Abstract:
:Despite decades of research, we still lack a complete understanding of what factors influence the transition of the necessary and adaptive acute stress response to what has become known as chronic stress. This gap in knowledge has illuminated the necessity for studies that examine the thresholds between these two sides of the stress response. Here, we determine how repeated exposure to acute stressors influences physiological and behavioral responses. In this repeated measures study, house sparrows (Passer domesticus) were exposed to a chronic stress protocol. We took physiological and behavioral measurements before, during, and after the protocol. Blood samples were used to assess four aspects of hypothalamic-pituitary-adrenal (HPA) axis function: baseline corticosterone, stress-induced corticosterone, negative feedback, and the maximal capacity to secrete corticosterone. We also assessed bacterial killing capacity and changes in uric acid concentration. Neophobia trials were used to assess behavioral changes throughout the protocol. We found no significant changes in HPA axis regulation in any of the four aspects we tested. However, we found that uric acid concentrations and neophobia significantly decreased after only four days of the chronic stress protocol, while bacterial killing capacity did not decrease until after eight days of exposure. These results indicate that different components of the stress response can be impacted by chronic stress on different timescales. Our results further indicate the importance of assessing multiple aspects of both physiology and behavior in order to understand how exposure to chronic stress may influence ability to cope with future challenges.
journal_name
PeerJjournal_title
PeerJauthors
Gormally BMG,Wright-Lichter J,Reed JM,Romero LMdoi
10.7717/peerj.4961subject
Has Abstractpub_date
2018-06-06 00:00:00pages
e4961issn
2167-8359pii
4961journal_volume
6pub_type
杂志文章相关文献
PeerJ文献大全abstract::Species distribution models (SDMs) have become an essential tool in ecology, biogeography, evolution and, more recently, in conservation biology. How to generalize species distributions in large undersampled areas, especially with few samples, is a fundamental issue of SDMs. In order to explore this issue, we used the...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2849
更新日期:2017-01-12 00:00:00
abstract::The culture of pelagic marine invertebrates, especially the ctenophore Mnemiopsis leidyi, has been demonstrated in past studies dating back to the 1960s; however, the mass culture of delicate pelagic invertebrates has remained elusive. By using a pair of acrylic tubes and enabling water diffusion between them, we have...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8938
更新日期:2020-04-07 00:00:00
abstract::Climatic variables have been the main predictors employed in ecological niche modeling and species distribution modeling, although biotic interactions are known to affect species' spatial distributions via mechanisms such as predation, competition, and mutualism. Biotic interactions can affect species' responses to ab...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6052
更新日期:2018-12-05 00:00:00
abstract:Background:The gray snapper (Lutjanus griseus) has a tropical and subtropical distribution. In much of its range this species represents one of the most important fishery resources because of its high quality meat and market value. Due to this, this species is vulnerable to overfishing, and population declines have bee...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8485
更新日期:2020-02-10 00:00:00
abstract::Species traits may provide a short-cut to predicting generalities in species turnover in response to environmental change, particularly for poorly known taxa. We ask if morphological traits of assemblages respond predictably to macrohabitats across a large scale. Ant assemblages were collected at nine paired pasture a...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.271
更新日期:2014-03-04 00:00:00
abstract::Dinocephalian therapsids are renowned for their massive, pachyostotic and ornamented skulls adapted for head-to-head fighting during intraspecific combat. Synchrotron scanning of the tapinocephalid Moschops capensis reveals, for the first time, numerous anatomical adaptations of the central nervous system related to t...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3496
更新日期:2017-08-10 00:00:00
abstract::Teeth have been a focus of research in both extinct and extant taxa alike; a significant portion of dental literature is concerned with dental patterning and replacement. Most non-mammalian vertebrates continuously replace their dentition but an anomalous group of squamates has forgone this process in only having one ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5923
更新日期:2018-11-08 00:00:00
abstract::The Hydroporus memnonius species group includes both widespread and range restricted diving beetle taxa in the western Palaearctic, some of which have been divided into a number of geographical subspecies. Of these, Hydroporus necopinatus is distributed in the far west of Europe, from central Spain to southern Britain...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3076
更新日期:2017-03-09 00:00:00
abstract:Background and Purpose:Several studies have proposed that the advanced lung cancer inflammation index (ALI), a new inflammation-related index, can be used for the prognosis assessment of various malignancies. However, few studies have reported its prognostic value in colorectal cancer (CRC). Therefore, this study explo...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10100
更新日期:2020-10-08 00:00:00
abstract::This study aimed (i) to explore the relationship between vertical (jumping) and horizontal (sprinting) force-velocity-power (FVP) mechanical profiles in a large range of sports and levels of practice, and (ii) to provide a large database to serve as a reference of the FVP profile for all sports and levels tested. A to...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5937
更新日期:2018-11-13 00:00:00
abstract::Populations of passively dispersed organisms in continental aquatic habitats typically show high levels of neutral genetic differentiation despite their high dispersal capabilities. Several evolutionary factors, including founder events, local adaptation, and life cycle features such as high population growth rates an...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6094
更新日期:2018-12-11 00:00:00
abstract::The ubiquitin-proteasome system targets misfolded proteins for degradation. Since the accumulation of such proteins is potentially harmful for the cell, their prompt removal is important. E3 ubiquitin-protein ligases mediate substrate ubiquitination by bringing together the substrate with an E2 ubiquitin-conjugating e...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1725
更新日期:2016-02-25 00:00:00
abstract:Background:Introduced predators at seabird colonies and parasites may have lethal and/or sub-lethal consequences for bird populations. We assessed the potential sub-lethal negative effects of these stressors in a native seabird listed as vulnerable in its south-eastern pacific distribution. This study was conducted in ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9088
更新日期:2020-07-08 00:00:00
abstract::Background. The relative efficacy and safety of lacosamide as adjunctive therapy compared to other antiepileptic drugs has not been well established. Objective. To determine if lacosamide provides improved efficacy and safety, reduced length of hospital stay and improved quality of life compared with other anti-epilep...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.114
更新日期:2013-08-06 00:00:00
abstract::Molecular stress responses associated with coral diseases represent an under-studied area of cnidarian transcriptome investigations. Caribbean Yellow Band Disease (CYBD) is considered a disease of Symbiodinium within the tissues of the coral host Orbicella faveolata. There is a paucity of diagnostic tools to assist in...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1371
更新日期:2015-11-03 00:00:00
abstract:Background:The problem of access to medical information, particularly in low-income countries, has been under discussion for many years. Although a number of developments have occurred in the last decade (e.g., the open access (OA) movement and the website Sci-Hub), everyone agrees that these difficulties still persist...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7850
更新日期:2019-10-30 00:00:00
abstract::With rising environmental concerns on potable water safety and eutrophication, increased media attention and tighter environmental regulations, managing animal waste in an environmentally responsible and economically feasible way can be a challenge. In this study, the possibility of using granular anammox process for ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.336
更新日期:2014-04-08 00:00:00
abstract::The threatened status (both ecologically and legally) of Caribbean staghorn coral, Acropora cervicornis, has prompted rapidly expanding efforts in culture and restocking, although tissue loss diseases continue to affect populations. In this study, disease surveillance and histopathological characterization were used t...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.541
更新日期:2014-08-28 00:00:00
abstract:Background:Acute respiratory distress syndrome (ARDS) is associated with significantly increased risk of death, and early risk stratification may help to choose the appropriate treatment. The study aimed to develop a neural network model by using a genetic algorithm (GA) for the prediction of mortality in patients with...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7719
更新日期:2019-09-16 00:00:00
abstract::Haasgat is a primate-rich fossil locality in the northeastern part of the Fossil Hominid Sites of South Africa UNESCO World Heritage Site. Here we report the first hominin identified from Haasgat, a partial maxillary molar (HGT 500), that was recovered from an ex situ calcified sediment block sampled from the locality...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2024
更新日期:2016-05-11 00:00:00
abstract::The expansion of the wind energy industry has had benefits in terms of increased renewable energy production but has also led to increased mortality of migratory bats due to interactions with wind turbines. A key question that could guide bat-related management activities is identifying the geographic origin of bats k...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10082
更新日期:2020-10-19 00:00:00
abstract:Background:The coral genus Acropora contains more than 150 species with very high morphological diversity. This high diversity may have been caused by repeated hybridization via mass spawning. However, we have little information whether hybrids are formed in these corals. Identifying morphological differences between h...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6429
更新日期:2019-02-19 00:00:00
abstract::Bioluminescent reporter genes, such as those from fireflies and bacteria, let researchers use light production as a non-invasive and non-destructive surrogate measure of microbial numbers in a wide variety of environments. As bioluminescence needs microbial metabolites, tagging microorganisms with luciferases means on...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2130
更新日期:2016-06-22 00:00:00
abstract::Parallelism is important because it reveals how inherently stochastic adaptation is. Even as we come to better understand evolutionary forces, stochasticity limits how well we can predict evolutionary outcomes. Here we sought to quantify parallelism and some of its underlying causes by adapting a bacteriophage (ID11) ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2227
更新日期:2016-07-19 00:00:00
abstract::Cold-water corals provide an important habitat for a rich fauna along the continental margins and slopes. Although these azooxanthellate corals are considered particularly sensitive to ocean acidification, their responses to natural variations in pH and aragonite saturation are largely unknown due to the difficulty of...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.194
更新日期:2013-10-29 00:00:00
abstract:Background:The fall webworm, Hyphantria cunea Drury (Lepidoptera: Erebidae), is a widespread invasive species. It is native to North America, ranging from southern Canada to northern Mexico. During and after the 1940s, this pest was accidentally introduced in many parts of Europe and Asia. It has now spread to more tha...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9244
更新日期:2020-06-02 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::Previous research has shown that odorants consistently evoke associations with textures and their tactile properties like smoothness and roughness. Also, it has been observed that olfaction can modulate tactile perception. We therefore hypothesized that tactile roughness perception may be biased towards the somatosens...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.955
更新日期:2015-05-12 00:00:00
abstract::Background.Chinese fir [Cunninghamia lanceolata (Lamb.) Hook.] is one of the most important native tree species for timber production in southern China. An understanding of overall fast growing stage, stem growth stage and senescence stage cambium transcriptome variation is lacking. We used transcriptome sequencing to...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2097
更新日期:2016-06-07 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
pub_type: 杂志文章
doi:10.7717/peerj.3840
更新日期:2017-09-27 00:00:00