Abstract:
Aim:Historically, the distribution of Sandhill Cranes included much of North America and extending in summer into northeast Russia. In recent years, observations of sandhill cranes in Asia during the non-breeding period have been frequently reported. However, the distribution and abundance of sandhill cranes during the non-breeding period in Asia have rarely been summarized and studied. Our study aimed to analyze the status of sandhill cranes that have spread south into East Asia during the non-breeding period and to assess the possible impacts of their potential spread. Methods:Based on opportunistic data collected in the field and occurrence data collected online over the past half century, we used Geographic Information System to visualize the spatial distribution changes and regression analysis to analyze and visualize the changes in the amount of individuals over time. Results:In the last 50 years, the distribution of sandhill cranes during the non-breeding season in Asia spanned 31 degrees in longitude to the west and 15 degrees in latitude to the south. Their distribution in Asia has expanded to 17 provinces and municipalities in China, Japan and South Korea. The amount of cranes in the non-breeding period in Asia increased significantly from 1963 to 2017. According to the historical records in East Asia, sandhill cranes were mixed with five other species of crane groups. Main conclusions:These results indicate that the range and amount of sandhill cranes have expanded. Sandhill cranes were mixed with five other crane species, which indicate their adaptability to a range of habitat types and food resources. The implications of these trends in sandhill cranes in East Asia for this and other crane species warrants further research.
journal_name
PeerJjournal_title
PeerJauthors
Gao L,Mi C,Guo Ydoi
10.7717/peerj.7545subject
Has Abstractpub_date
2019-08-30 00:00:00pages
e7545issn
2167-8359pii
7545journal_volume
7pub_type
杂志文章相关文献
PeerJ文献大全abstract:Background:Despite clinical trials with antioxidant supplementation, few studies have been conducted to evaluate the nutritional status of antioxidant vitamins and minerals, and none have reported on the status of these serum antioxidants associated with the dietary intake of antioxidants by non-alcoholic fatty liver d...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9838
更新日期:2020-09-17 00:00:00
abstract::Rhodioloside, the main effective constituent of Rhodiola rosea, demonstrates antiaging and antioxidative stress functions and inhibits calcium overloading in cells. These functions imply that rhodioloside may exert protective effects on hippocampal neurons after total cerebral ischemia/reperfusion injury. In this stud...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10056
更新日期:2020-11-09 00:00:00
abstract::The new leafhopper genus Vittalianareticulata gen. nov., sp. nov., is described from India, and placed in the tribe Opsiini based on ocelli close to eyes, without carina on anterior margin of the face and bifurcate aedeagus with two gonopores. Phylogenetic analysis with maximum likelihood (ML) using IQtree v1.4.1 of c...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9515
更新日期:2020-08-27 00:00:00
abstract::Stridulatory signals are involved in conspecific interactions between bark beetles (Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can be periodically observed in two of them -P. proximus and P. su...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8281
更新日期:2020-01-02 00:00:00
abstract::Antibiotic resistance in our pathogens is medicine's climate change: caused by human activity, and resulting in more extreme outcomes. Resistance emerges in microbial populations when antibiotics act on phenotypic variance within the population. This can arise from either genotypic diversity (resulting from a mutation...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5801
更新日期:2018-10-12 00:00:00
abstract:Background:High throughput DNA sequencing of bulk invertebrate samples or metabarcoding is becoming increasingly used to provide profiles of biological communities for environmental monitoring. As metabarcoding becomes more widely applied, new reference DNA barcodes linked to individual specimens identified by taxonomi...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4980
更新日期:2018-06-13 00:00:00
abstract:Background:Leucojum aestivum L. is an important medicinal plant which produces Amaryllidaceae alkaloids, especially galanthamine and lycorine. Research is currently exploring the possibility of producing these alkaloids using biotechnological methods, including in vitro cultures. The biosynthesis of alkaloids may be af...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8688
更新日期:2020-03-16 00:00:00
abstract::While there have been increasing numbers of reports of human-wolf conflict in China during recent years, little is known about the nature of this conflict. In this study, we used questionnaires and semi-structured interviews to investigate local villagers' perceptions of wolves in Jiuzhaigou County, western China. We ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.982
更新日期:2015-06-09 00:00:00
abstract::Staurozoan classification is highly subjective, based on phylogeny-free inferences, and suborders, families, and genera are commonly defined by homoplasies. Additionally, many characters used in the taxonomy of the group have ontogenetic and intraspecific variation, and demand new and consistent assessments to establi...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1951
更新日期:2016-05-05 00:00:00
abstract:Purpose:Recent studies have determined that long non-coding RNAs (lncRNAs) are potential prognostic biomarkers for non-small cell lung cancers (NSCLCs). The purpose of this study was to analyze the function and associated pathways of zinc finger protein multitype 2 antisense RNA 1 (ZFPM2-AS1) in NSCLC cells. Methods:W...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10225
更新日期:2020-10-26 00:00:00
abstract:Background/Aims:Medical and behavioral needs are relevant in organizing and providing support strategies that improve the quality of life for children, along with their families. The present study aims to examine the impact of medical and behavioral needs on the need for support of children with disabilities. Methods:...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9557
更新日期:2020-09-15 00:00:00
abstract:AIMS:Mountain ranges in the tropics are characterised by high levels of localised endemism, often-aberrant evolutionary trajectories, and some of the world's most diverse regional biotas. Here we investigate the evolution of montane endemism, ecology and body size in a clade of direct-developing frogs (Choerophryne, Mi...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3077
更新日期:2017-03-30 00:00:00
abstract::Protection of honey bees is of great economic importance because of their role in pollination. Crucial steps towards this goal are epidemiological surveys of pathogens connected with honey bee losses. In this study deformed wing virus (DWV), chronic bee paralysis virus (CBPV), acute bee paralysis virus (ABPV) and sacb...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5887
更新日期:2018-11-14 00:00:00
abstract::Recent field trips to Member III of the Naobaogou Formation, Nei Mongol, China yielded new fossil discoveries, increasing our knowledge of the late Permian continental fauna from China. We present here a new large therocephalian, Jiufengia jiai gen. et sp. nov., represented by a partial skull with mandibles and part o...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6463
更新日期:2019-02-22 00:00:00
abstract::Ceratopsids ("horned dinosaurs") are known from western North America and Asia, a distribution reflecting an inferred subaerial link between the two landmasses during the Late Cretaceous. However, this clade was previously unknown from eastern North America, presumably due to limited outcrop of the appropriate age and...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3342
更新日期:2017-05-23 00:00:00
abstract::Atoposaurid crocodyliforms represent an important faunal component of Late Jurassic to Early Cretaceous Laurasian semi-aquatic to terrestrial ecosystems, with numerous spatiotemporally contemporaneous atoposaurids known from western Europe. In particular, the Late Jurassic of France and Germany records evidence for hi...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.599
更新日期:2014-09-25 00:00:00
abstract::In this study, we demonstrated the successful transformation of two pea (Pisum sativum L.) cultivars using Agrobacterium rhizogenes, whereby transgenic roots in the resulting composite plants showed expression of the gene encoding the green fluorescent protein. Subsequent to infection with A. rhizogenes, approximately...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6552
更新日期:2019-03-06 00:00:00
abstract::The prevalence of pre-diabetes (PD) among US adults has increased substantially over the past two decades. By current estimates, over 34% of US adults fall in the PD category, 84% of whom meet the American Diabetes Association's criteria for impaired fasting glucose (IFG). Low physical activity (PA) and/or sedentary b...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.499
更新日期:2014-08-19 00:00:00
abstract::The proportion of females calving (PFC) each year has been employed as an indicator of population reproductive performance in ungulates, especially for species that breed annually, because it requires less detailed population data than inter-birthing intervals and age at first reproduction. For asynchronous breeders w...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5430
更新日期:2018-08-15 00:00:00
abstract:Background and Aims:The link between gut microbiota and type 2 diabetes (T2D) has been addressed by numerous studies. Streptococcus thermophilus from fermented milk products, has been used as a probiotic in previous research. However, whether heat-killed S. thermophilus can improve the glycemic parameters of diabetic r...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7117
更新日期:2019-06-13 00:00:00
abstract::The Clarkia lagerstätte (Latah Formation) of Idaho is well known for its beautifully preserved plant fossils as well as a fauna of insects and fish. Here we present the first known tetrapod fossil from these deposits. This specimen, recovered from the lower anoxic zone of the beds, is preserved as a carbonaceous film ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4880
更新日期:2018-06-08 00:00:00
abstract::Background. Two non-tuberculous mycobacterial strains, UM_3 and UM_11, were isolated from the trunk wash of captive elephants in Malaysia. As they appeared to be identical phenotypes, they were investigated further by conventional and whole genome sequence-based methods of strain differentiation. Methods. Multiphasic ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1367
更新日期:2015-11-10 00:00:00
abstract::Partible paternity refers to the conception belief that children can have multiple fathers ("co-fathers") and is common to indigenous cultures of lowland South America. The nature of social relationships observed between co-fathers reveals information about the reproductive strategies underlying partible paternity. He...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.899
更新日期:2015-04-14 00:00:00
abstract::Biodiversity forecasts are important for conservation, management, and evaluating how well current models characterize natural systems. While the number of forecasts for biodiversity is increasing, there is little information available on how well these forecasts work. Most biodiversity forecasts are not evaluated to ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4278
更新日期:2018-02-08 00:00:00
abstract:Purpose:A literature review is presented that aims to summarize and compare current methods to evaluate sleep. Methods:Current sleep assessment methods have been classified according to different criteria; e.g., objective (polysomnography, actigraphy…) vs. subjective (sleep questionnaires, diaries…), contact vs. conta...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4849
更新日期:2018-05-25 00:00:00
abstract::This article is a presentation of taxonomic diversity of the orchid genus Cyrtochilum in Northwestern South America. The morphological characteristics of over 90 species occurring in northern Peru, Ecuador, Colombia and Venezuela are presented together with illustrations of their floral segments. Information about the...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8566
更新日期:2020-02-14 00:00:00
abstract:Background:Maize (Zea mays L.) is a principal cereal crop cultivated worldwide for human food, animal feed, and more recently as a source of biofuel. However, as a direct consequence of water insufficiency and climate change, frequent occurrences of both biotic and abiotic stresses have been reported in various regions...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7211
更新日期:2019-07-08 00:00:00
abstract:Background & Aims:Endothelial precursor cell (EPC) dysfunction is one of the risk factors for diabetes mellitus (DM) which results in delayed wound healing. Rosiglitazone (RSG) is a frequently prescribed oral glucose-lowering drug. Previous studies have shown the positive effects of RSG on ameliorating EPC dysfunction ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7815
更新日期:2019-10-17 00:00:00
abstract:Background:Geographic variation in body size and condition can reveal differential local adaptation to resource availability or climatic factors. Body size and condition are related to fitness in garter snakes (Thamnophis), thus good body condition may increase survival, fecundity in females, and mating success in male...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6601
更新日期:2019-03-13 00:00:00
abstract::We often expect that investigations of the patterns, causes, and consequences of among-individual variation in a trait of interest will reveal how selective pressures or ecological conditions influence that trait. However, many endocrine traits, such as concentrations of glucocorticoid (GC) hormones, exhibit adaptive ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4398
更新日期:2018-02-21 00:00:00