Environmental drivers of ant dominance in a tropical rainforest canopy at different spatial scales

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00535319" target="_blank" >RIV/60077344:_____/21:00535319 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/een.12988" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/een.12988</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/een.12988" target="_blank" >10.1111/een.12988</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Environmental drivers of ant dominance in a tropical rainforest canopy at different spatial scales

Popis výsledku v původním jazyce

Tropical trees accommodate a high co-occurrence of ant species, mainly due to the high diversity of microhabitats available. However, a fewant species are highly abundant, dominating resources and defending territories in tree canopies. Although arboreal ants have been studied extensively, little is known about the structural drivers of ant spatial dominance in tropical rainforest canopies. This study investigated whether canopy treemicrohabitats and micro-environmental factors (given by branch characteristics and spatial position of sampling points within tree crowns) are determinants of ant presence and species composition in a Mexican tropical rainforest. It also analysed whether whole tree characteristics, that is, the tree canopy, given by tree size and epiphyte/climbing plant richness and abundance, could determine ant spatial dominance of food resources. This study found a higher probability of ant presence on baits lower in the canopy, probably a result of ants foraging in the zones between the treetops and the ground layer. No microhabitat or micro-environmental variables were related to ant species composition. It also observed less dissimilarity of species composition between baits and between trees than between plots, revealing that each plot presents a unique set of species. Moreover, increased tree height and epiphyte/climbing plant abundance (i.e., structural heterogeneity and greater foraging area) and lower epiphyte/climbing plant richness led to decreasing ant dominance. This study’s findings reveal that, while micro-environmental factors have almost no influence on the foraging of dominant ant species within canopy trees, the size and heterogeneity of trees shape ants’ spatial dominance.

Název v anglickém jazyce

Environmental drivers of ant dominance in a tropical rainforest canopy at different spatial scales

Popis výsledku anglicky

Tropical trees accommodate a high co-occurrence of ant species, mainly due to the high diversity of microhabitats available. However, a fewant species are highly abundant, dominating resources and defending territories in tree canopies. Although arboreal ants have been studied extensively, little is known about the structural drivers of ant spatial dominance in tropical rainforest canopies. This study investigated whether canopy treemicrohabitats and micro-environmental factors (given by branch characteristics and spatial position of sampling points within tree crowns) are determinants of ant presence and species composition in a Mexican tropical rainforest. It also analysed whether whole tree characteristics, that is, the tree canopy, given by tree size and epiphyte/climbing plant richness and abundance, could determine ant spatial dominance of food resources. This study found a higher probability of ant presence on baits lower in the canopy, probably a result of ants foraging in the zones between the treetops and the ground layer. No microhabitat or micro-environmental variables were related to ant species composition. It also observed less dissimilarity of species composition between baits and between trees than between plots, revealing that each plot presents a unique set of species. Moreover, increased tree height and epiphyte/climbing plant abundance (i.e., structural heterogeneity and greater foraging area) and lower epiphyte/climbing plant richness led to decreasing ant dominance. This study’s findings reveal that, while micro-environmental factors have almost no influence on the foraging of dominant ant species within canopy trees, the size and heterogeneity of trees shape ants’ spatial dominance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10616 - Entomology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Ecological Entomology

ISSN

0307-6946

e-ISSN

1365-2311

Svazek periodika

46

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

440-450

Kód UT WoS článku

000594249100001

EID výsledku v databázi Scopus

2-s2.0-85096851009