نتایج جستجو برای: disturbed

تعداد نتایج: 15849  

2017
Asa Johannesen Alison M. Dunn Lesley J. Morrell

Predators use olfactory cues moved within water and air to locate prey. Because prey aggregations may produce more cue and be easier to detect, predation could limit aggregation size. However, disturbance in the flow may diminish the reliability of odour as a prey cue, impeding predator foraging success and efficiency. We explore how different cue concentrations (as a proxy for prey group size)...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Andrew B Davies Marc Ancrenaz Felicity Oram Gregory P Asner

The conservation of charismatic and functionally important large species is becoming increasingly difficult. Anthropogenic pressures continue to squeeze available habitat and force animals into degraded and disturbed areas. Ensuring the long-term survival of these species requires a well-developed understanding of how animals use these new landscapes to inform conservation and habitat restorati...

Journal: :Ecology 2012
Nathan G Swenson James C Stegen Stuart J Davies David L Erickson Jimena Forero-Montaña Allen H Hurlbert W John Kress Jill Thompson María Uriarte S Joseph Wright Jess K Zimmerman

The degree to which turnover in biological communities is structured by deterministic or stochastic factors and the identities of influential deterministic factors are fundamental, yet unresolved, questions in ecology. Answers to these questions are particularly important for projecting the fate of forests with diverse disturbance histories worldwide. To uncover the processes governing turnover...

2015
Gary P. Aronsen Melanie M. Beuerlein David P. Watts Richard G. Bribiescas

Non-invasive measurement of urinary cortisol is a proven method of evaluating the impact of environmental stressors on wild primates. Variation in cortisol concentrations can reflect physiological stress, and prolonged elevation of circulating cortisol can significantly affect individual and population-level health. In a previous study, we found that urinary cortisol concentrations in grey-chee...

2014
Naja Hulvej Rod Meena Kumari Theis Lange Mika Kivimäki Martin Shipley Jane Ferrie

BACKGROUND Both sleep duration and sleep quality are related to future health, but their combined effects on mortality are unsettled. We aimed to examine the individual and joint effects of sleep duration and sleep disturbances on cause-specific mortality in a large prospective cohort study. METHODS We included 9,098 men and women free of pre-existing disease from the Whitehall II study, UK. ...

Journal: :Arteriosclerosis 1988
M Modan H Halkin A Lusky P Segal Z Fuchs A Chetrit

Plasma very low density lipoprotein (VLDL) cholesterol and triglyceride, low density lipoprotein (LDL) cholesterol and triglyceridea, high density lipoprotein (HDL) cholesterol, glucose and insulin response (sums of 1- and 2-hour postload oral glucose levels), body mass index (BMI), and blood pressure were determined in a representative sample (n = 542) of the adult Israeli Jewish population. P...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2016
J C Oliveira I C G Vieira A S Almeida C A Silva

The goal of this study is to analyze the floristic patterns and the structure of disturbed and undisturbed upland forests, in Permanent Preservation Areas (PPAs) along the Moju river, in the Brazilian state of Pará. Trees with a diameter equal to or larger than 10cm at 1.30m from the ground (DBH) ≥10cm were analyzed for the upper stratum. For the middle stratum, individuals with DBH between 4.9...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2009
Pia Sethi Henry F Howe

Hunting of hornbills by tribal communities is widespread in logged foothill forests of the Indian Eastern Himalaya. We investigated whether the decline of hornbills has affected the dispersal and recruitment of 3 large-seeded tree species. We hypothesized that 2 low-fecundity tree species, Chisocheton paniculatus and Dysoxylum binectariferum (Meliaceae) bearing arillate fruits, are more dispers...

2004

Problems in the operation of a hospital unit operating in the context of an integrated community treatment program in New Zealand are identified and discussed by a locum tenans psychiatrist. The excessive use of high dose neuroleptics, loss of therapeutic focus, and profoundly disturbed flow of information emerge as signal elements in a disturbed and disturbing counter-therapeutic milieu.

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2015
Lasse Bach Steffensen Martin Bødtker Mortensen Mads Kjolby Mette Kallestrup Hagensen Claus Oxvig Jacob Fog Bentzon

OBJECTIVE Atherosclerosis develops initially at branch points and in areas of high vessel curvature. Moreover, experiments in hypercholesterolemic mice have shown that the introduction of disturbed flow in straight, atherosclerosis-resistant arterial segments turns them highly atherosclerosis susceptible. Several biomechanical mechanisms have been proposed, but none has been demonstrated. In th...

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