Sato, Chloe F.; Lindenmayer, David B. (2018). «Meeting the Global Ecosystem Collapse Challenge». Conservation Letters11 (1): e12348. doi:10.1111/conl.12348.
Bland, L.; Rowland, J.; Regan, T.; Keith, D.; Murray, N.; Lester, R.; Linn, M.; Rodríguez, J.P. et al. (2018). «Developing a standarized definition of ecosystem collapse for risk assessment». Frontiers in Ecology and the Environment16 (1): 29-36. doi:10.1002/fee.1747.Se sugiere usar |número-autores= (ayuda)
Andrew Van Dam (29 de marzo de 2024). «Wait, does America suddenly have a record number of bees?». Washington Post(en inglés). Consultado el 1 de abril de 2024. «America’s honeybee population has rocketed to an all-time high […] We’ve added almost a million bee colonies in the past five years. We now have 3.8 million, the census shows […] the honeybee has been the fastest-growing livestock segment in the country».
