Urbanization weakens mutualisms without affecting antagonisms of a hawkmoth-pollinated plant species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00639699" target="_blank" >RIV/67985939:_____/25:00639699 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ufug.2025.129070" target="_blank" >https://doi.org/10.1016/j.ufug.2025.129070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ufug.2025.129070" target="_blank" >10.1016/j.ufug.2025.129070</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Urbanization weakens mutualisms without affecting antagonisms of a hawkmoth-pollinated plant species

Popis výsledku v původním jazyce

The influence of urbanization on ecosystems extends beyond the impact on individual species, affecting interactions among multiple species, and thereby ecosystem functioning. In this study, we asked whether interaction intensity between plants and their mutualists and antagonists varies along an urbanization gradient. To address this question, we evaluated changes in the interactions of Nicotiana longiflora Cav. (Solanaceae) with arbuscular mycorrhizal fungi (AMF) and nocturnal hawkmoth pollinators as mutualists, and with insect herbivores as antagonists across an urbanization gradient. We assessed female plant fitness, pollination intensity by nocturnal hawkmoths, AMF root colonization, and floral and leaf herbivory across 29 populations and their relationship with urbanization metrics, including type of area cover, degree of light pollution, and impervious surface cover. We found that as impervious surface cover and degree of light pollution increase, hawkmoth visitation, and conspecific pollen load on stigmas significantly decreased. Herbivory did not significantly vary with urbanization metrics. Results are consistent with the known influence of artificial illumination on nocturnal pollinator activity. Total root colonization by AMF increased with impervious surface cover and highly compact urban areas probably due to enhanced net photosynthetic response and greater carbon allocation to roots. In addition, Vesicular colonization increased with natural grasslands. Overall, our findings indicate that urbanization has the potential to influence multiple plant interactions in different ways, ultimately leading to a net negative impact on plant benefits. This could have long-term consequences for plant fitness by indirectly altering how below- and above-ground partners perform their mutualistic or antagonistic roles.

Název v anglickém jazyce

Urbanization weakens mutualisms without affecting antagonisms of a hawkmoth-pollinated plant species

Popis výsledku anglicky

The influence of urbanization on ecosystems extends beyond the impact on individual species, affecting interactions among multiple species, and thereby ecosystem functioning. In this study, we asked whether interaction intensity between plants and their mutualists and antagonists varies along an urbanization gradient. To address this question, we evaluated changes in the interactions of Nicotiana longiflora Cav. (Solanaceae) with arbuscular mycorrhizal fungi (AMF) and nocturnal hawkmoth pollinators as mutualists, and with insect herbivores as antagonists across an urbanization gradient. We assessed female plant fitness, pollination intensity by nocturnal hawkmoths, AMF root colonization, and floral and leaf herbivory across 29 populations and their relationship with urbanization metrics, including type of area cover, degree of light pollution, and impervious surface cover. We found that as impervious surface cover and degree of light pollution increase, hawkmoth visitation, and conspecific pollen load on stigmas significantly decreased. Herbivory did not significantly vary with urbanization metrics. Results are consistent with the known influence of artificial illumination on nocturnal pollinator activity. Total root colonization by AMF increased with impervious surface cover and highly compact urban areas probably due to enhanced net photosynthetic response and greater carbon allocation to roots. In addition, Vesicular colonization increased with natural grasslands. Overall, our findings indicate that urbanization has the potential to influence multiple plant interactions in different ways, ultimately leading to a net negative impact on plant benefits. This could have long-term consequences for plant fitness by indirectly altering how below- and above-ground partners perform their mutualistic or antagonistic roles.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Urban Forestry & Urban Greening

ISSN

1618-8667

e-ISSN

1610-8167

Svazek periodika

113

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

129070

Kód UT WoS článku

001582082400001

EID výsledku v databázi Scopus

2-s2.0-105016796700