Isthminia panamensis, a new fossil inioid (Mammalia, Cetacea) from the Chagres Formation of Panama and the evolution of 'river dolphins' in the Americas.

abstract：:Irruptions of small consumer populations, driven by pulsed resources, can lead to adverse effects including the decline of indigenous species or increased disease spread. Broad-scale pest management to combat such effects benefits from forecasting of irruptions and an assessment of the optimal control conditions for m...

journal_title：PeerJ

authors： Holland EP,Binny RN,James A

更新日期：2018-12-20 00:00:00

abstract：Background:Alcohol-related hepatocellular carcinoma (HCC) was reported to be diagnosed at a later stage, but the mechanism was unknown. This study aimed to identify special key genes (SKGs) during alcohol-related HCC development and progression. Methods:The mRNA data of 369 HCC patients and the clinical information we...

journal_title：PeerJ

authors： Zhang X,Kang C,Li N,Liu X,Zhang J,Gao F,Dai L

更新日期：2019-02-06 00:00:00

abstract：:In this study we analysed the impact of water regime and soil nutrients on the clonal diversity and genetic variation of the sedge Carex nigra in a central alpine fen. For our analysis, we established 16 study plots randomly distributed over the fen. We determined the exact elevation of each plot as an indicator for t...

journal_title：PeerJ

authors： Reisch C,Meier S,Schmid C,Bartelheimer M

更新日期：2020-06-03 00:00:00

abstract：INTRODUCTION:The aim of this study was to determine the incidence rates of endometrial hyperplasia (EH) and endometrial cancer (EC) in the Republic of Korea using national insurance claim data generated from 2009 to 2012. MATERIALS AND METHODS:Data that were generated from 2009 to 2012 were sourced from the Korean Hea...

journal_title：PeerJ

authors： Yuk JS

更新日期：2016-08-24 00:00:00

abstract：:The ε subunit from ATP synthases acts as an ATP sensor in the bacterial cell to prevent ATP hydrolysis and thus the waste of ATP under conditions of low ATP concentration. However, the ATP binding affinities from various bacterial organisms differ markedly, over several orders of magnitude. For example, the ATP syntha...

journal_title：PeerJ

authors： Krah A,Bond PJ

更新日期：2018-09-05 00:00:00

abstract：:Long-term streamflow datasets inevitably include gaps, which must be filled to allow estimates of runoff and ultimately catchment water budgets. Uncertainty introduced by filling gaps in discharge records is rarely, if ever, reported. We characterized the uncertainty due to streamflow gaps in a reference watershed at ...

journal_title：PeerJ

authors： See CR,Green MB,Yanai RD,Bailey AS,Campbell JL,Hayward J

更新日期：2020-07-21 00:00:00

abstract：:Ephemeral rivers act as linear oases in drylands providing key resources to people and wildlife. However, not much is known about these rivers' sensitivities to human activities. We investigated the landscape-level determinants of riparian tree dieback along the Swakop River, a dammed ephemeral river in Namibia, focus...

journal_title：PeerJ

authors： Douglas CM,Mulligan M,Harrison XA,Henschel JR,Pettorelli N,Cowlishaw G

更新日期：2016-10-27 00:00:00

abstract：Background:Self-efficacy and enjoyment are two main constructs proposed within many motivational theories in any human endeavor, sport and physical activity included. Methods:The purpose of this study was to examine the factor structure of two pictorial scales measuring self-efficacy and enjoyment levels in a sample o...

journal_title：PeerJ

authors： Morano M,Bortoli L,Ruiz MC,Vitali F,Robazza C

更新日期：2019-07-29 00:00:00

abstract：BACKGROUND AND AIMS:Cryptic peracarids are an important component of the coral reef fauna in terms of diversity and abundance, yet they have been poorly studied. The aim of this study was to evaluate the taxonomic richness and abundance of cryptic peracarids in coral rubble in the Puerto Morelos Reef National Park, Mex...

journal_title：PeerJ

authors： Monroy-Velázquez LV,Rodríguez-Martínez RE,Alvarez F

更新日期：2017-06-15 00:00:00

abstract：Background:Larval settlement and intra-specific interactions during the recruitment phase are crucial in determining the distribution and density of sessile marine populations. Marine caves are confined and stable habitats. As such, they provide a natural laboratory to study the settlement and recruitment processes in ...

journal_title：PeerJ

authors： Costantini F,Rugiu L,Cerrano C,Abbiati M

更新日期：2018-05-21 00:00:00

abstract：Background:The influenza virus can cause seasonal infections with mild to severe symptoms, circulating worldwide, and it can affect people in any age group. Therefore, this infection is a serious public health problem that causes severe illness and death in high-risk populations. Every year, 0.5% of the world's populat...

journal_title：PeerJ

authors： Silva T,S Salomon P,Hamerski L,Walter J,B Menezes R,Siqueira JE,Santos A,Santos JAM,Ferme N,Guimarães T,O Fistarol G,I Hargreaves P,Thompson C,Thompson F,Souza TM,Siqueira M,Miranda M

更新日期：2018-10-26 00:00:00

abstract：Background:Magnetite-mediated direct interspecies electron transfer (DIET) between Geobacter and Methanosarcina species is increasingly being invoked to explain magnetite stimulation of methane production in anaerobic soils and sediments. Although magnetite-mediated DIET has been documented in defined co-cultures reduc...

journal_title：PeerJ

authors： Wang O,Zheng S,Wang B,Wang W,Liu F

更新日期：2018-03-21 00:00:00

abstract：:While studying organisms living in association with the solitary tunicate Phallusia nigra (Ascidiacea, Ascidiidae) from a shallow fringing reef at Zeytouna Beach (Egyptian Red Sea), one of the collected ascidians showed peculiar perforations on its tunic. Once dissected, the perforations revealed to be the openings of...

journal_title：PeerJ

authors： Martin D,Nygren A,Cruz-Rivera E

更新日期：2017-06-01 00:00:00

abstract：:Cytokines are fundamental for a functioning immune system, and thus potentially serve as important indicators of animal health. Quantitation of mRNA using quantitative reverse transcription polymerase chain reaction (qRT-PCR) is an established immunological technique. It is particularly suitable for detecting the expr...

journal_title：PeerJ

authors： Tsai MA,Chen IH,Wang JH,Chou SJ,Li TH,Leu MY,Ho HK,Yang WC

更新日期：2017-09-27 00:00:00

abstract：:Understanding characteristics of torso motion and arm swing of older adults is important. A comprehensive database of three-dimensional thoracic and pelvic kinematics and arm swing maximum velocity of older adults during overground walking is still lacking. Moreover, the relationships between these variables are not f...

journal_title：PeerJ

authors： Fang X,Jiang Z

更新日期：2020-07-07 00:00:00

abstract：BACKGROUND:Invasive species are among the most significant threats to biodiversity. The diet of invasive animal populations is a crucial factor that must be considered in the context of biological invasions. A broad dietary spectrum is a frequently cited characteristic of invasive species, allowing them to thrive in a ...

journal_title：PeerJ

authors： Courant J,Vogt S,Marques R,Measey J,Secondi J,Rebelo R,De Villiers A,Ihlow F,De Busschere C,Backeljau T,Rödder D,Herrel A

更新日期：2017-05-16 00:00:00

abstract：:Triple negative breast cancer (TNBC) is a belligerent carcinoma that is unresponsive to targeted receptor therapies. Development of new treatment strategies would benefit from an expanded repertoire of in vitro cell culture systems, such as those that support tridimensional growth in the presence of hydrogel scaffolds...

journal_title：PeerJ

authors： Jogalekar MP,Serrano EE

更新日期：2018-02-16 00:00:00

abstract：:Limestone karsts of Southeast Asia can harbor high levels of endemism, but are highly fragmented, increasingly threatened, and their biodiversity is often poorly studied. This is true of the Padawan Limestone Area of Sarawak, Malaysia, home to the endemic Artocarpus annulatus, the closest known wild relative of two im...

journal_title：PeerJ

authors： Dickinson L,Noble H,Gardner E,Puad ASA,Zakaria WNFW,Zerega NJC

更新日期：2020-09-21 00:00:00

abstract：:In contrast to reports of wild primates, studies of captive primates' flexibility often reveal conservatism: individuals are unable to switch to new and more efficient strategies when task demands change. We propose that such conservatism might be a result of task design and hypothesize that conservatism might be link...

journal_title：PeerJ

authors： Jacobson SL,Hopper LM

更新日期：2019-01-08 00:00:00

abstract：Background:Human population growth has led to biodiversity declines in tropical cities. While habitat loss and fragmentation have been the main drivers of urban biodiversity loss, man-made interventions to reduce health risks have also emerged as an unintentional threat. For instance, insecticide fogging to control mos...

journal_title：PeerJ

authors： Lee NSM,Clements GR,Ting ASY,Wong ZH,Yek SH

更新日期：2020-10-01 00:00:00

abstract：:Construction of hydropower stations has been an important approach to meet China's increasing power demand, but the impact of construction of hydropower stations on river microbiota is not fully understood. To evaluate this, the microbial composition from 18 sampling sites in the downstream of Jinsha River of China, u...

journal_title：PeerJ

authors： Chen X,He D,Zhou L,Cao Y,Li Z

更新日期：2020-07-16 00:00:00

abstract：:Metabarcoding can rapidly determine the species composition of bulk samples and thus aids biodiversity and ecosystem assessment. However, it is essential to use primer sets that minimize amplification bias among taxa to maximize species recovery. Despite this fact, the performance of primer sets employed for metabarco...

journal_title：PeerJ

authors： Elbrecht V,Braukmann TWA,Ivanova NV,Prosser SWJ,Hajibabaei M,Wright M,Zakharov EV,Hebert PDN,Steinke D

更新日期：2019-10-07 00:00:00

abstract：:The adaptative bleaching hypothesis (ABH) states that, depending on the symbiotic flexibility of coral hosts (i.e., the ability of corals to "switch" or "shuffle" their algal symbionts), coral bleaching can lead to a change in the composition of their associated Symbiodinium community and, thus, contribute to the cora...

journal_title：PeerJ

authors： Rouzé H,Lecellier GJ,Saulnier D,Planes S,Gueguen Y,Wirshing HH,Berteaux-Lecellier V

更新日期：2017-01-05 00:00:00

abstract：Background:Banteng (Bos javanicus d'Alton 1823) are an endangered species, highly sensitive to habitat structure and quality. In many areas, banteng were extinct and needed to be reintroduced to restore their population. Thus, understanding the responses of body condition of reintroduced banteng to their habitat was im...

journal_title：PeerJ

authors： Kongsurakan P,Chaiyarat R,Nakbun S,Thongthip N,Anuracpreeda P

更新日期：2020-04-23 00:00:00

abstract：BACKGROUND:Habitat selection and its adaptive outcomes are crucial features for animal life-history strategies. Nevertheless, congruence between habitat preferences and breeding success has been rarely demonstrated, which may result from the single-scale evaluation of animal choices. As habitat selection is a complex m...

journal_title：PeerJ

authors： Jedlikowski J,Brambilla M

更新日期：2017-03-28 00:00:00

abstract：:The decline in the number of hours Americans spend outdoors, exacerbated by urbanization, has affected people's familiarity with local wildlife. This is concerning to conservationists, as people tend to care about and invest in what they know. Children represent the future supporters of conservation, such that their k...

journal_title：PeerJ

authors： Schuttler SG,Stevenson K,Kays R,Dunn RR

更新日期：2019-07-23 00:00:00

abstract：:Several data loggers deployed to monitor temperature and humidity of Crocodylus acutus (American crocodile) nests in South Florida could not be located after hatching. One badly damaged data logger was retrieved, providing insight into the possible fate of the others. Using a taphonomic approach, we identified numerou...

journal_title：PeerJ

authors： Drumheller SK,Nestler JH,Hackett Farris CE,Farris SC,Mazzotti FJ

更新日期：2020-02-17 00:00:00

abstract：:In group-living animals, heterogeneity in individuals' social connections may mediate the sharing of microbial infectious agents. In this regard, the genetic relatedness of individuals' commensal gut bacterium Escherichia coli may be ideal to assess the potential for pathogen transmission through animal social network...

journal_title：PeerJ

authors： Balasubramaniam K,Beisner B,Guan J,Vandeleest J,Fushing H,Atwill E,McCowan B

更新日期：2018-01-17 00:00:00

abstract：OBJECTIVE:To determine the profile of 14 polybrominated diphenyl ethers (PBDEs) and 23 polychlorinated biphenyls (PCBs) in serum of domestic canines and whether this was predictive of thyroid hormone status. SAMPLES:Serum samples were collected from 51 client-owned dogs visiting the University of California Davis Will...

journal_title：PeerJ

authors： Lau G,Walter K,Kass P,Puschner B

更新日期：2017-09-12 00:00:00

abstract：:In a number of recent studies we used computer modeling to investigate the evolution of muscle leverage (moment arms) and function in extant and extinct archosaur lineages (crocodilians, dinosaurs including birds and pterosaurs). These studies sought to quantify the level of disparity and convergence in muscle moment ...

journal_title：PeerJ

authors： Bates K,Maidment SC,Schachner ER,Barrett PM

更新日期：2015-10-08 00:00:00