or is the kea an open habitat generalist that simply uses the alpine zone to, for example, avoid lower lying anthropogenic landscapes? We use whole genome data of the kea and its close, forest adapted sister species, the kākā (Nestor meridionalis) to reconstruct the evolutionary history of both species and identify the functional genomic differences that underlie their habitat specialisations. Our analyses do not identify major functional genomic differences between kea and kākā in pathways associated with high‐altitude. Rather, we found evidence that selective pressures on adaptations commonly found in alpine species are present in both Nestor species, suggesting that selection for alpine adaptations has not driven their divergence. Strongly divergent demographic responses to past climate warming between the species nevertheless highlight potential future threats to kea survival in a warming world.
    Keywords Nestor notabilis ; altitude ; climate ; cold ; evolution ; forests ; genome ; genomics ; habitats ; parrots ; phenotypic plasticity ; New Zealand
    Language English
    Dates of publication 2021-12
    Size p. 6370-6386.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1126687-9
    ISSN 1365-294X ; 0962-1083
    ISSN (online) 1365-294X
    ISSN 0962-1083
    DOI 10.1111/mec.15978
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  3. Article ; Online: Evolution of the "world's only alpine parrot": Genomic adaptation or phenotypic plasticity, behaviour and ecology?

    Martini, Denise / Dussex, Nicolas / Robertson, Bruce C / Gemmell, Neil J / Knapp, Michael

    Molecular ecology

    2021  Volume 30, Issue 23, Page(s) 6370–6386

    Abstract: Climate warming, in particular in island environments, where opportunities for species to disperse are limited, may become a serious threat to cold adapted alpine species. In order to understand how alpine species may respond to a warming world, we need ... ...

    Abstract Climate warming, in particular in island environments, where opportunities for species to disperse are limited, may become a serious threat to cold adapted alpine species. In order to understand how alpine species may respond to a warming world, we need to understand the drivers that have shaped their habitat specialisation and the evolutionary adaptations that allow them to utilize alpine habitats. The endemic, endangered New Zealand kea (Nestor notabilis) is considered the only alpine parrot in the world. As a species commonly found in the alpine zone it may be highly susceptible to climate warming. But is it a true alpine specialist? Is its evolution driven by adaptation to the alpine zone, or is the kea an open habitat generalist that simply uses the alpine zone to, for example, avoid lower lying anthropogenic landscapes? We use whole genome data of the kea and its close, forest adapted sister species, the kākā (Nestor meridionalis) to reconstruct the evolutionary history of both species and identify the functional genomic differences that underlie their habitat specialisations. Our analyses do not identify major functional genomic differences between kea and kākā in pathways associated with high-altitude. Rather, we found evidence that selective pressures on adaptations commonly found in alpine species are present in both Nestor species, suggesting that selection for alpine adaptations has not driven their divergence. Strongly divergent demographic responses to past climate warming between the species nevertheless highlight potential future threats to kea survival in a warming world.
    MeSH term(s) Adaptation, Physiological/genetics ; Animals ; Ecology ; Genomics ; Microsatellite Repeats ; Parrots
    Language English
    Publishing date 2021-05-29
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1126687-9
    ISSN 1365-294X ; 0962-1083
    ISSN (online) 1365-294X
    ISSN 0962-1083
    DOI 10.1111/mec.15978
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  4. Article: Genomic sequencing confirms absence of introgression despite past hybridisation between a critically endangered bird and its common congener

    Forsdick, Natalie J / Martini, Denise / Brown, Liz / Cross, Hugh B / Maloney, Richard F / Steeves, Tammy E / Knapp, Michael

    Global ecology and conservation. 2021 Aug., v. 28

    2021  

    Abstract: Genetic swamping resulting from interspecific hybridisation can increase extinction risk for threatened species. The development of high-throughput and reduced-representation genomic sequencing and analyses to generate large numbers of high resolution ... ...

    Abstract Genetic swamping resulting from interspecific hybridisation can increase extinction risk for threatened species. The development of high-throughput and reduced-representation genomic sequencing and analyses to generate large numbers of high resolution genomic markers has the potential to reveal introgression previously undetected using small numbers of genetic markers. However, few studies to date have implemented genomic tools to assess the extent of interspecific hybridisation in threatened species. Here we investigate the utility of genome-wide single nucleotide polymorphisms (SNPs) to detect introgression resulting from past interspecific hybridisation in one of the world’s rarest birds. Anthropogenic impacts have resulted in hybridisation and subsequent backcrossing of the critically endangered Aotearoa New Zealand endemic kakī (black stilts; Himantopus novaezelandiae) with the non-threatened self-introduced congeneric poaka (Aotearoa New Zealand population of pied stilts, Himantopus himantopus leucocephalus), yet genetic analyses with a limited set of microsatellite markers revealed no evidence of introgression of poaka genetic material in kakī, excluding one individual. We use genomic data for ~63% of the wild adult kakī population to reassess the extent of introgression resulting from hybridisation between kakī and poaka. Consistent with previous genetic analyses, we detected no introgression from poaka into kakī. These collective results indicate that, for kakī, existing microsatellite markers provide a robust, cost-effective approach to detect cryptic hybrids. Further, for well-differentiated species, the use of genomic markers may not be required to detect admixed individuals.
    Keywords adults ; backcrossing ; birds ; cost effectiveness ; ecology ; extinction ; genomics ; interspecific hybridization ; introgression ; microsatellite repeats ; risk ; New Zealand
    Language English
    Dates of publication 2021-08
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2814786-8
    ISSN 2351-9894
    ISSN 2351-9894
    DOI 10.1016/j.gecco.2021.e01681
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  5. Article: Land availability for sugarcane derived jet-biofuels in São Paulo—Brazil

    Martini, Denise Zanatta / Cinthia Rubio Urbano da Silva / Eloi Lennon Dalla-Nora / Ieda Del'Arco Sanches / Luiz Eduardo Oliveira e Cruz de Aragão / Marcelo Valadares Galdos

    Land use policy. 2018 Jan., v. 70

    2018  

    Abstract: The aviation industry is committed to reducing its environmental impact and has established ambitious goals to decrease CO2 emissions by 50% by to 2050. The replacement of fossil fuels by jet-biofuels is one of the main strategies to attain the emission ... ...

    Abstract The aviation industry is committed to reducing its environmental impact and has established ambitious goals to decrease CO2 emissions by 50% by to 2050. The replacement of fossil fuels by jet-biofuels is one of the main strategies to attain the emission targets. Therefore, the aim of this study was to provide a detailed survey on land availability for sugarcane production, one of the most promising feedstock options for jet-biofuels, in the Brazilian state of São Paulo, where the technological resources are concentrated. This analysis was carried out by integrating georeferenced information on land use, protected areas, soil fertility, terrain slope and climatic conditions into a conditional decision support procedure, based on Boolean inference techniques. Our results showed that 3,501,590ha would be potentially available for sugarcane expansion in the year 2013. Almost 80% of the mapped lands have high economic potential once they are located in a distance lower than or equal to 25km from the processing units. If properly included in the productive sector, the available lands could increase sugarcane production by 73% in relation to current levels. That could lead to a growth of 147% (20.6 billion liters) in the ethanol production compared to the production obtained in 2015. Nevertheless, long-term policies, logistic improvements and environmental standard definitions on jet-biofuels still remain as major challenges to boost feedstock production, as well as, to implement financial and regulatory measures necessary to promote jet-biofuels production and use.
    Keywords aviation ; carbon dioxide ; climatic factors ; environmental impact ; ethanol production ; feedstocks ; fossil fuels ; georeferencing ; greenhouse gas emissions ; industry ; issues and policy ; land use ; landscapes ; soil fertility ; sugarcane ; surveys ; Brazil
    Language English
    Dates of publication 2018-01
    Size p. 256-262.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 852476-2
    ISSN 0264-8377
    ISSN 0264-8377
    DOI 10.1016/j.landusepol.2017.10.035
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  6. Article: Potential land availability for agricultural expansion in the Brazilian Amazon

    Martini, Denise Zanatta / Antônio Roberto Formaggio / Eloi Lennon Dalla-Nora / Luiz Eduardo Oliveira e Cruz de Aragão / Mauricio Alves Moreira

    Land Use Policy. 2015 Dec., v. 49

    2015  

    Abstract: The Amazon hosts one of the largest stocks of arable land in the world. However, little is known about the available extent of agricultural land in conformity with legal, agronomical and environmental requirements. This study aims to identify and ... ...

    Abstract The Amazon hosts one of the largest stocks of arable land in the world. However, little is known about the available extent of agricultural land in conformity with legal, agronomical and environmental requirements. This study aims to identify and quantify potentially available areas for agricultural expansion in the Brazilian Amazon considering the extent of: (i) legally available forested lands, (ii) previously converted lands with suitable productive capacity and (iii) previously converted lands free of land use conflicts. This analysis was carried out by integrating georeferenced information on land use, soil fertility, terrain slope, biomass, protected areas and land use policies (e.g. Brazilian Forest Code) into a conditional decision support procedure, based on Boolean inference techniques. Our results showed that 11.69% (493,103.03km2) of the Brazilian Amazon would be potentially available for agricultural expansion in the year 2010. This area was essentially dominated by forests (59.37%), followed by previously converted lands (40.63%). The extent of this area was equivalent to 75.86% of the total cultivated area in Brazil in 2010. However, the effective usage of these areas would have direct political and environmental implications. First, it is expected that the effective usage of available forests would detract recent achievements of the Brazilian Action Plan for Prevention and Control of Deforestation in the Amazon, which has reduced deforestation by 79% from historical rates. Moreover, the conversion of these areas could result in a committed emission of 13±1Pg CO2eq to the atmosphere which is equivalent to the total emissions from land cover change registered in Brazil during the 2000–2010 period. Therefore, the compensation of environmental liabilities stands as the most consistent destination for the available forests mapped in this study. To minimize environmental impacts, agricultural expansion in the Brazilian Amazon should be restricted to already converted areas. This land cover class totalizes 200,000km2, which could support agricultural expansion without promoting the advance of deforestation.
    Keywords arable soils ; biomass ; conservation areas ; cultivation area ; deforestation ; economic productivity ; emissions ; environmental impact ; forests ; georeferencing ; issues and policy ; land cover ; land use ; politics ; soil fertility ; Amazonia ; Brazil
    Language English
    Dates of publication 2015-12
    Size p. 35-42.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 852476-2
    ISSN 0264-8377
    ISSN 0264-8377
    DOI 10.1016/j.landusepol.2015.07.005
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  7. Article: On the polymerisation of the epoxidised biodiesel: The importance of the epoxy rings position, the process and the products

    Nicolau, Aline / Samios, Dimitrios / Piatnick, Clarisse M.S / Reiznautt, Quelen B / Martini, Denise D / Chagas, Arthur Lygeros

    European polymer journal. 2012 July, v. 48, no. 7

    2012  

    Abstract: Polyesters were prepared using epoxidised methyl esters of oleic acid (EPOAME) and epoxidised biodiesel (mixture of methyl esters) from sunflower oil (EPSOME) and linseed oil (EPLOME) with cis-1,2-cyclohexanedicarboxylic anhydride and triethylamine. The ... ...

    Abstract Polyesters were prepared using epoxidised methyl esters of oleic acid (EPOAME) and epoxidised biodiesel (mixture of methyl esters) from sunflower oil (EPSOME) and linseed oil (EPLOME) with cis-1,2-cyclohexanedicarboxylic anhydride and triethylamine. The kinetic of partial processes involved in the polymerisation were elucidated and related to epoxy rings position in the fatty acid chain. The activation energies (Eₐ) for the epoxy ring opening by the catalyst are 298, 216 and 136kJ/mol for EPOAME, EPSOME and EPLOME respectively. The reactions of the epoxy rings in the positions C9–C10, C12–C13 and C15–C16 with anhydride require average activation energies of 116, 32 and 22kJ/mol, respectively. The compensation effect between activation energy and pre-exponential factor is observed. The polymerisation enthalpy, molecular weight, glass transition temperature and electrical properties were determined. The polyesters studied show promising properties for use in various technological applications.
    Keywords activation energy ; biodiesel ; catalysts ; electrical properties ; enthalpy ; epoxides ; esters ; glass transition temperature ; linseed oil ; molecular weight ; oleic acid ; polyesters ; polymerization ; sunflower oil ; triethylamine
    Language English
    Dates of publication 2012-07
    Size p. 1266-1278.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1483529-0
    ISSN 0014-3057
    ISSN 0014-3057
    DOI 10.1016/j.eurpolymj.2012.04.013
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