keyword
MENU ▼
Read by QxMD icon Read
search

Behavioral ecology

keyword
https://www.readbyqxmd.com/read/28441412/the-role-of-climate-and-environmental-variables-in-structuring-bird-assemblages-in-the-seasonally-dry-tropical-forests-sdtfs
#1
Gabriela Silva Ribeiro Gonçalves, Pablo Vieira Cerqueira, Leandro Schlemmer Brasil, Marcos Pérsio Dantas Santos
Understanding the processes that influence species diversity is still a challenge in ecological studies. However, there are two main theories to discuss this topic, the niche theory and the neutral theory. Our objective was to understand the importance of environmental and spatial processes in structuring bird communities within the hydrological seasons in dry forest areas in northeastern Brazil. The study was conducted in two National Parks, the Serra da Capivara and Serra das Confusões National Parks, where 36 areas were sampled in different seasons (dry, dry/rainy transition, rainy, rainy/dry transition), in 2012 and 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28439473/the-behavioral-response-of-prey-fish-to-predators-the-role-of-predator-size
#2
Zhong-Hua Tang, Qing Huang, Hui Wu, Lu Kuang, Shi-Jian Fu
Predation is one of the key factors governing patterns in natural systems, and adjustments of prey behaviors in response to a predator stimulus can have important ecological implications for wild fish. To investigate the effects of predators on the behavior of prey fish and to test whether the possible effects varied with predator size, black carp (Mylopharyngodon piceus) and snakehead (Channa argus) (a size-matched predator treatment with a similar body size to prey fish and a larger predator treatment with approximately 2...
2017: PeerJ
https://www.readbyqxmd.com/read/28437693/an-assessment-of-the-social-cognitive-predictors-of-exclusive-breastfeeding-behavior-using-the-health-action-process-approach
#3
J L Martinez-Brockman, F M Shebl, N Harari, R Pérez-Escamilla
RATIONALE: In the United States rates of exclusive breastfeeding duration remain exceedingly low. Exclusive breastfeeding is a complex learned behavior that is influenced by social cognitive, interpersonal, and structural factors. Interventions are needed that address factors at multiple levels of the social-ecological model. This study was designed to examine the social cognitive predictors of exclusive breastfeeding behavior in a sample of low-income women attending the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) breastfeeding peer counseling program and enrolled in the Lactation Advice Through Texting Can Help (LATCH) study...
April 12, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28437589/the-roles-of-ecology-behavior-and-effective-population-size-in-the-evolution-of-a-community
#4
Chih-Ming Hung, Sergei V Drovetski, Robert M Zink
Organismal traits such as ecological specialization and migratory behavior may affect colonization potential, population persistence, and degree of isolation, factors that determine the composition and genetic structure of communities. However, studies focusing on community assembly rarely consider these factors jointly. We sequenced 16 nuclear and one mitochondrial genes from Caucasian and European populations of 30 forest-dwelling avian species that represent diverse ecological (specialist-generalist) and behavioral (migratory-resident) backgrounds...
April 24, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28434861/representation-of-multiple-body-parts-in-the-missing-hand-territory-of-congenital-one-handers
#5
Avital Hahamy, Scott N Macdonald, Fiona van den Heiligenberg, Paullina Kieliba, Uzay Emir, Rafael Malach, Heidi Johansen-Berg, Peter Brugger, Jody C Culham, Tamar R Makin
Individuals born without one hand (congenital one-handers) provide a unique model for understanding the relationship between focal reorganization in the sensorimotor cortex and everyday behavior. We previously reported that the missing hand's territory of one-handers becomes utilized by its cortical neighbor (residual arm representation), depending on residual arm usage in daily life to substitute for the missing hand's function [1, 2]. However, the repertoire of compensatory behaviors may involve utilization of other body parts that do not cortically neighbor the hand territory...
April 19, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28431195/feeding-behavior-and-activity-budget-of-the-southern-yellow-cheeked-crested-gibbons-nomascus-gabriellae-in-a-lowland-tropical-forest
#6
Thanh H Bach, Jin Chen, Minh D Hoang, Kingsly C Beng, Van T Nguyen
The southern yellow-cheeked crested gibbon (Nomascus gabriellae), an endangered species native to Vietnam and Cambodia, lives exclusively in undisturbed tropical forests and depends primarily on ripe fruit for food. Although this species is highly threatened, its ecology and conservation status remain relatively unknown. In order to understand how this heavily frugivorous primate adapts to the seasonal fluctuation of fruit resources in the forest, we collected feeding behavior and ranging activity data on one group of southern yellow-cheeked crested gibbons in Cat Tien National Park, Vietnam, over 1-year period...
April 21, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28429369/variation-in-brain-anatomy-in-frogs-and-its-possible-bearing-on-their-locomotor-ecology
#7
Adriana S Manzano, Anthony Herrel, Anne-Claire Fabre, Virginia Abdala
Despite the long-standing interest in the evolution of the brain, relatively little is known about variation in brain anatomy in frogs. Yet, frogs are ecologically diverse and, as such, variation in brain anatomy linked to differences in lifestyle or locomotor behavior can be expected. Here we present a comparative morphological study focusing on the macro- and micro-anatomy of the six regions of the brain and its choroid plexus: the olfactory bulbs, the telencephalon, the diencephalon, the mesencephalon, the rhombencephalon, and the cerebellum...
April 20, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28429170/comparison-of-energy-balance-between-two-different-sized-groups-of-japanese-macaques-macaca-fuscata-yakui
#8
Yosuke Kurihara, Goro Hanya
Quantifying the energy balance is essential for testing socio-ecological models. To reveal costs and benefits of group living in Japanese macaques from the perspective of feeding competition, Kurihara and Hanya (Am J Primatol 77:986-1000, 2015) previously compared feeding behavior between two different-sized groups of macaques (larger group 30-35 individuals; smaller group 13-15 individuals) in the coastal forest of Yakushima, Japan. The results suggested that the larger group exhibited greater feeding effort because of intragroup scramble competition and that the smaller group suffered from higher travel costs, possibly owing to intergroup contest competition...
April 20, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28428873/a-maize-landrace-that-emits-defense-volatiles-in-response-to%C3%A2-herbivore-eggs-possesses-a-strongly-inducible-terpene-synthase-gene
#9
Amanuel Tamiru, Toby J A Bruce, Annett Richter, Christine M Woodcock, Charles A O Midega, Jörg Degenhardt, Segenet Kelemu, John A Pickett, Zeyaur R Khan
Maize (Zea mays) emits volatile terpenes in response to insect feeding and egg deposition to defend itself against harmful pests. However, maize cultivars differ strongly in their ability to produce the defense signal. To further understand the agroecological role and underlying genetic mechanisms for variation in terpene emission among maize cultivars, we studied the production of an important signaling component (E)-caryophyllene in a South American maize landrace Braz1006 possessing stemborer Chilo partellus egg inducible defense trait, in comparison with the European maize line Delprim and North American inbred line B73...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428858/genetic-diversity-and-spatial-structure-of-the-rufous-throated-antbird-gymnopithys-rufigula-an-amazonian-obligate-army-ant-follower
#10
Juliana Menger, Klaus Henle, William E Magnusson, Antonella Soro, Martin Husemann, Martin Schlegel
Amazonian understory antbirds are thought to be relatively sedentary and to have limited dispersal ability; they avoid crossing forest gaps, and even narrow roads through a forest may limit their territories. However, most evidence for sedentariness in antbirds comes from field observations and plot-based recapture of adult individuals, which do not provide evidence for lack of genetic dispersal, as this often occurs through juveniles. In this study, we used microsatellite markers and mitochondrial control-region sequences to investigate contemporary and infer historical patterns of genetic diversity and structure of the Rufous-throated Antbird (Gymnopithys rufigula) within and between two large reserves in central Amazonia...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428394/beyond-the-roots-of-human-inaction-fostering-collective-effort-toward-ecosystem-conservation
#11
REVIEW
Elise Amel, Christie Manning, Britain Scott, Susan Koger
The term "environmental problem" exposes a fundamental misconception: Disruptions of Earth's ecosystems are at their root a human behavior problem. Psychology is a potent tool for understanding the external and internal drivers of human behavior that lead to unsustainable living. Psychologists already contribute to individual-level behavior-change campaigns in the service of sustainability, but attention is turning toward understanding and facilitating the role of individuals in collective and collaborative actions that will modify the environmentally damaging systems in which humans are embedded...
April 21, 2017: Science
https://www.readbyqxmd.com/read/28428010/a-strategy-of-faster-movements-used-by-elderly-humans-to-lift-objects-of-increasing-weight-in-ecological-context
#12
Thomas Hoellinger, Joseph McIntyre, Lena Jami, Sylvain Hanneton, Guy Cheron, Agnes Roby-Brami
It is not known whether, during the course of ageing, changes occur in the motor strategies used by the CNS for lifting objects of different weights. Here, we analysed the kinematics of object-lifting in two different healthy groups (young and elderly people) plus one well known deafferented patient (GL). The task was to reach and lift onto a shelf an opaque cylindrical object with changing weight. The movements of the hand and object were recorded with electromagnetic sensors. In an ecological context (i.e...
April 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28427115/personality-assessment-and-model-comparison-with-behavioral-data-a-statistical-framework-and-empirical-demonstration-with-bonobos-pan-paniscus
#13
Jordan S Martin, Scott A Suarez
Interest in quantifying consistent among-individual variation in primate behavior, also known as personality, has grown rapidly in recent decades. Although behavioral coding is the most frequently utilized method for assessing primate personality, limitations in current statistical practice prevent researchers' from utilizing the full potential of their coding datasets. These limitations include the use of extensive data aggregation, not modeling biologically relevant sources of individual variance during repeatability estimation, not partitioning between-individual (co)variance prior to modeling personality structure, the misuse of principal component analysis, and an over-reliance upon exploratory statistical techniques to compare personality models across populations, species, and data collection methods...
April 20, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28426763/individual-based-modelling-of-population-growth-and-diffusion-in-discrete-time
#14
Natalie Tkachenko, John D Weissmann, Wesley P Petersen, George Lake, Christoph P E Zollikofer, Simone Callegari
Individual-based models (IBMs) of human populations capture spatio-temporal dynamics using rules that govern the birth, behavior, and death of individuals. We explore a stochastic IBM of logistic growth-diffusion with constant time steps and independent, simultaneous actions of birth, death, and movement that approaches the Fisher-Kolmogorov model in the continuum limit. This model is well-suited to parallelization on high-performance computers. We explore its emergent properties with analytical approximations and numerical simulations in parameter ranges relevant to human population dynamics and ecology, and reproduce continuous-time results in the limit of small transition probabilities...
2017: PloS One
https://www.readbyqxmd.com/read/28426416/how-does-host-ecology-influence-sampling-effort-in-parasite-diversity-estimates-a-case-study-using-neotropical-freshwater-fishes
#15
Fábio Hideki Yamada, Ricardo Massato Takemoto
Accurately estimating biodiversity is fundamental to ecological understanding and prediction. Helminthes are often neglected in biodiversity estimates and when included are often underestimated. Here we examine how sampling effort affects estimates of parasite diversity in an assemblage of freshwater fish from a floodplain in Brazil. We also examine how ecological and behavioral factors influence the sampling effort necessary to accurately estimate the parasite diversity associated with a fish species. We use our dataset to suggest that host species with wide geographic distribution (i...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28426353/potential-risks-of-ecological-momentary-assessment-among-persons-who-inject-drugs
#16
Alexis M Roth, John Rossi, Jesse L Goldshear, Quan Truong, Richard F Armenta, Stephen E Lankenau, Richard S Garfein, Janie Simmons
BACKGROUND: Ecological momentary assessment (EMA)-which often involves brief surveys delivered via mobile technology-has transformed our understanding of the individual and contextual micro-processes associated with legal and illicit drug use. However, little empirical research has focused on participant's perspective on the probability and magnitude of potential risks in EMA studies. OBJECTIVES: To garner participant perspectives on potential risks common to EMA studies of illicit drug use...
June 7, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28425174/costs-and-benefits-of-sub-lethal-drosophila-c-virus-infection
#17
Vanika Gupta, Charlotte Stewart, Samuel S C Rund, Katy Monteith, Pedro F Vale
Viruses are major evolutionary drivers of insect immune systems. Much of our knowledge of insect immune responses derives from experimental infections using the fruit fly Drosophila melanogaster. Most experiments, however, employ lethal pathogen doses through septic injury, frequently overwhelming host physiology. While this approach has revealed several immune mechanisms, it is less informative about the fitness costs hosts may experience during infection in the wild. Using both systemic and oral infection routes we find that even apparently benign, sub-lethal infections with the horizontally transmitted Drosophila C Virus (DCV) can cause significant physiological and behavioral morbidity that is relevant for host fitness...
April 20, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28424643/oral-storytelling-as-evidence-of-pedagogy-in-forager-societies
#18
Michelle Scalise Sugiyama
Teaching is reportedly rare in hunter-gatherer societies, raising the question of whether it is a species-typical trait in humans. A problem with past studies is that they tend to conceptualize teaching in terms of Western pedagogical practices. In contrast, this study proceeds from the premise that teaching requires the ostensive manifestation of generalizable knowledge: the teacher must signal intent to share information, indicate the intended recipient, and transmit knowledge that is applicable beyond the present context...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28422704/influencing-factors-on-high-risk-sexual-behaviors-in-young-people-an-ecological-perspective
#19
Hoda Arabi-Mianrood, Zeinab Hamzehgardeshi, Elham Khoori, Mahmood Moosazadeh, Zohreh Shahhosseini
Background In recent years, high-risk sexual behaviors due to their negative consequences both for the individual and society have received more attention than other high-risk behaviors. Objective The aim of this study was to review the influencing factors of high-risk sexual behaviors among young people from an ecological point of view. Methods This review was conducted through searching databases including PubMed, Web of Science, Scopus, Google Scholar and the Cochrane Library with keywords such as sexual risk-taking behavior, high-risk sex, unprotected sex and unsafe sex...
April 19, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28418803/an-ecological-momentary-assessment-of-primiparous-women-s-breastfeeding-behavior-and-problems-from-birth-to-8-weeks
#20
Jill R Demirci, Debra L Bogen
BACKGROUND: Primiparous women are at risk for early, unintended breastfeeding reduction and cessation. Breastfeeding patterns that contribute to these outcomes require further exploration. Research aim: This study aimed to describe early, "real-time" breastfeeding behaviors and perceived problems of primiparous women. METHODS: First-time mothers intending to exclusively breastfeed downloaded a commercial infant-feeding app during their postpartum hospitalization...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
keyword
keyword
19618
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"