Special Issues

Diversity publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Foraminiferal Research: Modern Approaches and Emerging Trends
edited by Patricia Eichler, Moab Praxedes Gomes and Jere H. Lipps
submission deadline 30 Sep 2026 | 4 articles | Viewed by 11475 | Submission Open
Keywords: foraminiferal studies; environmental monitoring; paleoclimate reconstruction; biogeography
(This special issue belongs to the Section Marine Diversity)
Taxonomy, Phylogeny and Biogeography of Cnidaria submission deadline 30 Sep 2026 | 4 articles | Viewed by 10910 | Submission Open
Keywords: systematic; distribution; Anthozoa; Medusozoa; cnidarians
Genetic Diversity and Evolutionary Potential: Impacts of Habitat Fragmentation
edited by Mary M. Peacock
submission deadline 30 Sep 2026 | 2 articles | Viewed by 9312 | Submission Open
Keywords: habitat fragmentation; habitat connectivity; gene flow; dispersal; evolutionary potential; adaptive capacity; random genetic drift; genetic rescue
(This special issue belongs to the Section Biogeography and Macroecology)
Ecology, Distribution, Impacts, and Management of Invasive Plants
edited by and
submission deadline 30 Sep 2026 | 5 articles | Viewed by 8386 | Submission Open
Keywords: invasive alien plants; invasion mechanism; invasiveness; invasibility; potential distribution; economical, ecological, and environmental impacts; biotic and abiotic interactions; chemical control; biological and ecological management
(This special issue belongs to the Section Plant Diversity)
Integrating Spatial Phylogenetic, and Taxonomic Approaches to Understand Plant Biodiversity
edited by , and Wajid Zaman
submission deadline 30 Sep 2026 | 3 articles | Viewed by 8191 | Submission Open
Keywords: spatial phylogenetics; plant biodiversity; phylogenetic diversity; endemism; taxonomic diversity; functional diversity; biogeography; conservation
(This special issue belongs to the Section Plant Diversity)
Biodiversity and Ecosystem Conservation of Coastal Wetlands
edited by , Hao Cheng, Kit Yue Kwan and
submission deadline 30 Sep 2026 | 7 articles | Viewed by 7872 | Submission Open
Keywords: mangrove; seagrass; salt marshes; climate change; anthropogenic activities
(This special issue belongs to the Section Biodiversity Conservation)
Responses and Adaptations of Marine Species to Global Change submission deadline 30 Sep 2026 | 2 articles | Viewed by 4576 | Submission Open
Keywords: global change; climate change; anthropocene; marine species adaptations; pollution
(This special issue belongs to the Section Marine Diversity)
Biogeography, Ecology and Conservation of Reptiles—Second Edition
edited by and Julio A. Lemos-Espinal
submission deadline 30 Sep 2026 | 2 articles | Viewed by 3159 | Submission Open
Keywords: reptiles; ecology; evolution; conservation
Biogeography and Diversity of Butterflies and Moths—2nd Edition
edited by and
submission deadline 30 Sep 2026 | 1 articles | Viewed by 3089 | Submission Open
Keywords: Lepidoptera; species richness; phylogeography; diversity conservation; spatial distribution; pollinating networks
Wetland Ecosystems: Diversity, Threats, Resilience and Adaptation in the Context of Increased Climate Change
edited by
submission deadline 30 Sep 2026 | 2 articles | Viewed by 2924 | Submission Open
Keywords: wetland ecosystems; flora; fauna; waterbirds; ecology; diversity; threats; climate change; conservation management; resilience; adaptation
(This special issue belongs to the Section Biogeography and Macroecology)
Fungal Diversity—2nd Edition submission deadline 30 Sep 2026 | 3 articles | Viewed by 2591 | Submission Open
Keywords: applications of fungi; Ascomycota; Basidiomycota; biocontrol agents; biodegradation; biodegradation; biotechnology; fungal ecology; fungal pathogens; fungal phylogeny; fungal taxonomy; fungal toxins; next-generation sequencing; secondary metabolites
(This special issue belongs to the Section Microbial Diversity and Culture Collections)
Perspectives on Small Game Research for Biodiversity Conservation and Sustainable Resource Management submission deadline 30 Sep 2026 | 2 articles | Viewed by 2489 | Submission Open
Keywords: small game management; biodiversity conservation; sustainable resource management; population dynamics; conservation policies
(This special issue belongs to the Section Biodiversity Conservation)
Functional Ecology of Soil and Aquatic Microorganisms
edited by , Lijun Chen and
submission deadline 30 Sep 2026 | 3 articles | Viewed by 2256 | Submission Open
Keywords: functional ecology; soil microorganisms; aquatic microorganisms; microbial diversity; ecosystem functioning; biogeochemical cycles; climate change
(This special issue belongs to the Section Microbial Diversity and Culture Collections)
Women’s Special Issue Series: Diversity—2nd Edition
edited by and
submission deadline 30 Sep 2026 | 1 articles | Viewed by 1842 | Submission Open
Keywords: women in science; biodiversity; sustainability science; conservation biology; ecological systems
Marine Biodiversity and Chemical Ecology: Population Dynamics and Natural Product Chemistry
edited by Dawrin Pech-Puch, Harold Villegas Hernández and
submission deadline 30 Sep 2026 | 1 articles | Viewed by 704 | Submission Open
Keywords: marine biodiversity; marine chemicals; population dynamics
(This special issue belongs to the Section Chemical Diversity and Chemical Ecology)
Hidden Diversity and Evolutionary Histories of Amphipod Crustaceans Across Aquatic and Terrestrial Realms Through Time
edited by and Alan Myers
submission deadline 30 Sep 2026 | 1 articles | Viewed by 688 | Submission Open
Keywords: amphipoda; biodiversity; taxonomy; phylogenetics; ecology
(This special issue belongs to the Section Animal Diversity)
Meiofauna as Bioindicators of Environmental Stress and Ecosystem Health
edited by and Eleonora Grassi
submission deadline 30 Sep 2026 | Viewed by 394 | Submission Open
Keywords: meiofauna; meiobenthos; biological indicator; ecological sentinel; ecosystem resilience; ecosystem health
(This special issue belongs to the Section Biodiversity Loss & Dynamics)
Azores’ Marine Biodiversity and Ecosystem Conservation
edited by and Antônio Batista Anderson
submission deadline 30 Sep 2026 | Viewed by 346 | Submission Open
Keywords: marine biodiversity; ecosystem conservation; Azores Archipelago; North Atlantic; ocean management
(This special issue belongs to the Section Marine Diversity)
Ecology and Genetics of Wild Cats
edited by Puneet Pandey
submission deadline 30 Sep 2026 | Viewed by 317 | Submission Open
Keywords: species distribution; population status; conservation biology; population genetics; human–wildlife conflict
(This special issue belongs to the Section Biodiversity Conservation)
Diversity, Phylogeny and Ecology of Marine Microorganisms
edited by , Lin Xu, Jianyang Li and
submission deadline 1 Oct 2026 | 3 articles | Viewed by 4088 | Submission Open
Keywords: marine ecosystem; microbial diversity and evolution; microbial ecology and environmental adaptation; phylogeny of bacteria and archaea
(This special issue belongs to the Section Microbial Diversity and Culture Collections)
Ecology of Young Animals
edited by Douglas A. Eifler, Maria Eifler and María de L. Ruiz-Gomez
submission deadline 1 Oct 2026 | Viewed by 387 | Submission Open
Keywords: juvenile; young stage; body size; ontogeny; hatchling; age; scaling; precocial; altricial; quantitative ecology; immature; larva
(This special issue belongs to the Section Animal Diversity)
Helminth Parasites of Wild Vertebrates submission deadline 20 Oct 2026 | Viewed by 306 | Submission Open
Keywords: systematics; helminth; wild vertebrate hosts; ecology; conservation; evolutionary relationships
(This special issue belongs to the Section Animal Diversity)
Phytoplankton Under Multiple Stressors: Functional and Community Responses
edited by and
submission deadline 20 Oct 2026 | Viewed by 295 | Submission Open
Keywords: multiple stressor; microalgae; functional traits; community structure; global change
(This special issue belongs to the Section Biodiversity Loss & Dynamics)
Feature Papers in Phylogeny and Evolution (2026–2027)
edited by and Stenio Italo Araujo Foerster
submission deadline 22 Oct 2026 | Viewed by 422 | Submission Open
Keywords: phylogeny; evolution; biodiversity; comparative approaches; integrative studies
(This special issue belongs to the Section Phylogeny and Evolution)
Freshwater Fish Diversity, Conservation and Ecology
edited by and
submission deadline 24 Oct 2026 | 1 articles | Viewed by 567 | Submission Open
Keywords: fish ecology; conservation biology; population genetics; biodiversity; invasive species; environmental change
(This special issue belongs to the Section Freshwater Biodiversity)
The Ecological, Evolutionary and Biogeographical Histories That Genetic and Phylogenetic Studies of Cacti Reveal
edited by and Sandra Luz Gomez-Acevedo
submission deadline 30 Oct 2026 | 3 articles | Viewed by 3798 | Submission Open
Keywords: cactus; arid ecosystems; phylogenomics; comparative genomics; plant–insect interactions; ecology of cactus; conservation of cactus; gene expression; cactus flowers; chromosomal evolution
(This special issue belongs to the Section Plant Diversity)
Ethnobotany, Medicinal Plants and Biodiversity Conservation: 2nd Edition submission deadline 31 Oct 2026 | 13 articles | Viewed by 51594 | Submission Open
Keywords: ethnobotany and ethnopharmacology; pharmacological tests based on traditional knowledge phytochemistry; resources and conservation of medicinal plants; sustainable use of medicinal plants; cultivation and biotechnology; ethnobotany and biopesticides
(This special issue belongs to the Section Plant Diversity)
Recent Advances in the Impacts of Biological Invasions on European Biodiversity submission deadline 31 Oct 2026 | 13 articles | Viewed by 40006 | Submission Open
Keywords:  alien species;  native biodiversity;  impacts;  ecosystem services;  management;  risk assessment;  habitat restoration;  citizen science;  environmental DNA;  rewilding;  ecosystem vulnerability;  invasiveness;  vectors of introduction;  toxic chemicals
(This special issue belongs to the Section Biodiversity Conservation)
Applications of Environmental DNA in Biomonitoring Across Multiple Trophic Levels
edited by , Dang'En Gu, Yangchun Gao and
submission deadline 31 Oct 2026 | 4 articles | Viewed by 9107 | Submission Open
Keywords: environmental DNA (eDNA); biomonitoring; multitrophic interactions; biodiversity assessment; conservation strategies
Microbial Diversity in Different Environments
edited by
submission deadline 31 Oct 2026 | 5 articles | Viewed by 7257 | Submission Open
Keywords: MIcrobial; forest; soil; wetland; diversity
Undersea Refuges: Functional Ecology and Biodiversity of Coral Reef Ecosystems submission deadline 31 Oct 2026 | 4 articles | Viewed by 6201 | Submission Open
Keywords: coral; biodiversity; ecology
(This special issue belongs to the Section Marine Diversity)
Reptilian Response to Major Environmental Transitions: From Deep Time to the Anthropocene submission deadline 31 Oct 2026 | 1 articles | Viewed by 5374 | Submission Open
Keywords: reptile evolution; environmental transitions; mass extinction; Anthropocene; conservation paleobiology
(This special issue belongs to the Section Phylogeny and Evolution)
Mediterranean Biodiversity Hotspots: Patterns, Trends, and Conservation Challenges submission deadline 31 Oct 2026 | 2 articles | Viewed by 4317 | Submission Open
Keywords: marine mediterranean biodiversity; conservation and restoration; marine protected areas (MPAs); endemic species; anthropogenic impacts
(This special issue belongs to the Section Marine Diversity)
Population Genetics of Animals and Plants—2nd Edition
edited by
submission deadline 31 Oct 2026 | 3 articles | Viewed by 4107 | Submission Open
Keywords: genetic variability; genetic structure; conservation; fragmentation; hybridization; phylogeography; migration; population demography; invasive species; exploited populations
Invasive Species in Freshwater Ecosystems in the Americas
edited by and S.S.S. Sarma
submission deadline 31 Oct 2026 | 1 articles | Viewed by 4056 | Submission Open
Keywords: freshwater invasive species; aquatic biodiversity in the Americas; invasion ecology; biosecurity management; socio-ecological impacts
(This special issue belongs to the Section Freshwater Biodiversity)
Diversity and Morphology of Beetles: Advances, Challenges and Perspectives submission deadline 31 Oct 2026 | 2 articles | Viewed by 3654 | Submission Open
Keywords: Coleopterans; Adephaga; Polyphaga; epigean and endogean fauna; troglobites; biodiversity; morphology; endemism
Harmful Algal Blooms: Distribution and Diversity
edited by Lixia Shang
submission deadline 31 Oct 2026 | 2 articles | Viewed by 3407 | Submission Open
Keywords: harmful algal blooms (HABs); spatial distribution; omics; algal diversity
Marine Species Chemical Ecology
edited by , and Viviana Pasquini
submission deadline 31 Oct 2026 | 1 articles | Viewed by 2101 | Submission Open
Keywords: ecological aspects; habitat selection; aquaculture; olfaction; taste; food choice; invasive alien species; population control strategies; mesocosm experiments
(This special issue belongs to the Section Marine Diversity)
How Microbiomes Sustain Ecosystem Function and Health
edited by
submission deadline 31 Oct 2026 | 1 articles | Viewed by 1026 | Submission Open
Keywords: microbial metabolism; microbial ecosystems; functional diversity of microorganisms; ecosystem functions; symbiosis; climate change; bioindicator microorganisms; microbial adaptation; microbiomes
(This special issue belongs to the Section Microbial Diversity and Culture Collections)
Innovating and Integrating Conservation Tools to Address the Global Extinction Crisis and Prevent Ecosystem Collapse
edited by Dave Waldien, , Monika Böhm and Andrew Snyder
submission deadline 31 Oct 2026 | Viewed by 700 | Submission Open
Keywords: global extinction; biodiversity; ecosystems; IUCN
(This special issue belongs to the Section Biodiversity Conservation)
Coral Reef Ecology and Diversity Conservation submission deadline 31 Oct 2026 | Viewed by 511 | Submission Open
Keywords: coral reefs; mesophotic coral ecosystems; climate change; policy and management; cryptic biodiversity; unique habitats; taxonomic impediments; ecosystem services; natural infrastructure
(This special issue belongs to the Section Biodiversity Conservation)
Evolution, Development, and Diversification of Vertebrates, Part 2: Patterning and Mechanisms of Morphogenesis
edited by
submission deadline 31 Oct 2026 | Viewed by 443 | Submission Open
Keywords: vertebrates; morphological disparity; EvoDevo; phylogeny; patterning; neural crest; differentiation; embryo; placodes; skeleton; sensory systems; organogenesis; integration
(This special issue belongs to the Section Phylogeny and Evolution)
Emerging Contaminants as Vectors of Global Change: Ecotoxicology, Bioaccumulation and Risk
edited by Damià Barceló and
submission deadline 31 Oct 2026 | Viewed by 385 | Submission Open
Keywords: bioaccumulation; ecotoxicology; emerging contaminants; environmental risk assessment; global change drivers; mixture toxicity; trophic transfer
(This special issue belongs to the Section Biodiversity Conservation)
Restoration Ecology and Function of Plants in Wetlands
edited by , Bo Guan, Fangli Luo, and
submission deadline 31 Oct 2026 | Viewed by 352 | Submission Open
Keywords: restoration ecology; genetic and phylogenetic variation; functional traits and physiology; plant–soil–microbe interactions; biogeochemical cycle
(This special issue belongs to the Section Plant Diversity)
Systematics, Phylogenetics and Phylogeography of Animals in the Mediterranean Region—2nd Edition
edited by Nikos Poulakakis
submission deadline 31 Oct 2026 | Viewed by 352 | Submission Open
Keywords: biodiversity; biogeography; ecology; Mediterranean; phylogenetics; phylogenomics; phylogeography; speciation; systematics; conservation
(This special issue belongs to the Section Animal Diversity)
DNA Metabarcoding for Marine Invertebrate Surveillance submission deadline 31 Oct 2026 | Viewed by 324 | Submission Open
Keywords: DNA metabarcoding; marine Invertebrate; biomonitoring; marine ecosystems
(This special issue belongs to the Section Marine Diversity)
Fish Diversity and Biogeography in Freshwater Ecosystem
edited by Tomas Chalde and Juan Pablo Barriga
submission deadline 31 Oct 2026 | Viewed by 290 | Submission Open
Keywords: fish; freshwater ecosystems; biogeography; diversity
(This special issue belongs to the Section Freshwater Biodiversity)
Applications and Challenges of Evolutionary Methods in Vertebrate Phylogenetics and Genomics
edited by
submission deadline 31 Oct 2026 | Viewed by 236 | Submission Open
Keywords: phylogenetic methods; vertebrate phylogeny; molecular clock; genome evolution
(This special issue belongs to the Section Phylogeny and Evolution)
Functional Diversity of Soft-Bottom Benthic Communities in the Anthropocene—2nd Edition
edited by Américo Montiel
submission deadline 31 Oct 2026 | Viewed by 208 | Submission Open
Keywords: infauna; deposit-feeders; filter-feeders; trophic guild; trophic source; carbon sinks; macrofauna; meiofauna; global change; deep-sea; intertidal; acidification
(This special issue belongs to the Section Marine Diversity)
Diversity and Ecology of Termites—Second Edition
edited by and Ana Maria Costa Leonardo
submission deadline 15 Nov 2026 | 1 articles | Viewed by 1733 | Submission Open
Keywords: diversity; niche and ecological functions; evolution of eusociality; caste development; molecular phylogenetic studies; microbe interactions in termites of different feeding guilds; population dynamics; habitat degradation; interaction with termitophiles and inquilines; impacts of termite activity on soil formation and properties; effect of climate change on termites
(This special issue belongs to the Section Animal Diversity)
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