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Behavioral ecology

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https://www.readbyqxmd.com/read/29780337/making-sense-of-biodiversity-the-affordances-of-systems-ecology
#1
REVIEW
Erik Andersson, Timon McPhearson
We see two related, but not well-linked fields that together could help us better understand biodiversity and how it, over time, provides benefits to people. The affordances approach in environmental psychology offers a way to understand our perceptual appraisal of landscapes and biodiversity and, to some extent, intentional choice or behavior, i.e., a way of relating the individual to the system s/he/it lives in. In the field of ecology, organism-specific functional traits are similarly understood as the physiological and behavioral characteristics of an organism that informs the way it interacts with its surroundings...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29777968/ecological-momentary-assessment-of-food-perceptions-and-eating-behavior-using-a-novel-phone-application-in-adults-with-or-without-obesity
#2
Kholoud Alabduljader, Marion Cliffe, Francesco Sartor, Gabriele Papini, W Miles Cox, Hans-Peter Kubis
We developed a smart phone application to measure participants' food-reward perceptions and eating behavior in their naturalistic environment. Intensity ratings (0 - not at all to 10 - very strongly) of perceived anticipation of food (wanting) and food enjoyment at endpoint of intake (liking) were recorded as they occurred over a period of 14 days. Moreover, food craving trait, implicit and explicit attitude towards healthy food, and body composition were assessed. 53 participants provided complete data. Participants were classified by percentage of body fat; 33 participants with lower body fat (L-group) and 20 with higher body fat (H-group; ≥25% body fat for males and ≥32% for females)...
May 12, 2018: Eating Behaviors
https://www.readbyqxmd.com/read/29776923/environmental-adaptability-for-quorum-sensing-regulating-iron-uptake-during-biofilm-formation-in-paracoccus-denitrificans
#3
Yang Zhang, Jie Gao, Lushan Wang, Shuangjiang Liu, Zhihui Bai, Xuliang Zhuang, Guoqiang Zhuang
Paracoccus denitrificans is a valuable model organism due to its versatile respiration capability and bioenergetic flexibility, both of which are critical to its survival in different environments. Quorum sensing (QS) plays a crucial role in the regulation of many cell functions; however, whether QS systems play a role in P. denitrificans is unknown. In this study, we demonstrated that iron uptake systems in P. denitrificans were directly regulated by a newly identified QS system. Genes coding for TonB-dependent systems, which transport chelated iron, were transcribed at higher levels in the QS-defective mutants...
May 18, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29770582/predator-performance-inferring-predator-switching-behaviors-based-on-nutritional-indices-in-a-coccinellid-psylla-aphid-system
#4
M Amin Jalali, M Reza Mehrnejad, Peter C Ellsworth, Fateme Ranjbar, Mahdi Ziaaddini
BACKGROUND: Knowledge on the nutritional ecology of predatory coccinellids is important to selection of efficient biocontrol agents. We examined five species common to pistachio orchards and nutritional indices when fed on the key psylla pest of the system, Agonoscena pistaciae, in contrast to an alternative prey common on herbaceous plants in orchards, Aphis gossypii. RESULTS: Feeding studies revealed that Oenopia conglobata contaminata and Adalia bipunctata may be more efficient as biocontrol agents for A...
May 16, 2018: Pest Management Science
https://www.readbyqxmd.com/read/29770376/field-studies-reveal-functions-of-chemical-mediators-in-plant-interactions
#5
REVIEW
Meredith C Schuman, Ian T Baldwin
Plants are at the trophic base of most ecosystems, embedded in a rich network of ecological interactions in which they evolved. While their limited range and speed of motion precludes animal-typical behavior, plants are accomplished chemists, producing thousands of specialized metabolites which may function to convey information, or even to manipulate the physiology of other organisms. Plants' complex interactions and their underlying mechanisms are typically dissected within the controlled environments of growth chambers and glasshouses, but doing so introduces conditions alien to plants evolved in natural environments, such as being pot-bound, and receiving artificial light with a spectrum very different from sunlight...
May 17, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/29767414/variation-in-reproduction-of-the-smallest-bodied-primate-radiation-the-mouse-lemurs-microcebus-spp-a-synopsis
#6
Mamy Rina Evasoa, Ute Radespiel, Alida F Hasiniaina, Solofonirina Rasoloharijaona, Blanchard Randrianambinina, Romule Rakotondravony, Elke Zimmermann
Reproduction is a fundamental trait in the life history of any species and contributes to species diversity and evolution. Here, we aim to review the barely known variation in reproductive patterns of the smallest-bodied primate radiation, the Malagasy mouse lemurs, focusing on twelve species of four phylogenetic clades. We present a new reproductive field dataset collected between May and November 1996-2016 for nine species (Microcebus murinus, M. myoxinus, M. ravelobensis, M. bongolavensis, M. danfossi, M...
May 16, 2018: American Journal of Primatology
https://www.readbyqxmd.com/read/29764942/could-positive-feedback-enable-bacterial-pheromone-signaling-to-coordinate-behaviors-in-response-to-heterogeneous-environmental-cues
#7
Eric V Stabb
Pheromone signaling (PS) underlies many important bacterial behaviors, yet its ecological functions remain unresolved. Because pheromone-mediated behaviors require high cell density, the term "quorum sensing" is widely used to describe and make sense of PS. However, while this term has unified and popularized the field, bacterial PS clearly has roles beyond census taking, and the complexities of PS circuits indicate broader functional capacities. Two common features of bacterial PS are its regulation in response to environmental conditions and positive-feedback loops...
May 15, 2018: MBio
https://www.readbyqxmd.com/read/29759008/thin-slices-of-athletes-nonverbal-behavior-give-away-game-location-testing-the-territoriality-hypothesis-of-the-home-game-advantage
#8
Philip Furley, Geoffrey Schweizer, Daniel Memmert
The present research investigated whether perceivers could detect who is playing at home or away in soccer matches based on thin slices of professional (Experiment 1) and amateur (Experiment 3) athletes' nonverbal behavior prior to the match and whether perceivers rated athletes playing at home relatively higher on behavioral dimensions (Experiments 2 and 3) linked to territoriality. In Experiment 1 ( N = 80), participants watched short videos depicting soccer players prior to a UEFA Champions League match and rated whether athletes were more likely to be playing at home or away...
April 2018: Evolutionary Psychology: An International Journal of Evolutionary Approaches to Psychology and Behavior
https://www.readbyqxmd.com/read/29758249/are-laboratory-studies-on-behavior-of-troglobitic-species-always-trustful-a-case-study-with-an-isopod-from-brazil
#9
Ana Paula Bueno da Silva, Isabel Pires Mascarenhas Ribeiro de Oliveira, Rafaela Bastos-Pereira, Rodrigo Lopes Ferreira
There is a huge lack of information regarding the natural history of subterranean species, particularly focusing on aspects of the behavioral ecology of Brazilian cave fauna. In the present work, we aimed to describe and evaluate the behavioral repertoire of Xangoniscus itacarambiensis (Isopoda, Styloniscidae) through observations in the field and laboratory and also by means of complementary experiments. Overall, we recorded 25 spontaneous behaviors. Besides describing the physical habitat, we recorded some intraspecific interactions, agonistic and territorial behaviors, as well as the amphibian habit...
May 11, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29758182/exploratory-behavior-is-linked-to-stress-physiology-and-social-network-centrality-in-free-living-house-finches-haemorhous-mexicanus
#10
Sahnzi C Moyers, James S Adelman, Damien R Farine, Ignacio T Moore, Dana M Hawley
Animal personality has been linked to individual variation in both stress physiology and social behaviors, but few studies have simultaneously examined covariation between personality traits, stress hormone levels, and behaviors in free-living animals. We investigated relationships between exploratory behavior (one aspect of animal personality), stress physiology, and social and foraging behaviors in wild house finches (Haemorhous mexicanus). We conducted novel environment assays after collecting samples of baseline and stress-induced plasma corticosterone concentrations from a subset of house finches...
May 11, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29755252/a-digital-endocranial-cast-of-the-early-paleocene-puercan-archaic-mammal-onychodectes-tisonensis-eutheria-taeniodonta
#11
James G Napoli, Thomas E Williamson, Sarah L Shelley, Stephen L Brusatte
Eutherian mammals-placentals and their closest extinct relatives-underwent a major radiation following the end-Cretaceous extinction, during which they evolved disparate anatomy and established new terrestrial ecosystems. Much about the timing, pace, and causes of this radiation remain unclear, in large part because we still know very little about the anatomy, phylogenetic relationships, and biology of the so-called 'archaic' eutherians that prospered during the ~10 million years after the extinction. We describe the first digital endocranial cast of a taeniodont, a bizarre group of eutherians that flourished in the early Paleogene, reconstructed from a computed tomography (CT) scan of a late Puercan (65...
2018: Journal of Mammalian Evolution
https://www.readbyqxmd.com/read/29755181/the-pervasive-role-of-social-learning-in-primate-lifetime-development
#12
REVIEW
Andrew Whiten, Erica van de Waal
In recent decades, an accelerating research effort has exploited a substantial diversity of methodologies to garner mounting evidence for social learning and culture in many species of primate. As in humans, the evidence suggests that the juvenile phases of non-human primates' lives represent a period of particular intensity in adaptive learning from others, yet the relevant research remains scattered in the literature. Accordingly, we here offer what we believe to be the first substantial collation and review of this body of work and its implications for the lifetime behavioral ecology of primates...
2018: Behavioral Ecology and Sociobiology
https://www.readbyqxmd.com/read/29752005/large-mammal-diets-and-paleoecology-across-the-oldowan-acheulean-transition-at-olduvai-gorge-tanzania-from-stable-isotope-and-tooth-wear-analyses
#13
Kevin T Uno, Florent Rivals, Faysal Bibi, Michael Pante, Jackson Njau, Ignacio de la Torre
The well-dated Pleistocene sediments at Olduvai Gorge have yielded a rich record of hominin fossils, stone tools, and vertebrate faunal remains that, taken together, provide insight to hominin behavior and paleoecology. Since 2008, the Olduvai Geochronology and Archaeology Project (OGAP) has undertaken extensive excavations in Bed II that have yielded a large collection of early Pleistocene stone tools and fossils. The strata of Lower, Middle and Upper Bed II at Olduvai Gorge capture the critical transition from Oldowan to Acheulean technology and therefore provide an opportunity to explore the possible role of biotic and abiotic change during the transition...
May 8, 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29751309/modeling-salinization-and-recovery-of-road-salt-impacted-lakes-in-temperate-regions-based-on-long-term-monitoring-of-lake-george-new-york-usa-and-its-drainage-basin
#14
J W Sutherland, S A Norton, J W Short, C Navitsky
Road salt mitigates winter highway icing but accumulates in watershed soils and receiving waters, affecting soil chemistry and physical, biological, and ecological processes. Despite efforts to reduce salt loading in watersheds, accumulated cations and Cl- continue to impact tributaries and lakes, and the recovery process is not well understood. Lake George, New York (USA) is typical of many temperate lakes at risk for elevated Cl- concentrations from winter deicing; the lake salt concentration increased by ~3...
May 8, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29750557/frequency-dependence-and-ecological-drift-shape-coexistence-of-species-with-similar-niches
#15
Erik I Svensson, Miguel A Gómez-Llano, Anais Rivas Torres, Hanna M Bensch
The coexistence of ecologically similar species might be counteracted by ecological drift and demographic stochasticity, both of which erode local diversity. With niche differentiation, species can be maintained through performance trade-offs between environments, but trade-offs are difficult to invoke for species with similar ecological niches. Such similar species might then go locally extinct due to stochastic ecological drift, but there is little empirical evidence for such processes. Previous studies have relied on biogeographical surveys and inferred process from pattern, while experimental field investigations of ecological drift are rare...
June 2018: American Naturalist
https://www.readbyqxmd.com/read/29749004/analyzing-multilevel-factors-underlying-adolescent-smoking-behaviors-the-roles-of-friendship-network-family-relations-and-school-environment
#16
Harris H-S Kim, JongSerl Chun
BACKGROUND: This study investigates the extent to which friendship network, family relations, and school context are related to adolescent cigarette smoking. Friendship network is measured in terms of delinquent peers; family relations in terms of parental supervision; and school environment in terms of objective (eg, antismoking policy) and subjective (eg, school attachment) characteristics. METHODS: Findings are based on the secondary analysis of the health behavior in school-aged children, 2009-2010...
June 2018: Journal of School Health
https://www.readbyqxmd.com/read/29748867/time-delay-induced-dynamical-behaviors-for-an-ecological-vegetation-growth-system-driven-by-cross-correlated-multiplicative-and-additive-noises
#17
Kang-Kang Wang, Hui Ye, Ya-Jun Wang, Sheng-Hong Li
In this paper, the modified potential function, the stationary probability distribution function (SPDF), the mean growth time and the mean degeneration time for a vegetation growth system with time delay are investigated, where the vegetation system is assumed to be disturbed by cross-correlated multiplicative and additive noises. The results reveal some fact that the multiplicative and additive noises can both reduce the stability and speed up the decline of the vegetation system, while the strength of the noise correlation and time delay can both enhance the stability of the vegetation and slow down the depression process of the ecological system...
May 14, 2018: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/29748042/social-information-links-individual-behavior-to-population-and-community-dynamics
#18
REVIEW
Michael A Gil, Andrew M Hein, Orr Spiegel, Marissa L Baskett, Andrew Sih
When individual animals make decisions, they routinely use information produced intentionally or unintentionally by other individuals. Despite its prevalence and established fitness consequences, the effects of such social information on ecological dynamics remain poorly understood. Here, we synthesize results from ecology, evolutionary biology, and animal behavior to show how the use of social information can profoundly influence the dynamics of populations and communities. We combine recent theoretical and empirical results and introduce simple population models to illustrate how social information use can drive positive density-dependent growth of populations and communities (Allee effects)...
May 7, 2018: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/29747110/cadmium-removal-from-simulated-groundwater-using-alumina-nanoparticles-behaviors-and-mechanisms
#19
Neel Kamal Koju, Xin Song, Qing Wang, Zhihao Hu, Claudio Colombo
Cadmium (Cd), one of the most toxic contaminants in groundwater, can cause a severe threat to human health and ecological systems. In this study, alumina nanoparticles were synthesized and tested for high-efficiency Cd removal from simulated groundwater. Furthermore, the synthesized alumina nanoparticles were successfully modified using negatively charged glycerol, to alleviate the challenge of its low mobility in groundwater for the Cd removal. The maximum removal efficiency of both synthesized and glycerol-modified alumina nanoparticles were more than 99%...
May 7, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29747103/the-impact-of-electricity-consumption-on-co-2-emission-carbon-footprint-water-footprint-and-ecological-footprint-the-role-of-hydropower-in-an-emerging-economy
#20
Mufutau Opeyemi Bello, Sakiru Adebola Solarin, Yuen Yee Yen
The primary objective of this paper is to investigate the isolated impacts of hydroelectricity consumption on the environment in Malaysia as an emerging economy. We use four different measures of environmental degradation including ecological footprint, carbon footprint, water footprint and CO2 emission as target variables, while controlling for GDP, GDP square and urbanization for the period 1971 to 2016. A recently introduced unit root test with breaks is utilized to examine the stationarity of the series and the bounds testing approach to cointegration is used to probe the long run relationships between the variables...
May 7, 2018: Journal of Environmental Management
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