Journal of Mammalogy最新文献

{"title":"Assessment of spatial and temporal overlap between wildcats (<i>Felis silvestris</i>) and domestic cats (<i>Felis catus</i>) in northeastern Iberia.","authors":"Ignasi Fernández-Cabello, Marc Vilella, Eric Serratosa, Ariadna Sanglas, Nerea Fernandez-Arrieta, Santiago Palazón, Joan Real, Salvador Salvador, Roger Puig-Gironès, Ferran Sayol","doi":"10.1093/jmammal/gyag037","DOIUrl":"10.1093/jmammal/gyag037","url":null,"abstract":"<p><p>Presence of domestic species can cause multiple impacts on natural ecosystems, especially when wild close relatives are also present. The European Wildcat is an excellent example, facing major conservation threats due to the presence of domestic cats in natural environments. Their interactions can result in varying levels of hybridization, disease transmission, and ecological competition across different regions. Here, we studied spatiotemporal overlap of both species using over 300 camera traps located in more than 30 plots across Catalonia (NE Spain). Occupancy and detectability of the wildcat were not significantly influenced by the relative abundance of domestic cats. However, we observed a high spatial segregation between both species, which could help to explain the relatively low hybridization rate in this area. Daily activity patterns of the 2 cat species showed higher overlap during the mating period than during the non-mating period. Domestic cat activity patterns shifted in those areas with presence of wildcats only during the non-mating period, while the presence of domestic cats had no effect on wildcat activity. Thus, wildcat estrus could influence the activity times of domestic cats, whose active hours show increased overlap with those of wildcats during the mating period. Wildcat conservation measures could focus on enhancing spatial segregation in those regions where hybridization is more persistent, reducing domestic cat incursions in natural areas, while monitoring wildcat distribution and range expansion into areas with a high risk of encounters with domestic cats.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"474-487"},"PeriodicalIF":1.7,"publicationDate":"2026-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271765/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Caribou balance winter range fidelity and plasticity in response to weather, pregnancy, and summer range conditions.","authors":"Timothy J Fullman, Brian T Person, Shawna Karpovich, Alexander K Prichard, Joelle Hepler, Alain F Zuur","doi":"10.1093/jmammal/gyag039","DOIUrl":"10.1093/jmammal/gyag039","url":null,"abstract":"<p><p>In variable environments, animals can remain in place and tolerate changes or move to areas with favorable conditions. Species must balance the costs and benefits of site fidelity and behavioral plasticity in acclimating to rapidly changing environments. We investigated winter fidelity and behavioral plasticity of the Teshekpuk Caribou Herd (TCH) in Alaska. Using GPS telemetry data for 192 female Caribou (<i>Rangifer tarandus</i>) from 2004 to 2021, we identified patterns of winter distribution and how they changed compared to reports from 1990 to 2015. We investigated fidelity to wintering areas by comparing observed use of wintering areas with expectations based on area, distance, and sociality. We then examined intrinsic and extrinsic factors correlated with TCH winter distribution patterns using generalized additive mixed models to better understand how resources may influence use of wintering areas for the herd. Caribou used the same 4 wintering areas reported in prior studies, but increased use of the eastern wintering areas recently. TCH Caribou appeared to balance site fidelity and behavioral plasticity. Caribou exhibited some winter fidelity, with reuse of winter areas exceeding expectations, but still often changed wintering areas across years. Distribution among wintering areas varied with both intrinsic and extrinsic factors including summer and fall weather and, to a lesser extent, pregnancy, age, forage condition, and insect harassment. Weather variables had strong effects, with warmer fall air temperatures and lower precipitation corresponding to increased likelihood of animals forgoing migration to the southern mountains and instead overwintering on northern coastal plain tundra. Pregnant Caribou also were more likely to remain on the coastal plain overwinter. The flexibility of Caribou exhibiting both winter fidelity and plasticity may enhance robustness to environmental changes, but increased use of areas near industrial development emphasizes the importance of continued monitoring. Researchers should consider fidelity and behavioral plasticity across scales to inform effective management under changing conditions.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 4","pages":"696-713"},"PeriodicalIF":1.7,"publicationDate":"2026-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13416195/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148622374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evidence of <i>in situ</i> hybridization between trans-Andean tamarin species (Callitrichidae<i>, Oedipomidas</i>) in northwestern Colombia.","authors":"Ana María Pérez-Estrada, Iván Darío Soto-Calderón","doi":"10.1093/jmammal/gyag038","DOIUrl":"10.1093/jmammal/gyag038","url":null,"abstract":"<p><p>Hybridization between tamarins of the genus <i>Oedipomidas</i> (Callitrichidae) has recently been reported in captivity; however, no cases are known to have occurred in the wild. Here, we provide morphological and genetic evidence of the first known case of hybridization between the Cotton-top Tamarin (<i>Oedipomidas oedipus</i>) and Geoffroy's Tamarin (<i>O. geoffroyi</i>), which was incidentally found in the wild in northwestern Colombia. We compared the pelage color patterns of the 2 putative parents and the presumptive hybrid, genotyped 10 microsatellite loci and sequenced the mitochondrial hypervariable region I for the individuals of interest. The hybrid exhibits an intermediate phenotype between the parental species, shares alleles with each putative parent for all microsatellite loci, and a mitochondrial haplotype identical to that of the candidate dam. Our results are consistent with a first-generation hybridization event, with implications for understanding the evolution of trans-Andean tamarins and conservation.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"668-674"},"PeriodicalIF":1.7,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271767/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"When the desert dries: rainfall drives conflicts and conservation challenges for onager (<i>Equus hemionus onager</i>).","authors":"Saeideh Esmaeili, Kathryn A Schoenecker, Mahmoud-Reza Hemami, Petra Kaczensky, Chris Walzer, Jacob R Goheen","doi":"10.1093/jmammal/gyag017","DOIUrl":"10.1093/jmammal/gyag017","url":null,"abstract":"<p><p>Increasingly, the conservation of large and wide-ranging animals is challenged by environmental variability, static boundaries of protected areas, and the expansion of human activities. The Critically Endangered Onager (<i>Equus hemionus onager</i>) exemplifies these issues in Qatrouiyeh National Park (QNP) and the surrounding Bahram-e-Goor Protected Area (BPA) in Iran. Using GPS telemetry data from 9 adult females tracked over 2 years, we examined seasonal patterns in movement and incursions into cultivated lands in 2017 and 2018. Net squared displacement analyses indicated that most individuals exhibited range-resident behavior with occasional nomadic movements, with no evidence for migration (i.e., predictable movements to and from distinct seasonal ranges). Both monthly home range size and monthly movement rate varied seasonally, peaking in late spring and early summer (May-July). Individual home ranges were between 257 and 1,928 km², while the extrapolated population-level home range (718 km²; 95% confidence interval = 276-1368) extended well outside QNP, covering large portions of the BPA. Occurrence distributions also expanded beyond the protected area into adjacent cultivated lands, highlighting the use of human-occupied areas by onagers. We recorded 2,285 (out of 72,168) GPS locations within cultivated lands and their surrounding 50 m buffer, with 60% of these incursions occurring immediately adjacent to QNP. Most incursions occurred at night and were strongly associated with both season and cumulative rainfall over the preceding 9 months. These findings emphasize how rainfall-driven variability in resource dynamics shapes the spatial distribution and behavior of onagers, thus elevating the risk of conflict with humans. The scale and seasonality of Onager movements highlight the need for flexible, landscape-level conservation strategies that extend beyond fixed park boundaries to encompass critical habitats and to mitigate conflict across the broader region.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"462-473"},"PeriodicalIF":1.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Small mammal community in the largest urban forest in the Americas, southeastern Brazil.","authors":"Raquel Gonzalez Boullosa, Thiago Dos Santos Cardoso, Leonardo Morgado, Mariana da Silva Batista, Sócrates Fraga da Costa Neto, Rosana Gentile","doi":"10.1093/jmammal/gyag026","DOIUrl":"10.1093/jmammal/gyag026","url":null,"abstract":"<p><p>Human activities directly influence the diversity, abundance and distribution of species. The loss of species in forested areas-called the defaunation process-is an outcome of anthropogenic processes, especially in forest remnants close to urban and rural areas. The aim of this study was to evaluate small mammal diversity in a forest-urban interface area at the largest urban forest in the Americas, in the city of Rio de Janeiro, Brazil. Seven small mammal species were captured: the marsupials <i>Didelphis aurita, Marmosa paraguayana</i>, <i>Metachirus myosuros</i>, and <i>Monodelphis americana</i>; and the rodents <i>Akodon cursor</i>, <i>Oligoryzomys nigripes</i>, and <i>Trinomys dimidiatus</i>. The common opossum <i>D. aurita</i> was dominant in the community. Beta diversity indices revealed little variation among types of environments and over time. Species richness of the small mammal community in the study area was lower than that reported in the literature. The study area contained a fixed set of core species in the community over time and among environments (peridomicile, disturbed forest, and preserved forest), with the presence of less abundant species in some periods and environments. Small mammal species richness observed was lower than in preserved areas, when compared with other studies. Historical, ecological, and anthropogenic characteristics of the area may have contributed to its low diversity.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"627-636"},"PeriodicalIF":1.7,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271762/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of passive integrated transponder tags to assess movements and demography of Townsend's Big-eared Bat (<i>Corynorhinus townsendii</i>) in Colorado.","authors":"Daniel J Neubaum, Jeremy L Siemers, Phillip Nyland, Kellen M Keisling, Terutaka Funabashi","doi":"10.1093/jmammal/gyag014","DOIUrl":"10.1093/jmammal/gyag014","url":null,"abstract":"<p><p>Determining bat seasonal roost use, demographic rates (fidelity and survival), and movements are necessary metrics to rigorously evaluate population status and trends. Little is known about these metrics for Townsend's big-eared bats (<i>Corynorhinus townsendii</i>), a state and federal sensitive species, in Colorado. Therefore, our objectives were to monitor daily use of a large maternity colony (∼ 900 bats) inside a gated mine from 2011 to 2025 by marking bats with PIT tags (<i>n </i>= 840), evaluate their tolerance of the disturbance, assess seasonal patterns, and estimate demographic rates for this species. Bats tagged as adults were regularly detected to reach 10 yr of age, with at least 1 individual reaching a minimum of 15 yr of age. Despite concerns of capture and tagging disturbance for this species, 90% of individuals were detected again at the maternity colony at least once during the same summer of tagging. We detected 46% of females and 41% of males at least once across subsequent years following tagging. Variation by age was apparent with juveniles detected during at least 1 subsequent maternity season at lower percentages than adults. Numbers of tagged individuals present varied seasonally but the pattern of seasonal variation was consistent across years. We confirmed autumn movement to a known hibernaculum in a cave 48 km north of the maternity roost for 31 tagged bats, indicating that summer colonies fragment for winter rather than moving as an intact group. These data represent the first documented summer-to-winter movement of PIT-tagged <i>C. townsendii</i> and suggest that short-distance, localized migrations to hibernacula are an over-wintering strategy for this species where resources permit. We documented loss of PIT tags by <i>C. townsendii</i> and accounted for it by generating minimum tag retention estimates. Apparent annual survival for adult females across all years was 0.74 (95% CI = 0.60-0.87), similar to that for other PIT tag studies of bat species. Adult females and juvenile males showed high site fidelity with yearly return probabilities above 0.95, whereas estimates for juvenile females were lower (0.80). Our data show that PIT tags can be used to mark and monitor <i>C. townsendii</i> safely, providing managers with rigorous demographic data that can guide management actions.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"497-509"},"PeriodicalIF":1.7,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Describing the whiskers of a semi-aquatic caniform: the Eurasian Otter (<i>Lutra lutra</i>).","authors":"Amisha A Nakhwa, Vicki Breakell, Lewis Chambers, Sally Holt, Sarah Roberts, Robyn A Grant","doi":"10.1093/jmammal/gyag021","DOIUrl":"10.1093/jmammal/gyag021","url":null,"abstract":"<p><p>Recent research has identified specializations in whisker shape and material in aquatic species, such as pinnipeds, that serve to increase the stiffness of their whiskers to allow for precise positioning underwater. The whiskers of semi-aquatic species are thought to be somewhat intermediary between aquatic and terrestrial species, but have been fairly overlooked, especially when compared to pinnipeds, which are easily trained and widely available in zoological collections. In this study, we describe the whiskers of the Eurasian Otter (<i>Lutra lutra</i>), including their shape, layout, musculature, movement, and control behaviours. <i>Lutra lutra</i> have 38 to 43 long mystacial whiskers. Taper, base width, and length are strong predictors of whisker shape. Whisker arrangement varies somewhat between individuals, especially in the 5 dorsal-most rows, which are rather disorganized with regard to both layout and intrinsic musculature. The whiskers can be protracted underwater using intrinsic muscles, as well as adapted extrinsic muscles (Pars interna profunda and Pars maxillaris). Whisker movements are common in <i>L. lutra</i>, as well as other contact-related control behaviors, including contact-induced asymmetry. The large numbers of whiskers, the regularity of whisker movements and specializations in whisker shape and muscles demonstrate the importance of whisker sensing in <i>L. lutra</i>. Despite this, <i>L. lutra</i> whiskers lack any adaptations in cross-sectional shape, such as oval shapes and undulations that occur in phocids. Nevertheless, studying the whiskers of semi-aquatic mammals reveals their specialized sensory adaptations to the aquatic environment, and can give us insights into the evolution of mammalian somatosensory systems.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 3","pages":"450-461"},"PeriodicalIF":1.7,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13271763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148273563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emerging risks at the vampire bat-prion interface: implications for wildlife, livestock, and public health.","authors":"Lexi E Frank, Jason C Bartz, Peter A Larsen","doi":"10.1093/jmammal/gyag004","DOIUrl":"10.1093/jmammal/gyag004","url":null,"abstract":"<p><p>The role of the Common Vampire Bat (<i>Desmodus rotundus</i>) as a vector for chronic wasting disease (CWD) remains uninvestigated, and the effects of prion exposure in vampire bats are unknown. <i>Desmodus</i> feeds on the blood of various animals including deer, livestock, and humans across its expansive distribution. Given the continued southward spread of CWD in North American cervid populations and potential for the disease to already be circulating in Mexico, where it may overlap with established <i>Desmodus</i> populations, it is critical to assess potential risks at the interface between vampire bats and prion-infected hosts. <i>Desmodus</i> is also predicted to expand its range northward, potentially establishing populations in CWD-endemic regions of the southern United States, further underscoring the need for proactive surveillance and research on the ecological and epidemiological implications of this emerging interface. We explore aspects of prion biology and the natural history of <i>Desmodus</i>, highlighting factors that may contribute to prion exposure events among vampire bats and sympatric mammals. In light of <i>Desmodus</i> feeding behaviors, vampire bats could experience elevated prion exposures over time if they encounter CWD-positive prey. We recommend risk assessments and surveillance to evaluate vampire bat-prion transmission pathways that could impact mammalian wildlife, livestock, and human health.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 2","pages":"400-406"},"PeriodicalIF":1.7,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13035270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147595893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of reproductive status on foraging behavior and fecal glucocorticoid metabolite levels in wild bat-eared foxes (<i>Otocyon megalotis</i>).","authors":"Aliza le Roux, Keafon R Jumbam, André Ganswindt","doi":"10.1093/jmammal/gyag011","DOIUrl":"10.1093/jmammal/gyag011","url":null,"abstract":"<p><p>Diet may be fundamental to the extensive paternal care and reduced maternal care seen in bat-eared foxes (<i>Otocyon megalotis</i>). This termite-specialist would struggle to increase its energy intake by hunting large prey or provisioning such items to mates or pups. Consequently, lactating, physiologically challenged females need to invest more time in foraging, while males spend time with pups. However, there is little empirical evidence of the impacts of parental care on foraging behavior and stress-related hormone levels in free-living bat-eared foxes. We studied foraging behavior in 20 wild bat-eared foxes for 2 years, investigating how foraging behavior and fecal glucocorticoid metabolite (fGCM) levels varied with austral season in the study population. Thereafter, we evaluated how parental status may affect foraging rates, food sizes consumed, and fGCM levels as a proxy for physiological stress. We examined these changes in parents (<i>n </i>= 3) and non-parents (<i>n </i>= 17) as seasonal \"activity\" changed-that is, breeding season (pregnant phase), denning season (pup-rearing and guarding phase), and non-breeding season (independent adult phase). Small item consumption patterns mirrored overall foraging rates, which were lowest for all foxes in winter. Males increased foraging rates in spring, while all individuals ate more large items in summer. Mean fGCM levels in the population (0.41 µg g^-1 organic content) were not affected by sex or austral season, but changed with seasonal activities, for parents in particular: parents had significantly lower fGCM levels in the breeding season. This may reflect reduced stress in these foxes, who successfully paired and increased their within-family socialization during the breeding season. Our findings suggest that behavioral adaptations, including foraging adaptations, are sufficient for bat-eared foxes to meet the physiological challenges of parenting. This is the first study to start unravelling the relationship between foraging rates, parenting behavior, and stress-related hormone levels in the Bat-eared Fox.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 2","pages":"221-227"},"PeriodicalIF":1.7,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13035264/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147595829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occupancy and activity patterns of a newly white-nose syndrome infected species in Texas, the Tricolored Bat (<i>Perimyotis subflavus</i>).","authors":"Sarah Rebecah Fritts, Madison Paige Gover, Maria Alessandra Ramirez, Donal I Solick, Michael R J Forstner, Samantha Leivers, Madison Taylor Nadler","doi":"10.1093/jmammal/gyag009","DOIUrl":"10.1093/jmammal/gyag009","url":null,"abstract":"<p><p><i>Perimyotis subflavus</i> was once a common and widely distributed species of bat in the United States before white-nose syndrome (WNS) caused devastating population-level declines. The species has now been recommended for listing as federally endangered, although the ruling has not yet been finalized. Though WNS was discovered in the United States in 2006, Texas is currently at the leading edge of the expansion of the disease into the southwest. The first documentation of WNS occurred in Texas in 2020, when a die-off of <i>Myotis velifer</i> occurred; in 2024, WNS was detected on <i>P. subflavus</i> in Texas. To better manage populations of <i>P. subflavus</i> across Texas, it is imperative to fill knowledge gaps regarding seasonal distribution and activity of the species across the state, as well as habitat associations. Thus, our objectives were to assess the influence of weather and landcover on: (i) seasonal occupancy; (ii) nightly activity; (iii) hourly activity; (iv) the log-odds of a call being from <i>P. subflavus</i> if any bat was acoustically active; and (v) to examine diel activity patterns among seasons and Ecoregions. Activity varied by season and Ecoregion. Broadly, results suggest landcover-particularly forest (positive), wetland (positive), and urban (negative)-influenced occupancy probability, whereas weather more greatly influenced activity. Generally, activity was positively influenced by temperature, negatively influenced by wind speed and precipitation, and the effects of humidity varied seasonally. The log-odds of a call being <i>P. subflavus</i> given that any bat was acoustically active followed a similar pattern to overall activity. Results confirm widespread distribution of <i>P. subflavus</i> across Texas as well as provide baseline information on the influences of landscape characteristics and weather on activity for the 3-year period of 2020 to 2023, just prior to the first WNS detection for this species in this state.</p>","PeriodicalId":50157,"journal":{"name":"Journal of Mammalogy","volume":"107 2","pages":"310-322"},"PeriodicalIF":1.7,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13253574/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148254286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}