Posdoctoral researcher (University of Murcia)

• PhD. in Animal Ecology. University of Murcia, 2008. Use of the Iberian water beetles in biodiversity conservation (Awarded as the best Thesis in Biology, University of Murcia, 2007-08).
• M.S. in Animal Biology and Ecology: Environmental Perspectives. University of Murcia, 2002

email: davidsan@um.es
Google scholar profile
Personal website

Research interest:

• Ecology and evolution of aquatic and subterranean biodiversity.
• Biogeography and predictive modelling. 
• Ecophysiology and evolution of insects.
• Climate change and biodiversity conservation.

Career history:

• Universidade Estadual Paulista  (UNESP, Brasil). 2000.
• National Museum of Natural Sciences (CSIC), Madrid (Spain). 2009-2011.
• University of Plymouth (UK). 2007.
• University of Murcia (Spain). Contrato de reincoporación Saavedra-Fajardo. 2011.
• Institut of Evolutionary Biology (CSIC-UPF), Barcelona (Spain). 2012-2015.
• Doñana Biological Station (CSIC), Sevilla (Spain), 2012.
• University of Castilla-La Mancha. Toledo Spain. 2015-2018.
• City University of New York. (CUNY, USA). 2016.
• University of Lisbon. CiBio-InBio. Lisbon (Portugal) 2017.
• University of Murcia (2018- present)

Selected publications:

Submitted

SÁNCHEZ-FERNÁNDEZ, D.; FOX, R.; DENNIS, R.H.L. & LOBO, JM. How complete are insect inventories? An assessment of the British butterfly database highlighting the influence of distribution shifts due to climatic changes.

PALLARÉS, S.; COLADO, C.; MONTES, A.; BALART-GARCÍA, P.; BILTON, D.T.; MILLÁN, A.; RIBERA, I. & SÁNCHEZ-FERNÁNDEZ, D. Loss of heat acclimation capacity could leave subterranean specialists highly vulnerable to global change. Submitted

PALLARÉS, S.; SANCHEZ-HERNANDEZ, J.C.; COLADO, R.; BALART-GARCÍA, P.; COMAS, J. & SÁNCHEZ-FERNÁNDEZ, D. Beyond survival experiments: using biomarkers of oxidative stress and 2 neurotoxicity to assess vulnerability of subterranean fauna to climate change.

POLIDORI, C. & SÁNCHEZ-FERNÁNDEZ, D. Environmental niches and potential distributions of two alien Megachile bees at a global scale.

SÁNCHEZ-FERNÁNDEZ, D.; BAQUERO, R.A.; VELASCO, L.; ARANDA, A. & NICOLA, G.G. Assessing the role of aquatic Natura 2000 network to protect both freshwater European species of community interest and threatened species.

MEGNA, Y.S. & SÁNCHEZ-FERNÁNDEZ, D. Conservation of aquatic insects in Neotropical regions: a gap analysis using potential distributions of diving beetles in Cuba.

2020

PALLARÉS, S.; COLADO, R.; PÉREZ-FERNÁNDEZ, T.; WESENER, T.; RIBERA, I. & SÁNCHEZ-FERNÁNDEZ, D. 2020. Heat tolerance and acclimation capacity in subterranean arthropods living under common and stable thermal conditions. Ecology and Evolution, 9: 13731-13739.

GUTIÉRREZ-CÁNOVAS, C.; SÁNCHEZ-FERNÁNDEZ, D.; GONZÁLEZ-MORENO, P.; MATEOS-NARANJO, E.; CASTRO-DÍEZ, P. & VILÀ, M. 2020. Combined effects of land-use intensification and plant invasion on native communities. Oecologia, 192: 823–836.

PALLARÉS, S.; MILLÁN, A.; MIRÓN, JM.; VELASCO, J.; SÁNCHEZ-FERNÁNDEZ, D.; BOTELLA-CRUZ M & ABELLÁN P. 2020. Assessing the capacity of endemic alpine water beetles to face climate change. Insect Conservation & Diversity, 13:271-282.

ARAGÓN, P.; SÁNCHEZ-FERNÁNDEZ, D. & HERNANDO, C. 2019. Use of satellite images to characterize the spatio-temporal dynamics of primary productivity in hotspots of endemic Iberian butterflies Ecological Indicators, 106: 105449.  

POLIDORI, C.; GUTIÉRREZ-CÁNOVAS, C..; SÁNCHEZ, E.; TORMOS, J.; CASTRO, L.; SÁNCHEZ-FERNÁNDEZ, D. 2019. Climate change-driven body size shrinking in a social wasp. Ecological Entomology, 45: 130-141.

PALLARÉS S.; LAI, M.; ABELLÁN, P.; RIBERA, I & SÁNCHEZ-FERNÁNDEZ, D. 2019. An interspecific test of Bergmann’s rule reveals inconsistent body size patterns across several lineages of water beetles (Coleoptera: Dytiscidae). Ecological Entomology, 44:249-254.

SLIMANI, N.; SÁNCHEZ-FERNÁNDEZ, D.; GUILBERT, E.; BOUMAÏZ, M.; GUARESCHI, S & THIOULOUSE, J. 2019. Assessing potential surrogates of macroinvertebrate diversity in North-African Mediterranean aquatic ecosystems. Ecological Indicators, 101: 324-329.

ARRIBAS, P.; GUTIÉRREZ-CÁNOVAS, C.; BOTELLA-CRUZ, M.; CAÑEDO-ARGÜELLES, M.; CARBONELL, JA.; MILLÁN, A.; PALLARÉS, S.; VELASCO, J. & SÁNCHEZ-FERNÁNDEZ D*. 2019. Insect communities in saline waters consist of realized but not fundamental niche specialists. Phil. Trans. R. Soc. B 374, 20180008.

GUTIÉRREZ-CÁNOVAS, C.; SÁNCHEZ-FERNÁNDEZ, D.; CAÑEDO-ARGÜELLES, M.; MILLÁN, A.; VELASCO, J.; ACOSTA, R.; FORTUÑO, P.; OTERO, N.; SOLER, A. & BONADA, N. 2019. Do all roads lead to Rome? Exploring community trajectories in response to anthropogenic salinization and dilution of rivers. Phil. Trans. R. Soc. B 374, 20180009.

VELASCO, J.; GUTIÉRREZ-CÁNOVAS, C.; BOTELLA-CRUZ, M.; SÁNCHEZ-FERNÁNDEZ, D.; ARRIBAS, P.; CARBONELL, JA.; MILLÁN, A. & PALLARÉS S. 2019. Effects of salinity changes on aquatic organisms in a multiple stressor context. Phil. Trans. R. Soc. B 374, 20180011.

POLIDORI, C.; NUCIFORA, M. & SÁNCHEZ-FERNÁNDEZ, D. 2018. Environmental niche unfilling but limited options for range expansion by active dispersion in an alien cavity-nesting wasp. BMC Ecology 18 (1), 36

LOBO, J.M.; HORTAL, J.; YELA, J.L.; MILLÁN, A.; SÁNCHEZ-FERNÁNDEZ, D.; GARCÍA-ROSELLÓ, E.; GONZÁLEZ-DACOSTA, J.; HEINE, J.; GONZÁLEZ-VILAS, L & GUISANDE, C.  2018. KnowBR: An application to map the geographical variation of survey effort and identify well-surveyed areas from biodiversity databases. Ecological indicators, 91.; 241-248.

GUARESCHI, S.; MELLADO-DÍAZ, A.; PUIG, MA & SÁNCHEZ-FERNÁNDEZ, D. 2018. On the Iberian endemism Eurylophella iberica Keffermuller and Da Terra 1978 (Ephemeroptera.; Ephemerellidae): current and future potential distributions.; and assessment of the effectiveness of the Natura 2000 network on its protection. Journal of Insect Conservation, 22:127-134.

SÁNCHEZ-FERNÁNDEZ, D.; RIZZO, V.; BOURDEAU, C.; CIESLAK, A.; COMAS, J.; FAILLE, A.; FRESNEDA, J.; LLEOPART, E.; MILLÁN, A.; MONTES, A.; PALLARES, S. & RIBERA.; I. 2018. The deep subterranean environment as a potential model system in ecological.; biogeographical and evolutionary research. Subterranean Biology, 25: 1-7,

SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P.; ARAGÓN, P.; VARELA, S. & CABEZA, M. 2018. Matches and mismatches between conservation investments and biodiversity values in the European Union. Conservation Biology, 32: 109–115.

ROSSO, A.; ARAGÓN, P.; ACEVEDO, F.; DOADRIO, I.; GARCÍA-BARROS, E.; LOBO, J.M.; MUNGUIRA, M.L.; MONSERRAT, V.J.; PALOMO, J.; PLEGUEZUELOS, J.M.; ROMO, H.; TRIVIÑO, V. & SÁNCHEZ-FERNÁNDEZ, D. 2018. Effectiveness of the Natura 2000 network in protecting Iberian endemic fauna. Animal Conservation, 21: 262-271.

MEGNA, Y.S.; SÁNCHEZ-FERNÁNDEZ, D.; FERNÁNDEZ-GARCÍA, I; BALKE, M. & REYES-TUR, B. 2018. Vulnerabilidad de las especies de Dytiscidae (Coleoptera) en Cuba. Revista de Biología Tropical, 66(2): 709-721.

RIZZO, V.; SÁNCHEZ-FERNÁNDEZ, D.; ALONSO, R.; PASTOR, J. & RIBERA, I. 2017. Substratum karstificability, dispersal and genetic structure in a strictly subterranean beetle. Journal of Biogeography, 44: 2527–2538.

LISÓN, F. & SÁNCHEZ-FERNÁNDEZ, D. 2017. Low effectiveness of the Natura 2000 network in preventing land-use change in bat hotspots. Biodiversity and Conservation, 26: 1989–2006.

SÝKORA, V.; GARCÍA-VÁZQUEZ, D.; SÁNCHEZ-FERNÁNDEZ, D.; & RIBERA, I. 2017. Range expansion and ancestral niche reconstruction in the Mediterranean diving beetle genus Meladema (Coleoptera, Dytiscidae). Zoologica Scripta, 46:445–458.

BRUNO, D; GUTIÉRREZ-CÁNOVAS, C.; VELASCO, J. & SÁNCHEZ-FERNÁNDEZ, D. 2016. Functional redundancy as a tool for bioassessment: A test using riparian vegetation. Science of The Total Environment, 566-567: 1268–1276

SÁNCHEZ-FERNÁNDEZ, D.; ARRIBAS, P. & ABELLÁN, P. 2016. Advances and s between ecological niche models and phylogeography. Frontiers in Biogeography, (* included in Scopus) 8.4, e32338.

SÁNCHEZ-FERNÁNDEZ, D.; RIZZO, V.; CIESLAK, A.; FAILLE, A.; FRESNEDA, J. & RIBERA, I. 2016. Thermal niche estimators and the capability of poor dispersal species to cope with climate change. Scientific Reports, 6, 23381

BRUNO, D., GUTIÉRREZ-CÁNOVAS, C., SÁNCHEZ-FERNÁNDEZ, D., VELASCO, J. & NILSSON. C. 2016. Impacts of environmental filters on functional redundancy in riparian vegetation. Journal of Applied Ecology, 53:846-855.

SÁNCHEZ-FERNÁNDEZ, D., MILLÁN, A., ABELLÁN, P., PICAZO, F., CARBONELL, J.A. & RIBERA, I. 2015 Atlas of Iberian water beetles (ESACIB database) Zookeys, 520: 147-154.

ARAGÓN, P.; SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P. & VARELA, S. 2015. Effects of temporal bias on the assessment of an ecological perturbation: A case study of the Prestige oil spill. Environmental Research Letters, 10 094006.

LISÓN, F.; SÁNCHEZ-FERNÁNDEZ, D. & CALVO, J.F. 2015. Are species listed in the Annex II of the Habitats Directive better represented in Natura 2000 network than the remaining species? A test using Spanish bats. Biodiversity and Conservation, 24: 2459-2473.

ABELLÁN, P. & SÁNCHEZ-FERNÁNDEZ, D. 2015. A gap analysis comparing the effectiveness of Natura 2000 and national protected area networks in representing European amphibians and reptiles. Biodiversity and Conservation, 24 (6):1377-1390. 

GUTIÉRREZ-CÁNOVAS, C.; SÁNCHEZ-FERNÁNDEZ, D.; VELASCO, J.; MILLÁN, A. & BONADA, N. 2015. Similarity in the difference: changes in community functional features along natural and anthropogenic stress gradients. Ecology, 96:2458–2466.

RIZZO, V.; SANCHEZ-FERNANDEZ, D.; FRESNEDA, J.; CIESLAK, A. & RIBERA, I. 2015. Lack of evolutionary adjustment to ambient temperature in highly specialized cave beetles. BMC Evolutionary Biology, 2015, 15:10.

SÁNCHEZ-FERNÁNDEZ, D. & ABELLÁN, P. 2015. Using null models to identify under-represented species in protected areas: a case study using European amphibians and reptiles. Biological Conservation, 184: 290-299.

HIDALGO-GALIANA, A.; SÁNCHEZ-FERNÁNDEZ, D.; BILTON, D.T.; CIESLAK, A. & RIBERA, I. 2014. Thermal niche evolution and geographical range expansion in a species complex of western Mediterranean diving beetles. BMC Evolutionary Biology 2014, 14:187

BRUNO, D.; BELMAR, O.; SÁNCHEZ-FERNÁNDEZ, D.; GUARESCHI, S.; MILLÁN, A. & VELASCO, J. 2014. Responses of Mediterranean aquatic and riparian communities tohuman pressures at different spatial scales. Ecological Indicators, 45: 456–464.

BRUNO, D.; BELMAR, O.; SÁNCHEZ-FERNÁNDEZ, D. & VELASCO, J. 2014. Environmental determinants of woody and herbaceous riparian vegetation patterns in a semi-arid Mediterranean basin. Hydrobiologia, 730: 45-57.

SUÁREZ-MEGNA, Y. & SÁNCHEZ-FERNÁNDEZ, D. 2014. Desmopachria andreae a new species (Coleoptera: Dytiscidae: Hydroporinae) from Cuba, with the prediction of its geographic distribution. Zootaxa, 3753: 585–596.

MILLÁN, A.; PICAZO, F.; FERY, H.; MORENO, J.L. & SÁNCHEZ-FERNÁNDEZ, D. 2013. Stictonectes abellani sp. n. (Coleoptera: Dytiscidae: Hydroporinae) from the Iberian Peninsula, with notes on the phylogeny, ecology and distribution of the Iberian species of the genus. Zootaxa, 3745: 533–550.

SÁNCHEZ-FERNÁNDEZ, D. ABELLÁN, P., PICAZO, F., MILLÁN, A., RIBERA, I. & LOBO, J.M. 2013. Do protected areas represent species’ optimal climatic conditions? Diversity and Distributions, 19: 1407-1417.

ABELLÁN, P.; SÁNCHEZ-FERNÁNDEZ, D.; PICAZO, F.; MILLÁN, A.; LOBO, J.M. & RIBERA, I. 2013. Preserving the evolutionary history of freshwater biota in Iberian National Parks. Biological Conservation, 162: 116–126.

ARAGÓN, P. & SÁNCHEZ-FERNÁNDEZ, D. 2013. Can we disentangle predator-prey interactions from species distributions at a macro-scale? A case study with a raptor species. Oikos, 122:64-72.

ARRIBAS, P.; ANDÚJAR, C.; SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P. & MILLÁN, A. 2013. Integrative taxonomy and conservation of cryptic beetles in the Mediterranean region (Hydrophilidae). Zoologica Scripta, 42: 182-200.

GUARESCHI, S.; COCCIA, C.; SÁNCHEZ-FERNÁNDEZ, D.; CARBONELL, J.A.; VELASCO, J.; BOYERO, L.; GREEN, A.J. & MILLÁN, A. 2013. How far could the alien boatman Trichocorixa verticalis verticalis spread? Worldwide estimation of its current and future potential distribution. PLoS ONE 8(3): e59757.

HERNÁNDEZ-MANRIQUE, O.L.; SÁNCHEZ-FERNÁNDEZ, D.; NUMA, C.; GALANTE, E.; VERDÚ, J.R. & LOBO, J.M. 2013. Extinction trends of threatened invertebrates in peninsular Spain. Journal of Insect Conservation, 17:235–244.

ARRIBAS, P.; ABELLÁN, P.; VELASCO, J.; BILTON, D.T.; MILLÁN, A. & SÁNCHEZ-FERNÁNDEZ, D. 2012. Evaluating drivers of vulnerability to climate change: a guide for insect conservation strategies. Global Change Biology, 18:2135:2146.

ARRIBAS, P.; VELASCO, J.; ABELLÁN, P.; SÁNCHEZ-FERNÁNDEZ, D.; ANDÚJAR, C.; CALOSI, P.; MILLÁN, A.; RIBERA, I. & BILTON, D.T. 2012. Does dispersal ability or ecological tolerance drive differences in range size between lentic and lotic water beetles? Journal of Biogeography, 39 (5): 984–994.

BRUNO, D.; SÁNCHEZ-FERNÁNDEZ, D.; CARBONELL J. A.; PICAZO F.; VELASCO J. & MILLÁN, A. 2012. Predicting aquatic insect richness in a semi-arid Mediterranean region. Limnetica, 31(1): 23-36.

BRUNO, D.; SÁNCHEZ-FERNÁNDEZ, D.; MILLÁN, A.; ROS, R.M.; SÁNCHEZ-GÓMEZ, P. & VELASCO J. 2012.Assessing the quality and usefulness of different taxonomic groups inventories in a semiarid Mediterranean region. Biodiversity and Conservation, 21(6): 1561-1575.

GUARESCHI, S.; GUTIÉRREZ-CÁNOVAS, C.; PICAZO, F.; SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P.; VELASCO, J. & MILLÁN, A. 2012. Aquatic macroinvertebrate biodiversity: patterns and surrogates in mountainous Spanish national parks. Aquatic Conservation: Marine and Freshwater Ecosystems, 22: 598-615.

HERNÁNDEZ-MANRIQUE, O.L.; SÁNCHEZ-FERNÁNDEZ, D.; VERDÚ, J.R.; NUMA, C.; GALANTE, E. & LOBO, J.M. 2012. Using local autocorrelation analysis to identify conservation areas: an example considering threatened invertebrate species in Spain. Biodiversity and Conservation. 21: 2127-2137.

PICAZO, F., BILTON, D.T., MORENO, J.L., SÁNCHEZ-FERNÁNDEZ, D., & MILLÁN, A. 2012. Water beetle biodiversity in Mediterranean standing waters: assemblage composition, environmental drivers and nestedness patterns. Insect Diversity and Conservation, 5: 146–158.

SÁNCHEZ-FERNÁNDEZ, D.; ARAGÓN, P.; BILTON, D.T. & LOBO J.M. 2012. Assessing the congruence of thermal niche estimations derived from distribution and physiological data. A Test Using Diving Beetles. Plos ONE, 7(10): e48163.

SÁNCHEZ-FERNÁNDEZ, D.; LOBO J.M.; MILLÁN A. &. RIBERA I. 2012. Habitat type mediates time to equilibrium in the geographical distribution of Iberian diving beetles. Global Ecology and Biogeography, 21: 988-997.

MILLÁN, A.; VELASCO, J.; GUTIÉRREZ-CÁNOVAS, C.; ARRIBAS, P.; PICAZO, F; SÁNCHEZ-FERNÁNDEZ, D. & ABELLÁN, P. 2011. Mediterranean saline streams in southeast Spain: What do we know? Journal of Arid Environments, 75: 1352-1359.

SÁNCHEZ-FERNÁNDEZ, D.; LOBO J.M.; ABELLÁN P. & MILLÁN, A. 2011. How to identify future sampling areas when information is biased and scarce: an example using predictive models for species richness of Iberian water beetles. Journal for Nature Conservation, 19: 54-59.

SÁNCHEZ-FERNÁNDEZ, D.; LOBO J.M.; ABELLÁN P. & MILLÁN A. 2011. Environmental niche divergence between genetically distant lineages of an endangered water beetle. Biological Journal of the Linnaean Society, 103: 891-903.

SÁNCHEZ-FERNÁNDEZ, D.; LOBO J.M.; HERNÁNDEZ-MANRIQUE, O.L. 2011. Species distribution models that do not incorporate global data misrepresent potential distributions: a case study using Iberian diving beetles. Diversity and Distributions, 17: 163–171.

SÁNCHEZ-FERNÁNDEZ, D.; CALOSI, P.; ATTFIELD, A.; ARRIBAS, P.; VELASCO, J. SPICER, J.I., MILLÁN, A. & BILTON, D.T. 2010. Reduced salinities compromise the thermal tolerance of hypersaline specialist diving beetles (Coleoptera, Dytiscidae). Physiological Entomology, 34: 365-373.

BENNÁS, N.; SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P. & MILLÁN, A. 2009. Analyse de la vulnérabilité des coléoptères aquatiques dans la rive sud méditerranéenne: cas du Rif Marocain. Annales de la Société Entomologique de France, 45: 309-320.

SÁNCHEZ-FERNÁNDEZ, D., BILTON D.T., ABELLÁN P., RIBERA I., VELASCO J. & MILLÁN A. 2008. Are the endemic water beetles of the Iberian Peninsula and the Balearic Islands effectively protected? Biological Conservation, 141: 1612-1627.      

SÁNCHEZ-FERNÁNDEZ, D., LOBO J.M., ABELLÁN P., RIBERA I. & MILLÁN, A . 2008. Bias in freshwater biodiversity sampling: the case of Iberian water beetles. Diversity and Distributions, 14: 754-762.

ABELLÁN, P.; GÓMEZ-ZURITA, J.; MILLÁN, A.; SÁNCHEZ-FERNÁNDEZ, D.; VELASCO, J.; GALIÁN, J. & RIBERA I. 2007. Conservation genetics in hypersaline inland waters: mitochondrial diversity and phylogeography of an endangered Iberian beetle (Coleoptera: Hydraenidae). Conservation Genetics, 8: 79–88.

ABELLÁN, P.; SÁNCHEZ-FERNÁNDEZ, D.; VELASCO, J. & MILLÁN, A. 2007. Effectiveness of protected area networks in representing freshwater biodiversity: the case of a Mediterranean river basin (SE Spain). Aquatic Conservation: Marine and Freshwater Ecosystems, 17: 361-374.

ABELLÁN, P., BILTON, D.T., MILLÁN, A., SÁNCHEZ-FERNÁNDEZ, D. & RAMSAY, P.M. 2006. Can taxonomic distinctness assess anthropogenic impacts in inland waters? A case study from a Mediterranean river basin. Freshwater Biology, 51: 1744-1756.

ABELLÁN, P.; SÁNCHÉZ-FERNÁNDEZ, D.; MILLÁN, A.; BOTELLA, F.; SÁNCHEZ-ZAPATA, J.A. & GIMÉNEZ, A. 2006. Irrigation pools as macroinvertebrate habitat in a semi-arid agricultural landscape (SE Spain). Journal of Arid Environments, 67: 255-269.                     

SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P., MELLADO, A., VELASCO, J. & MILLÁN, A. 2006. Are water beetles good indicators of biodiversity in Mediterranean aquatic ecosystems? The case of the Segura river basin (SE Spain). Biodiversity and Conservation, 15: 4507-4520.

VELASCO, J.; LLORET, J.; MILLAN, A., MARIN, A., BARAHONA, J., ABELLÁN, P. & SANCHEZ-FERNANDEZ, D. 2006 Nutrient and particulate imputs into the Mar Menor lagoon from an intensive agricultural watershed. Water, Air and Soil Pollution, 176: 255-269.  

ABELLÁN, P.; SÁNCHEZ-FERNÁNDEZ, D.; VELASCO, J. & MILLÁN, A. 2005. Assessing conservation priorities for insects: status of water beetles in southeast Spain. Biological Conservation, 121: 79-90.

ABELLÁN, P.; SÁNCHEZ-FERNÁNDEZ, D.; VELASCO, J. & MILLÁN, A. 2005.  Conservation of freshwater biodiversity: a comparison of different area selection methods.  Biodiversity and Conservation, 14: 3457-3474.

SÁNCHEZ-FERNÁNDEZ, D.; ABELLÁN, P.; VELASCO, J. & MILLÁN, A. 2004.  Selecting areas to protect the biodiversity of aquatic ecosystems in a semiarid Mediterranean region using water beetles. Aquatic Conservation: Marine and Freshwater Ecosystems, 14: 465-479.

Updated: 8th june 2020