Karin Maldonado

2025

Impacts of an organophosphate pesticide and water restriction on physiology and immunity in the passerine Zonotrichia capensis

Corvalan, B., Alvarez-Vergara, F., Landaeta, D., Ramirez-Otarola, N., Sanchez-Hernandez, J. C., Maldonado, K., Nespolo, R. F., Newsome, S. D. & Sabat, P., Feb 2025, In: Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology. 288, 110076.

Research output: Contribution to journal › Article › peer-review

2024

The interplay of resource availability and parent foraging strategies on juvenile sparrow individual specialization

Ricote, N., Weinberger, C., Ramírez-Otarola, N., Bustamante, S., Málaga, M. L., Barceló, G., Sabat, P., Newsome, S. D. & Maldonado, K., 2024, (Accepted/In press) In: Journal of Avian Biology.

Research output: Contribution to journal › Article › peer-review

Open Access

2023

A multi-isotope approach reveals seasonal variation in the reliance on marine resources, production of metabolic water, and ingestion of seawater by two species of coastal passerine to maintain water balance

Navarrete, L., Lübcker, N., Alvarez, F., Nespolo, R., Sanchez-Hernandez, J. C., Maldonado, K., Sharp, Z. D., Whiteman, J. P., Newsome, S. D. & Sabat, P., 2023, In: Frontiers in Ecology and Evolution. 11, 1120271.

Research output: Contribution to journal › Article › peer-review

Open Access

3 Scopus citations

Seasonal changes in diet, immune function, and oxidative stress in three passerines inhabiting a Mediterranean climate

Ramírez-Otarola, N., Maldonado, K., Valdés-Ferranty, F., Newsome, S. D. & Sabat, P., Dec 2023, In: Oecologia. 203, 3-4, p. 395-405 11 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

2021

Competition shapes individual foraging and survival in a desert rodent ensemble

Manlick, P. J., Maldonado, K. & Newsome, S. D., Dec 2021, In: Journal of Animal Ecology. 90, 12, p. 2806-2818 13 p.

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Nutritional ecology and ecological immunology in degus: Does early nutrition affect the postnatal development of the immune function?

Ramírez-Otarola, N., Maldonado, K., Cavieres, G., Bozinovic, F. & Sabat, P., 1 Feb 2021, In: Journal of Experimental Zoology Part A: Ecological and Integrative Physiology. 335, 2, p. 239-249 11 p.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Triple Oxygen Isotope Measurements (Δ'¹⁷O) of Body Water Reflect Water Intake, Metabolism, and δ¹⁸O of Ingested Water in Passerines

Sabat, P., Newsome, S. D., Pinochet, S., Nespolo, R., Sanchez-Hernandez, J. C., Maldonado, K., Gerson, A. R., Sharp, Z. D. & Whiteman, J. P., 6 Sep 2021, In: Frontiers in Physiology. 12, 710026.

Research output: Contribution to journal › Article › peer-review

Open Access

4 Scopus citations

2019

Foraging strategies of individual silky pocket mice over a boom–bust cycle in a stochastic dryland ecosystem

Noble, J. D., Collins, S. L., Hallmark, A. J., Maldonado, K., Wolf, B. O. & Newsome, S. D., 1 Jul 2019, In: Oecologia. 190, 3, p. 569-578 10 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Individual diet specialisation in sparrows is driven by phenotypic plasticity in traits related to trade-offs in animal performance

Maldonado, K., Newsome, S. D., Razeto-Barry, P., Ríos, J. M., Piriz, G. & Sabat, P., Jan 2019, In: Ecology Letters. 22, 1, p. 128-137 10 p.

Research output: Contribution to journal › Letter › peer-review

18 Scopus citations

The interplay between ambient temperature and salt intake affects oxidative status and immune responses in a ubiquitous Neotropical passerine, the rufous-collared sparrow

Sabat, P., Bozinovic, F., Contreras-Ramos, C., Nespolo, R. F., Newsome, S. D., Quirici, V., Maldonado, K., Peña-Villalobos, I., Ramirez-Otarola, N. & Sanchez-Hernandez, J. C., Aug 2019, In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology. 234, p. 50-59 10 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

2017

Coping with salt water habitats: Metabolic and oxidative responses to salt intake in the rufous-collared sparrow

Sabat, P., Narváez, C., Peña-Villalobos, I., Contreras, C., Maldonado, K., Sanchez-Hernandez., J. C., Newsome, S. D., Nespolo, R. & Bozinovic, F., 1 Sep 2017, In: Frontiers in Physiology. 8, SEP, 654.

Research output: Contribution to journal › Article › peer-review

Open Access

15 Scopus citations

Temporal variation in isotopic composition of Pygoscelis penguins at Ardley Island, Antarctic: Are foraging habits impacted by environmental change?

Negrete, P., Sallaberry, M., Barceló, G., Maldonado, K., Perona, F., McGill, R. A. R., Quillfeldt, P. & Sabat, P., 1 Apr 2017, In: Polar Biology. 40, 4, p. 903-916 14 p.

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Testing the niche variation hypothesis in a community of passerine birds

Maldonado, K., Bozinovic, F., Newsome, S. D. & Sabat, P., 1 Apr 2017, In: Ecology. 98, 4, p. 903-908 6 p.

Research output: Contribution to journal › Article › peer-review

Open Access

48 Scopus citations

2016

Energetic costs and implications of the intake of plant secondary metabolites on digestive and renal morphology in two austral passerines

Barceló, G., Ríos, J. M., Maldonado, K. & Sabat, P., 1 Jul 2016, In: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 186, 5, p. 625-637 13 p.

Research output: Contribution to journal › Article › peer-review

Open Access

5 Scopus citations

Is maximum food intake in endotherms constrained by net or factorial aerobic scope? Lessons from the leaf-eared mouse

Maldonado, K., Sabat, P., Piriz, G., Bogdanovich, J. M., Nespolo, R. F. & Bozinovic, F., 2016, In: Frontiers in Physiology. 7, DEC, 649.

Research output: Contribution to journal › Article › peer-review

Open Access

4 Scopus citations

2015

Erratum to: Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits (Journal of Comparative Physiology B, (2014), 184, (729-739), 10.1007/s00360-014-0832-1)

Ríos, J. M., Barceló, G. F., Narváez, C., Maldonado, K. & Sabat, P., Apr 2015, In: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 185, 3, p. 367 1 p.

Research output: Contribution to journal › Comment/debate

Open Access

2014

Feeding and digestive responses to fatty acid intake in two South American passerines with different food habits

Ríos, J. M., Barceló, G. F., Narváez, C., Maldonado, K. & Sabat, P., Aug 2014, In: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 184, 6, p. 729-739 11 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

2012

Geographic variation in the association between exploratory behavior and physiology in rufous-collared sparrows

Maldonado, K., van Dongen, W. F. D., Vásquez, R. & Sabat, P., Nov 2012, In: Physiological and Biochemical Zoology. 85, 6, p. 618-624 7 p.

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Phenotypic flexibility in basal metabolic rate is associated with rainfall variability among populations of rufous-collared sparrow

Maldonado, K., Bozinovic, F., Cavieres, G., Fuentes, C. A., Cortés, A. & Sabat, P., Apr 2012, In: Zoology. 115, 2, p. 128-133 6 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

2011

Adaptive cis-regulatory changes may involve few mutations

Razeto-Barry, P. & Maldonado, K., Nov 2011, In: Evolution. 65, 11, p. 3332-3335 4 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Within-species digestive tract flexibility in rufous-collared sparrows and the climatic variability hypothesis

Maldonado, K., Bozinovic, F., Rojas, J. & Sabat, P., Jul 2011, In: Physiological and Biochemical Zoology. 84, 4, p. 377-384 8 p.

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

2010

Between-population differences in digestive flexibility in the olivaceous field mouse

Bozinovic, F., Rojas, J. M., Maldonado, K., Sabat, P. & Naya, D. E., Dec 2010, In: Zoology. 113, 6, p. 373-377 5 p.

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Geographic variation in the repeatability of a personality trait

Van Dongen, W. F. D., Maldonado, K., Sabat, P. & Vásquez, R. A., 2010, In: Behavioral Ecology. 21, 6, p. 1243-1250 8 p.

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

2009

Diet and habitat aridity affect osmoregulatory physiology: An intraspecific field study along environmental gradients in the Rufous-collared sparrow

Sabat, P., Gonzalez-Vejares, S. & Maldonado, K., Mar 2009, In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology. 152, 3, p. 322-326 5 p.

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Physiological responses in rufous-collared sparrows to thermal acclimation and seasonal acclimatization

Maldonado, K. E., Cavieres, G., Veloso, C., Canals, M. & Sabat, P., Apr 2009, In: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 179, 3, p. 335-343 9 p.

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

2006

Osmoregulation and adaptive radiation in the ovenbird genus Cinclodes (Passeriformes: Furnariidae)

Sabat, P., Maldonado, K., Canals, M. & Del Rio, C. M., Oct 2006, In: Functional Ecology. 20, 5, p. 799-805 7 p.

Research output: Contribution to journal › Article › peer-review

Open Access

28 Scopus citations

Osmoregulatory capacity and the ability to use marine food sources in two coastal songbirds (Cinclodes: Furnariidae) along a latitudinal gradient

Sabat, P., Maldonado, K., Fariña, J. M. & Del Rio, C. M., Jun 2006, In: Oecologia. 148, 2, p. 250-257 8 p.

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

2004

Coping with salt without salt glands: Osmoregulatory plasticity in three species of coastal songbirds (ovenbirds) of the genus Cinclodes (Passeriformes: Furnariidae)

Sabat, P., Maldonado, K., Rivera-Hutinel, A. & Farfan, G., Jul 2004, In: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology. 174, 5, p. 415-420 6 p.

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Physiological and biochemical responses to dietary protein in the omnivore passerine Zonotrichia capensis (Emberizidae)

Sabat, P., Sepúlveda-Kattan, E. & Maldonado, K., Feb 2004, In: Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology. 137, 2, p. 391-396 6 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Karin Maldonado, PhD

Research output

Search results