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Diversity, Volume 17, Issue 12

December 2025 - 65 articles

Cover Story: Avian diets can be highly diverse but are often difficult to characterize, especially in small songbirds. Despite its widespread distribution, striking plumage, and nomadic movements in search of tree seeds, the diet of the Evening Grosbeak (Hesperiphona vespertina) has not been systematically characterized across its range. To address this gap, we examined more than 50,000 photographs of Evening Grosbeaks archived in the Macaulay Library. Foraging on natural food items was documented in 1075 images. Identified foods included at least 96 plant species from 25 families, one insect species, and two lichen species. Despite this high observed diversity, richness estimators indicate that additional dietary diversity remains undocumented. To our knowledge, this study represents the first range-wide analysis of a songbird’s diet using photographs from a community-sourced archive. View this paper
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Articles (65)

  • Article
  • Open Access
319 Views
21 Pages

DNA Barcoding for Managing Blackberry Genetic Resources on Black Sea Coast (Russia)

  • Igor Yu. Zhuravlev,
  • Anton V. Korzhuk,
  • Elena S. Tyurina,
  • Nadezhda A. Dobarkina,
  • Elena N. Markova,
  • Evgenija I. Gereeva,
  • Ioanna M. Protasova,
  • Mikhail T. Menkov,
  • Irina V. Rozanova and
  • Lilija Yu. Shipilina
  • + 2 authors

18 December 2025

Accurate species identification in blackberries (Rubus spp.) is difficult because of morphological similarity and frequent hybridization. We studied 56 wild accessions from the Sirius Federal Territory (Russia), representing coastal and foothill ecos...

  • Article
  • Open Access
234 Views
13 Pages

Revisiting the Invasion: A Success Story of Crayfish Species in Piedmont Plain Lakes (NW Italy)

  • Angela Boggero,
  • Marco Orlandi,
  • Silvia Zaupa and
  • Lyudmila Kamburska

18 December 2025

Crayfish often become invasive when introduced to new waters. From the late 19th to the late 20th century, the commercial import of North American species (e.g., Faxonius limosus, Pacifastacus leniusculus, Procambarus clarkii) into Europe for food, o...

  • Article
  • Open Access
342 Views
16 Pages

Seasonal Dynamics of Phytoplankton Community Structure and Environmental Drivers in the Coastal Waters of the Leizhou Peninsula, China

  • Jianming Li,
  • Menghan Gao,
  • Bihong Liu,
  • Yingyi Fan,
  • Junyu Wei,
  • Yulei Zhang,
  • Feng Li,
  • Ning Zhang and
  • Zhangxi Hu

17 December 2025

To investigate the seasonal dynamics of phytoplankton community structure and its relationship with environmental factors in the coastal waters of the Leizhou Peninsula, China, surveys were conducted at 21 stations during four seasonal cruises: autum...

  • Article
  • Open Access
217 Views
12 Pages

17 December 2025

Habitat fragmentation profoundly alters ecological processes such as seed predation and dispersal. Ants play a central role as seed removers and dispersers, yet the effects of fragmentation on seed-carrying ant assemblages in dry tropical forests rem...

  • Article
  • Open Access
522 Views
13 Pages

17 December 2025

Beetles (Coleoptera) represent one of the most diverse insect groups and play vital ecological roles, yet their accurate identification is often challenging due to morphological similarities among taxa. DNA barcoding has emerged as a powerful and rel...

  • Feature Paper
  • Article
  • Open Access
444 Views
18 Pages

Turnover, Uniqueness, and Environmental Filtering Shape Helminth Parasite Metacommunities in Freshwater Fish Pseudoxiphophorus bimaculatus (Cyprinodontiformes: Poeciliidae)

  • Ivonne López-del-Monte,
  • Oscar Rico-Chávez,
  • Juan Manuel Caspeta-Mandujano,
  • Edgar Fernando Mendoza-Franco,
  • Norman Mercado-Silva,
  • Jesús Montoya-Mendoza,
  • Miguel Rubio-Godoy,
  • Ismael Guzmán-Valdivieso,
  • Benjamín Quiroz-Martínez and
  • Guillermo Salgado-Maldonado

17 December 2025

Understanding the processes that shape parasite community structure across spatial scales is essential for linking ecological theory with host–parasite dynamics. Using a metacommunity framework, we examined the metacommunity of helminth parasit...

  • Article
  • Open Access
440 Views
14 Pages

DNA Barcode Identification for Gastropod and Bivalve Species in Coastal Bays and Islands of Vietnam

  • Nguyen Chi Mai,
  • Pham Thi Hoe,
  • Le Quang Trung,
  • Nguyen Tuong Van,
  • Luu Xuan Hoa,
  • Hoang Dinh Chieu,
  • Do Cong Thung,
  • Bui Minh Tuan,
  • Pham Tran Dinh Nho and
  • Le Quynh Lien
  • + 1 author

16 December 2025

Vietnam, a coastal and tropical country, harbors a high diversity of marine mollusks, particularly gastropods and bivalves. However, the taxonomy of these groups is frequently confounded by their morphological similarities and pronounced plasticity....

  • Article
  • Open Access
244 Views
17 Pages

16 December 2025

The Maximum Entropy (MaxEnt) model, integrated with ArcGIS (a geographic information system), was employed to project potential species distribution under current conditions and future climate scenarios (SSP1–2.6, SSP2–4.5, SSP5–8.5...

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Diversity - ISSN 1424-2818