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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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Mycorrhizal Fungi Biodiversity and Ecology

edited by

Marcela Pagano

submission deadline 30 Nov 2025 | Viewed by 443 | 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)

Role of Seamounts as a Reservoir for Vulnerable Species: Population Structure and Colonisation Capacity

edited by Joan Enric Cartes

submission deadline 30 Nov 2025 | Viewed by 121 | Submission Open

Keywords: seamounts; populations; diversification; reservoir; recruitment; feeding; reproduction; dispersal; colonisation

(This special issue belongs to the Section Marine Diversity)

Ecology, Evolution and Conservation of Marsupials

edited by

David B. Croft

submission deadline 1 Dec 2025 | 1 articles | Viewed by 615 | Submission Open

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

(This special issue belongs to the Section Animal Diversity)

Forest Management and Biodiversity Conservation—2nd Edition

edited by Lucian Constantin Dincǎ

submission deadline 15 Dec 2025 | Viewed by 96 | Submission Open

Keywords: forest management; functional diversity; ecology and regional biological diversity; ecosystem services; economic evaluation; biodiversity conservation

(This special issue belongs to the Section Plant Diversity)

Fungal Diversity

edited by

Samantha C. Karunarathna

, Benjarong Karbowy-Thongbai,

Saowaluck Tibpromma

, Asha Janadaree Dissanayake and

Arun Kumar Dutta

submission deadline 20 Dec 2025 | 4 articles | Viewed by 5153 | Submission Open

Keywords: applications of fungi; ascomycota; basidiomycota; biodegradation; biocontrol agents; biotechnology; fungal taxonomy; fungal phylogeny; next-generation sequencing; fungal toxins; fungal pathogens; fungal ecology

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

Functional Diversity of Soft-Bottom Benthic Communities in the Anthropocene

edited by Américo Montiel

submission deadline 20 Dec 2025 | 2 articles | Viewed by 4658 | 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)

Systematics, Phylogenetics, and Phylogeography of Animals in the Mediterranean Region

edited by Nikos Poulakakis

submission deadline 20 Dec 2025 | 2 articles | Viewed by 4081 | Submission Open

Keywords: biodiversity; biogeography; ecology; mediterranean; phylogenetics; phylogenomics; phylogeography; speciation; systematics

(This special issue belongs to the Section Animal Diversity)

Animal Diversity Hot Topics in 2025

edited by

Luc Legal

submission deadline 30 Dec 2025 | 2 articles | Viewed by 3328 | Submission Open

Keywords: hot topics; animal diversity; animal ecology; animal conservation; population genetics

Diversity and Ecology of Freshwater Benthic Macroinvertebrates

edited by Diego Marcel Parreira De Castro

submission deadline 30 Dec 2025 | Viewed by 109 | Submission Open

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

Women’s Special Issue Series: Diversity

edited by

Ipek Kurtboke

Haiyan Tong

and

Martha F Hoopes

submission deadline 31 Dec 2025 | 9 articles | Viewed by 24162 | Submission Open

Keywords: biodiversity; ecology; natural history; evolution; palaeontology; systematics; population genetics; phylogeny; biogeography; conservation

15th Anniversary of Diversity—Biodiversity, Conservation and Ecology of Animals, Plants and Microorganisms

edited by

and

submission deadline 31 Dec 2025 | 20 articles | Viewed by 13753 | Submission Open

Keywords: plant diversity; plant species; animal biodiversity and conservation; evaluation and population

Ecology and Paleoecology of Atlantic and Caribbean Coral Reefs

edited by

Pamela Hallock

submission deadline 31 Dec 2025 | 5 articles | Viewed by 7449 | Submission Open

Keywords: biodiversity; biogeography; coral-reef ecosystem; reef-species distributions; reef community structure; resilient species; endemic species; vulnerable species; climate change; Neogene reefs; Miocene reefs; Pliocene reefs; Pleistocene reefs; climate change to reef ecosystem services

(This special issue belongs to the Section Marine Diversity)

Biodiversity Conservation in Urbanized Ecosystems

edited by Gad Perry and Robert Cox

submission deadline 31 Dec 2025 | 4 articles | Viewed by 6047 | Submission Open

Keywords: urban ecosystem regeneration; biodiversity conservation; urban green spaces; urbanization; climate change

(This special issue belongs to the Section Biodiversity Conservation)

Studies on Biodiversity and Ecology of Algae in China—2nd Edition

edited by

Renhui Li

Jia Feng

and

Wei Zhang

submission deadline 31 Dec 2025 | 5 articles | Viewed by 4454 | Submission Open

Keywords: algae; biodiversity; ecology

Microbial Community Dynamics in Soil Ecosystems

edited by Jiao Feng

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3972 | 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)

Diversity in 2025

edited by

Michael Wink

submission deadline 31 Dec 2025 | 4 articles | Viewed by 3793 | Submission Open

Keywords: biodiversity; animal conservation; evolution and ecology; marine species; plant invasive species

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

edited by

Salima Machkour-M’Rabet

and

Yann Hénaut

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2542 | 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)

Diversity, Biodiversity, Threats and Conservation of Arthropods

edited by Jaime Pizarro-Araya

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2130 | Submission Open

Keywords: biodiversity; arthropod conservation; environmental threats; climate change; habitat loss; ecosystem services; habitat restoration

(This special issue belongs to the Section Animal Diversity)

Genetic Diversity and Evolutionary Potential: Impacts of Habitat Fragmentation

edited by Mary M. Peacock

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2001 | 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)

The Impact of Ecocide on Diversity

edited by

Ipek Kurtboke

submission deadline 31 Dec 2025 | 3 articles | Viewed by 1887 | Submission Open

Keywords: ecocide; biodiversity; genetic diversity; species diversity; ecosystem diversity; environmental conservation

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

Taxonomy, Phylogeny and Biogeography of Cnidaria

edited by Carlos Daniel Pérez, Paula Braga Gomes and

Fabian Horacio Acuña

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1705 | Submission Open

Keywords: systematic; distribution; Anthozoa; Medusozoa; cnidarians

Diversity, Evolution, and Systematics of Chelicerates

edited by

Salima Machkour-M’Rabet

and

Yann Hénaut

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1307 | Submission Open

Keywords: systematic; genetic and genomic; evolution; interaction; predation; climate change; conservation; ecology

(This special issue belongs to the Section Animal Diversity)

Amphibian and Reptile Adaptation: Biodiversity and Monitoring

edited by Simeon P. Lukanov and

Georgi Popgeorgiev

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1077 | Submission Open

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

(This special issue belongs to the Section Animal Diversity)

Evolutionary History of Fishes

edited by

Charles Ciampaglio

and

Ryan C. Shell

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1041 | Submission Open

Keywords: evolutionary history; fishes; paleo-ecology; diversity; relationships; evolution

(This special issue belongs to the Section Animal Diversity)

Microbiota Diversity in Plants and Forest—2nd Edition

edited by

Yaara Oppenheimer-Shaanan

submission deadline 31 Dec 2025 | 1 articles | Viewed by 708 | Submission Open

Keywords: forest microbiome; plant microbiome; habitat; ecosystem dynamics; decomposition; microbial plant interactions; microbiome diversity

(This special issue belongs to the Section Plant Diversity)

Ecology and Biogeography of Marine Benthos—2nd Edition

edited by

Renato Mamede

submission deadline 31 Dec 2025 | 1 articles | Viewed by 651 | 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)

Marine Biodiversity: Patterns and Processes

edited by

Bert W. Hoeksema

and

Kaveh Samimi-Namin

submission deadline 31 Dec 2025 | Viewed by 632 | Submission Open

Keywords: marine biogeography; marine distribution ranges; global marine biodiversity; onshore– offshore distributions; biodiversity centers; latitudinal diversity gradients; marine currents; substrate availability; climate change; marine speciation; marine extinction; paleogeography

(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 Dec 2025 | 1 articles | Viewed by 598 | 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)

Cephalopod Resilience in Changing Marine Ecosystems

edited by

Xiaodong Zheng

and Ran Xu

submission deadline 31 Dec 2025 | 1 articles | Viewed by 387 | Submission Open

Keywords: cephalopod diversity; marine ecosystems; climate change impacts; trophic interactions; species distribution shifts; evolutionary adaptations

(This special issue belongs to the Section Marine Diversity)

Diversity and Ecology of Algae in a Changing World

edited by

Luz Elena Mateo-Cid

submission deadline 31 Dec 2025 | Viewed by 371 | Submission Open

Keywords: seaweed; biodiversity; environment

(This special issue belongs to the Section Marine Diversity)

2025 Feature Papers by Diversity’s Editorial Board Members

edited by

Michael Wink

submission deadline 31 Dec 2025 | 1 articles | Viewed by 369 | Submission Open

Keywords: biodiversity conservation; plant diversity; animal population and involution; ecology

Population Genetics of Animals and Plants—2nd Edition

edited by

Petras Prakas

submission deadline 31 Dec 2025 | Viewed by 276 | Submission Open

Keywords: genetic variability; genetic structure; conservation; fragmentation; hybridization; phylogeography; migration; population demography; invasive species; exploited populations

Freshwater Biodiversity Hotspots in 2025

edited by

Simon Blanchet

submission deadline 31 Dec 2025 | Viewed by 246 | Submission Open

Keywords: freshwater biodiversity; biodiversity hotspots; conservation strategies; climate change impacts; ecosystem resilience; species richness; genetic diversity; phylogenetic diversity; functional diversity

(This special issue belongs to the Section Freshwater Biodiversity)

Biodiversity Conservation Planning and Assessment—2nd Edition

edited by Yu Peng

submission deadline 31 Dec 2025 | Viewed by 213 | Submission Open

Keywords: plant richness; plant diversity; biodiversity planning; biodiversity assessment; biodiversity conservation; plant diversity and biodiversity

Biodiversity in the Context of Island Biogeography

edited by Konstantinos Proios and

Maria Lazarina

submission deadline 31 Dec 2025 | Viewed by 201 | Submission Open

Keywords: island biogeography; biodiversity; species richness; community assembly; dispersal; in situ speciation; species– area relationship; human impact; habitat island; conservation

(This special issue belongs to the Section Biodiversity Conservation)

Ecology and Conservation of Endangered Wildlife

edited by

Feng Xu

and

Jun Li

submission deadline 31 Dec 2025 | Viewed by 150 | Submission Open

Keywords: endangered species; biodiversity; habitat conservation; population dynamics; climate change; human– wildlife conflict; conservation technology; ecosystem stability

Avian Genetic Diversity

edited by

Giovanni Forcina

and

Tamer Albayrak

submission deadline 31 Dec 2025 | Viewed by 148 | Submission Open

Keywords: adaptive radiation; bird; divergence; extinction; hybridisation; introgression; museomics; phylogeography; phylogeny; speciation; wildlife forensics

(This special issue belongs to the Section Animal Diversity)

Applications of Environmental DNA in Biomonitoring Across Multiple Trophic Levels

edited by

Lei Zhou

, Dang'En Gu, Yangchun Gao and

Junjie Wang

submission deadline 31 Dec 2025 | Viewed by 142 | Submission Open

Keywords: environmental DNA (eDNA); biomonitoring; multitrophic interactions; biodiversity assessment; conservation strategies

Marine Species and Microbial Biodiversity in a Changing Ocean: Adaptation, Symbiosis and Ecosystem Function

edited by Federica Montesanto

submission deadline 31 Dec 2025 | Viewed by 110 | Submission Open

Keywords: marine biodiversity; microbial diversity; symbiosis; adaptation; climate change; host– microbiome interactions; benthic communities; barcoding; metabarcoding; marine ecosystem resilience; species– microbiome dynamics; ocean acidification; environmental stressors

Bird Parasites—3rd Edition

edited by

Gary Voelker

submission deadline 31 Dec 2025 | Viewed by 107 | 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)

Ecology and Conservation of Freshwater Bivalves

edited by

Xiubao Chen

, Haibo Wen and

Xiaochen Huang

submission deadline 31 Dec 2025 | Viewed by 95 | Submission Open

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

(This special issue belongs to the Section Freshwater Biodiversity)

Ecological Aquaculture: Mechanisms, Modeling, and Sustainability in a Changing Environment

edited by

Bin Wen

Jiamin Sun

and

Yunfei Sun

submission deadline 31 Dec 2025 | Viewed by 89 | Submission Open

Keywords: ecological aquaculture; fish adaptation; nutrient cycling; aquaculture systems; sustainability

(This special issue belongs to the Section Marine Diversity)

Climate Change Impacts and Resilience in Pacific Island Marine Ecosystems

edited by

Stuart Kininmonth

submission deadline 31 Dec 2025 | Viewed by 82 | Submission Open

Keywords: network modeling; marine ecosystems; Bayesian networks; socioecological systems; coral reefs

(This special issue belongs to the Section Marine Diversity)

Chemical Diversity of Plant Bioactives: Ecological Functions, Organismal Interactions, and Environmental Adaptations

edited by

Jesus Fernando Ayala-Zavala

submission deadline 31 Dec 2025 | Viewed by 81 | Submission Open

Keywords: plant bioactive compounds; chemical diversity; ecological interactions; evolutionary adaptations; data-driven bioactivity prediction

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

edited by

Emilio Jorge Tizado Morales

submission deadline 31 Dec 2025 | Viewed by 79 | Submission Open

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

(This special issue belongs to the Section Biodiversity Conservation)

Morphometric and Genetic Approaches to the Study of Fossil Mammals

edited by

Leonid Recovets

submission deadline 31 Dec 2025 | Viewed by 64 | Submission Open

Keywords: fossil mammals; morphometrics; ancient DNA; phylogenetic reconstruction; evolutionary dynamics; paleoecology

(This special issue belongs to the Section Animal Diversity)

Alien Species Management: From Scientific Discovery to Policy Implementation

edited by

Andrea Bonifazi

submission deadline 31 Dec 2025 | Viewed by 60 | Submission Open

Keywords: nis; alien species; invasive species; policy implementation

(This special issue belongs to the Section Marine Diversity)

Ecological Dynamics and Conservation of Marine Fisheries

edited by Ernesto A. Chavez Ortiz

submission deadline 31 Dec 2025 | Viewed by 37 | Submission Open

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

(This special issue belongs to the Section Marine Diversity)

The Ecological, Evolutionary and Biogeographical Histories That Genetic and Phylogenetic Studies of Cacti Reveal

edited by

Sofia Solórzano

and Sandra Luz Gomez-Acevedo

submission deadline 31 Dec 2025 | Viewed by 35 | 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)

Patterns Of Marine Benthic Biodiversity

edited by