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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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Ecology and Conservation of Marine Megafauna—2nd Edition

edited by

José Carlos Báez

submission deadline 15 Jan 2026 | Viewed by 100 | Submission Open

Keywords: bycatch; climate variability; ecological risk assessment; ecosystem approach; conservation management; marine protected areas

(This special issue belongs to the Section Biodiversity Conservation)

The Applications of Emerging Technologies on Biodiversity Conservation

edited by

Xinhai Li

and

Guiming Wang

submission deadline 31 Jan 2026 | 5 articles | Viewed by 9979 | Submission Open

Keywords: acoustic monitoring; AI-based method; generative pre-trained transformer; satellite; drone; robot

(This special issue belongs to the Section Biodiversity Conservation)

Foraminiferal Research: Modern Approaches and Emerging Trends

edited by Patricia Eichler, Moab Praxedes Gomes and Jere H. Lipps

submission deadline 31 Jan 2026 | 3 articles | Viewed by 2559 | Submission Open

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

(This special issue belongs to the Section Marine Diversity)

Diversity, Physiology and Ecology of Marine Microorganisms

edited by Xianzhe Gong and

Weizhi Song

submission deadline 31 Jan 2026 | Viewed by 190 | Submission Open

Keywords: diversity; ecology; physiology; microbiology; ocean

(This special issue belongs to the Section Marine Diversity)

Diversity and Systematics of Plant-Associated Fungi

edited by Jiwen Xia,

Jian Ma

and

Xiuguo Zhang

submission deadline 31 Jan 2026 | Viewed by 112 | Submission Open

Keywords: fungi diversity; systematics; plant-associated fungi

Plant Signals Driving Resilience Against Abiotic and Biotic Stresses

edited by

Rosa Rao

and Valeria Castaldi

submission deadline 31 Jan 2026 | Viewed by 103 | 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, Phylogeny and Ecology of Marine Microorganisms

edited by

Cong Sun

, Lin Xu, Jianyang Li and

Angelina Lo Giudice

submission deadline 31 Jan 2026 | Viewed by 69 | 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)

Microbial Diversity in Changing Ecosystems: From Mechanisms to Applications

edited by

Ipek Kurtboke

submission deadline 31 Jan 2026 | Viewed by 48 | Submission Open

Keywords: microbial conservation; ecosystem functioning; biodiversity monitoring; environmental microbiology; culture collections

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

Coral Reef Ecology and Diversity Conservation

edited by

Anthony D. Montgomery

and

Dan A. Polhemus

submission deadline 31 Jan 2026 | Viewed by 43 | 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)

Spatial and Temporal Studies in Marine Protected Areas: Mexican Chapter—2nd Edition

edited by

Marlenne Manzano-Sarabia

submission deadline 31 Jan 2026 | Viewed by 15 | Submission Open

Keywords: marine protected areas; Ramsar sites; islands; wetlands; climate change; ocean warming; Gulf of California; California current system; Mexican Pacific; Gulf of Mexico

(This special issue belongs to the Section Marine Diversity)

Undersea Refuges: Functional Ecology and Biodiversity of Coral Reef Ecosystems

edited by

Joaquín Rodrigo Garza Pérez

submission deadline 10 Feb 2026 | Viewed by 30 | Submission Open

Keywords: coral; biodiversity; ecology

(This special issue belongs to the Section Marine Diversity)

Advances in Hymenoptera Diversity and Biology

edited by Jiao Tang and

Aleš Gregorc

submission deadline 15 Feb 2026 | 1 articles | Viewed by 434 | Submission Open

Keywords: Hymenoptera; diversity; biology; genetic diversity; conservation; biotechnological approaches

Apoidea Biology, Evolution and Management

edited by Daniel M. Sánchez and Jovani Ruiz-Toledo

submission deadline 15 Feb 2026 | Viewed by 228 | Submission Open

Keywords: Apoidea; bees; evolution and biology; systematics; ecology; conservation; pollination; integrated pest management (IPM); phylogenetics; applied entomology

(This special issue belongs to the Section Animal Diversity)

Montane Ecosystems and Diversity—2nd Edition

edited by

Nigel Barker

submission deadline 15 Feb 2026 | Viewed by 73 | Submission Open

Keywords: mountain biodiversity; climate change; altitudinal gradients; refugia; conservation; ecosystem services; endemism; genetic diversity; biological invasions and other threats

(This special issue belongs to the Section Biodiversity Conservation)

Challenges for Hymenoptera in the Anthropocene

edited by

Bruno Barbosa

and

Guy Smagghe

submission deadline 24 Feb 2026 | Viewed by 285 | Submission Open

Keywords: Hymenoptera; Anthropocene; environmental change; intrinsic factors; adaptive mechanisms; conservation strategies

Emerging Effects of Pollinator Loss on Biodiversity

edited by

Ekaterina Kozuharova

and

Toshko Ljubomirov

submission deadline 28 Feb 2026 | 4 articles | Viewed by 13123 | Submission Open

Keywords: pollination and pollinator communities; insect conservation; pollination ecology; plant– pollinator interactions; plant– pollinator networks; Hymenoptera; Lepidoptera; Diptera

(This special issue belongs to the Section Plant Diversity)

Wetland Biodiversity and Ecosystem Conservation

edited by

Lele Liu

, Yaolin Guo, Youzheng Zhang and Weihua Guo

submission deadline 28 Feb 2026 | 5 articles | Viewed by 2375 | Submission Open

Keywords: wetland biodiversity; ecosystem conservation; global change biology; anthropogenic disturbance; biological invasion

(This special issue belongs to the Section Biodiversity Conservation)

Diversity and Ecology of Freshwater Plankton

edited by

István Gyulai

Berta Csaba

and

István Grigorszky

submission deadline 28 Feb 2026 | 3 articles | Viewed by 1591 | Submission Open

Keywords: algae; zooplankton; community composition; biodiversity and conservation; population and community ecology; indicator species; aquatic food webs; environmental monitoring

(This special issue belongs to the Section Freshwater Biodiversity)

Paleohistological Studies in Marine Vertebrates: Evolution, Adaptation, and Microstructural Diversity

edited by

Marianella Talevi

and Caro Acosta Hospitaleche

submission deadline 28 Feb 2026 | Viewed by 88 | Submission Open

Keywords: histology; osteohistology; bone microstructure; marine vertebrates

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

Evolution, Development, and Diversification of Vertebrates, Part 2: Patterning and Mechanisms of Morphogenesis

edited by

Raul E. Diaz

submission deadline 28 Feb 2026 | Viewed by 77 | 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)

Canopy Ecology—Biodiversity, Functions, and Conservation

edited by

José Juan Flores-Martínez

and

Víctor Sánchez-Cordero

submission deadline 28 Feb 2026 | Viewed by 73 | Submission Open

Keywords: arboreal ecosystems; epiphytes; vertical stratification; canopy– atmosphere interactions; treetop conservation

(This special issue belongs to the Section Plant Diversity)

Invasive Species in Freshwater Ecosystems in the Americas

edited by

Sarma Nandini

and S.s.s. Sarma

submission deadline 28 Feb 2026 | Viewed by 18 | 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)

Microbial Community Dynamics and Ecological Functions in Wetlands

edited by

Genoveva F. Esteban

and Xia Yuan

submission deadline 28 Feb 2026 | Viewed by 7 | Submission Open

Keywords: wetland ecosystems; microbial ecology; community diversity; population dynamics; biogeochemical cycling; microbial adaptation; ecosystem functioning; emerging contaminants; mixed contaminant effects; ecotoxicology; ecosystem resilience; wetland conservation

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

Microbial Diversity and Function Exploration in Oilfield Ecosystems and Petroleum-Contaminated Environments

edited by Yanling Ma

submission deadline 28 Feb 2026 | Submission Open

Keywords: oil sludge; illumina MiSeq sequencing; microbial community/diversity; 16S rRNA gene; multi-omics analysis

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

Geohazards and Ecosystem Resilience

edited by Felix Kwabena Donkor

submission deadline 15 Mar 2026 | Viewed by 47 | Submission Open

Keywords: ecosystem services; geological hazards; disaster risk; environmental sustainability; SDGs; natural hazards; ecological integrity; climate change adaptation; disaster resilience; ecosystem regeneration

(This special issue belongs to the Section Biodiversity Conservation)

Threats and Challenges for the Study and Conservation of Freshwater Zooplankton Biodiversity

edited by

Carlos López

and Claudia Bonecker

submission deadline 30 Mar 2026 | Viewed by 65 | Submission Open

Keywords: cladocerans; rotifers; copepods; plankton; freshwater environments; biodiversity; conservation

(This special issue belongs to the Section Freshwater Biodiversity)

Diversity and Biogeography of Crustaceans in Continental Waters

edited by

Elena S. Chertoprud

and

Anna A. Novichkova

submission deadline 31 Mar 2026 | 5 articles | Viewed by 11028 | Submission Open

Keywords: freshwater crustacea; brackish-water crustacea; taxonomy; phylogeny; ecology; biogeography

(This special issue belongs to the Section Freshwater Biodiversity)

Conflict and Coexistence Between Humans and Wildlife

edited by

Li Zhang

submission deadline 31 Mar 2026 | 6 articles | Viewed by 9156 | Submission Open

Keywords: wildlife conservation; human– wildlife conflicts; population dynamics; mitigation strategies

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

Diversity and Ecology of Termites

edited by

Alberto Arab

, Robin Casalla Daza, Olga P. Pinzón and Ervin Humprey Duran-Bautista

submission deadline 31 Mar 2026 | 3 articles | Viewed by 6071 | Submission Open

Keywords: diversity; niche and ecological functions; evolution of eusociality; caste development; systematics; 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

(This special issue belongs to the Section Animal Diversity)

Functional and Taxonomic Plant Diversity: Applications for Ecological Monitoring and Management

edited by

Giovanni Bacaro

submission deadline 31 Mar 2026 | 1 articles | Viewed by 359 | Submission Open

Keywords: functional diversity; ecosystem functioning; plant diversity; biodiversity monitoring; conservation planning

(This special issue belongs to the Section Plant Diversity)

Advancing the Research and Conservation of the Estuarine and Coastal Ecosystems of California and Baja California

edited by

Pedro Morais

and

Julio Lorda

submission deadline 31 Mar 2026 | Viewed by 51 | Submission Open

Keywords: estuarine ecosystems; estuaries; coastal lagoons; tidal habitats; biology; ecology; conservation; management; physical oceanography; chemical oceanography; biological oceanography

Microbial Diversity in Different Environments

edited by

Xin Sui

submission deadline 31 Mar 2026 | Viewed by 45 | Submission Open

Keywords: MIcrobial; forest; soil; wetland; diversity

Avian Diversity in Forest and Grassland—2nd Edition

edited by

Grzegorz Kopij

submission deadline 31 Mar 2026 | Viewed by 41 | Submission Open

Keywords: avian community; avian diversity; environmental changes; forest fragmentation; population density and dynamics; conservation of forest birds; nest box studies; effect of habitat; structure and floral composition; urbanized versus natural woodlands; natural versus cultivated forests

Cryptic Diversity in Animals at Genetical, Morphological, and Ecological Levels

edited by Manuel Ruiz-García

submission deadline 31 Mar 2026 | Viewed by 35 | Submission Open

Keywords: animals; chromosomal diversity; DNA diversity; protein diversity; morphological and morphometry diversity; taxonomy diversity; ecological diversity

(This special issue belongs to the Section Animal Diversity)

Mammalian Diversity and Life-History Responses to Climate Change

edited by

Paul J. Jacobs

and Daniel William Hart

submission deadline 31 Mar 2026 | Viewed by 22 | Submission Open

Keywords: climate change; thermal extremes; life history traits; physiological plasticity; behavioural adaptation; predictive modelling; species resilience; biodiversity forecasting

Parasites and Vectors: Diversity and Ecological Interactions

edited by

Luciana Panait

and

Rodolfo Garcia-Contreras

submission deadline 15 Apr 2026 | Viewed by 76 | Submission Open

Keywords: biodiversity; vector-borne diseases; host– parasite interactions; parasitic zoonoses; ecology; epidemiology; disease transmission; vector competence; emerging parasitic diseases; taxonomy and systematics

Ecology and Diversity of Soil Microbial Communities in an Era of Global Change

edited by

Emoke Dalma Kovacs

Teodor Rusu

, Khoi Nghia Nguyen and

Melinda Haydee Kovacs

submission deadline 20 Apr 2026 | 1 articles | Viewed by 685 | Submission Open

Keywords: microbial diversity; microbial dominance; stress index; soil functions; land-use; climate change; multi-omics

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

Pseudomonas Biology and Biodiversity

edited by

Dimitris Mossialos

submission deadline 30 Apr 2026 | 4 articles | Viewed by 23535 | Submission Open

Keywords: Pseudomonas; biodiversity; omic technologies; community structure; phylogenomics; metagenomics; biotechnological applications

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

Anthropogenic Impacts on Marine Ecosystems: A Biodiversity Conservation Emergency

edited by

Enrique Lozano

and

Jesús Alcázar-Treviño

submission deadline 30 Apr 2026 | 4 articles | Viewed by 7514 | Submission Open

Keywords: marine pollution; anthropogenic impacts; marine biodiversity; conservation threats; plastic pollution; heavy metals and trace elements; acoustic pollution

(This special issue belongs to the Section Biodiversity Conservation)

Climate Change and Forest Biodiversity: Impacts and Strategies for Conservation

edited by

Yunchuan Dai

submission deadline 30 Apr 2026 | 1 articles | Viewed by 1331 | Submission Open

Keywords: climate change; biodiversity conservation; forest ecosystem assessment; ecosystem service; human-wildlife conflicts

(This special issue belongs to the Section Biodiversity Conservation)

Systematics, Evolution and Diversity in Ants

edited by Fernando Fernández and Roberto José Guerrero

submission deadline 30 Apr 2026 | 1 articles | Viewed by 1039 | Submission Open

Keywords: ants; systematics; phylogeny; diversity; biogeography

(This special issue belongs to the Section Animal Diversity)

Plant Communities in Transition: Succession, Diversity, and Ecosystem Dynamics

edited by

Thomas Fickert

submission deadline 30 Apr 2026 | 1 articles | Viewed by 143 | Submission Open

Keywords: vegetation dynamics; succession; mosaic cycles; gap dynamics; cohort dynamics; colonization; propagule dispersal pathways; species turnover; ecosystem functioning; conservation; natural regeneration

(This special issue belongs to the Section Plant Diversity)

Coastal Aquaculture for Climate and Biodiversity Resilience: The Role of Macroalgae and Bivalves

edited by Pablo P. Leal

submission deadline 30 Apr 2026 | Viewed by 73 | Submission Open

Keywords: nature-based solutions; marine farming; coastal conservation; biodiversity protection

(This special issue belongs to the Section Marine Diversity)

Biodiversity Under Pressure: Vertebrates Diversity, Function and Conservation in Human-Modified Landscapes

edited by

Javier Alejandro Lopez

and Romina Ghirardi

submission deadline 30 Apr 2026 | Viewed by 58 | Submission Open

Keywords: vertebrate diversity; anthropogenic impact; ecological function; conservation; bioindicators; environmental stressors; landscape changes

Plant Adaptation and Survival Under Global Environmental Change

edited by

Claudia D. Nicolae

submission deadline 30 Apr 2026 | Viewed by 53 | Submission Open

Keywords: plant adaptation; climate resilience; ecological evolution; species distributions; vegetation shifts; conservation genomics; climatic selection

(This special issue belongs to the Section Biogeography and Macroecology)

Insect Diversity: Morphology, Paleontology, and Biogeography

edited by Cecilia Waichert,

Wesley Colombo

and Celso Oliveira Azevedo

submission deadline 30 Apr 2026 | Viewed by 26 | Submission Open

Keywords: functional morphology; palaeoentomology; paleoecology; phylogenetics; species distribution

(This special issue belongs to the Section Animal Diversity)

Biodiversity and Ecology of Soil Fungal Communities—2nd Edition

edited by