The Journal of Systematics and Evolution would like to acknowledge and thank the following reviewers for their contributions in the period January 1–December 31 in 2019:
Abbott, Richard
Abdelaziz, Mohamed
Appelhans, Marc
Aptroot, Andre
Bachelier, Julien
Bai, Wei‐Ning(白伟宁)
Balao, Francisco
Barker, Bill
Barkworth, Mary E.
Bauret, Lucie
Berrached, Rachda
Besnard, Guillaume
Bisang, Irene
Blanco, Candela
Bomfleur, Benjamin
Boratyński, Adam
Campillo, Luke C.
Capblancq, Thibaut
Castells, Juli Caujape
Cellinese, Nico
Chanderbali, Andre
Charboneau, Joseph
Chen, Wen‐Li(陈文俐)
Chen, Zhi‐Duan(陈之端)
Clement, Wendy
Cohen, James
Costion, Craig M.
Cronberg, Nils
Crowl, Andrew A.
Davies, Jonathan
De Franceschi, Dario
de Jong, Hans
Del Rio, Cedric
Dickinson, Timothy A.
Drummond, Chloe
Du, Fang(杜芳)
Duckett, Jeffrey
Düsseldorf, Klaus
Ebersbach, Jana
Ebihara, Atsushi
Elliott, Tammy L.
Endress, Peter
Escudero, Marcial
Fan, Xing(凡星)
Favre, Adrien
Feldberg, Kathrin
Feliner, Gonzalo
Fior, Simone
Frajman, Bozo
Fu, Chao‐Nan
Fujiwara, Tao
Fuse, Shizuka
Gao, Lian‐Ming(高连明)
Gao, Yong
Gasson, Pete
Ge, Xue‐Jun(葛学军)
Giussani, Liliana
Granados‐Mendoza, Carolina
Gueidan, Cecile
Guo, Chun‐Ce
Guo, Wen‐Wu(郭文武)
Guo, Ya‐Long(郭亚龙)
Guo, Yan‐Ping(郭延平)
Hao, Gang(郝刚)
Hassel, Kristian
Hassler, Michael
Haufler, Christopher
Hawksworth, David
Herrera, Fabiany
Hervías, Sandra
Ho, Boon Chuan
Hojsgaard, Diego
Hovenkamp, Peter
Huang, Shuang‐Quan(黄双全)
Ickert‐Bond, Stefanie
Ignatov, Michael
Iles, Will
Jia, Gui‐Xia(贾桂霞)
Jiang, Xiao‐Long
Jin, Jian‐Hua(金建华)
Kang, Ji-Chuan(康冀川)
Knoop, Volker
Kowlski, Rafal
Krak, Karol
Krämer, Ute
Kvaček, Jiří
Lakusic, Dmitar
Larhammar, Dan
Lashermes, Philippe
Lazaro, Amparo
Li, Jianhua(李建华)
Li, Lin‐Feng(李霖锋)
Li, Ling
Li, Min‐Jie
Li, Rong(李嵘)
Li, Ying‐Hui(李英慧)
Li, Zheng
Li, Zhong‐Hu(李忠虎)
Lim, Jun Ying
Lin, Zhenguo
Liu, Jie(刘杰)
Liu, Zhong‐Jian(刘仲健)
López‐Pujol, Jordi
Luo, Zhong‐Lai(罗中莱)
Ma, Jian‐Chao
Ma, Xiao(马啸)
Ma, Yong‐Peng(马永鹏)
Magallon, Susana
Mairal Pisa, Mario
Manchester, Steven
Mao, Jian‐Feng
Mao, Kang‐Shan(毛康珊)
McDonnell, Angela
McPartland, John
Meza‐Torres, Esteban
Montserrat Martí, Josep M.
Morgan, David
Moyle, Robert G.
Murrell, Zack
Nauheimer, Lars
Nelson, C. Dana
Ni, Zhong‐Fu(倪中福)
Nie, Ze‐Long(聂泽龙)
Noshiro, Shuichi
Ollerton, Jeff
Olmstead, Richard
Olsson, Sanna
Pannell, Caroline
Paule, Juraj
Pederneiras, Leandro
Percy, Diana
Peruzzi, Lorenzo
Picco, Anna Maria
Pigg, Kathleen
Pirani, Atefeh
Plunkett, Greg
Potter, Daniel
Qian, Hong(钱宏)
Qiu, Ying‐Xiong(邱英雄)
Rao, Guang‐Yuan(饶广远)
Reeves, Patrick
Regalado, Ledis
Reginato, Marcelo
Reisch, Christoph
Ren, Zong‐Xin(任宗昕)
Riess, Kai
Roedelsperger, Christian
Roeser, Martin
Rojas‐Andrés, Blanca
Rong, Jun(戎俊)
Ronse De Craene, Louis
Roux, Claude
Rubin, Matthew J.
Sakai, Hiroaki
Santos, Carmen
Sauquet, Hervé
Schinnerl, Johann
Sengupta, Aniket
Simpson, Michael
Singliarová, Barbora
Smedmark, Jenny
Smith, James
Snow, Neil
Sochting, Ulrik
Sønstebø, Jørn Henrik
Spalink, Daniel
Stark, Lloyd
Stevens, Peter
Su, Tao(苏涛)
Sun, Feng‐Jie
Sun, Hang(孙航)
Sun, Yong‐Shuai(孙永帅)
Sundue, Michael
Surget‐Groba, Yann
Tate, Jennifer A.
Tembrock, Luke
Testo, Weston
Tu, Tie‐Yao(涂铁要)
Uemura, Kazuhiko
Ulrich, Werner
Vanderpoorten, Alain
Vera, Ezequiel
Verstraete, Brecht
Vigueira, Cynthia
Vit, Petr
Walker, Joseph F.
Wallander, Eva
Wang, Heng‐Chang(王恒昌)
Wang, Jing
Wang, Wei(王伟)
Wang, Ying‐Qiang(王英强)
Wang, Yu‐Fei(王宇飞)
Webb, Campbell
Wedger, Marshall
Wen, Jun(文军)
Weng, Ensheng
Wester, Petra
Westerberg, Lars
Wilf, Peter
Williams, David
Wu, Zhi‐Qiang
Xia, Hui(夏辉)
Xiao, Guang-Hui(肖光辉)
Xu, Feng‐Xia(徐凤霞)
Xu, Qiang(徐强)
Xu, Xiao‐Ting(徐晓婷)
Yang, Jun(杨君)
Yang, Qin‐Er(杨亲二)
Yang, Ze‐Feng(杨泽峰)
Yi, Ting‐Shuang(伊廷双)
Yu, Yan
Yu, Ying(俞英)
Zarre, Shahin
Zhai, Wei‐Wei(翟巍巍)
Zhang, Fa‐Qi(张发起)
Zhang, Jian‐Wen(张建文)
Zhang, Liang‐Sheng(张亮生)
Zhang, Wen‐Heng(张文衡)
Zhang, Yong(张勇)
Zhang, Ze‐Huang
Zhang, Zhi‐Yong(张志勇)
Zhong, Bo‐Jian(钟伯坚)
Zhou, Tao
Zhou, Yong‐Feng
Zhu, Hai(朱海)
Zuntini, Alexandre