Pub Date : 2021-05-17DOI: 10.1894/0038-4909-65.1.67
Celia López González
{"title":"THE SOUTHWESTERN ASSOCIATION OF NATURALISTS MINUTES OF THE MEETING OF THE BOARD OF GOVERNORS AND OFFICERS AT THE 66th ANNUAL MEETING, UNIVERSIDAD AUTÓNOMA DE CHIHUAHUA CHIHUAHUA, CHIHUAHA, MEXICO THURSDAY, 11 APRIL 2019","authors":"Celia López González","doi":"10.1894/0038-4909-65.1.67","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.67","url":null,"abstract":"","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42756612","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}
Pub Date : 2021-05-17DOI: 10.1894/0038-4909-65.1.91
s, scientific program, banquet, Annual Business Meeting, and meeting of the Board of Governors, and make arrangements concerning rooms, facilities and logistics; direct registration; coordinate local publicity with the Program Director; and perform such tasks as required by the Program Director. The Local Representative, in consultation with the President, shall select the speaker in alternate years when the Immediate PastPresident does not deliver the Address at the Annual
{"title":"SOUTHWESTERN ASSOCIATION OF NATURALISTS CONSTITUTION","authors":"","doi":"10.1894/0038-4909-65.1.91","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.91","url":null,"abstract":"s, scientific program, banquet, Annual Business Meeting, and meeting of the Board of Governors, and make arrangements concerning rooms, facilities and logistics; direct registration; coordinate local publicity with the Program Director; and perform such tasks as required by the Program Director. The Local Representative, in consultation with the President, shall select the speaker in alternate years when the Immediate PastPresident does not deliver the Address at the Annual","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42971132","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.34
Jacqueline R. Ferrato, Richard M. Kostecke, J. Veech, John A. Muller, Charlotte M. Reemts
Abstract The Sprague's pipit (Anthus spragueii) is a passerine of North American prairies, breeding in the northern United States and southern Canada, and overwintering in the grasslands and deserts of the southern United States and northern Mexico. In recent decades, pipit populations have declined in both breeding and wintering ranges because of degradation and loss of native prairie. Previous research on this species has focused primarily on its breeding habitat and provided limited information on its wintering habitat. To help fill in these data gaps, we assessed wintering density along the Texas Gulf Coast Plain, as well as characteristics of the associated habitat. We used a distance-based line-transect sampling technique to estimate pipit densities during the winters of 2013–2014 and 2014–2015 at seven conservation sites and found Sprague's pipits at all sites. The highest number of detections and the highest density estimates were at the Attwater Prairie Chicken National Wildlife Refuge. Habitat associated with pipits included open grasslands with mixed forbs and low vertical cover. Although wildlife biologists consider pipits to be native grassland specialists in their breeding range, our analyses did not identify proportion of native grasses as an important variable. Instead, the physical structure of the vegetation (short and sparse grass cover) was most important to pipit presence. Our results suggest that habitat management to benefit wintering populations of this species should focus on vegetation structure, though native grassland cover might be important at a larger scale.
{"title":"WINTERING HABITAT ASSOCIATIONS OF A DECLINING GRASSLAND BIRD, THE SPRAGUE'S PIPIT (ANTHUS SPRAGUEII)","authors":"Jacqueline R. Ferrato, Richard M. Kostecke, J. Veech, John A. Muller, Charlotte M. Reemts","doi":"10.1894/0038-4909-65.1.34","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.34","url":null,"abstract":"Abstract The Sprague's pipit (Anthus spragueii) is a passerine of North American prairies, breeding in the northern United States and southern Canada, and overwintering in the grasslands and deserts of the southern United States and northern Mexico. In recent decades, pipit populations have declined in both breeding and wintering ranges because of degradation and loss of native prairie. Previous research on this species has focused primarily on its breeding habitat and provided limited information on its wintering habitat. To help fill in these data gaps, we assessed wintering density along the Texas Gulf Coast Plain, as well as characteristics of the associated habitat. We used a distance-based line-transect sampling technique to estimate pipit densities during the winters of 2013–2014 and 2014–2015 at seven conservation sites and found Sprague's pipits at all sites. The highest number of detections and the highest density estimates were at the Attwater Prairie Chicken National Wildlife Refuge. Habitat associated with pipits included open grasslands with mixed forbs and low vertical cover. Although wildlife biologists consider pipits to be native grassland specialists in their breeding range, our analyses did not identify proportion of native grasses as an important variable. Instead, the physical structure of the vegetation (short and sparse grass cover) was most important to pipit presence. Our results suggest that habitat management to benefit wintering populations of this species should focus on vegetation structure, though native grassland cover might be important at a larger scale.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45819622","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.45
S. M. Meyer, Raymond S. Matlack, J. Ray
Abstract Steep-walled catchments are a source of wildlife mortality. Incidental to searching for carcasses under five wind turbines in the panhandle of Texas, we discovered vertebrate carcasses on a frequent basis in concrete oil-catchment basins associated with each turbine's transformer. During 2015 and 2016, we found remains of 62 vertebrates trapped in these basins. We recommend new designs that prevent entrapment and addition of escape ramps to existing basins to reduce the frequency of trapped animals. Mitigation of mortality of the level that we observed could significantly reduce this unnecessary impact on wildlife from what is a far-reaching and growing industry.
{"title":"WILDLIFE MORTALITY IN WIND TURBINE TRANSFORMER BASINS","authors":"S. M. Meyer, Raymond S. Matlack, J. Ray","doi":"10.1894/0038-4909-65.1.45","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.45","url":null,"abstract":"Abstract Steep-walled catchments are a source of wildlife mortality. Incidental to searching for carcasses under five wind turbines in the panhandle of Texas, we discovered vertebrate carcasses on a frequent basis in concrete oil-catchment basins associated with each turbine's transformer. During 2015 and 2016, we found remains of 62 vertebrates trapped in these basins. We recommend new designs that prevent entrapment and addition of escape ramps to existing basins to reduce the frequency of trapped animals. Mitigation of mortality of the level that we observed could significantly reduce this unnecessary impact on wildlife from what is a far-reaching and growing industry.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46750609","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.50
A. Gómez-Benitez, W. C. Sherbrooke, G. Granados‐González, Gabriel Suárez-Varón, A. Pérez-Pérez, Ana Esthela López-Moreno, Oswaldo Hernández‐Gallegos
Abstract Blood-squirting from ocular sinuses is a unique defensive behavior widespread in horned lizards. During an ecological study in the state of Mexico, Mexico, we captured 24 males and 23 females of Phrynosoma orbiculare, of which three males squirted blood during gentle handling. Two individuals were of juvenile size, suggesting, with data from large adults, that P. orbiculare defensive strategy may be employed throughout life.
{"title":"BLOOD-SQUIRT OCCURRENCE IN THE MEXICAN PLATEAU HORNED LIZARD (PHRYNOSOMA ORBICULARE)","authors":"A. Gómez-Benitez, W. C. Sherbrooke, G. Granados‐González, Gabriel Suárez-Varón, A. Pérez-Pérez, Ana Esthela López-Moreno, Oswaldo Hernández‐Gallegos","doi":"10.1894/0038-4909-65.1.50","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.50","url":null,"abstract":"Abstract Blood-squirting from ocular sinuses is a unique defensive behavior widespread in horned lizards. During an ecological study in the state of Mexico, Mexico, we captured 24 males and 23 females of Phrynosoma orbiculare, of which three males squirted blood during gentle handling. Two individuals were of juvenile size, suggesting, with data from large adults, that P. orbiculare defensive strategy may be employed throughout life.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44260090","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.60
Tania M. Orozco‐Téllez, Alberto Rocha-Méndez, Israel Moreno-Contreras
Abstract We report the sighting of a mangrove cuckoo (Coccyzus minor) in June 2019 at Parque Bicentenario, Mexico City, Mexico. This record from the Trans-Mexican Volcanic Belt (TMVB) is 182 km from the closest published record within the TMVB, and 217 km away from its known distribution range in the Atlantic Slope and 475 km from the Pacific Slope. This sighting, and several recent sightings during the breeding season, might indicate dispersal into a new biogeographic province from its predominantly lowland range. Within this biogeographic province, this finding helps to better understand its distribution and habitat use in Mexico.
{"title":"NEW RECORD OF THE MANGROVE CUCKOO (COCCYZUS MINOR) FROM THE TRANSMEXICAN VOLCANIC BELT","authors":"Tania M. Orozco‐Téllez, Alberto Rocha-Méndez, Israel Moreno-Contreras","doi":"10.1894/0038-4909-65.1.60","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.60","url":null,"abstract":"Abstract We report the sighting of a mangrove cuckoo (Coccyzus minor) in June 2019 at Parque Bicentenario, Mexico City, Mexico. This record from the Trans-Mexican Volcanic Belt (TMVB) is 182 km from the closest published record within the TMVB, and 217 km away from its known distribution range in the Atlantic Slope and 475 km from the Pacific Slope. This sighting, and several recent sightings during the breeding season, might indicate dispersal into a new biogeographic province from its predominantly lowland range. Within this biogeographic province, this finding helps to better understand its distribution and habitat use in Mexico.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41968309","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.52
T. A. Ladine
Abstract Wildlife biologists believe the red wolf (Canis rufus) is limited in the wild to the Red Wolf Recovery Experimental Population Area on the Albemarle Peninsula, North Carolina. Several black-and-white photos from trail cameras placed on the Environmental Studies Area of East Texas Baptist University in Marshall, Texas, indicate the presence of a large canid possessing wolf-like characters. Two pictures, in particular, indicate the wolf-like characters with estimated morphometrics at the upper range reported for body length, shoulder height, width of head, and width of nose pad. Hair samples and tracks from this location indicate the presence of Canis rufus in east Texas.
{"title":"THE RED WOLF (CANIS RUFUS) IN EAST TEXAS","authors":"T. A. Ladine","doi":"10.1894/0038-4909-65.1.52","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.52","url":null,"abstract":"Abstract Wildlife biologists believe the red wolf (Canis rufus) is limited in the wild to the Red Wolf Recovery Experimental Population Area on the Albemarle Peninsula, North Carolina. Several black-and-white photos from trail cameras placed on the Environmental Studies Area of East Texas Baptist University in Marshall, Texas, indicate the presence of a large canid possessing wolf-like characters. Two pictures, in particular, indicate the wolf-like characters with estimated morphometrics at the upper range reported for body length, shoulder height, width of head, and width of nose pad. Hair samples and tracks from this location indicate the presence of Canis rufus in east Texas.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43312757","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.56
E. Hinkle, N. Ford
Abstract The Cajun dwarf crayfish (Cambarellus shufeldtii) is among the most broadly ranging dwarf crayfish species in North America. Little is known about the species' reproductive cycle in east Texas populations, and even less is known about the relationship between female body size and reproductive traits. This study seeks to characterize some reproductive traits of female C. shufeldtii as they correlate to body size. We recorded measurements of 23 berried specimens collected from an east Texas freshwater marsh, and established a positive correlation between female carapace length and number of eggs, as well as female total length and number of juveniles. Females were larger and had larger clutches than those reported from Louisiana. We also present some laboratory evidence for females reproducing multiple times in a single reproductive season.
{"title":"REPRODUCTIVE TRAITS OF NORTH AMERICAN CAJUN DWARF CRAYFISH (CAMBARELLUS SHUFELDTII) FROM THE NECHES RIVER NATIONAL WILDLIFE REFUGE","authors":"E. Hinkle, N. Ford","doi":"10.1894/0038-4909-65.1.56","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.56","url":null,"abstract":"Abstract The Cajun dwarf crayfish (Cambarellus shufeldtii) is among the most broadly ranging dwarf crayfish species in North America. Little is known about the species' reproductive cycle in east Texas populations, and even less is known about the relationship between female body size and reproductive traits. This study seeks to characterize some reproductive traits of female C. shufeldtii as they correlate to body size. We recorded measurements of 23 berried specimens collected from an east Texas freshwater marsh, and established a positive correlation between female carapace length and number of eggs, as well as female total length and number of juveniles. Females were larger and had larger clutches than those reported from Louisiana. We also present some laboratory evidence for females reproducing multiple times in a single reproductive season.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44125688","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.63
Catherine L. Wallace, J. Coons, B. Molano‐Flores
Abstract In this study we focus on the pollen morphology of Physaria kingii subsp. kaibabensis and two congeners, Physaria arizonica and P. kingii subsp. latifolia, found on the Kaibab Plateau, Arizona, to differentiate further among these species. We collected plant material from 2 sites/species, with 10 plants/site used to image 10 pollen grains/plant. We described pollen grains (i.e., polar axis [P], equatorial diameter [E], P/E ratio, shape, exine structure, and aperture number) using scanning electron microscopy. All species imaged had pollen grains with reticulate surfaces and were pentacolpate. We found significant differences among species for equatorial diameter and P/E ratio, but not for polar axis. This study provides additional information that can be incorporated in species descriptions.
{"title":"POLLEN GRAIN MORPHOLOGY OF PHYSARIA KINGII SUBSP. KAIBABENSIS AND TWO CONGENERS","authors":"Catherine L. Wallace, J. Coons, B. Molano‐Flores","doi":"10.1894/0038-4909-65.1.63","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.63","url":null,"abstract":"Abstract In this study we focus on the pollen morphology of Physaria kingii subsp. kaibabensis and two congeners, Physaria arizonica and P. kingii subsp. latifolia, found on the Kaibab Plateau, Arizona, to differentiate further among these species. We collected plant material from 2 sites/species, with 10 plants/site used to image 10 pollen grains/plant. We described pollen grains (i.e., polar axis [P], equatorial diameter [E], P/E ratio, shape, exine structure, and aperture number) using scanning electron microscopy. All species imaged had pollen grains with reticulate surfaces and were pentacolpate. We found significant differences among species for equatorial diameter and P/E ratio, but not for polar axis. This study provides additional information that can be incorporated in species descriptions.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42781363","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}
Pub Date : 2021-05-10DOI: 10.1894/0038-4909-65.1.46
Cheyenne H Love, Brian G. Laub
Abstract We conducted a study to determine whether the nonnative axis deer (Axis axis) exhibited behaviors that could be negatively impacting ponds and pools in ephemeral channels. To assess behaviors, we collected game camera-trap images at two sites within the Texas Hill Country with naturally occurring standing water sources frequented by A. axis. We analyzed images of A. axis for behaviors including wallowing, territorial marking, and drinking. We also analyzed water samples for turbidity and Escherichia coli, in order to determine potential impacts of axis deer on water quality. During this study, we observed only drinking behaviors by A. axis. Water quality parameters did not significantly correlate with A. axis visitation rates. The observations suggest limited impact of A. axis on water sources, contributing to a greater understanding of A. axis behaviors and potential impacts within the Texas Hill Country.
{"title":"WATER USE BEHAVIORS OF AXIS DEER (AXIS AXIS) IN THE TEXAS HILL COUNTRY","authors":"Cheyenne H Love, Brian G. Laub","doi":"10.1894/0038-4909-65.1.46","DOIUrl":"https://doi.org/10.1894/0038-4909-65.1.46","url":null,"abstract":"Abstract We conducted a study to determine whether the nonnative axis deer (Axis axis) exhibited behaviors that could be negatively impacting ponds and pools in ephemeral channels. To assess behaviors, we collected game camera-trap images at two sites within the Texas Hill Country with naturally occurring standing water sources frequented by A. axis. We analyzed images of A. axis for behaviors including wallowing, territorial marking, and drinking. We also analyzed water samples for turbidity and Escherichia coli, in order to determine potential impacts of axis deer on water quality. During this study, we observed only drinking behaviors by A. axis. Water quality parameters did not significantly correlate with A. axis visitation rates. The observations suggest limited impact of A. axis on water sources, contributing to a greater understanding of A. axis behaviors and potential impacts within the Texas Hill Country.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41319992","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}
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