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  1. AU="Dahlsjö, Cecilia A L"
  2. AU="Gavigan, Patrick"
  3. AU="Liu, Ye"
  4. AU="Changyang Xing"
  5. AU="Sarovich, Derek S"
  6. AU="Joseph P. Zackular"
  7. AU="Maes, Evelyn"
  8. AU="Haixiang Zhou"
  9. AU="Choi, Jinyong"
  10. AU="González-Mansilla, Ana"
  11. AU="Cho Kilwon"
  12. AU="Rachide Onadja, Palamanga Abdoul"
  13. AU="Bertacca, Sofia"
  14. AU="Bansal, Ayush"
  15. AU="Liao, Naikai"
  16. AU="Gomes, Lux Attiê Santos"
  17. AU="İdil Su Canıtez"
  18. AU="Baptiste Duceau"
  19. AU="Pedro Seoane-Zonjic"
  20. AU="Guthridge, Carla J"
  21. AU=Meena Netra P.
  22. AU="Boustany, Tara"

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  1. Artikel ; Online: Strategies to manage tree pest and disease outbreaks: a balancing act.

    Dahlsjö, Cecilia A L

    BMC ecology and evolution

    2023  Band 23, Heft 1, Seite(n) 70

    Abstract: Tree diseases are one of the major threats to forests worldwide. As the frequency and severity of disease outbreaks increase, effective prevention and mitigation strategies are urgently needed. Emerging methods are available to tackle this issue, however, ...

    Abstract Tree diseases are one of the major threats to forests worldwide. As the frequency and severity of disease outbreaks increase, effective prevention and mitigation strategies are urgently needed. Emerging methods are available to tackle this issue, however, trade-offs and potential ecological consequences should be considered for successful forest preservation.
    Mesh-Begriff(e) Trees ; Forests ; Disease Outbreaks/prevention & control
    Sprache Englisch
    Erscheinungsdatum 2023-12-06
    Erscheinungsland England
    Dokumenttyp Letter ; Research Support, Non-U.S. Gov't
    ISSN 2730-7182
    ISSN (online) 2730-7182
    DOI 10.1186/s12862-023-02184-0
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  2. Artikel: Large invertebrate decomposers contribute to faster leaf litter decomposition in

    Dahlsjö, Cecilia A L / Atkins, Thomas / Malhi, Yadvinder

    Heliyon

    2024  Band 10, Heft 5, Seite(n) e27228

    Abstract: Leaf litter decomposition is a major component of nutrient cycling which depends on the quality and quantity of the leaf material. Ash trees ( ...

    Abstract Leaf litter decomposition is a major component of nutrient cycling which depends on the quality and quantity of the leaf material. Ash trees (
    Sprache Englisch
    Erscheinungsdatum 2024-03-05
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e27228
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  3. Artikel: Tropical terrestrial invertebrates—Where to from here?

    Dahlsjö, Cecilia A.L / Eggleton, Paul / Kitching, Roger

    Biotropica. 2020 Mar., v. 52, no. 2

    2020  

    Abstract: There are over one million described invertebrate species on Earth, the majority of which are likely to inhabit the highly biodiverse rain forests around the equator. These are some of the most vulnerable ecosystems on Earth due to the pressures of ... ...

    Abstract There are over one million described invertebrate species on Earth, the majority of which are likely to inhabit the highly biodiverse rain forests around the equator. These are some of the most vulnerable ecosystems on Earth due to the pressures of deforestation and climate change with many of their inhabitants at risk of extinction. Invertebrates play a major role in ecosystem functioning from decomposition and nutrient cycling to herbivory and pollination; however, while our understanding of these roles is improving, we are far from being able to predict the consequences of further deforestation, climate change, and biodiversity loss due to the lack of comparative data and the high proportion of species which remain to be discovered. As we move into an era of increased pressure on old‐growth habitats and biodiversity, it is imperative that we understand how changes to invertebrate communities, and the extinction of species, affect ecosystems. Innovative and comprehensive methods that approach these issues are needed. Here, we highlight priorities for future tropical terrestrial invertebrate research such as the efficiency of sustainable land management, exploration of innovative methods for better understanding of invertebrate ecology and behavior, and quantifying the role of invertebrates in ecosystem functioning.
    Schlagwörter behavior ; biodiversity ; biogeochemical cycles ; climate change ; deforestation ; degradation ; ecosystems ; extinction ; habitats ; herbivores ; invertebrates ; methodology ; pollination ; pressure ; rain forests ; research ; risk ; sustainable land management
    Sprache Englisch
    Erscheinungsverlauf 2020-03
    Umfang p. 392-395.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung NAL-light ; JOURNAL ARTICLE
    ZDB-ID 2052061-X
    ISSN 1744-7429 ; 0006-3606
    ISSN (online) 1744-7429
    ISSN 0006-3606
    DOI 10.1111/btp.12739
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  4. Artikel ; Online: Termite Diversity in Ecuador: A Comparison of Two Primary Forest National Parks.

    Dahlsjö, Cecilia A L / Valladares Romero, Cynthia S / Espinosa Iñiguez, Carlos-Iván

    Journal of insect science (Online)

    2020  Band 20, Heft 1

    Abstract: Termites are one of the key ecosystem engineers in tropical forests where they play a major role in decomposition rates, both above and belowground. The interest in termite ecology and biogeography has increased in the last few decades; however, the lack ...

    Abstract Termites are one of the key ecosystem engineers in tropical forests where they play a major role in decomposition rates, both above and belowground. The interest in termite ecology and biogeography has increased in the last few decades; however, the lack of comparable data has limited the wider impact of termite research. For Ecuador, termite studies are relatively rare and comparable data that are collected using standardized sampling methods are missing. In this study, we aim to 1) provide comparable data of termite species and feeding-group diversity from two primary forests in Ecuador and 2) explore the differences in termite species and feeding-group diversity between the two forest sites. Sampling took place in the national parks of Yasuní and Podocarpus where three belt transects (100 × 2 m) following Jones and Eggleton (2000) were conducted in each forest. We found that termite species richness was higher in Yasuní (56 species) than in Podocarpus (24 species) and that 57% of the sampled termite genera had never previously been recorded in Ecuador. The inter-site species dissimilarity was almost complete (Bray Curtis (±SD), 0.91 ± 0.01), which may have been linked to the difference in tree density and species richness in the two forests. Termite feeding-groups diversity was significantly higher in Yasuní than in Podocarpus with the exception of soil-feeding termites which may have been due to competition between humus- and soil-feeding species.
    Mesh-Begriff(e) Animals ; Biodiversity ; Ecuador ; Feeding Behavior ; Forests ; Isoptera/physiology ; Parks, Recreational
    Sprache Englisch
    Erscheinungsdatum 2020-01-22
    Erscheinungsland United States
    Dokumenttyp Comparative Study ; Journal Article
    ZDB-ID 2049098-7
    ISSN 1536-2442 ; 1536-2442
    ISSN (online) 1536-2442
    ISSN 1536-2442
    DOI 10.1093/jisesa/iez129
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  5. Artikel: Invertebrates and the complexity of tropical ecosystems

    Kitching, Roger L / Dahlsjö, Cecilia A. L / Eggleton, Paul

    Biotropica. 2020 Mar., v. 52, no. 2

    2020  

    Abstract: It has been estimated that there are seven million terrestrial arthropod species on Earth consisting of 6.1 million species of insects, 1.5 million of which are beetles. Tropical forests hold a majority of these species, yet few such places have been ... ...

    Abstract It has been estimated that there are seven million terrestrial arthropod species on Earth consisting of 6.1 million species of insects, 1.5 million of which are beetles. Tropical forests hold a majority of these species, yet few such places have been adequately sampled for alpha diversity, and there remains even more uncertainty about beta diversity. From an ecological point of view, it is the functional role of organisms within ecosystems that is the particular focus. It has been customary to classify invertebrates within ecosystems in terms of their trophic roles, but it is also useful to consider their roles in networks. In broad terms, we can classify these networks on the grounds of their basal resources. Those based directly on the photosynthetic products of plants are so‐called “green” food webs, and those based on dead and dying plant material are “brown” food webs. Here, we principally discuss the diversity and functional roles of the invertebrates in tropical terrestrial ecosystems. New sampling and analytical techniques, an expanded set of focal taxa, and an enhanced concern with interactions and processes hold the promise of a productive future for invertebrate studies in the tropics. These will not only add to general understanding of the dynamics of tropical ecosystems but will also provide powerful tools for monitoring and responding to environmental change.
    Schlagwörter Coleoptera ; analytical methods ; arthropods ; dynamics ; food webs ; insects ; monitoring ; photosynthesis ; sampling ; species diversity ; terrestrial ecosystems ; tropical forests ; tropics ; uncertainty
    Sprache Englisch
    Erscheinungsverlauf 2020-03
    Umfang p. 207-214.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung NAL-light ; JOURNAL ARTICLE
    ZDB-ID 2052061-X
    ISSN 1744-7429 ; 0006-3606
    ISSN (online) 1744-7429
    ISSN 0006-3606
    DOI 10.1111/btp.12768
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  6. Artikel ; Online: Model bias in calculating factor importance of climate on vegetation growth

    Liang, Boyi / Liu, Hongyan / Wang, Shaopeng / Cressey, Elizabeth L. / Dahlsjö, Cecilia A.L. / Xu, Chongyang / Wang, Jia / Wang, Zong / Liu, Feng / Feng, Siwen / Shi, Liang / Dai, Jingyu / Cao, Jing / Li, Fufu / Quine, Timothy A.

    Global and Planetary Change. 2023 Sept., v. 228 p.104209-

    2023  

    Abstract: Machine learning is increasingly used to study vegetation growth, however, more often than not, predicting and simulating functions are prioritized over quantitative estimates of the drivers of vegetation growth such as climate. In this paper, we, for ... ...

    Abstract Machine learning is increasingly used to study vegetation growth, however, more often than not, predicting and simulating functions are prioritized over quantitative estimates of the drivers of vegetation growth such as climate. In this paper, we, for the first time, systematically investigate the model bias in calculating factor importance of climate on vegetation growth, especially when various kinds of machine learning models are considered. We undertake two case studies to simulate research in remote sensing and ground-based scenarios from which the difference in quantitative relationships between climate and vegetation is evaluated across multiple models. We found that model complexity increased the determination coefficient (R²) but reduced the absolute importance of the preselected independent variables. As the fitting accuracy increases, the absolute factor importance of dominant factor and all the other influencing factors decreases simultaneously, and factor importance calculated by different models tended to be more normally distributed across the study region. The reduction in factor importance was accompanied by the increased effect of model selection; e.g. the model that was used to estimate vegetation growth played a larger role in producing the factor importance (shown by variance analysis, remote sensing scenario, F-statistic = 555.2; ground based scenario, F-statistic = 30.8) than the climate variables (variance analysis, remote sensing scenario, F = 460.8; ground based scenario, F = 28.8). Critically, for those machine learning models with highest fitting accuracy, the resultant factor importance of climate factors had smaller difference with that of random factor. In contrast, the relative factor influence among the selected climate factor is more robust and reliable (in variation analysis, model was detected no significant impact on the resultant factor importance). For 5 of 8 models, the dominant factor (temperature) has relative influence over 0.85, ranging from 0.88 to 0.99. According to the relevant result, we suggest testing the stability of factor contribution in future studies, particularly when using machine learning models in ecological research and dealing with numerous factors, before drawing relative conclusions. The balance between simple and accurate models is contested and we believe that our study will contribute to a better understand of the data behind this debate.
    Schlagwörter climatic factors ; models ; temperature ; variance ; vegetation ; Machine learning ; Factor importance ; Ecology ; Statistical models ; Model bias ; Climate ; Vegetation growth
    Sprache Englisch
    Erscheinungsverlauf 2023-09
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel ; Online
    ZDB-ID 2016967-X
    ISSN 0921-8181
    ISSN 0921-8181
    DOI 10.1016/j.gloplacha.2023.104209
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  7. Artikel: The local impact of macrofauna and land‐use intensity on soil nutrient concentration and exchangeability in lowland tropical Peru

    Dahlsjö, Cecilia A. L / Stiblik, Petr / Jaklová, Jana / Zídek, Matěj / Wicman Huaycama, Juan / Lojka, Bohdan / Houška, Jakub

    Biotropica. 2020 Mar., v. 52, no. 2

    2020  

    Abstract: Agricultural expansion is a major driver of deforestation which has negative consequences for biodiversity and habitat stability. While sustainable farming is known to be beneficial for biodiversity and crop resilience, little is known about the impact ... ...

    Abstract Agricultural expansion is a major driver of deforestation which has negative consequences for biodiversity and habitat stability. While sustainable farming is known to be beneficial for biodiversity and crop resilience, little is known about the impact of macrofauna and land‐use intensity on soil quality. In this study, we examine the relative effects of (a) soil macrofauna and (b) land use (primary forest, agroforestry, and annual crop) on element depletion rates, concentration, and exchangeability in standardized soil. We used microcosms with two different mesh sizes, 0.25 mm and 5 mm, to exclude and include macrofauna, respectively. The microcosms were incubated for up to a year throughout which samples were collected without replacement. Macrofauna did not have a significant impact on any of the soil parameters which is likely to be due to the low diversity of termites in the sites. Land‐use intensity significantly affected cation depletion rates whose effects increased in order of primary forest<agroforestry<annual crop. At the end of the study, soil Mg⁺² concentration and Ca/Mg ratio in the agroforestry site differed from other land‐use sites. Our results suggest that both bottom‐up and top‐down interactions have major effects on soil conditions, and the results should therefore be used to advise future research and policy around land‐use management. Abstract in Spanish is available with online material.<br />
    Schlagwörter Isoptera ; administrative management ; agroforestry ; annuals ; biodiversity ; cations ; deforestation ; habitats ; issues and policy ; land use ; nutrient content ; research ; sampling ; soil ; soil fauna ; soil nutrients ; soil quality ; sustainable agriculture ; Peru
    Sprache Englisch
    Erscheinungsverlauf 2020-03
    Umfang p. 242-251.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung NAL-light ; JOURNAL ARTICLE
    ZDB-ID 2052061-X
    ISSN 1744-7429 ; 0006-3606
    ISSN (online) 1744-7429
    ISSN 0006-3606
    DOI 10.1111/btp.12676
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  8. Artikel ; Online: Contrasting carbon cycle along tropical forest aridity gradients in West Africa and Amazonia.

    Zhang-Zheng, Huanyuan / Adu-Bredu, Stephen / Duah-Gyamfi, Akwasi / Moore, Sam / Addo-Danso, Shalom D / Amissah, Lucy / Valentini, Riccardo / Djagbletey, Gloria / Anim-Adjei, Kelvin / Quansah, John / Sarpong, Bernice / Owusu-Afriyie, Kennedy / Gvozdevaite, Agne / Tang, Minxue / Ruiz-Jaen, Maria C / Ibrahim, Forzia / Girardin, Cécile A J / Rifai, Sami / Dahlsjö, Cecilia A L /
    Riutta, Terhi / Deng, Xiongjie / Sun, Yuheng / Prentice, Iain Colin / Oliveras Menor, Imma / Malhi, Yadvinder

    Nature communications

    2024  Band 15, Heft 1, Seite(n) 3158

    Abstract: Tropical forests cover large areas of equatorial Africa and play a substantial role in the global carbon cycle. However, there has been a lack of biometric measurements to understand the forests' gross and net primary productivity (GPP, NPP) and their ... ...

    Abstract Tropical forests cover large areas of equatorial Africa and play a substantial role in the global carbon cycle. However, there has been a lack of biometric measurements to understand the forests' gross and net primary productivity (GPP, NPP) and their allocation. Here we present a detailed field assessment of the carbon budget of multiple forest sites in Africa, by monitoring 14 one-hectare plots along an aridity gradient in Ghana, West Africa. When compared with an equivalent aridity gradient in Amazonia, the studied West African forests generally had higher productivity and lower carbon use efficiency (CUE). The West African aridity gradient consistently shows the highest NPP, CUE, GPP, and autotrophic respiration at a medium-aridity site, Bobiri. Notably, NPP and GPP of the site are the highest yet reported anywhere for intact forests. Widely used data products substantially underestimate productivity when compared to biometric measurements in Amazonia and Africa. Our analysis suggests that the high productivity of the African forests is linked to their large GPP allocation to canopy and semi-deciduous characteristics.
    Mesh-Begriff(e) Trees ; Forests ; Carbon Cycle ; Ghana ; Carbon ; Ecosystem ; Tropical Climate
    Chemische Substanzen Carbon (7440-44-0)
    Sprache Englisch
    Erscheinungsdatum 2024-04-11
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-47202-x
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  9. Artikel ; Online: (mit Forschungsdaten) Breaking the cipher: ant eavesdropping on the variational trail pheromone of its termite prey.

    Wen, Xiao-Lan / Wen, Ping / Dahlsjö, Cecilia A L / Sillam-Dussès, David / Šobotník, Jan

    Proceedings. Biological sciences

    2017  Band 284, Heft 1853

    Abstract: Predators may eavesdrop on their prey using innate signals of varying nature. In regards to social prey, most of the prey signals are derived from social communication and may therefore be highly complex. The most efficient predators select signals that ... ...

    Abstract Predators may eavesdrop on their prey using innate signals of varying nature. In regards to social prey, most of the prey signals are derived from social communication and may therefore be highly complex. The most efficient predators select signals that provide the highest benefits. Here, we showed the use of eusocial prey signals by the termite-raiding ant
    Mesh-Begriff(e) Animals ; Ants/physiology ; Isoptera/chemistry ; Pheromones ; Predatory Behavior
    Chemische Substanzen Pheromones
    Sprache Englisch
    Erscheinungsdatum 2017-04-26
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2017.0121
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  10. Artikel: Termite mounds house a diversity of taxa in oil palm plantations irrespective of understory management

    Hood, Amelia S. C / Pashkevich, Michael D / Dahlsjö, Cecilia A. L / Advento, Andreas D / Aryawan, Anak Agung Ketut / Caliman, Jean‐Pierre / Naim, Mohammad / Head, Jason J / Turner, Edgar C

    Biotropica. 2020 Mar., v. 52, no. 2

    2020  

    Abstract: We investigated the effects of oil palm understory vegetation management on termite mound activity and non‐termite inhabitants. We found a diversity of taxa, most of which were unaffected by understory management. Mound volume and termite activity had ... ...

    Abstract We investigated the effects of oil palm understory vegetation management on termite mound activity and non‐termite inhabitants. We found a diversity of taxa, most of which were unaffected by understory management. Mound volume and termite activity had taxa‐specific effects on abundance. Preserving mounds in oil palm plantations will benefit biodiversity. Abstract in Indonesian is available with online material.
    Schlagwörter Elaeis guineensis ; Isoptera ; administrative management ; biodiversity ; plantations ; termite mounds ; understory ; vegetation ; volume
    Sprache Englisch
    Erscheinungsverlauf 2020-03
    Umfang p. 345-350.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel
    Anmerkung NAL-light ; JOURNAL ARTICLE
    ZDB-ID 2052061-X
    ISSN 1744-7429 ; 0006-3606
    ISSN (online) 1744-7429
    ISSN 0006-3606
    DOI 10.1111/btp.12754
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