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1. Trapped between drowning and desiccation: Riverine plants under hydropeaking

Author:
Alejandro Baladrón,   et al.   ; María Dolores Bejarano; Judith M. Sarneel; Isabel Boavida;     Show all 4 Authors
Source:
Science of the total environment 2022 v.829 pp. 154451
ISSN:
0048-9697
Subject:
Alnus incana; Betula pubescens; Carex; Filipendula; biomass; drought; environment; germination; greenhouses; riparian areas; soil; vegetation; vegetative growth; water power
Abstract:
... Hydropeaking is part of hydropower production. The discontinuous release of turbined water during hydropeaking generates sudden rise and falls of the water levels, as well as extended droughts. These artificial flow fluctuations impose challenging growing conditions for riverine vegetation. In order to identify vulnerable/resistant plant species to hydropeaking and to evaluate the impact of contra ...
DOI:
10.1016/j.scitotenv.2022.154451

2. Nest Dimensions, Burrow-Lining, and Decoration Behavior of Burrowing Owls in the Pampas

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; María S. Bó; Juan P. Isacch;     Show all 4 Authors
Source:
Journal of raptor research 2021 v.55 no.2 pp. 255-266
ISSN:
0892-1016
Subject:
Athene cunicularia; birds of prey; burrows; land cover; nests; soil; Argentina; North America
Abstract:
... Nesting in burrows is uncommon among birds, but one example of a burrow-nesting raptor is the Burrowing Owl (Athene cunicularia). In most areas of North America, where this raptor has been extensively studied, it typically uses burrows of fossorial mammals, but in southern South America this owl digs its own burrows. We studied characteristics of size, lining, and decoration of Burrowing Owl nests ...
DOI:
10.3356/0892-1016-55.2.255

3. Can vegetation provide shelter to cyprinid species under hydropeaking?

Author:
Alejandro Baladrón,   et al.   ; Maria João Costa; María Dolores Bejarano; António Pinheiro; Isabel Boavida;     Show all 5 Authors
Source:
Science of the total environment 2021 v.769 pp. 145339
ISSN:
0048-9697
Subject:
Carex; Luciobarbus bocagei; Pseudochondrostoma; acoustics; base flow; environment; fish; hydraulic flumes; rivers; territoriality; vegetation
Abstract:
... A novel study that focuses on the capacity of vegetation to provide shelter for fish species under hydropeaking regimes is presented. Two artificial patches mimicking the structure and density of Carex sp. mats were installed in an experimental flume to test whether submerged plants can offer flow refuge to two cyprinid species, Luciobarbus bocagei and Pseudochondrostoma polylepis, under baseflow ...
DOI:
10.1016/j.scitotenv.2021.145339

4. Are novel ecosystems suitable habitats for native birds? Birds’ association with spontaneous vegetation patches in the argentinean pampas

Author:
Alejandro Baladrón,   et al.   ; Matilde Cavalli; Natalia Soledad Martínez-Curci; María Susana Bó; Nicolas Chiaradía; Susana Peluc; Juan Pablo Isacch;     Show all 7 Authors
Source:
Biodiversity and conservation 2022 v.31 no.3 pp. 811-830
ISSN:
0960-3115
Subject:
biodiversity; birds; fauna; habitats; indigenous species; introduced plants; vegetation; vegetation structure
Abstract:
... Novel ecosystems are characterized by species compositions and relative abundances that differ from those that occurred previously and have the potential for introducing ecological change. In this study, we evaluated bird species that are able to dwell in novel ecosystems in a representative area of the Pampas region. We compared bird assemblages and vegetation structure of different types of nove ...
DOI:
10.1007/s10531-022-02365-1

5. Burrowing owl nest distribution and density in relation to urban development

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; Juan P. Isacch; María S. Bó;     Show all 4 Authors
Source:
Ethology, ecology & evolution 2020 v.32 no.3 pp. 237-250
ISSN:
1828-7131
Subject:
Athene cunicularia; evolution; nests; satellites; species abundance; urban areas; urbanization; villages; Argentina
Abstract:
... The effect of urbanization on birds typically has been evaluated through comparison of species composition between natural and urbanized habitats. However, few studies have examined the changes in species abundance as an urban area grows. During a 5-year period, we monitored two populations of burrowing owls (Athene cunicularia) nesting in separate urban areas with contrasting development and eval ...
DOI:
10.1080/03949370.2020.1711814

6. The role of habituation in the adjustment to urban life: An experimental approach with burrowing owls

Author:
A.V. Baladrón,   et al.   ; M. Cavalli; J.P. Isacch; L.M. Biondi; M.S. Bó;     Show all 5 Authors
Source:
Behavioural processes 2018 v.157 pp. 250-255
ISSN:
0376-6357
Subject:
Athene cunicularia; aggression; birds; fearfulness; habitats; habituation; personality; risk perception
Abstract:
... Birds exhibit variation in fear behaviour in response to an approaching human within and between species and across different habitat contexts. We analyze urban and rural burrowing owls’ variation in risk perception along separate but consecutive days (Treatment 1) and risk perception within the same day (Treatment 2). Fear behaviour was measured as flight initiation distances (FIDs) and aggressiv ...
DOI:
10.1016/j.beproc.2018.10.011

7. Activity Budgets, Foraging Behavior, and Diet of White-Tailed Kites (Elanus leucurus) During Breeding and Nonbreeding Seasons In the Argentine Pampas

Author:
Alejandro V. Baladrón,   et al.   ; Matías G. Pretelli; Matilde Cavalli; María S. Bó;     Show all 4 Authors
Source:
Journal of raptor research 2018 v.52 no.4 pp. 420-430
ISSN:
0892-1016
Subject:
biomass; breeding; breeding season; diet; eating habits; foraging; predators; rodents; North America; Pampas region; South America
Abstract:
... From 2005 to 2009 we evaluated the activity patterns and food habits of White-tailed Kites (Elanus leucurus) during the breeding and nonbreeding seasons in the Argentine Pampas. According to time-activity budget analyses, perching was the most frequently observed activity during the nonbreeding season (52% of total time), whereas foraging was the most frequent activity during the breeding season ( ...
DOI:
10.3356/JRR-17-54.1

8. Burrowing owls eavesdrop on southern lapwings’ alarm calls to enhance their antipredatory behaviour

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; Juan P. Isacch; María S. Bó;     Show all 4 Authors
Source:
Behavioural processes 2018 v.157 pp. 199-203
ISSN:
0376-6357
Subject:
Athene cunicularia; Vanellus chilensis; antipredatory behavior; breeding; foraging; habitats; mammals; nesting; risk assessment
Abstract:
... Eavesdropping is a widespread behaviour among animals, providing the receiver with valuable information to assess the habitat, resources or threats. This kind of behaviour has been reported for the burrowing owl (Athene cunicularia), which in its northern range lives in close association with fossorial mammals and eavesdrops on their alarm calls as indicators of risk. In their southernmost range, ...
DOI:
10.1016/j.beproc.2018.10.002

9. Causes and Consequences of Nest Mass and Structure Variation in the Bay-Capped Wren-Spinetail Spartonoica maluroides

Author:
Alejandro Baladrón,   et al.   ; Daniel Augusto Cardoni; Juan Pablo Isacch;     Show all 3 Authors
Source:
Acta ornithologica 2017 v.52 no.1 pp. 51-58
ISSN:
0001-6454
Subject:
Cyperaceae; Furnariidae; Spartina densiflora; breeding; coastal water; coasts; grasses; leaves; nesting; salt marshes; stems; temperature; vegetation structure; vegetation types; Argentina
Abstract:
... Bay-capped Wren-Spinetail Spartonoica maluroides (Furnariidae) nests very close to the ground in dense clumps of grasses or sedges and builds both open and enclosed nest. We describe a proportion and characteristics of both types of nests and evaluate some causes that could force the construction of one nest architecture or another. In order to study the causes of this variation, we assessed the v ...
DOI:
10.3161/00016454AO2017.52.1.005

10. Habitat Selection by Burrowing Owls Athene cunicularia in the Pampas of Argentina: A Multiple-Scale Assessment

Author:
Baladrón Alejandro V.,   et al.   ; Isacch Juan P.; Cavalli Matilde; Bó María S.;     Show all 4 Authors
Source:
Acta ornithologica 2016 v.51 no.2 pp. 137-150
ISSN:
0001-6454
Subject:
Athene cunicularia; birds of prey; cropland; dunes; habitat preferences; habitats; indigenous species; land cover; land use; landscapes; linear models; nesting sites; probability; remote sensing; surveys; Argentina
Abstract:
... Human-induced habitat changes have been typically linked to negative effects on native species, but an increasing number of studies show that many species are unaffected by these changes or even benefited from them. The Burrowing Owl Athene cunicularia is a raptor species that has deserved special attention in recent years due to its capacity to live in a variety of natural and modified habitats. ...
DOI:
10.3161/00016454AO2016.51.2.001

11. Relative Abundance, Habitat Use, and Seasonal Variability of Raptor Assemblages In the Flooding Pampas of Argentina

Author:
Alejandro V. Baladrón,   et al.   ; María S. Bó; Marc J. Bechard; Ana I. Malizia;     Show all 4 Authors
Source:
Journal of raptor research 2017 v.51 no.1 pp. 38-49
ISSN:
0892-1016
Subject:
Accipiter striatus; Asio; Athene cunicularia; Circus; Falco sparverius; Tyto alba; autumn; birds of prey; cropland; dominant species; ecosystems; falcons; grasslands; grazing; habitat preferences; habitats; land cover; roadsides; seasonal variation; species diversity; spring; surveys; urban areas; Argentina; Pampas region
Abstract:
... We evaluated the species composition, relative abundance, habitat use, and seasonal variability of raptor assemblages in the Flooding Pampas of Argentina, which represents the southeastern part of the biome known as the Rio de la Plata Grasslands. We conducted seasonal roadside surveys to detect raptors in modified and natural habitats over a 3-yr period from spring 2006 through autumn 2009. We cl ...
DOI:
10.3356/JRR-15-56.1

12. Nuevo registro y ampliación de la distribución del género Thylamys (Didelphimorphia: Didelphidae) en la región pampeana de Argentina

Author:
Alejandro V. Baladrón,   et al.   ; Oscar A. Stellatelli;     Show all 2 Author
Source:
Revista mexicana de biodiversidad 2015 v.86 no.2 pp. 553-555
ISSN:
1870-3453
Subject:
Thylamys; females; genetic analysis; Argentina; Pampas region
Abstract:
... A new record for the desert mouse opossum of the genus Thylamys is reported. One female was captured in the General Pueyrredón County, Buenos Aires Province, Argentina. The specimen was found in a mountain environment corresponding to Tandilia system, one of the 2 mountain systems of the Pampas Region. This specimen constitutes the easternmost record, extending its distribution range 135km eastwar ...
DOI:
10.1016/j.rmb.2015.04.015

13. Differential risk perception of rural and urban Burrowing Owls exposed to humans and dogs

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; Juan Pablo Isacch; Laura M. Biondi; María Susana Bó;     Show all 5 Authors
Source:
Behavioural processes 2016 v.124 pp. 60-65
ISSN:
0376-6357
Subject:
Athene cunicularia; aggression; cities; dogs; domestic animals; energy; fearfulness; flight; habitats; humans; models; nests; predators; risk perception; towns; urban areas; urbanization; walking; wild animals; wildlife
Abstract:
... Urban areas expose wildlife to an array of novel predators, amongst which, humans and dogs are highly frequent. Thus, wild animals living in urban areas are forced to invest more time and energy in defence behaviours, which depend on how the risk is perceived and assessed. We experimentally tested whether Burrowing owls coming from rural and urban habitats showed differences in behavioural respons ...
DOI:
10.1016/j.beproc.2015.12.006

14. Microscale nest-site selection by the Burrowing Owl (Athene cunicularia) in the pampas of Argentina

Author:
Alejandro V. Baladrón,   et al.   ; Guadalupe Martínez; Matilde Cavalli; María S. BÓ; Juan P. Isacch;     Show all 5 Authors
Source:
Wilson journal of ornithology 2017 v.129 no.1 pp. 62-70
ISSN:
1559-4491
Subject:
Athene cunicularia; agroecosystems; anthropogenic activities; birds; breeding; dunes; habitats; land cover; land use; landscapes; nesting; nesting sites; open space; reproductive performance; vegetation; Argentina
Abstract:
... Habitat modifications have led many bird species to occupy areas with different characteristics, including human-altered landscapes. In this study, we analyzed how land use influences the nest-site selection at the microscale level by Burrowing Owls (Athene cunicularia) breeding in vegetated sand dunes, periurban areas, and agroecosystems in the Pampas of Argentina. We compared the characteristics ...
DOI:
10.1676/1559-4491-129.1.62

15. Parental care and external sexual characters in the Warbling Doradito (Pseudocolopteryx flaviventris)

Author:
Alejandro V. Baladrón,   et al.   ; D. Augusto Cardoni; Matías G. Pretelli; Juan P. Isacch; Enrique Madrid; Nicolás M. Chiaradia;     Show all 6 Authors
Source:
Journal of ornithology 2017 v.158 no.1 pp. 159-167
ISSN:
2193-7192
Subject:
Tyrannidae; birds; blood sampling; breeding season; clutch size; color; females; males; mating systems; nestlings; nests; parents; plumage; reproductive behavior; sex determination; sexual dimorphism; sexual selection
Abstract:
... Biparental care is the dominant (81 %) form of parental care in birds. The degree of sexual selection and the resulting mating system and parental care type have been determined, in many cases, by inference from external characters of sexual dimorphism. The lack of information and the biological attributes of the tyrant flycatchers (e.g., low sexual dimorphism) make it difficult to determinate the ...
DOI:
10.1007/s10336-016-1378-7

16. Differing nest-defence behaviour in urban and rural populations of breeding Burrowing Owls

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; Juan Pablo Isacch; Laura M. Biondi; María Susana Bó;     Show all 5 Authors
Source:
Emu 2016 v.116 no.4 pp. 428-434
ISSN:
1448-5540
Subject:
Athene cunicularia; aggression; breeding; breeding season; escape behavior; fearfulness; habitats; human-wildlife relations; humans; males; nestlings; nests; reproductive success; rural areas; synanthropes; urban areas
Abstract:
... The behaviour of birds in urban habitats often differs from that of birds in surrounding natural and rural habitats, with the attenuation of fear responses to humans a primary behavioural adaptation to urban life. In breeding birds, fear responses and nest-defence have been linked to reproductive success. We studied the nest-defence behaviour of male Burrowing Owls in rural and urban habitats by m ...
DOI:
10.1071/MU16009

17. Agonistic interactions in raptors of the Pampas region

Author:
Baladrón Alejandro V.,   et al.   ; Pretelli Matías G.;     Show all 2 Author
Source:
Wilson journal of ornithology 2013 v.125 no.3 pp. 650-655
ISSN:
1559-4491
Subject:
Circus; Vanellus chilensis; birds of prey; kleptoparasitism; Argentina; Pampas region
Abstract:
... In this study, we evaluated the interspecific agonistic responses of raptors and non-raptors, elicited by the presence of five raptor species (Circus cinereus, C. buffoni, Rupornis magnirostris, Elanus leucurus, and Geranoaetus melanoleucus) in the Pampas region of Argentina. We registered 62 agonistic interaction events, most of them involving two raptor species (58%). During these events we regi ...
DOI:
10.1676/12-183.1

18. Social networks and ornithology studies: an innovative method for rapidly accessing data on conspicuous bird species

Author:
Alejandro V. Baladrón,   et al.   ; Matilde Cavalli; Juan P. Isacch; María S. Bó; Guadalupe Martínez;     Show all 5 Authors
Source:
Biodiversity and conservation 2014 v.23 no.8 pp. 2127-2134
ISSN:
0960-3115
Subject:
ornithology; Athene cunicularia; nests; surveys; cost effectiveness; habitats; social networks; birds
Abstract:
... We developed an innovative method for finding individuals of a conspicuous species in complex urban habitats. The aim of this study was to detect as many burrowing owl nests as possible in order to develop an ecological and behavioral study. We performed an online survey through the social network, Facebook. The results of this survey allowed us to detect and locate 36 new burrowing owl nests. We ...
DOI:
10.1007/s10531-014-0704-8

19. Body Size and Sexual Dimorphism in the Southernmost Subspecies of the Burrowing Owl (Athene cunicularia cunicularia)

Author:
Baladrón Alejandro V.,   et al.   ; Cavalli Matilde; Isacch Juan P.; Bó María S.; Madrid Enrique;     Show all 5 Authors
Source:
Journal of raptor research 2015 v.49 no.4 pp. 479-485
ISSN:
0892-1016
Subject:
Athene cunicularia; arms (limbs); blood sampling; body size; claws; color; females; geographical variation; males; plumage; sex determination; sexual dimorphism; tail; Argentina; Caribbean; North America
Abstract:
... We studied body size and sexual dimorphism in the southernmost subspecies of the Burrowing Owl (Athene cunicularia cunicularia) at the Pampas of Argentina, and we compared our data with those from other subspecies in the Americas. A total of 58 individuals were captured and their coloration pattern (plumage and bare parts), body linear measurements (wing chord, standard tail length, tarsus length ...
DOI:
10.3356/rapt-49-04-479-485.1

20. Artificial neural networks for short-term load forecasting in microgrids environment

Author:
Carlos Baladrón,   et al.   ; Luis Hernández; Javier M. Aguiar; Belén Carro; Antonio Sánchez-Esguevillas; Jaime Lloret;     Show all 6 Authors
Source:
Energy 2014 v.75 pp. 252-264
ISSN:
0360-5442
Subject:
algorithms; energy; model validation; neural networks
Abstract:
... The adaptation of energy production to demand has been traditionally very important for utilities in order to optimize resource consumption. This is especially true also in microgrids where many intelligent elements have to adapt their behaviour depending on the future generation and consumption conditions. However, traditional forecasting has been performed only for extremely large areas, such as ...
DOI:
10.1016/j.energy.2014.07.065