Dr Alex Dumbrell works at the School of Biological Sciences, University of Essex, UK.

• 1. Opportunities and challenges for transformation of urban social-ecological systems Ahjond Garmestani, J.B. Ruhl, Jorge H. Garcia, Herman Kasper Gilissen, Craig R. Allen, Tarsha Eason, Lance Gunderson, Helena F.M.W. van Rijswick, and David G. Angeler 2. Omnivory in Soil Systems Is Facilitated by the Allometric Distribution of Trophic Links’ Lengths Erminia Conti, Giorgio Mancinelli, and Christian Muldera 3. Dialectical ecosystems: theory and applications David G. Angeler and Julie E. Maybee 4. A metacoupling lens on the co-production of nature’s contributions to people: insights for sustainability Anna Mayer, Berta Martín-López, Bruno Locatelli, Gabriela Rabeschini, Jianguo Liu, Jacqueline Loos, María R. Felipe-Lucia, Maraja Riechers, and Roman Isaac

Dr Alex Dumbrell works at the School of Biological Sciences, University of Essex, UK.

• 1. Opportunities and challenges for transformation of urban social-ecological systems Ahjond Garmestani, J.B. Ruhl, Jorge H. Garcia, Herman Kasper Gilissen, Craig R. Allen, Tarsha Eason, Lance Gunderson, Helena F.M.W. van Rijswick, and David G. Angeler 2. Omnivory in Soil Systems Is Facilitated by the Allometric Distribution of Trophic Links’ Lengths Erminia Conti, Giorgio Mancinelli, and Christian Muldera 3. Dialectical ecosystems: theory and applications David G. Angeler and Julie E. Maybee 4. A metacoupling lens on the co-production of nature’s contributions to people: insights for sustainability Anna Mayer, Berta Martín-López, Bruno Locatelli, Gabriela Rabeschini, Jianguo Liu, Jacqueline Loos, María R. Felipe-Lucia, Maraja Riechers, and Roman Isaac

Dr Alex Dumbrell works at the School of Biological Sciences, University of Essex, UK.

• 1. Opportunities and challenges for transformation of urban social-ecological systems Ahjond Garmestani, J.B. Ruhl, Jorge H. Garcia, Herman Kasper Gilissen, Craig R. Allen, Tarsha Eason, Lance Gunderson, Helena F.M.W. van Rijswick, and David G. Angeler 2. Omnivory in Soil Systems Is Facilitated by the Allometric Distribution of Trophic Links’ Lengths Erminia Conti, Giorgio Mancinelli, and Christian Muldera 3. Dialectical ecosystems: theory and applications David G. Angeler and Julie E. Maybee 4. A metacoupling lens on the co-production of nature’s contributions to people: insights for sustainability Anna Mayer, Berta Martín-López, Bruno Locatelli, Gabriela Rabeschini, Jianguo Liu, Jacqueline Loos, María R. Felipe-Lucia, Maraja Riechers, and Roman Isaac