Browsing by Subject "Seasons"
Now showing items 1-18 of 18
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Body Mass and Tail Girth Predict Hibernation Expression in Captive Dwarf Lemurs.
(Physiological and biochemical zoology : PBZ, 2022-03)AbstractHibernation, a metabolic strategy, allows individuals to reduce energetic demands in times of energetic deficits. Hibernation is pervasive in nature, occurring in all major mammalian lineages and geographical regions; ... -
Body temperature and thermal environment in a generalized arboreal anthropoid, wild mantled howling monkeys (Alouatta palliata).
(Am J Phys Anthropol, 2014-05)Free-ranging primates are confronted with the challenge of maintaining an optimal range of body temperatures within a thermally dynamic environment that changes daily, seasonally, and annually. While many laboratory studies ... -
Comparing habitat suitability and connectivity modeling methods for conserving pronghorn migrations.
(PloS one, 2012-01)Terrestrial long-distance migrations are declining globally: in North America, nearly 75% have been lost. Yet there has been limited research comparing habitat suitability and connectivity models to identify migration corridors ... -
Drinking from arboreal water sources by mantled howling monkeys (Alouatta palliata Gray).
(Folia Primatol (Basel), 1978)Despite occasional trips to the ground and feeding in trees whose canopies touched the river, mantled howling monkeys were never seen to drink from any ground water. Drinking from arboreal cisterns was observed, but only ... -
Epidemiology, seasonality, and predictors of outcome of AIDS-associated Penicillium marneffei infection in Ho Chi Minh City, Viet Nam.
(Clin Infect Dis, 2011-04-01)BACKGROUND: Penicillium marneffei is an important human immunodeficiency virus (HIV)-associated opportunistic pathogen in Southeast Asia. The epidemiology and the predictors of penicilliosis outcome are poorly understood. ... -
Hydraulic redistribution of soil water by roots affects whole-stand evapotranspiration and net ecosystem carbon exchange.
(New Phytol, 2010-07)*Hydraulic redistribution (HR) of water via roots from moist to drier portions of the soil occurs in many ecosystems, potentially influencing both water use and carbon assimilation. *By measuring soil water content, sap ... -
Mechanical defenses in leaves eaten by Costa Rican howling monkeys (Alouatta palliata).
(Am J Phys Anthropol, 2006-01)Primate species often eat foods of different physical properties. This may have implications for tooth structure and wear in those species. The purpose of this study was to examine the mechanical defenses of leaves eaten ... -
Mechanical defenses in leaves eaten by Costa Rican howling monkeys (Alouatta palliata).
(Am J Phys AnthropolAm J Phys AnthropolAm J Phys Anthropol, 2006-01)Primate species often eat foods of different physical properties. This may have implications for tooth structure and wear in those species. The purpose of this study was to examine the mechanical defenses of leaves eaten ... -
Modifying the ‘pulse-reserve’ paradigm for deserts of North America: precipitation pulses, soil water and plant responses
(Oecologia, 2004)The 'pulse-reserve' conceptual model--arguably one of the most-cited paradigms in aridland ecology--depicts a simple, direct relationship between rainfall, which triggers pulses of plant growth, and reserves of carbon and ... -
Plant responses to precipitation in desert ecosystems: integrating functional types, pulses, thresholds, and delays
(Oecologia, 2004)The 'two-layer' and 'pulse-reserve' hypotheses were developed 30 years ago and continue to serve as the standard for many experiments and modeling studies that examine relationships between primary productivity and rainfall ... -
Q Fever, Scrub Typhus, and Rickettsial Diseases in Children, Kenya, 2011-2012.
(Emerg Infect Dis, 2016-05)To increase knowledge of undifferentiated fevers in Kenya, we tested paired serum samples from febrile children in western Kenya for antibodies against pathogens increasingly recognized to cause febrile illness in Africa. ... -
Relative growth of the limbs and trunk in sifakas: heterochronic, ecological, and functional considerations.
(Am J Phys Anthropol, 1993-12)Limb, trunk, and body weight measurements were obtained for growth series of Milne-Edwards's diademed sifaka, Propithecus diadema edwardsi, and the golden-crowned sifaka, Propithecus tattersalli. Similar measures were obtained ... -
Resistance of African tropical forests to an extreme climate anomaly.
(Proceedings of the National Academy of Sciences of the United States of America, 2021-05)The responses of tropical forests to environmental change are critical uncertainties in predicting the future impacts of climate change. The positive phase of the 2015-2016 El Niño Southern Oscillation resulted in unprecedented ... -
Restoring diversity after cattail expansion: disturbance, resilience, and seasonality in a tropical dry wetland.
(Ecol Appl, 2011-04)As the human footprint expands, ecologists and resource managers are increasingly challenged to explain and manage abrupt ecosystem transformations (i.e., regime shifts). In this study, we investigated the role of a mechanical ... -
Seasonal variations in air pollution particle-induced inflammatory mediator release and oxidative stress.
(Environmental health perspectives, 2005-08)Health effects associated with particulate matter (PM) show seasonal variations. We hypothesized that these heterogeneous effects may be attributed partly to the differences in the elemental composition of PM. Normal human ... -
Selective expression of insulin-like growth factor II in the songbird brain.
(J Neurosci, 1997-09-15)Neuronal replacement occurs in the forebrain of juvenile and adult songbirds. To address the molecular processes that govern this replacement, we cloned the zebra finch insulin-like growth factor II (IGF-II) cDNA, a factor ... -
Temperature and Precipitation Associate With Ischemic Stroke Outcomes in the United States.
(Journal of the American Heart Association, 2018-11)Background There is disagreement in the literature about the relationship between strokes and seasonal conditions. We sought to (1) describe seasonal patterns of stroke in the United States, and (2) determine the relationship ... -
Thyroid hormone fluctuations indicate a thermoregulatory function in both a tropical (Alouatta palliata) and seasonally cold-habitat (Macaca fuscata) primate.
(Am J Primatol, 2017-11)Thyroid hormones boost animals' basal metabolic rate and represent an important thermoregulatory pathway for mammals that face cold temperatures. Whereas the cold thermal pressures experienced by primates in seasonal habitats ...
