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1.
What does the future hold? : habitat suitability and conservation implications for rare and widespread plant species under climate change
Sara M. Brito Lopes, Sílvia Castro, João Loureiro, Peter Glasnović, Boštjan Surina, Mariana Castro, 2026, izvirni znanstveni članek

Opis: Aim Evaluate how future environmental conditions may reshape plant distributions to identify conservation priorities in a rapidly changing environment, thereby informing effective conservation planning and mitigating the consequences of plant decline for biodiversity, species interactions and ecosystem functioning. Location Europe, with particular emphasis on the Iberian Peninsula. Methods We modelled short-term suitable habitats for rare plant species and their widespread congeners under future climate change scenarios (2041–2060). We used species distribution modelling (SDM) to project future habitat suitability for 22 pairs of congeneric species from 17 plant families, under two climate scenarios, evaluating the overall responses of rare versus widespread taxa. Using SDM, we estimated the future suitable area for each taxon by assessing potential habitat loss, habitat expansion into new areas and stable habitat, as well as the loss of currently occupied areas projected to become environmentally unsuitable under future climate scenarios. Results Our findings show that rare species are expected to lose more suitable habitat than they gain and to experience greater overall habitat loss than their widespread counterparts. However, responses varied among congeneric species pairs: 41% of rare species were projected to expand their suitable habitat, while 36% of widespread species were projected to undergo habitat contraction. Main Conclusions This study provides a practical tool to support proactive conservation planning, including the identification of priority areas for protection, population monitoring, and assisted colonisation. It also shows that currently widespread species may become vulnerable in the near future, reinforcing the need for dynamic, forward-looking conservation strategies in which SDM projections are interpreted alongside evidence on species' reproductive biology, dispersal capacity and genetic diversity.
Ključne besede: species distribution modelling, climate change, plant conservation
Objavljeno v RUP: 02.09.2026; Ogledov: 99; Prenosov: 2
.pdf Celotno besedilo (3,92 MB)
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2.
A pan-European citizen science study shows population size, climate and land use are related to biased morph ratios in the heterostylous plant Primula veris
Tsipe Aavik, Triin Reitalu, Marianne Kivastik, Iris Reinula, Sabrina Träger, Evelyn Uuemaa, Marta Barberis, Arjen Biere, Sílvia Castro, Sara A. O. Cousins, Živa Fišer, 2026, izvirni znanstveni članek

Opis: The distylous plant Primula veris has long served as a model species for studying heterostyly, that is the occurrence of multiple floral morphs within a population to ensure outcrossing. Habitat loss, reduced plant population sizes, and climate change have raised concerns about the impact of these factors on morph ratios and the related consequences on fitness of heterostylous species. We studied the deviation of floral morphs of P. veris from isoplethy (i.e. equal frequency) in response to plant population size, landscape context and climatic factors, based on a pan-European citizen science campaign involving observations from 28 countries. In addition, we examined the relative frequency of morphs to determine whether landscape and climatic factors disrupt morph frequencies or whether a specific morph has an advantage over the other. Theory predicts equal frequencies of short-styled S-morphs and long-styled L-morphs in populations at equilibrium. However, data from >3000 populations showed a substantial morph deviation from isoplethy and a significant excess of S-morphs (9% higher compared to L-morphs). Deviation of morph frequency from equilibrium was substantially stronger in smaller populations and was not affected by morph identity. Higher summer precipitation and land use intensity were associated with an increased prevalence of S-morphs. Five populations containing individuals exhibiting short homostyle phenotypes (with the style and anthers in low positions) were found. Genotyping of the individuals at CYP734A50 gene of the S locus, which determines the length of the style and the position of anthers of P. veris, revealed no mutations in this region. Our results based on an unprecedented geographic sampling suggest that changes in land use and climate may be responsible for non-equilibrium morph frequencies. This large-scale citizen science initiative sets foundations for future studies to clarify whether the unexpected excess of S-morphs is due to partial intra-morph compatibility, disruption of heterostyly or survival advantage of S-morphs. Synthesis. Human-induced environmental change may affect biodiversity indirectly through altering reproductive traits, which can also lead to reduced fitness and genetic diversity. Further research should consider the possible role of pollinators in mediating the ecological and evolutionary consequences of recent landscape and climatic shifts on plant reproductive traits.
Ključne besede: citizen science, flower, heterostily
Objavljeno v RUP: 16.01.2026; Ogledov: 828; Prenosov: 8
.pdf Celotno besedilo (2,66 MB)
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