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Geert De Knijf

 https://orcid.org/0000-0002-7958-1420

  • Herman Teirlinckgebouw, Havenlaan 88 bus 73

    1000 Brussel

    Belgium

1992 …2025

Research activity per year

Search results

  • 2025

    Dit was 2024 voor de libellen

    Ledegen, H., Veraghtert, W. & De Knijf, G., 2025, Natuurpunt.

    Research output: Other contribution › Online publication - Web publication

    Open Access

  • Dragonfly Conservation Europe

    De Knijf, G., 22-Feb-2025. 15 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

  • One-quarter of freshwater fauna threatened with extinction

    Sayer, C. A., Fernando, E., Jimenez, R. R., Macfarlane, N. B. W., Rapacciuolo, G., Böhm, M., Brooks, T. M., Contreras-MacBeath, T., Cox, N. A., Harrison, I., Hoffmann, M., Jenkins, R., Smith, K. G., Vié, J.-C., Abbott, J. C., Allen, D. J., Allen, G. R., Barrios, V., Boudot, J.-P. & Carrizo, S. F. & 68 others, Charvet, P., Clausnitzer, V., Congiu, L., Crandall, K. A., Cumberlidge, N., Cuttelod, A., Dalton, J., Daniels, A. G., De Grave, S., De Knijf, G., Dijkstra, K.-D. B., Dow, R. A., Freyhof, J., García, N., Gessner, J., Getahun, A., Gibson, C., Gollock, M. J., Grant, M. I., Groom, A. E. R., Hammer, M. P., Hammerson, G. A., Hilton-Taylor, C., Hodgkinson, L., Holland, R. A., Jabado, R. W., Juffe Bignoli, D., Kalkman, V. J., Karimov, B. K., Kipping, J., Kottelat, M., Lalèyè, P. A., Larson, H. K., Lintermans, M., Lozano, F., Ludwig, A., Lyons, T. J., Máiz-Tomé, L., Molur, S., Ng, H. H., Numa, C., Palmer-Newton, A. F., Pike, C., Pippard, H. E., Polaz, C. N. M., Pollock, C. M., Raghavan, R., Rand, P. S., Ravelomanana, T., Reis, R. E., Rigby, C. L., Scott, J. A., Skelton, P. H., Sloat, M. R., Snoeks, J., Stiassny, M. L. J., Tan, H. H., Taniguchi, Y., Thorstad, E. B., Tognelli, M. F., Torres, A. G., Torres, Y., Tweddle, D., Watanabe, K., Westrip, J. R. S., Wright, E. G. E., Zhang, E. & Darwall, W. R. T., 8-Jan-2025, In: Nature: International Weekly Journal of Science.

    Research output: Contribution to journal › A1: Web of Science-article › peer-review

    Open Access

  • Toestand en trend van de Speerwaterjuffer in Vlaanderen en Wallonië

    De Knijf, G., 22-Feb-2025. 15 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

  • Vlaamse libellengemeenschappen in kaart gebracht

    Fajgenblat, M., Wijns, R., De Knijf, G., Stoks, R., Lemmens, P., Herremans, M., Van Ormelingen, P., Neyens, T. & De Meester, L., 22-Feb-2025. 22 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

  • 2024

    5. Libellen

    De Knijf, G., 18-Jan-2024, Nationaal Park Hoge Kempen: Natuurrapport 2000-2020. Genk, p. 111-117 7 p.

    Research output: Chapter in Book/Report/Conference proceeding › Contribution to a report not published by INBO

  • Aeshna affinis

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    74 Downloads (Pure)

  • Aeshna caerulea

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    74 Downloads (Pure)

  • Aeshna crenata

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    75 Downloads (Pure)

  • Aeshna cyanea

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    74 Downloads (Pure)

  • Aeshna grandis

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    74 Downloads (Pure)

  • Aeshna isoceles

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    73 Downloads (Pure)

  • Aeshna juncea

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    88 Downloads (Pure)

  • Aeshna mixta

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    73 Downloads (Pure)

  • Aeshna serrata

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    75 Downloads (Pure)

  • Aeshna subarctica

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    74 Downloads (Pure)

  • Aeshna viridis

    van Grunsven, R. H. A., Billqvist, M., De Knijf, G., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    46 Downloads (Pure)

  • Afbakenen van belangrijke gebieden voor wilde bestuivers in Vlaanderen

    Maes, D., Adriaens, T., Van de Meutter, F., Maebe, K., De Saeger, S., De Knijf, G., Hillaert, J., Spanhove, T., Vanormelingen, P. & Wils, C., 2024, In: NatuurFocus. 23, 2, p. 70-77 8 p.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    8 Downloads (Pure)

  • Anax ephippiger

    Prunier, F., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    44 Downloads (Pure)

  • Anax immaculifrons

    De Knijf, G., Billqvist, M., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    43 Downloads (Pure)

  • Anax imperator

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    43 Downloads (Pure)

  • Anax parthenope

    van Grunsven, R. H. A., Billqvist, M., De Knijf, G., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    44 Downloads (Pure)

  • An overview of Red List assessments in Flanders (northern Belgium) .... and their use in nature conservation and policy

    De Knijf, G., Van Ormelingen, P. & Maes, D., 29-Sept-2024. 17 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

    Open Access
    File
    323 Downloads (Pure)

  • Beoordelingskader Europees te beschermen soorten: Verontreiniging en eutrofiëring van oppervlaktewater

    Van Hecke, F., De Knijf, G., Van Wichelen, J., Mertens, W. & Van den Bergh, E., 2024, Instituut voor Natuur- en Bosonderzoek. 131 p. (Rapporten van het Instituut voor Natuur- en Bosonderzoek; no. 35)

    Research output: Book/Report › Reports of Research Institute for Nature and Forest

    Open Access
    File
    391 Downloads (Pure)

  • Bosbeekjuffer in Vlaanderen. Wat denken we te weten en wat missen we?

    De Knijf, G. & Ledegen, H., 2-Mar-2024. 25 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

  • Boyeria irene

    Prunier, F., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    43 Downloads (Pure)

  • Brachythemis impartita

    De Knijf, G., Billqvist, M., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    44 Downloads (Pure)

  • Brachytron pratense

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    47 Downloads (Pure)

  • Caliaeschna microstigma

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    44 Downloads (Pure)

  • Calopteryx haemorrhoidalis

    Prunier, F., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    45 Downloads (Pure)

  • Calopteryx splendens

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    43 Downloads (Pure)

  • Ceriagrion georgifreyi

    van Grunsven, R. H. A., Billqvist, M., De Knijf, G., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Ceriagrion tenellum

    De Knijf, G., Billqvist, M., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Chalcolestes parvidens

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Chalcolestes viridis

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion armatum

    van Grunsven, R. H. A., Billqvist, M., De Knijf, G., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion caerulescens

    Prunier, F., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion ecornutum

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion glaciale

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion hastulatum

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion hylas

    van Grunsven, R. H. A., Billqvist, M., De Knijf, G., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    20 Downloads (Pure)

  • Coenagrion johanssoni

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion mercuriale

    De Knijf, G., Billqvist, M., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion ornatum

    Vinko, D., Billqvist, M., De Knijf, G., van Grunsven, R. H. A. & Prunier, F., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • Coenagrion puella

    Billqvist, M., De Knijf, G., van Grunsven, R. H. A., Prunier, F. & Vinko, D., 2024, In: The IUCN Red List of Threatened Species 2024.

    Research output: Contribution to journal › A2: Article in a journal with peer review, not included in A1 › peer-review

    Open Access
    File
    19 Downloads (Pure)

  • De libellenfauna van het Nationaal Park Hoge Kempen

    De Knijf, G., 2-Mar-2024. 19 p.

    Research output: Contribution to conference › Paper/Powerpoint/Abstract

  • EuropaBON EBV workflow templates

    Lumbierres, M., Abecasis, D., Alcaraz-Segura, D., Alison, J., Álvarez-Presas, M., Anderle, M., Avci, F., Bajocco, S., Baldo, M., Beja, P., Bergamini, A., Bergami, C., Blanco-Aguiar, J. A., Boada, J., Bonn, A., Borges, P., Borgwardt, F., Borja, A., Breeze, T. & Brotons, L. & 156 others, Brucet, S., Bruelheide, H., Buttigieg, P. L., Buzan, E., Calderón-Sanou, I., Camacho, A., Camacho-Santamans, A., Campanaro, A., Cani, A., Cariñanos, P., Carvalho, L., Castellan, G., Castro, A., Ceia-Hasse, A., Chianucci, F., Chowdhury, S., C. Lima, A., Costa, V., Crespo, D., Crepaz, H., Dahlkamp, A., De Knijf, G., De Koning, K., Demars, B. O. L., De Stefano, M., Desmet, P., Diem, A., Díaz-Delgado, R., Díaz Martín, B., Drakare, S., Eljasik, P., Falaschi, M., Fernandes, I., Fernández Bejarano, S. J., Fernandez, N., Fernández-López, J., Ferrara, C., Ferré Codina, A., Fiegenbaum, H., Floccia, F., Galbusera, P., Galdies, J., Gañán, M., Garcia-Gonzalez, F., Garzoli, L., Gundersen, H., Haysom, K. A., Hedenås, H., Heremans, S., Hilpold, A., Hinojo, B., Holmgren, K., Hunger, S., Huybrechts, P., Hvilsom, C., Ilarri, M., Illa-Bachs, E., Isaac, N., Jandt, U., Jankauskaite, G., Junker, J., Kahlert, M., Kamilaris, A., Kasmi, Y., Kiran, H., Koma, Z., Kranstauber, B., Kopatz, A., Lanzén, A., Lecegui Carnero, V., Lever, J. J., Liquete, C., Luque, S., Madon, B., Majaneva, M., Manea, E., March, D., Marco, M., Martínez-López, J., Martinez-Vicente, V., McCallum, I., Méndez, M., Milanovic, M., Moe, S. J., Morant, D., Muir, M. A. K., Müllerová, J., Múrria, C., Musche, M., Nascimbene, J., Nestola, E., Oggioni, A., Oikonomou, A., Oldoni, D., Ott, D., Pace, G., Padubidri, C., Palomino Gaviria, Á. P., Paniccia, C., Pereira, H. M., Pérez-Girón, J. C., Pérez-Haase, A., Petriccione, B., Philipson, P., Pit, I. R., Pladevall-Izard, E., Pop, D. A., Puerta-Piñero, C., Quaranta, M., Radoux, J., Rasmussen, J. J., Renan, I., Reubens, J., Roeoesli, C., Rolph, S., Rūsiņa, S., Samoila, C., Santana, J., Schakel, J. K., Schepers, L., Schletterer, M., Schmidt-Kloiber, A., Seeber, J., Shi, Y., Shinneman, S., Smets, B., Soares, J., Soccodato, A., Solé-Medina, A., Sorvari, J., Sousa, R., Souza, A. T., Souza Dias, A., Spinosa, A., Strasser, T., Thulin, S. M., Trottet, A., Turicchia, E., Uriarte, A., Vagenas, G., Valdez, J., Vallefuoco, F., Van de Putte, A. P., Van Grunsven, R. H. A., Vicente, J., Villegas-Rios, D., Villero, D., Viti, M. M., Vriend, S. J. G., Walentowitz, A., Ward, R. J., Wijesingha, J., Zhang, J., Ziemba, A., Zimmermann, J. & Kissling, W. D., 14-Apr-2024, 297 p.

    Research output: Book/Report › Book not published by INBO

    Open Access
    File
    351 Downloads (Pure)

  • European Dragonflies: Moving from assessment to conservation planning

    De Knijf, G., Billqvist, M., van Grunsven, R., Allen, D., Assandri, G., Bellotto, V., Bruslund, S., Bedjanič, M., Conze, K.-J., Diaz-Martinez, C., Dolný, A., Ferreira, S., Garn, A., Goertzen, D., Holzinger, W., Houard, X., Hunger, H., Jeanmougin, M., Jović, M. & Kalniņš,, M. & 24 others, Karlsson, T., Kazila, E., Kitanova, D., Kulijer, D., Leus, K., Lohr, M., Maynou, X., Motte, G., Múrria, C., Olsen, K., Prunier, F., Sahlén, G., Schiel, F.-J., Šácha, D., Šigutová, H., Sparrow, D., Sparrow, R., Tańczuk, A., Tarkowski, A., Taylor, P., Trottet, A., Vilenica, M., Vinko, D. & Lees, C., 2024, 30 p. (A report to the European Commission)

    Research output: Book/Report › Report not published by INBO

    Open Access
    File
    120 Downloads (Pure)

  • European Red List of Dragonflies & Damselflies (Odonata): Measuring the pulse of European biodiversity

    De Knijf, G., Billqvist, M., van Grunsven, R. H. A., Prunier, F., Vinko, D., Trottet, A., Bellotto, V., Clay, J. & Allen, D. J., 2024, 47 p.

    Research output: Book/Report › Report not published by INBO

    Open Access
    File
    482 Downloads (Pure)

  • Hoe we de bedreigde Kempense heidelibel proberen te redden

    Van Den Boer, M., De Knijf, G. & Ledegen, H., 2024, Natuurpunt.

    Research output: Other contribution › Online publication - Web publication

    Open Access