Kelsea Young, Alexandra Tsalickis, Thomas N. Sheehan, K. Klepzig, M. Caterino, Jessica A. Hartshorn
Abstract Dung beetles provide essential ecosystem services and serve as biodiversity indicators. Despite their importance, no studies have assessed their role in Pinus palustris (Longleaf Pine) forests. We assessed dung beetle diversity and abundance in a pristine Longleaf Pine forest in southwest Georgia, USA, by collecting beetles with pitfall traps in sites that excluded mammalian mesopredators as well as unfenced control sites. We collected 22 dung beetle taxa in total over a 24-month period and found higher beetle abundance and species richness in exclosure sites, though they showed no preference for dung source (i.e., Odocoileus virginianus [White-tailed Deer], Lynx rufus [Bobcat], Canis latrans [Coyote]). Melanocanthon bispinatus was the most abundant species (49.6% of total beetles). Results provide insight into the interactions of dung beetles and predators in Longleaf Pine ecosystems.
{"title":"Dung Beetle Community Composition in the Presence and Absence of Mesopredators in a Longleaf Pine Forest","authors":"Kelsea Young, Alexandra Tsalickis, Thomas N. Sheehan, K. Klepzig, M. Caterino, Jessica A. Hartshorn","doi":"10.1656/058.022.0112","DOIUrl":"https://doi.org/10.1656/058.022.0112","url":null,"abstract":"Abstract Dung beetles provide essential ecosystem services and serve as biodiversity indicators. Despite their importance, no studies have assessed their role in Pinus palustris (Longleaf Pine) forests. We assessed dung beetle diversity and abundance in a pristine Longleaf Pine forest in southwest Georgia, USA, by collecting beetles with pitfall traps in sites that excluded mammalian mesopredators as well as unfenced control sites. We collected 22 dung beetle taxa in total over a 24-month period and found higher beetle abundance and species richness in exclosure sites, though they showed no preference for dung source (i.e., Odocoileus virginianus [White-tailed Deer], Lynx rufus [Bobcat], Canis latrans [Coyote]). Melanocanthon bispinatus was the most abundant species (49.6% of total beetles). Results provide insight into the interactions of dung beetles and predators in Longleaf Pine ecosystems.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"18 1","pages":"78 - 90"},"PeriodicalIF":0.6,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89433204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
T. Keyser, D. Styers, Marcus Wind, L. Dewald, B. Collins
Abstract Tsuga caroliniana (Carolina Hemlock) is a species endemic to the southern Appalachian Mountains. Extant populations are under threat from the spread of introduced Adelges tsugae (Hemlock Woolly Adelgid), and information necessary to inform Carolina Hemlock conservation and future restoration efforts is limited. Our research characterized the structure and composition of Carolina Hemlock communities in the middle of its geographic range. We identified 5 sites where Carolina Hemlock comprised a major component of the stand. We collected data on structure, composition, and physiography in four 0.05-ha plots at each site. We quantified density and diversity of the overstory (≥5 cm dbh) and regeneration (<5 cm dbh) layers and used non-metric multidimensional scaling (NMS) to characterize species composition. At all but 1 site, Carolina Hemlock possessed the greatest importance value. Aspect, basal area, and species diversity varied only slightly among the sites. Overstory species composition was distinct at each site, while that of the regeneration layer was similar. Only 3% of the stems in the regeneration layer were Carolina Hemlock, with the seedling layer dominated by Acer (maple) species. Consequently, overstory mortality following disturbance will likely result in the recruitment of shade-tolerant species, maples in particular, which would homogenize the composition of these 5 distinct Carolina Hemlock communities.
卡罗莱纳铁杉(Tsuga caroliniana)是阿巴拉契亚山脉南部特有的一种铁杉。现存种群正受到引进的铁杉(Adelges tsugae)传播的威胁，并且为卡罗莱纳铁杉保护和未来恢复工作提供必要的信息有限。本研究对卡罗莱纳铁杉在其地理范围内的群落结构和组成进行了研究。我们确定了卡罗莱纳铁杉构成林分主要组成部分的5个地点。我们在每个站点收集了4个0.05 ha地块的结构、组成和地形数据。我们量化了林分上层(≥5 cm dbh)和更新层(<5 cm dbh)的密度和多样性，并采用非度量多维尺度(NMS)对物种组成进行了表征。除1个站点外，卡罗莱纳铁杉具有最重要的价值。坡向、基面积和物种多样性在不同的站点之间变化不大。各立地上层物种组成不同，更新层物种组成相似。再生层茎部仅3%为卡罗莱纳铁杉，幼苗层以槭(枫)种为主。因此，干扰后的林层死亡可能导致耐阴物种的补充，特别是枫树，这将使这5种不同的卡罗莱纳铁杉群落的组成均匀化。
{"title":"Composition and Structure of Tsuga caroliniana Engelm. Communities in the Southern Appalachian Mountains of Western North Carolina","authors":"T. Keyser, D. Styers, Marcus Wind, L. Dewald, B. Collins","doi":"10.1656/058.022.0109","DOIUrl":"https://doi.org/10.1656/058.022.0109","url":null,"abstract":"Abstract Tsuga caroliniana (Carolina Hemlock) is a species endemic to the southern Appalachian Mountains. Extant populations are under threat from the spread of introduced Adelges tsugae (Hemlock Woolly Adelgid), and information necessary to inform Carolina Hemlock conservation and future restoration efforts is limited. Our research characterized the structure and composition of Carolina Hemlock communities in the middle of its geographic range. We identified 5 sites where Carolina Hemlock comprised a major component of the stand. We collected data on structure, composition, and physiography in four 0.05-ha plots at each site. We quantified density and diversity of the overstory (≥5 cm dbh) and regeneration (<5 cm dbh) layers and used non-metric multidimensional scaling (NMS) to characterize species composition. At all but 1 site, Carolina Hemlock possessed the greatest importance value. Aspect, basal area, and species diversity varied only slightly among the sites. Overstory species composition was distinct at each site, while that of the regeneration layer was similar. Only 3% of the stems in the regeneration layer were Carolina Hemlock, with the seedling layer dominated by Acer (maple) species. Consequently, overstory mortality following disturbance will likely result in the recruitment of shade-tolerant species, maples in particular, which would homogenize the composition of these 5 distinct Carolina Hemlock communities.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"376 1 1","pages":"57 - 77"},"PeriodicalIF":0.6,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75711833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Abstract Canis rufus (Red Wolf) is one of the most endangered mammals in North America. However, genes of the Red Wolf persist across much of the species' original range, carried predominantly within C. latrans (Coyote) populations. It is now known that such genes are distributed from extreme north-central Texas through most of eastern Texas to southern Louisiana. Publicizing of the most recent findings of Red Wolf genes in Coyotes of southern Louisiana emphasized that area for intensive conservation efforts. Such efforts could be applied throughout the entire known distribution of those rare genes, not just in the small area of southern Louisiana recently publicized. Because conservation efforts might be hindered by local conditions and circumstances, expanding geographic options for their application could make the difference in their success.
{"title":"A Plea for Red Wolf Conservation throughout Its Recent Distribution","authors":"L. Mech, R. Nowak","doi":"10.1656/058.022.0111","DOIUrl":"https://doi.org/10.1656/058.022.0111","url":null,"abstract":"Abstract Canis rufus (Red Wolf) is one of the most endangered mammals in North America. However, genes of the Red Wolf persist across much of the species' original range, carried predominantly within C. latrans (Coyote) populations. It is now known that such genes are distributed from extreme north-central Texas through most of eastern Texas to southern Louisiana. Publicizing of the most recent findings of Red Wolf genes in Coyotes of southern Louisiana emphasized that area for intensive conservation efforts. Such efforts could be applied throughout the entire known distribution of those rare genes, not just in the small area of southern Louisiana recently publicized. Because conservation efforts might be hindered by local conditions and circumstances, expanding geographic options for their application could make the difference in their success.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"46 1","pages":"N23 - N27"},"PeriodicalIF":0.6,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86341961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Aric B. McKinney, Karena N. Barlow, Hannah E. Adams, Jon White, K. Kellner, Patrick J. Ruhl
Abstract - Foraging-intensity models predict that consumers balance the costs of environmental risk factors, food availability, predation, and starvation to determine the optimal foraging rate response. To test the assumptions of these ecological models in situ, we used radio frequency identification (RFID) to monitor the foraging behavior of 5 individual Baeolophus bicolor (Tufted Titmice) at bird feeders from January to February 2021. We used a Poisson generalized linear mixed effects model to determine how temperature and seed type impacted the number of daily feeder visits, while controlling for feeder and individual ID. We documented increased foraging frequency for Titmice in colder, snowier conditions. Titmice also exhibited a strong preference for whole black oil sunflower seeds (with an intact outer shell), in contrast to sunflower hearts (with the shell removed).
{"title":"Foraging Intensity of Tufted Titmice (Baeolophus bicolor) in Response to Feed Type and Extreme Winter Conditions","authors":"Aric B. McKinney, Karena N. Barlow, Hannah E. Adams, Jon White, K. Kellner, Patrick J. Ruhl","doi":"10.1656/058.022.0107","DOIUrl":"https://doi.org/10.1656/058.022.0107","url":null,"abstract":"Abstract - Foraging-intensity models predict that consumers balance the costs of environmental risk factors, food availability, predation, and starvation to determine the optimal foraging rate response. To test the assumptions of these ecological models in situ, we used radio frequency identification (RFID) to monitor the foraging behavior of 5 individual Baeolophus bicolor (Tufted Titmice) at bird feeders from January to February 2021. We used a Poisson generalized linear mixed effects model to determine how temperature and seed type impacted the number of daily feeder visits, while controlling for feeder and individual ID. We documented increased foraging frequency for Titmice in colder, snowier conditions. Titmice also exhibited a strong preference for whole black oil sunflower seeds (with an intact outer shell), in contrast to sunflower hearts (with the shell removed).","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"7 1","pages":"43 - 56"},"PeriodicalIF":0.6,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84269968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Rebecca A. Bearden, Amelia C. Grider, B. Holt, S. McGregor
Abstract - Beginning in 2005, several projects were conducted to update our knowledge of the understudied crayfish fauna in Alabama. Numerous new crayfish records were secured that narrowed collection coverage gaps statewide and boosted records from under-sampled habitat types. The culmination of this work eventually led to publication of the comprehensive book Crayfishes of Alabama. Most of the material secured was identifiable and included numerous new state, drainage, and physiographic records. However, without Form I males, some material could not be verified to species. Specimens of 2 females that resembled Procambarus barbiger (Jackson Prairie Crayfish) were collected during those efforts, 1 each from 2 locations in Sumter County, AL, near the Mississippi state line. That species was unknown in the state at the time and was included in the book as a species that hypothetically could occur in the state. Post-publication, we collected a Form I male incidental to insect trapping at a third Sumter County location that verified the identification, bringing the state total to 100 known species.
{"title":"Alabama's Crayfish Species Count Reaches Century Mark: Confirmation of Procambarus barbiger Occurring in Alabama","authors":"Rebecca A. Bearden, Amelia C. Grider, B. Holt, S. McGregor","doi":"10.1656/058.022.0108","DOIUrl":"https://doi.org/10.1656/058.022.0108","url":null,"abstract":"Abstract - Beginning in 2005, several projects were conducted to update our knowledge of the understudied crayfish fauna in Alabama. Numerous new crayfish records were secured that narrowed collection coverage gaps statewide and boosted records from under-sampled habitat types. The culmination of this work eventually led to publication of the comprehensive book Crayfishes of Alabama. Most of the material secured was identifiable and included numerous new state, drainage, and physiographic records. However, without Form I males, some material could not be verified to species. Specimens of 2 females that resembled Procambarus barbiger (Jackson Prairie Crayfish) were collected during those efforts, 1 each from 2 locations in Sumter County, AL, near the Mississippi state line. That species was unknown in the state at the time and was included in the book as a species that hypothetically could occur in the state. Post-publication, we collected a Form I male incidental to insect trapping at a third Sumter County location that verified the identification, bringing the state total to 100 known species.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"16 1","pages":"N13 - N16"},"PeriodicalIF":0.6,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75400328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Phillip A. Barlow, Brady S. Dunaway, JoVonn G. Hill
Abstract - Understanding interactions between insects and the flora of the Black Belt Prairie is imperative to the conservation of this waning ecosystem. Spiranthes magnicamporum (Great Plains Lady's Tresses) is an imperiled orchid found in the prairies of Mississippi. In the fall of 2020, we examined several clusters of S. magnicamporum at a remnant prairie in Osborn, MS. Over a period of 3 weeks, we observed each cluster for 30 minutes, both during the day and at night, and collected any insects interacting with S. magnicamporum. We found possible evidence of Bombus fraternus (Southern Plains Bumble Bee) pollination and recorded floral visitation by other insects. This information can help land management professionals better understand how to promote healthy populations of S. magnicamporum.
{"title":"Insect Interactions of Spiranthes Magnicamporum (Orchidacea) in the Black Belt Prairie of Mississippi","authors":"Phillip A. Barlow, Brady S. Dunaway, JoVonn G. Hill","doi":"10.1656/058.022.0103","DOIUrl":"https://doi.org/10.1656/058.022.0103","url":null,"abstract":"Abstract - Understanding interactions between insects and the flora of the Black Belt Prairie is imperative to the conservation of this waning ecosystem. Spiranthes magnicamporum (Great Plains Lady's Tresses) is an imperiled orchid found in the prairies of Mississippi. In the fall of 2020, we examined several clusters of S. magnicamporum at a remnant prairie in Osborn, MS. Over a period of 3 weeks, we observed each cluster for 30 minutes, both during the day and at night, and collected any insects interacting with S. magnicamporum. We found possible evidence of Bombus fraternus (Southern Plains Bumble Bee) pollination and recorded floral visitation by other insects. This information can help land management professionals better understand how to promote healthy populations of S. magnicamporum.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"8 1","pages":"28 - 35"},"PeriodicalIF":0.6,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74779959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Nashaly N. Cortés-Viruet, Melquisedec Gamba-Ríos, Frank N. Ridgley
Abstract - Tyto furcata pratincola (American Barn Owl) is a widespread bird of prey with great adaptability that can be found in partially urbanized areas. We examined the prey composition of a pair of American Barn Owls through dissection and analysis of a subset of cast pellets found at a roost site in an urban park in South Florida by comparing hair, bone, and teeth to online identification guides and museum specimens. The main identified prey species were rodents, with Sigmodon hispidus (Hispid Cotton Rat) accounting for 63.0% of all prey identified. Within the home range of these owls were 9 known colonies of endangered and common species of bats, but no evidence of depredation was found in the pellet analysis. Other small mammals, reptiles, and invertebrates made up the remainder of the diet, which is consistent with other similar studies in more natural settings.
{"title":"Diet Composition of a Pair of Tyto furcata pratincola (American Barn Owl) in an Urban Park and Natural Area Fragment in South Florida","authors":"Nashaly N. Cortés-Viruet, Melquisedec Gamba-Ríos, Frank N. Ridgley","doi":"10.1656/058.022.0102","DOIUrl":"https://doi.org/10.1656/058.022.0102","url":null,"abstract":"Abstract - Tyto furcata pratincola (American Barn Owl) is a widespread bird of prey with great adaptability that can be found in partially urbanized areas. We examined the prey composition of a pair of American Barn Owls through dissection and analysis of a subset of cast pellets found at a roost site in an urban park in South Florida by comparing hair, bone, and teeth to online identification guides and museum specimens. The main identified prey species were rodents, with Sigmodon hispidus (Hispid Cotton Rat) accounting for 63.0% of all prey identified. Within the home range of these owls were 9 known colonies of endangered and common species of bats, but no evidence of depredation was found in the pellet analysis. Other small mammals, reptiles, and invertebrates made up the remainder of the diet, which is consistent with other similar studies in more natural settings.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"9 1","pages":"21 - 27"},"PeriodicalIF":0.6,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82005967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Betsy A. Evans, J. A. Klassen, D. Gawlik, Andrew D. Gottlieb
Abstract - Infrastructure associated with a growing human population has disrupted hydrologic patterns and impacted wetland species such as Mycteria americana (Wood Stork). However, storks are commonly observed foraging along roadways in created wetlands and nesting in urban environments, suggesting that these areas may provide novel foraging habitat. We sampled both permanently inundated and ephemeral created wetlands to determine which hydrologic, vegetative, and physical attributes are associated with high stork prey biomass. Factors influencing stork prey biomass differed between permanently inundated and ephemeral created wetlands. Landscape-level vegetation and the physical properties of a wetland were more influential in permanently inundated ponds and canals whereas local-scale vegetation and hydrologic conditions were most influential in ephemeral ponds and swales. Furthermore, aquatic fauna biomass in permanently inundated created wetlands was 9x greater than in natural wetlands, and aquatic fauna biomass was even greater in the urban landscape. These findings suggest that created wetlands may serve as additional foraging habitat for Wood Storks. As natural wetlands continue to be lost and managed for human purposes, created wetlands should be considered in conservation plans and future management decisions for Wood Storks and other wading birds given their ability to produce wading bird prey.
{"title":"Factors Influencing Wood Stork Prey Biomass in Roadside Created Wetlands","authors":"Betsy A. Evans, J. A. Klassen, D. Gawlik, Andrew D. Gottlieb","doi":"10.1656/058.022.0101","DOIUrl":"https://doi.org/10.1656/058.022.0101","url":null,"abstract":"Abstract - Infrastructure associated with a growing human population has disrupted hydrologic patterns and impacted wetland species such as Mycteria americana (Wood Stork). However, storks are commonly observed foraging along roadways in created wetlands and nesting in urban environments, suggesting that these areas may provide novel foraging habitat. We sampled both permanently inundated and ephemeral created wetlands to determine which hydrologic, vegetative, and physical attributes are associated with high stork prey biomass. Factors influencing stork prey biomass differed between permanently inundated and ephemeral created wetlands. Landscape-level vegetation and the physical properties of a wetland were more influential in permanently inundated ponds and canals whereas local-scale vegetation and hydrologic conditions were most influential in ephemeral ponds and swales. Furthermore, aquatic fauna biomass in permanently inundated created wetlands was 9x greater than in natural wetlands, and aquatic fauna biomass was even greater in the urban landscape. These findings suggest that created wetlands may serve as additional foraging habitat for Wood Storks. As natural wetlands continue to be lost and managed for human purposes, created wetlands should be considered in conservation plans and future management decisions for Wood Storks and other wading birds given their ability to produce wading bird prey.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"17 1","pages":"1 - 20"},"PeriodicalIF":0.6,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78608473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Jacqueline Bort Thornton, Michael E. Richlen, Thaddeus B. McDonald, Joel T. Bell
Abstract - During a marine mammal vessel survey, a single Perimyotis subflavus (Tricolored Bat) was sighted 103.5 km off the coast of North Carolina. While we cannot determine whether the bat flew unaided from the mainland or stowed away on a ship, this is likely the furthest offshore sighting for the species. The possibility of Tricolored Bats flying offshore could have implications for wind-energy programs or other offshore industries.
{"title":"Opportunistic Offshore Sighting of a Tricolored Bat (Perimyotis subflavus)","authors":"Jacqueline Bort Thornton, Michael E. Richlen, Thaddeus B. McDonald, Joel T. Bell","doi":"10.1656/058.022.0106","DOIUrl":"https://doi.org/10.1656/058.022.0106","url":null,"abstract":"Abstract - During a marine mammal vessel survey, a single Perimyotis subflavus (Tricolored Bat) was sighted 103.5 km off the coast of North Carolina. While we cannot determine whether the bat flew unaided from the mainland or stowed away on a ship, this is likely the furthest offshore sighting for the species. The possibility of Tricolored Bats flying offshore could have implications for wind-energy programs or other offshore industries.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"5 1","pages":"N9 - N12"},"PeriodicalIF":0.6,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74299398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Ashleigh B. Cable, Emma V. Willcox, C. Holliday, Christopher Ogle, R. Gerhold
Abstract - Alopecia in bats has been related to multiple stressors, such as ectoparasite infestations, environmental contaminant exposure, idiopathic disease, and reproductive stress. Here we note occurrences of alopecia in 2 species of insectivorous bats, including a federally endangered species. In the summer of 2022, we encountered 3 Eptesicus fuscus (Big Brown Bat) and 7 Myotis grisescens (Gray Bat) with alopecia during mist-net and harp-trap surveys at multiple locations in Tennessee, USA. Seven of the 10 bats with bald spots were adult lactating or post-lactating females, 1 was an adult pregnant female, and 2 were adult nonreproductive males. No bats with alopecia were encountered after the lactation or post-lactation time period, despite continued mist-net and harp-trap surveys. The cause of the alopecia is unknown and warrants further investigation of prevalence across pre-reproductive (pre-pregnancy), reproductive (pregnancy, lactation, and spermatogenesis), and post-reproductive (pup volancy) periods in these populations. Understanding natural molt cycles versus alopecia as an outward sign of stress in individuals is critical for assessing the health of bat populations.
{"title":"Alopecia in Two Species of Insectivorous Bats during the Critical Time Period of Female Reproduction","authors":"Ashleigh B. Cable, Emma V. Willcox, C. Holliday, Christopher Ogle, R. Gerhold","doi":"10.1656/058.022.0105","DOIUrl":"https://doi.org/10.1656/058.022.0105","url":null,"abstract":"Abstract - Alopecia in bats has been related to multiple stressors, such as ectoparasite infestations, environmental contaminant exposure, idiopathic disease, and reproductive stress. Here we note occurrences of alopecia in 2 species of insectivorous bats, including a federally endangered species. In the summer of 2022, we encountered 3 Eptesicus fuscus (Big Brown Bat) and 7 Myotis grisescens (Gray Bat) with alopecia during mist-net and harp-trap surveys at multiple locations in Tennessee, USA. Seven of the 10 bats with bald spots were adult lactating or post-lactating females, 1 was an adult pregnant female, and 2 were adult nonreproductive males. No bats with alopecia were encountered after the lactation or post-lactation time period, despite continued mist-net and harp-trap surveys. The cause of the alopecia is unknown and warrants further investigation of prevalence across pre-reproductive (pre-pregnancy), reproductive (pregnancy, lactation, and spermatogenesis), and post-reproductive (pup volancy) periods in these populations. Understanding natural molt cycles versus alopecia as an outward sign of stress in individuals is critical for assessing the health of bat populations.","PeriodicalId":49490,"journal":{"name":"Southeastern Naturalist","volume":"21 1","pages":"N1 - N8"},"PeriodicalIF":0.6,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75868118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：