Conservation Physiology最新文献_第7页

Thermally unstable roosts influence winter torpor patterns in a threatened bat species 热量不稳定的栖息地影响一种濒危蝙蝠的冬眠模式

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-04-16 DOI: 10.1093/conphys/coae014

Blaise A Newman, Susan C Loeb, David S Jachowski

{"title":"Thermally unstable roosts influence winter torpor patterns in a threatened bat species","authors":"Blaise A Newman, Susan C Loeb, David S Jachowski","doi":"10.1093/conphys/coae014","DOIUrl":"https://doi.org/10.1093/conphys/coae014","url":null,"abstract":"Many hibernating bats in thermally stable, subterranean roosts have experienced precipitous declines from white-nose syndrome (WNS). However, some WNS-affected species also use thermally unstable roosts during winter that may impact their torpor patterns and WNS susceptibility. From November to March 2017–19, we used temperature-sensitive transmitters to document winter torpor patterns of tricolored bats (Perimyotis subflavus) using thermally unstable roosts in the upper Coastal Plain of South Carolina. Daily mean roost temperature was 12.9 ± 4.9°C SD in bridges and 11.0 ± 4.6°C in accessible cavities with daily fluctuations of 4.8 ± 2°C in bridges and 4.0 ± 1.9°C in accessible cavities and maximum fluctuations of 13.8 and 10.5°C, respectively. Mean torpor bout duration was 2.7 ± 2.8 days and was negatively related to ambient temperature and positively related to precipitation. Bats maintained non-random arousal patterns focused near dusk and were active on 33.6% of tracked days. Fifty-one percent of arousals contained passive rewarming. Normothermic bout duration, general activity and activity away from the roost were positively related to ambient temperature, and activity away from the roost was negatively related to barometric pressure. Our results suggest ambient weather conditions influence winter torpor patterns of tricolored bats using thermally unstable roosts. Short torpor bout durations and potential nighttime foraging during winter by tricolored bats in thermally unstable roosts contrasts with behaviors of tricolored bats in thermally stable roosts. Therefore, tricolored bat using thermally unstable roosts may be less susceptible to WNS. More broadly, these results highlight the importance of understanding the effect of roost thermal stability on winter torpor patterns and the physiological flexibility of broadly distributed hibernating species.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140611924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological validation of faecal corticosterone metabolites as a non-invasive stress assessment in translocated California valley quail (Callipepla californica) 将粪便皮质酮代谢物作为一种非侵入性应激评估方法对迁移的加州山谷鹌鹑（Callipepla californica）进行生物学验证

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-04-13 DOI: 10.1093/conphys/coae012

Sarah A. Currier, Jeffrey G. Whitt, Kelly S. Reyna

{"title":"Biological validation of faecal corticosterone metabolites as a non-invasive stress assessment in translocated California valley quail (Callipepla californica)","authors":"Sarah A. Currier, Jeffrey G. Whitt, Kelly S. Reyna","doi":"10.1093/conphys/coae012","DOIUrl":"https://doi.org/10.1093/conphys/coae012","url":null,"abstract":"Abstract US quail species are vulnerable to population declines as a result of climate change, habitat loss and habitat fragmentation, all of which can result in physiological stress. Additionally, population restoration techniques (PRTs), like translocations, also induce stress. Traditional assessments of avian stress hormone levels include capturing and handling birds to extract blood, methods that are inherently stressful and can compound stress analyses. However, the stress hormone corticosterone (CORT) is metabolized from the blood and excreted in faeces as faecal corticosterone metabolites (FCMs). FCMs have been used as a non-invasive measurement of stress hormone levels in a variety of species, but must be validated for each species. The objective of this study was to biologically validate the use of FCMs as a non-invasive measurement of CORT levels in California valley quail (Callipepla californica). Reference and treatment quail were acclimated for 3 weeks in an outdoor aviary. Subsequently, treatment quail were subjected to a simulated 48-h translocation, a common and stress hormone-inducing PRT. Faecal samples were collected every 4 h and processed using an enzyme immunoassay. Mean FCM concentrations of treatment quail (41.50 ± 16.13 ng/g) were higher than reference FCM concentrations (24.07 ± 10.4 ng/g). These results biologically validate the use of FCMs as a non-invasive method to assess CORT levels in California valley quail, demonstrate diurnal variation in quail CORT levels, and confirm that quail translocations are a stress-inducing PRT. Ultimately, this research validates a new non-invasive tool for stress response measurement to advance quail research, management and conservation.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140708529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physiological condition infers habitat choice in juvenile sockeye salmon 红鲑幼鱼的生理状况推断其栖息地选择

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-04-02 DOI: 10.1093/conphys/coae011

Daniella C LoScerbo, Samantha M Wilson, Kendra A Robinson, Jonathan W Moore, David A Patterson

{"title":"Physiological condition infers habitat choice in juvenile sockeye salmon","authors":"Daniella C LoScerbo, Samantha M Wilson, Kendra A Robinson, Jonathan W Moore, David A Patterson","doi":"10.1093/conphys/coae011","DOIUrl":"https://doi.org/10.1093/conphys/coae011","url":null,"abstract":"The amount of time that juvenile salmon remain in an estuary varies among and within populations, with some individuals passing through their estuary in hours while others remain in the estuary for several months. Underlying differences in individual physiological condition, such as body size, stored energy and osmoregulatory function, could drive individual variation in the selection of estuary habitat. Here we investigated the role of variation in physiological condition on the selection of estuarine and ocean habitat by sockeye salmon (Oncorhynchus nerka) smolts intercepted at the initiation of their 650-km downstream migration from Chilko Lake, Fraser River, British Columbia (BC). Behavioural salinity preference experiments were conducted on unfed smolts held in fresh water at three time intervals during their downstream migration period, representing the stage of migration at lake-exit, and the expected timing for estuary-entry and ocean-entry (0, 1 and 3 weeks after lake-exit, respectively). In general, salinity preference behaviour varied across the three time periods consistent with expected transition from river to estuary to ocean. Further, individual physiological condition did influence habitat choice. Smolt condition factor (K) and energy density were positively correlated with salinity preference behaviour in the estuary and ocean outmigration stages, but not at lake-exit. Our results suggest that smolt physiological condition upon reaching the estuary could influence migratory behaviour and habitat selection. This provides evidence on the temporally dependent interplay of physiology, behaviour and migration in wild juvenile Pacific salmon, with juvenile rearing conditions influencing smolt energetic status, which in turn influences habitat choice during downstream migration. The implication for the conservation of migratory species is that the relative importance of stopover habitats may vary as a function of initial condition.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140575319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Capture and transport of white rhinoceroses (Ceratotherium simum) cause shifts in their fecal microbiota composition towards dysbiosis. 更正：白犀牛（Ceratotherium simum）的捕捉和运输导致其粪便微生物群组成向菌群失调转变。

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-03-27 eCollection Date: 2024-01-01 DOI: 10.1093/conphys/coae017

引用次数: 0

Correction to: Atlantic salmon (Salmo salar) age at maturity is strongly affected by temperature, population and age-at-maturity genotype. 更正：大西洋鲑（Salmo salar）的成熟年龄受温度、种群和成熟年龄基因型的强烈影响。

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-03-21 eCollection Date: 2024-01-01 DOI: 10.1093/conphys/coae016

引用次数: 0

Kibble diet is associated with higher faecal glucocorticoid metabolite concentrations in zoo-managed red wolves (Canis rufus). 狗粮与动物园管理的红狼（Canis rufus）粪便中较高的糖皮质激素代谢物浓度有关。

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-02-27 eCollection Date: 2024-01-01 DOI: 10.1093/conphys/coae008

Morgan Bragg, Carly R Muletz-Wolz, Nucharin Songsasen, Elizabeth W Freeman

{"title":"Kibble diet is associated with higher faecal glucocorticoid metabolite concentrations in zoo-managed red wolves (Canis rufus).","authors":"Morgan Bragg, Carly R Muletz-Wolz, Nucharin Songsasen, Elizabeth W Freeman","doi":"10.1093/conphys/coae008","DOIUrl":"10.1093/conphys/coae008","url":null,"abstract":"The red wolf (Canis rufus) is a critically endangered canid that exists solely because of the establishment of the ex situ population in the late 1980s. Yet, the population under human care suffers from gastrointestinal (GI) disease in captivity. While the cause of GI disease is unknown, it is speculated that environmental factors can influence GI health of zoo-managed red wolves. The goal of the present study was to investigate the relationship between faecal glucocorticoid metabolite (FGM) concentrations, a biomarker for stress, and environmental factors for zoo-managed red wolves. Faecal samples were collected from 14 adult wolves three times a week for 5 to 12 months. Using a single-antibody cortisol enzyme immunoassay, FGM concentrations were quantified. Environmental factors were collected for each participating wolf on dietary type, sex, type of public access to enclosure, density (enclosure size [ft2]/number of wolves living in enclosure) and a monthly average status of GI health. Red wolves that ate a commercial kibble diet had both higher FGM concentrations over time and higher baseline FGM concentrations compared to individuals that received commercial kibble mixed with commercial meat. Density, public access or GI health were not related to FGM concentration; however, males had higher baseline FGM concentrations compared to female red wolves. Our findings suggest that management conditions, particularly diet, can strongly influence FGM concentration in the zoo-managed red wolf population. Findings from this study highlight the importance of management choices on individual welfare. Maintaining a healthy captive population of red wolves is imperative for the persistence of the species, including successful future reintroductions.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10898788/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139984498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Same, same, but different: dissimilarities in the hydrothermal germination performance of range-restricted endemics emerge despite microclimatic similarities 相同、相同，但又不同：尽管小气候相似，但范围受限的特有物种的热液萌芽性能却存在差异

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-02-23 DOI: 10.1093/conphys/coae009

Rajapakshe P V G S W Rajapakshe, Sean Tomlinson, Emily P Tudor, Shane R Turner, Carole P Elliott, Wolfgang Lewandrowski

{"title":"Same, same, but different: dissimilarities in the hydrothermal germination performance of range-restricted endemics emerge despite microclimatic similarities","authors":"Rajapakshe P V G S W Rajapakshe, Sean Tomlinson, Emily P Tudor, Shane R Turner, Carole P Elliott, Wolfgang Lewandrowski","doi":"10.1093/conphys/coae009","DOIUrl":"https://doi.org/10.1093/conphys/coae009","url":null,"abstract":"Seed germination responses for most narrow-range endemic species are poorly understood, imperilling their conservation management in the face of warming and drying terrestrial ecosystems. We quantified the realized microclimatic niches and the hydrothermal germination thresholds in four threatened taxa (Tetratheca erubescens, Tetratheca harperi, Tetratheca paynterae subsp. paynterae and Tetratheca aphylla subsp. aphylla) that are restricted to individual Banded Ironstone Formations in Western Australia. While T. aphylla subsp. aphylla largely failed to germinate in our trials, all other species demonstrated extended hydrothermal time accumulation (186–500°C MPa days), cool minimum temperatures (7.8–8.5°C), but broad base water potential thresholds (−2.46 to −5.41 MPa) under which germination occurred. These slow germination dynamics are suggestive of cool and wet winter months, where soil moisture is retained to a greater capacity in local microsites where these species occur, rather than the warmer and drier conditions in the surrounding arid environment. Hydrothermal time-to-event modelling showed that each species occupied unique hydrothermal germination niches, which correspond with the microclimatic differences the species are exposed to. Our results provide a baseline understanding for environmental and germination thresholds that govern the recruitment, and ultimately the population structure and persistence, of these short-range endemic plants. In addition, our results can aid future conservation, as well as restoration actions such as translocation to bolster population numbers and to mitigate against losses due to anthropogenic disturbance and global environmental change.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139951398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Health parameters for wild Carnaby's cockatoo (Zanda latirostris) nestlings in Western Australia: results of a long-term study 西澳大利亚野生卡纳比凤头鹦鹉（Zanda latirostris）雏鸟的健康参数：长期研究的结果

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-02-21 DOI: 10.1093/conphys/coae005

Anna T Le Souëf, Mieghan Bruce, Amanda Barbosa, Jill M Shephard, Peter R Mawson, Rick Dawson, Denis A Saunders, Kristin S Warren

{"title":"Health parameters for wild Carnaby's cockatoo (Zanda latirostris) nestlings in Western Australia: results of a long-term study","authors":"Anna T Le Souëf, Mieghan Bruce, Amanda Barbosa, Jill M Shephard, Peter R Mawson, Rick Dawson, Denis A Saunders, Kristin S Warren","doi":"10.1093/conphys/coae005","DOIUrl":"https://doi.org/10.1093/conphys/coae005","url":null,"abstract":"The collection of baseline health data is an essential component of an endangered species conservation program. As for many wildlife species, there are minimal health data available for wild populations of the endangered Carnaby’s cockatoo (Zanda latirostris). In this study, 426 wild Carnaby’s cockatoo nestlings were sampled from nine breeding sites throughout the range of the species over an 11-year period. In addition to a physical examination, samples were collected to test for hematologic and biochemical parameters, psittacine beak and feather disease virus (BFDV), avian polyomavirus (APV), psittacine adenovirus, psittacine herpesvirus, Chlamydia, disease serology and endoparasites. Environmental sampling was performed to screen for BFDV and APV in nest hollows. Descriptive health data are presented for nestlings of this species, with BFDV, APV and Chlamydia infections reported. Reference intervals for hematologic and biochemical parameters are presented in three age groups, and factors affecting blood analytes and body condition index are discussed. This longitudinal dataset provides insights into health parameters for Carnaby’s cockatoo nestlings and a reference for future monitoring of breeding populations.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139951156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hematological and biochemical parameters of giant pandas (Ailuropoda melanoleuca) in captive and semi-natural environments. 圈养和半自然环境中大熊猫（Ailuropoda melanoleuca）的血液学和生物化学参数。

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-02-15 eCollection Date: 2024-01-01 DOI: 10.1093/conphys/coad083

Wenlei Bi, Songrui Liu, Michael P O'Connor, Jacob R Owens, Marc T Valitutto, Rong Hou, Dunwu Qi, Lee-Ann Collins Hayek, Fanqi Wu, Rui Ma, Jiabin Liu, Yanshan Zhou, Long Zhang, Ramana Callan, Li Luo, Wenjun Huang, Zhihe Zhang, James R Spotila

{"title":"Hematological and biochemical parameters of giant pandas (Ailuropoda melanoleuca) in captive and semi-natural environments.","authors":"Wenlei Bi, Songrui Liu, Michael P O'Connor, Jacob R Owens, Marc T Valitutto, Rong Hou, Dunwu Qi, Lee-Ann Collins Hayek, Fanqi Wu, Rui Ma, Jiabin Liu, Yanshan Zhou, Long Zhang, Ramana Callan, Li Luo, Wenjun Huang, Zhihe Zhang, James R Spotila","doi":"10.1093/conphys/coad083","DOIUrl":"10.1093/conphys/coad083","url":null,"abstract":"Physiological indexes like blood parameters have been widely used to monitor the health of free-roaming animals. Attempts to reintroduce one of China's most endangered species, the giant panda (Ailuropoda melanoleuca), have been hampered by a lack of data on its ecology and physiology. We examined three giant pandas' hematological and blood chemistry parameters in a soft release program and 30 captive giant pandas as controls and determined the reference intervals (RIs) for those blood parameters in the captive animals. Elevation, captivity status and the interaction of those factors were statistically significant for hematologic measures. Release pandas had significantly higher hemoglobin and hematocrit values after they moved to high elevation locations. We also found significant difference in the enzyme parameters between high and low elevation pandas such as higher aspartate aminotransferase, alanine aminotransferase, creatinine kinase, amylase and lower lactate dehydrogenase and alkaline phosphatase. Release pandas also had higher nutrition parameter values such as higher albumin, globulin and creatinine. The RI for blood parameters in our study provides a baseline to monitor the health of captive animals and forms the basis for assessing the health of free-roaming giant pandas in future reintroduction efforts.","PeriodicalId":54331,"journal":{"name":"Conservation Physiology","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10873526/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139900848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reflections on a decade of service as founding Editor-in-Chief of Conservation Physiology. 担任《养护生理学》创刊主编十年的感想。

IF 2.7 3区环境科学与生态学

Conservation Physiology Pub Date : 2024-02-14 eCollection Date: 2024-01-01 DOI: 10.1093/conphys/coad103

Steven J Cooke

引用次数: 0