The Texas Journal of Science最新文献_第3页

NEW SPECIES RECORDS OF MANTODEA, ORTHOPTERA, AND PHASMATODEA IN THE STATE OF TEXAS (USA) 美国德克萨斯州螳螂亚目、直翅目和蝽目新种记录

The Texas Journal of Science Pub Date : 2021-01-01 DOI: 10.32011/txjsci_73_1_article6

J. Stidham, T. Stidham

引用次数: 0

LATE PLEISTOCENE SHASTA GROUND SLOTH (XENARTHRA) DUNG, DIET, AND ENVIRONMENT FROM THE SIERRA VIEJA, PRESIDIO COUNTY, TEXAS 德克萨斯州普雷西迪奥县sierravieja的晚更新世沙斯塔地懒粪便、饮食和环境

The Texas Journal of Science Pub Date : 2021-01-01 DOI: 10.32011/TXJSCI_73_1_ARTICLE3

J. Mead, B. Schroeder, Chad Yost

{"title":"LATE PLEISTOCENE SHASTA GROUND SLOTH (XENARTHRA) DUNG, DIET, AND ENVIRONMENT FROM THE SIERRA VIEJA, PRESIDIO COUNTY, TEXAS","authors":"J. Mead, B. Schroeder, Chad Yost","doi":"10.32011/TXJSCI_73_1_ARTICLE3","DOIUrl":"https://doi.org/10.32011/TXJSCI_73_1_ARTICLE3","url":null,"abstract":"\u0000 We present new information about the Late Pleistocene Shasta ground sloth (Nothrotheriops shastensis). Spirit Eye Cave in the Sierra Vieja along the Rio Grande provides the newest evidence that the Shasta ground sloth inhabited further south in the mountains of the southwestern Trans-Pecos, Texas, than has been previously documented. The cave is one of only twelve known Nothrotheriops dung localities. During excavation of the cave, packrat middens and sloth dung were discovered. Two areas within the cave provide radiocarbon dated ground sloth dung and packrat midden macrobotanical remains which permit the reconstruction of the sloth diet and local biotic habitat at 30,800 and 12,900 calibrated YBP. The local community at 30,800 calibrated years ago was a pinyon-juniper woodland with yucca, sandpaper bush, globemallow, cactus, and barberry in the understory based on the packrat midden from the cave. The dung contents indicate that the diet of the sloth included C3 and C4 grasses along with Agave. Data for the local vegetation community and sloth diet from 12,900 years ago indicate that during this late glacial time, the region was still a pinyon-juniper woodland but also contained Celtis, Quercus, and Larrea, among other taxa.","PeriodicalId":54431,"journal":{"name":"The Texas Journal of Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44663148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

INTRAMOLECULARLY HYPERCOORDINATED ORGANOLEAD COMPOUNDS: (o-MeOC6H4-CH2)PbPh2R, R = Ph, Cl, WITH Pb–O SECONDARY BONDING 分子内超配位有机铅化合物：（o-MeOC6H4-CH2）PbPh2R，R=Ph，Cl，具有Pb–o二次键

The Texas Journal of Science Pub Date : 2021-01-01 DOI: 10.32011/TXJSCI_73_1_ARTICLE2

H. Sharma, A. Metta-Magaña, L. Saucedo, Marcela López-Cardoso, K. Pannell

引用次数: 0

PREDATION OF ARTIFICIAL GROUND NESTS AT LAGUNA CARTAGENA NATIONAL WILDLIFE REFUGE, LAJAS, PUERTO RICO 在拉古纳卡塔赫纳国家野生动物保护区，波多黎各拉哈斯，捕食人工地面巢穴

The Texas Journal of Science Pub Date : 2021-01-01 DOI: 10.32011/TXJSCI_73_1_NOTE2

J. C. Eitniear, M. J. Morel

{"title":"PREDATION OF ARTIFICIAL GROUND NESTS AT LAGUNA CARTAGENA NATIONAL WILDLIFE REFUGE, LAJAS, PUERTO RICO","authors":"J. C. Eitniear, M. J. Morel","doi":"10.32011/TXJSCI_73_1_NOTE2","DOIUrl":"https://doi.org/10.32011/TXJSCI_73_1_NOTE2","url":null,"abstract":"––––––––––––––––––––––––– Predation can have a profound impact on the population dynamics of a species. This impact is even greater in disturbed systems that contain exotic predators or where populations of natural predators are abnormally high. During our studies of waterfowl in Puerto Rico, we became concerned as to the possible impact of introduced rats and mongoose on nesting waterfowl. While previous publications have cited both the black rats (Rattus rattus) and the Javan (small Indian) mongoose (Herpestes auropunctautus) as West Indian whistling-duck (Dendrocygna arborea) egg predators (Birdlife International 2016), we found no published documentation to substantiate this activity. To explore this possible predation, and due to the difficulty of directly observing nests, we used motion detector cameras to monitor artificial nests baited with domesticated chicken (Gallus domesticus) eggs. Recent applications of game cameras include documentation of occurrence of rare species as well as new species records, nest predation studies, behavioral studies and activity budgets (Ellis-Felege & Carroll 2012). The use of artificial eggs in manufactured nests in conjunction with the use of game cameras is also a widely used method (Major & Kendal 1996). This paper reports on the use of this technique at Laguna Cartagena National Wildlife Refuge to determine possible egg predators of nesting West Indian whistling-ducks. West Indian whistling-ducks are endemic to the West Indies and considered “vulnerable” by Birdlife International (2016). While a systematic census has yet to be taken, it is estimated that there are at least 150 individuals on the island of Puerto Rico (Goodman et al. 2018).","PeriodicalId":54431,"journal":{"name":"The Texas Journal of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41826202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HOME RANGE AND HABITAT SELECTION OF CAVE-DWELLING NORTH AMERICAN PORCUPINES (ERETHIZON DORSATUM) IN CENTRAL TEXAS 德克萨斯州中部穴居北美豪猪的活动范围和栖息地选择

The Texas Journal of Science Pub Date : 2021-01-01 DOI: 10.32011/TXJSCI_73_1_ARTICLE4

Andrea E. Montalvo, R. Lopez, I. D. Parker, N. Silvy, S. Cooper, R. Feagin

{"title":"HOME RANGE AND HABITAT SELECTION OF CAVE-DWELLING NORTH AMERICAN PORCUPINES (ERETHIZON DORSATUM) IN CENTRAL TEXAS","authors":"Andrea E. Montalvo, R. Lopez, I. D. Parker, N. Silvy, S. Cooper, R. Feagin","doi":"10.32011/TXJSCI_73_1_ARTICLE4","DOIUrl":"https://doi.org/10.32011/TXJSCI_73_1_ARTICLE4","url":null,"abstract":"\u0000 North American porcupines (Erethizon dorsatum) have expanded their range into central Texas and are now frequent users of caves as den sites. What remains unknown is how caves affect their home range, and their local habitat preferences. This information is important for management decisions on Joint Base San Antonio – Camp Bullis where novel and abundant porcupine scat in caves could jeopardize federally endangered cave-obligate arthropods by allowing for the invasion of less specialized terrestrial species. To better understand porcupine home range and habitat use at Camp Bullis, we trapped four porcupines at cave entrances and fitted them with GPS collars. The 95% home range averaged 71.3 ha for females and measured 420.6 ha for the male. The 50% core habitat averaged 55.4 ha for females and measured 7.4 ha for the male. Porcupines typically stayed near the den-cave trap site except when visiting more diverse mixed forest patches. At the landscape and point levels, individuals selected for forested cover and avoided open areas. At the home range level, individuals selected for bare ground and roads, which were likely used to get from the cave den site to feed at mixed forest patches. Typically solitary, individuals in this study tolerated sharing a cave. Because of the small sample size and single sampling location, this study represents a pilot study and additional research is needed to establish concrete conclusions. Should cave managers need to limit the cave use by porcupines, a cave gate, exclosure, or reduction of forested cover would make caves less desirable.","PeriodicalId":54431,"journal":{"name":"The Texas Journal of Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45378630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FULLY AUTOMATED FABRICATION OF TWISTED COILED POLYMER ACTUATORS WITH PARAMETER CONTROL 具有参数控制的扭卷聚合物致动器的全自动制造

The Texas Journal of Science Pub Date : 2020-06-05 DOI: 10.32011/txjsci_72_1_note1

H. Ochoa, C. Timmons, C. Watts, Michael R. Lynn, Víctor Ortiz

引用次数: 1

EFFECTS OF HIGH URACIL DIET-INDUCED GUT DYSBIOSIS ON COURTSHIP BEHAVIOR IN DROSOPHILA 高尿嘧啶饮食诱导的肠道失调对果蝇求偶行为的影响

The Texas Journal of Science Pub Date : 2020-01-23 DOI: 10.32011/txjsci_72_1_article2

R. García, Camila Salcedo, R. C. Laughlin, M. Vélez-Hernández

引用次数: 0

DETERMINING FERAL PIG (SUS SCROFA) ATTRACTANT SELECTION PREFERENCE AND RESPONSE TO MOCK CORRAL TRAPS 确定野猪(sus scrofa)引诱剂的选择偏好和对模拟围栏陷阱的反应

The Texas Journal of Science Pub Date : 2020-01-23 DOI: 10.32011/txjsci_72_1_article1

M. Karlin, Harun A. Khan

引用次数: 2

A STATISTICAL ANALYSIS OF TRANS-RESVERATROL IN GRAPE CANE FROM TEN VARIETIES OF CULTIVATED WINE GRAPES (VITIS SPP.) 10个栽培酿酒葡萄品种甘蔗中反式白藜芦醇含量的统计分析

The Texas Journal of Science Pub Date : 2020-01-23 DOI: 10.32011/txjsci_72_1_article3

H. Rathburn, P. Bell, Scott A. Cook, Darrell D. Mayberry, Emryse Geye, R. Goodrich

引用次数: 1

QUANTIFYING HABITAT CONCEPTS: POPULATION IMPACTS OF STAGE-SPECIFIC SALINITY RELATIONSHIPS FOR BLACK DRUM (POGONIAS CROMIS) IN THE UPPER LAGUNA MADRE, TEXAS USA 量化栖息地概念：美国得克萨斯州上拉古纳马德雷黑鼓（POGONIAS-CROMIS）阶段特定盐度关系对种群的影响

The Texas Journal of Science Pub Date : 2020-01-01 DOI: 10.32011/txjsci_72_1_article10

Z. Olsen

{"title":"QUANTIFYING HABITAT CONCEPTS: POPULATION IMPACTS OF STAGE-SPECIFIC SALINITY RELATIONSHIPS FOR BLACK DRUM (POGONIAS CROMIS) IN THE UPPER LAGUNA MADRE, TEXAS USA","authors":"Z. Olsen","doi":"10.32011/txjsci_72_1_article10","DOIUrl":"https://doi.org/10.32011/txjsci_72_1_article10","url":null,"abstract":"\u0000 Environmental factors can often have population effects on aquatic organisms, though studies of environmental effects are often specific to a given life stage. Stage-structured demographic models provide a means of exploring the multivariate suite of life history parameters associated with a population and can provide a tool for understanding population-wide impacts of single stage events (e.g., mortality and fecundity). Here, the unique dynamics observed for an isolated population of black drum (Pogonias cromis) and the population-wide impacts of salinity as a driver of young-of-the-year (YOY) survival were investigated. This modeling exercise revealed that the dynamics observed in the black drum population are potentially driven by increased survival in the post-settler/YOY stage and that this increased survival is at least partially a result of the higher salinities that typify the Upper Laguna Madre of Texas, a hypersaline estuary (34% increase in population growth rate across the range of salinity examined). Early maturation in this population was also shown to have the potential to provide infrequent, large pulses of fecundity to the population. Quantifying the population-wide impact of such drivers can place management decisions into the context of the environment and provide both a proof-of-concept for specific management action and realistic expectations for managers and constituents alike. Without such formal quantification, it will be difficult for habitat concepts to move from an abstract management tool to widespread application.","PeriodicalId":54431,"journal":{"name":"The Texas Journal of Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48913486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1