Importance of Algarrobo Trees Prosopis flexuosa for Territory Establishment of Three Seed-Eating Passerine Species in the Central Monte Desert

Ardea ◽  
2021 ◽  
Vol 109 (2) ◽  
Author(s):  
M. Cecilia Sagario ◽  
Víctor R. Cueto
Keyword(s):  
Monte Desert ◽  
Passerine Species ◽  
Seed Eating ◽  
Prosopis Flexuosa

Anthropogenic disturbance impact on the stem growth of Prosopis flexuosa DC forests in the Monte desert of Argentina: A dendroecological approach

2017 ◽  
Vol 42 ◽  
pp. 63-72 ◽  
Author(s):  
Sergio Piraino ◽  
Elena María Abraham ◽  
Martín Ariel Hadad ◽  
Daniel Patón ◽  
Fidel Alejandro Roig Juñent
Keyword(s):  
Anthropogenic Disturbance ◽  
Stem Growth ◽  
Monte Desert ◽  
Prosopis Flexuosa

Dendroecology of Prosopis flexuosa woodlands in the Monte desert: Implications for their management

2005 ◽  
Vol 22 (3) ◽  
pp. 209-213 ◽  
Author(s):  
Pablo E. Villagra ◽  
José A. Boninsegna ◽  
Juan A. Alvarez ◽  
Mariano Cony ◽  
Erica Cesca ◽  
...  
Keyword(s):  
Monte Desert ◽  
Prosopis Flexuosa

scholarly journals Assessing the Sensitivity of Riparian Algarrobo Dulce (Prosopis flexuosa DC) Radial Growth to Hydrological Changes

2016 ◽  
Vol 43 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Sergio Piraino ◽  
Fidel Alejandro Roig
Keyword(s):  
Radial Growth ◽  
Environmental Changes ◽  
Precipitation Amount ◽  
Summer Precipitation ◽  
Late Summer ◽  
Monte Desert ◽  
Hydrological Changes ◽  
Tightly Coupled ◽  
Prosopis Flexuosa ◽  
Ecological Importance

Abstract Ecotones, as for example riparian zones, have long interested ecologists, due to their potential role in generating species biodiversity and evolutionary novelty, as well as their sensitivity to environmental changes. Along riparian areas, vegetation is recognized for its ecological importance in several ecosystemic processes. In the Central Monte Desert (central-west Argentina), Prosopis flexuosa grows in territories characterized by a permanent access to water reservoirs, e.g. along riverbanks, where the species forms the classic gallery forests. Despite the ecosystemic role of the different Prosopis species distributed in arid lands, thus far no analysis has been conducted regarding the relation between their radial growth and hydrological changes, namely streamflow variability, in riparian settings. To fill this gap of knowledge, we performed a dendrochronological analysis considering several riparian P. flexuosa trees differing in their spatial position in relation to the riverbank. Pointer years, correlation function, and regression analyses show differences in the dendrohydrological signal of the studied species, probably function of tree distance from the river. In this sense, radial growth of trees distributed near the riverbank is tightly coupled to spring-summer (September to March) stream-flow variability, whereas for farthest trees the ring development is driven by a combination of winter and spring river discharge and late-summer precipitation amount. The presented results demonstrate the potentiality of P. flexuosa, and in a broader sense of the Prosopis genus, in dendrohydrological studies.

scholarly journals Effects of livestock grazing on flocks of seed-eating birds in the central Monte desert, Argentina

2019 ◽  
Vol 97 (7) ◽  
pp. 606-611
Author(s):  
A. Zarco ◽  
V.R. Cueto ◽  
M.C. Sagario ◽  
L. Marone
Keyword(s):  
Structural Characteristics ◽  
Resource Depletion ◽  
Cattle Grazing ◽  
Livestock Grazing ◽  
Foraging Efficiency ◽  
Monte Desert ◽  
Management Actions ◽  
Animal Populations ◽  
Nuclear Species ◽  
Seed Eating

Animal populations often decline due to habitat disturbance, but the initial response of organisms to human-induced environmental change is usually behavioral. Intra- and inter-specific interactions can restrict or facilitate access to resources, resulting in changes to individual fitness, and resource depletion may affect the frequency and strength of interactions. In birds, it is often assumed that feeding in groups increases foraging efficiency. We assessed how the reduction of seed resources provoked by cattle grazing affected different properties of seed-eating bird flocks in woodlands having the same structural characteristics but differing in seed abundance. Under lower availability of grass seeds (i.e., under grazing), flocks were smaller and less rich and birds showed a lower flocking propensity. This pattern could be explained by three non-exclusive hypotheses. Food reduction caused by grazing (i) decreases the number of seed-eating birds and concomitantly generates smaller flocks; (ii) reduces the density of nuclear species, decreasing the group cohesion in large flocks; (iii) makes large flocks less attractive by increasing individual competence for food. Our results provide evidence that cattle grazing affect the interactions of seed-eating birds and suggest the importance of understanding flocking behavior to bring about management actions.

Diet switching of seed-eating birds wintering in grazed habitats of the central Monte Desert, Argentina

The Condor ◽  
2017 ◽  
Vol 119 (4) ◽  
pp. 673-682 ◽  
Author(s):  
Luis Marone ◽  
Matías Olmedo ◽  
Daniela Y. Valdés ◽  
Agustín Zarco ◽  
Javier Lopez de Casenave ◽  
...  
Keyword(s):  
Monte Desert ◽  
Diet Switching ◽  
Seed Eating

Structure and growth rate of Prosopis flexuosa woodlands in two contrasting environments of the central Monte desert

2005 ◽  
Vol 60 (2) ◽  
pp. 187-199 ◽  
Author(s):  
P.E. Villagra ◽  
R. Villalba ◽  
J.A. Boninsegna
Keyword(s):  
Growth Rate ◽  
Monte Desert ◽  
Prosopis Flexuosa

scholarly journals Relationships between Prosopis flexuosa (Fabaceae) and cattle in the Monte desert: Seeds, seedlings and saplings on cattle-use site classes

2011 ◽  
Vol 84 (2) ◽  
pp. 289-299 ◽  
Author(s):  
CLAUDIA M CAMPOS ◽  
VALERIA E CAMPOS ◽  
ARNALDO MONGEAUD ◽  
CARLOS E BORGHI ◽  
CLAUDIA DE LOS RÍOS ◽  
...  
Keyword(s):  
Monte Desert ◽  
Prosopis Flexuosa ◽  
Site Classes

Phenotypic plasticity of the coarse root system of Prosopis flexuosa, a phreatophyte tree, in the Monte Desert (Argentina)

2009 ◽  
Vol 330 (1-2) ◽  
pp. 447-464 ◽  
Author(s):  
Aranzazú Guevara ◽  
Carla Valeria Giordano ◽  
Julieta Aranibar ◽  
Marcelo Quiroga ◽  
Pablo E. Villagra
Keyword(s):  
Phenotypic Plasticity ◽  
Root System ◽  
Monte Desert ◽  
Coarse Root ◽  
Prosopis Flexuosa
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