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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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Herbaria: A Key Resource for Plant Diversity Exploration—2nd Edition

edited by

Adriano Stinca

submission deadline 31 Jul 2026 | 1 articles | Viewed by 1020 | Submission Open

Keywords: algae; ancient DNA; biological collections; bryophytes; digitization; exsiccata; fungi; herbaria; historical collections; lichens; metadata; museological importance; taxonomy; type; vascular plants

(This special issue belongs to the Section Plant Diversity)

Forging Pluralistic Praxis: Braiding Indigenous and Local Knowledge with Conservation Practice

edited by

Ronald Maliao

and

Béla Tóthmérész

submission deadline 31 Jul 2026 | Viewed by 754 | Submission Open

Keywords: indigenous and local knowledge; ethnoecology; citizen science; pluralistic praxis; epistemic justice

(This special issue belongs to the Section Biodiversity Conservation)

Innovating and Integrating Conservation Tools to Address the Global Extinction Crisis and Prevent Ecosystem Collapse

edited by Dave Waldien,

Dominick A. DellaSala

, Monika Böhm and Andrew Snyder

submission deadline 31 Jul 2026 | Viewed by 489 | Submission Open

Keywords: global extinction; biodiversity; ecosystems; IUCN

(This special issue belongs to the Section Biodiversity Conservation)

Impacts of Human Disturbance on Plant–Insect Interactions

edited by Walter Santos De Araújo

submission deadline 31 Jul 2026 | 1 articles | Viewed by 356 | Submission Open

Keywords: plant– insect interactions; ecosystems; anthropogenic pressures; biodiversity conservation

(This special issue belongs to the Section Plant Diversity)

Diversity, Ecology and Spatiotemporal Distribution of Marine Algae and Their Associated Microbiome

edited by Ruoyu Guo and

Zhun Li

submission deadline 31 Jul 2026 | Viewed by 327 | Submission Open

Keywords: microalgae; microalgae-associated microbiomes; diversity; spatiotemporal distribution dynamics; community responses

Assessing Avian Biodiversity Loss Under Climate Change: A Comparative Analysis of Diversity Indices

edited by

Miguel Ferrer

and

Jorge García-Macía

submission deadline 31 Jul 2026 | Viewed by 276 | Submission Open

Keywords: diversity index of birds; climate change; variation in distribution areas; variation in productivity; changes in migration of birds; changes in distribution areas

(This special issue belongs to the Section Biodiversity Loss & Dynamics)

Advances in Diversity, Evolutionary History and Ecology of Global Flatworms

edited by Francisco Brusa

submission deadline 31 Jul 2026 | Viewed by 267 | Submission Open

Keywords: platyhelminthes; flatworm diversity; rhabditophora; catenulida; neodermata; parasitism; taxonomy; phylogenomics

(This special issue belongs to the Section Phylogeny and Evolution)

Genetic Diversity of Natural Animal Populations: The Influence of Anthropogenic Factors

edited by Nataļja Škute and

Algimantas Paulauskas

submission deadline 31 Jul 2026 | Viewed by 220 | Submission Open

Keywords: population genetics; conservation genetics; ecological genetics; adaptations; anthropogenic factors

(This special issue belongs to the Section Phylogeny and Evolution)

Epibiotic Interactions in Marine Organisms

edited by Paula Braga Gomes and

Carlos Perez

submission deadline 31 Jul 2026 | Viewed by 200 | Submission Open

Keywords: epibiosis; epifaunal communities; habitat-forming species; benthic ecosystem engineers

(This special issue belongs to the Section Marine Diversity)

Community Assembly, Succession, Functional Diversity, and Evolution of Aquatic Invertebrate Microbiomes

edited by Kent A. Hatch, Nathaniel Curtis and José Moscoso Nunez

submission deadline 1 Aug 2026 | Viewed by 189 | Submission Open

Keywords: aquatic invertebrates; microbiome assembly; environmental filtering; host– microbe interactions; coevolution

(This special issue belongs to the Section Microbial Diversity and Culture Collections)

Genetic Diversity, Ecology and Conservation of Endangered Species—2nd Edition

edited by

Salima Machkour-M’Rabet

and

Yann Hénaut

submission deadline 31 Aug 2026 | 5 articles | Viewed by 10138 | Submission Open

Keywords: genetic conservation; conservation of biodiversity; conservation and management strategies; population ecology; threatened species; evolution

(This special issue belongs to the Section Biodiversity Conservation)

Microbial Community Dynamics in Soil Ecosystems

edited by Jiao Feng

submission deadline 31 Aug 2026 | 4 articles | Viewed by 8446 | Submission Open

Keywords: diverse microorganisms; soil ecosystems; soil microorganisms; microbial biogeography; soil biogeochemical cycles

(This special issue belongs to the Section Microbial Diversity and Culture Collections)

Amphibian and Reptile Adaptation: Biodiversity and Monitoring

edited by Simeon P. Lukanov and

Georgi Popgeorgiev

submission deadline 31 Aug 2026 | 6 articles | Viewed by 8076 | Submission Open

Keywords: climate change; conservation; disease; ecological factors; environment; habitat loss; population dynamics; pollution

(This special issue belongs to the Section Animal Diversity)

Ecology and Biogeography of Marine Benthos—2nd Edition

edited by

Renato Mamede

submission deadline 31 Aug 2026 | 5 articles | Viewed by 6710 | Submission Open

Keywords: marine taxa; benthic communities; benthic habitats; benthic ecology; conservation and management of ecosystems; biodiversity; species distribution modeling; habitat mapping; trophic interactions; effects of anthropogenic pressures; effects of climatic change; invasive species

(This special issue belongs to the Section Marine Diversity)

Phytoplankton Communities and Their Microbial Associates Under Climate Change and Anthropogenic Pressures

edited by

Zhangxi Hu

and

Yunyan Deng

submission deadline 31 Aug 2026 | 5 articles | Viewed by 5220 | Submission Open

Keywords: marine phytoplankton; harmful algal blooms (HABs); microbiome interactions; ecosystem resilience; metabarcoding; anthropogenic pressures; climate change

(This special issue belongs to the Section Marine Diversity)

Distribution, Biodiversity, and Ecology of Nematodes

edited by Elisa Baldrighi and Eleonora Grassi

submission deadline 31 Aug 2026 | 4 articles | Viewed by 5074 | Submission Open

Keywords: nematode diversity and distribution; ecosystem services; model organisms; environmental assessment; nematode ecology; soil and aquatic nematodes; adaptive strategies; anthropogenic impact; taxonomy and phylogeny; free living and parasite nematodes

Ecology and Conservation of Freshwater Bivalves

edited by

Xiubao Chen

, Haibo Wen and

Xiaochen Huang

submission deadline 31 Aug 2026 | 5 articles | Viewed by 5063 | Submission Open

Keywords: freshwater bivalves; biodiversity; ecology; evolution; taxonomy; threats; ecotoxicology; conservation

(This special issue belongs to the Section Freshwater Biodiversity)

Climate Change and Invasive Species Impacts on Freshwater Systems

edited by Timothy B. Mihuc

submission deadline 31 Aug 2026 | 3 articles | Viewed by 3057 | Submission Open

Keywords: freshwater systems; climate change; invasive species

(This special issue belongs to the Section Freshwater Biodiversity)

Bird Parasites—3rd Edition

edited by

Gary Voelker

submission deadline 31 Aug 2026 | 2 articles | Viewed by 2979 | Submission Open

Keywords: avian parasites; taxonomic diversity and host associations; host– parasite interactions; ecological assessment and modeling; biogeographical distribution; climate change effects

(This special issue belongs to the Section Animal Diversity)

Mycorrhizal Fungi Biodiversity and Ecology

edited by

Marcela Pagano

submission deadline 31 Aug 2026 | 1 articles | Viewed by 2952 | Submission Open

Keywords: mycorrhizal fungi; soil biodiversity; ecosystem services; ectomycorrhizal fungi; symbiotic interaction; multitrophic interactions

(This special issue belongs to the Section Microbial Diversity and Culture Collections)

Ecology, Distribution, and Conservation of Endangered Birds

edited by Xiaoping Yu

submission deadline 31 Aug 2026 | 1 articles | Viewed by 2451 | Submission Open

Keywords: breeding ecology; reintroduction; climate changes; biodiversity; habitat selection; conservation; species distribution

Ecological Dynamics and Conservation of Marine Fisheries

edited by Ernesto A. Chavez-Ortiz

submission deadline 31 Aug 2026 | 1 articles | Viewed by 1323 | Submission Open

Keywords: stock assessment; fisheries simulation; biodiversity; harvesting strategies; potential biomass; potential production

(This special issue belongs to the Section Marine Diversity)

Diversity and Ecology of Freshwater Benthic Macroinvertebrates

edited by Diego Marcel Parreira De Castro

submission deadline 31 Aug 2026 | Viewed by 475 | Submission Open

Keywords: benthic macroinvertebrates; functional diversity; stable isotopes; freshwater conservation

Conservation and Ecology of Raptors—3rd Edition

edited by

Vladimir D. Dobrev

Dobromir D. Dobrev

and

Dimitar A. Demerdzhiev

submission deadline 31 Aug 2026 | Viewed by 400 | Submission Open

Keywords: raptor ecology; migration ecology; demography; population dynamics; habitat; threats and conservation management; diet; home range

(This special issue belongs to the Section Animal Diversity)

Plant Signals Driving Resilience Against Abiotic and Biotic Stresses

edited by

Rosa Rao

and Valeria Castaldi

submission deadline 31 Aug 2026 | Viewed by 397 | Submission Open

Keywords: plant immunity; stress signaling; plant defense; environmental stress; drought; salinity; heat/cold; nutrient deficiency; oxidative stress; transcriptomics/proteomics; metabolomics; pathogens (fungi; bacteria; viruses); insect herbivores; ecological impact of stress resilience

(This special issue belongs to the Section Plant Diversity)

Diversity, Conservation, and Community Structure of Terrestrial Ground Animals

edited by

Luca Luiselli

submission deadline 31 Aug 2026 | Viewed by 327 | Submission Open

Keywords: ecological adaptations; biodiversity; community structure; conservation strategies; habitat degradation

(This special issue belongs to the Section Animal Diversity)

Aquatic Insect Biodiversity and Ecosystem Dynamics in Disturbed Rivers

edited by Carlos Frankl Sperber,

Ming Bai

and Ana Viana

submission deadline 31 Aug 2026 | Viewed by 320 | Submission Open

Keywords: disturbance ecology; river restoration; freshwater ecology; aquatic biogeography; bioindicators

(This special issue belongs to the Section Freshwater Biodiversity)

Species Diversity and Conservation Ecology of Amphibians and Reptiles

edited by

Shengchao Shi

and

Xiaoyang Mo

submission deadline 31 Aug 2026 | Viewed by 300 | Submission Open

Keywords: species diversity; integrative taxonomy; distribution and population; diet; breeding ecology

(This special issue belongs to the Section Biodiversity Conservation)

Plant Diversity and Plant-Microbiome Interactions

edited by Liqiang Mu,

Xin Sui

and

Hongfeng Wang

submission deadline 31 Aug 2026 | Viewed by 281 | Submission Open

Keywords: plant diversity; plant– microbiome interactions; soil microbial communities; ecosystem functioning; global change impacts

(This special issue belongs to the Section Plant Diversity)

Multi-Approach Assessment of Environmental Pressures and Changes in Mediterranean Biodiversity

edited by

and

submission deadline 31 Aug 2026 | Viewed by 247 | Submission Open

Keywords: mediterranean biodiversity; environmental pressures; ecosystem monitoring; climate and anthropogenic impacts; conservation and management strategies

(This special issue belongs to the Section Biodiversity Conservation)

Wetland Restoration Ecology: Invasive Species Control and Biodiversity Recovery in Freshwater and Coastal Systems

edited by

Hugo López Rosas

and

Enrique Ávila

submission deadline 31 Aug 2026 | Viewed by 245 | Submission Open

Keywords: wetland restoration; invasive species management; biodiversity recovery; freshwater ecosystems; restoration monitoring

(This special issue belongs to the Section Biodiversity Loss & Dynamics)

Diversity, Distribution, Ecology and Applied Potential of Ascomycetes

edited by

Jinfeng Zhang

and

Yuanpin Xiao

submission deadline 31 Aug 2026 | Viewed by 239 | Submission Open

Keywords: ascomycete; diversity; distribution; ecology; applied potential

(This special issue belongs to the Section Microbial Diversity and Culture Collections)

Conservation and Biodiversity of Freshwater Fishes

edited by Frank Raynner Vasconcelos Ribeiro and

Mark C. Belk

submission deadline 31 Aug 2026 | Viewed by 209 | Submission Open

Keywords: freshwater fish biodiversity; conservation and management; ecology; functional diversity; biogeography; evolution; threats to aquatic ecosystems

(This special issue belongs to the Section Freshwater Biodiversity)

Diversity and Distribution of Decapoda

edited by

Patricio Hernáez

and

William Santana

submission deadline 31 Aug 2026 | Viewed by 177 | Submission Open

Keywords: Decapoda; taxonomy; biogeography; species distribution; biodiversity

Ecology, Evolution and Conservation of Marsupials

edited by

David B. Croft

submission deadline 1 Sep 2026 | 2 articles | Viewed by 3310 | Submission Open

Keywords: marsupials; ecological resilience; climate change; life histories

(This special issue belongs to the Section Animal Diversity)

Marine Zooplankton and Ichthyoplankton Ecology: Patterns, Processes, and Perspective

edited by

Alan Giraldo

, Mauricio F. Landaeta and

Inma Herrera

submission deadline 20 Sep 2026 | 2 articles | Viewed by 3076 | Submission Open

Keywords: zooplankton; ichthyoplankton; marine ecology; biological oceanography; pelagic ecology

Bison and Beyond: Achievements and Problems in Wildlife Conservation

edited by

Wanda Olech

and

Thomas S. Jung

submission deadline 30 Sep 2026 | 18 articles | Viewed by 77051 | Submission Open

Keywords: conservation; reintroducion; genetic diversity; threats for wildlife; human-wildlife relations

(This special issue belongs to the Section Animal Diversity)

Taxonomy, Phylogeny and Biogeography of Cnidaria

edited by

Carlos Perez

, Paula Braga Gomes and

Fabian Horacio Acuña

submission deadline 30 Sep 2026 | 4 articles | Viewed by 8253 | Submission Open

Keywords: systematic; distribution; Anthozoa; Medusozoa; cnidarians

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 8022 | Submission Open

Keywords: foraminiferal studies; environmental monitoring; paleoclimate reconstruction; biogeography

(This special issue belongs to the Section Marine Diversity)

Genetic Diversity and Evolutionary Potential: Impacts of Habitat Fragmentation

edited by Mary M. Peacock

submission deadline 30 Sep 2026 | 2 articles | Viewed by 6669 | 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)

Integrating Spatial Phylogenetic, and Taxonomic Approaches to Understand Plant Biodiversity

edited by

Fazal Ullah

Saddam Saqib

and Wajid Zaman

submission deadline 30 Sep 2026 | 3 articles | Viewed by 5896 | 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)

Ecology, Distribution, Impacts, and Management of Invasive Plants

edited by

Shicai Shen

and

Xiaocheng Zhu

submission deadline 30 Sep 2026 | 5 articles | Viewed by 5394 | 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)

Biodiversity and Ecosystem Conservation of Coastal Wetlands

edited by

Guanglong Qiu

, Hao Cheng, Kit Yue Kwan and

Qinghua Chen

submission deadline 30 Sep 2026 | 3 articles | Viewed by 3461 | Submission Open

Keywords: mangrove; seagrass; salt marshes; climate change; anthropogenic activities

(This special issue belongs to the Section Biodiversity Conservation)

Biogeography and Diversity of Butterflies and Moths—2nd Edition

edited by

Shao-Ji Hu

and

Luc Legal

submission deadline 30 Sep 2026 | 1 articles | Viewed by 2394 | Submission Open

Keywords: Lepidoptera; species richness; phylogeography; diversity conservation; spatial distribution; pollinating networks

Responses and Adaptations of Marine Species to Global Change

edited by

Fernanda Rodríguez-Rojas

and

Gary H. Dickinson

submission deadline 30 Sep 2026 | 2 articles | Viewed by 2119 | Submission Open

Keywords: global change; climate change; anthropocene; marine species adaptations; pollution

(This special issue belongs to the Section Marine Diversity)

Perspectives on Small Game Research for Biodiversity Conservation and Sustainable Resource Management

edited by

Emilio Jorge Tizado Morales

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1260 | Submission Open

Keywords: small game management; biodiversity conservation; sustainable resource management; population dynamics; conservation policies

(This special issue belongs to the Section Biodiversity Conservation)

Biogeography, Ecology and Conservation of Reptiles—Second Edition

edited by

Roger Meek

and Julio A. Lemos-Espinal

submission deadline 30 Sep 2026 | 2 articles | Viewed by 1156 | Submission Open

Keywords: reptiles; ecology; evolution; conservation

Wetland Ecosystems: Diversity, Threats, Resilience and Adaptation in the Context of Increased Climate Change

edited by

Mohamed Dakki

submission deadline 30 Sep 2026 | 1 articles | Viewed by 1151 | 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

edited by

Samantha C. Karunarathna

submission deadline 30 Sep 2026 | 2 articles | Viewed by 1119 | 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)

Women’s Special Issue Series: Diversity—2nd Edition

edited by