Co‐occurrence patterns in a steppe bird community: insights into the role of dominance and competition

A Barrero, O Ovaskainen, J Traba, J Gómez‐Catasús - Oikos, 2023 - Wiley Online Library
Spatial co‐occurrence patterns are determined by environmental factors, such as food
availability or habitat characteristics and by biotic associations. When resources are limited …

Dietary niche overlap and resource partitioning among six steppe passerines of Central Spain using DNA metabarcoding

J Zurdo, A Barrero, LP da Silva, D Bustillo‐de la Rosa… - Ibis, 2023 - Wiley Online Library
Trophic niche partitioning is a mechanism that facilitates the coexistence of ecologically
similar species by sharing their resource use. However, detailed information of the trophic …

Conspecific density and habitat quality drive the defence and vocal behaviour of a territorial passerine

A Barrero, J Gómez‐Catasús, C Pérez‐Granados… - Ibis, 2024 - Wiley Online Library
Territorial defence depends on highly interrelated factors such as food abundance and
conspecific density. We used Dupont's Lark Chersophilus duponti as a model species to …

Comparative assessment of satellite‐and drone‐based vegetation indices to predict arthropod biomass in shrub‐steppes

J Traba, J Gómez‐Catasús, A Barrero… - Ecological …, 2022 - Wiley Online Library
Arthropod biomass is a key element in ecosystem functionality and a basic food item for
many species. It must be estimated through traditional costly field sampling, normally at just …

[HTML][HTML] Moderate sheep grazing increases arthropod biomass and habitat use by steppe birds

J Gómez-Catasús, M Reverter… - Agriculture, Ecosystems …, 2023 - Elsevier
Open semi-natural ecosystems have been historically shaped by anthropogenic land-use,
and the abandonment or intensification of these activities implied a detrimental alteration of …

Nest features and nesting niche segregation in five Iberian steppe passerines

A Barrero, BC Caballero, M Reverter… - Ardeola, 2023 - BioOne
The co-occurrence of morphologically similar species may be enabled by differences in
resource use that limit the effects of interspecific competition, allowing coexistence. This …

Increased density of conspecifics caused niche contraction in a multispecific passerine assemblage

A Barrero, J Traba, R Tarjuelo - Ecology, 2024 - Wiley Online Library
Competition is a prominent mechanism driving population dynamics and structuring
community assemblage, which can be investigated by linking shifts in species' ecological …

Landscape features influencing gene flow and connectivity of an endangered passerine

D Bustillo‐de la Rosa, A Barrero, J Traba… - Ecology and …, 2024 - Wiley Online Library
Dispersal of individuals and gene flow are crucial aspects to maintain genetic diversity and
viability of populations, especially in the case of threatened species. Landscape composition …

[HTML][HTML] Prey choice in insectivorous steppe passerines: New insights from DNA metabarcoding

J Zurdo, M Reverter, A Barrero… - Global Ecology and …, 2023 - Elsevier
Food availability plays a key role affecting almost every aspect of bird ecology, including bird
population, distribution, reproduction, and behavior. Understanding the functional …

[HTML][HTML] Selecting the best: Interspecific and age-related diet differences among sympatric steppe passerines

J Zurdo, P Gómez-López, A Barrero… - Avian Research, 2023 - Elsevier
Parental food provisioning is crucial for the growth and survival of offspring. Growth rate
depends on food quality and food supplied to offspring may differ from what adults use for …