Are northern bobwhites an umbrella species for open‐land birds in Ohio?

2021 ◽  
Author(s):  
Connor J. Rosenblatt ◽  
Stephen N. Matthews ◽  
Robert J. Gates ◽  
William E. Peterman ◽  
Matthew B. Shumar
Keyword(s):  
Umbrella Species ◽  
Northern Bobwhites ◽  
Open Land

scholarly journals The hidden risk of using umbrella species as conservation surrogates: A spatio-temporal approach

2021 ◽  
Vol 253 ◽  
pp. 108913
Author(s):  
Fang Wang ◽  
Julie Winkler ◽  
Andrés Viña ◽  
William Joseph McShea ◽  
Sheng Li ◽  
...  
Keyword(s):  
Umbrella Species ◽  
Spatio Temporal

Effect of conspecific attraction on the presence of Northern Bobwhites

2020 ◽  
Vol 91 (2) ◽  
pp. 189-198
Author(s):  
Loren Merrill ◽  
Stephen A. Tyndel ◽  
Michael P. Ward ◽  
Thomas J. Benson ◽  
Jinelle H. Sperry
Keyword(s):  
Conspecific Attraction ◽  
Northern Bobwhites

Dietary Selection against Cottonseed Meal by Captive Northern Bobwhites

2018 ◽  
Vol 11 (3) ◽  
pp. 191-195 ◽  
Author(s):  
Amy L. Farthing ◽  
Thomas W. Schwertner ◽  
Heather A. Mathewson ◽  
Kimberly A. Guay
Keyword(s):  
Cottonseed Meal ◽  
Cultural Value ◽  
Feed Consumption ◽  
Published Data ◽  
Northern Bobwhites ◽  
Dietary Preference ◽  
Game Bird ◽  
Selection For ◽  
Whole Cottonseed ◽  
Preference Study

Gossypol, a secondary plant compound found in cotton (Gossypium spp.), is known to be toxic to a variety of animals, particularly monogastric mammals and birds. Because ruminants are resistant to gossypol, whole cottonseed and cottonseed meal have been used as a feed supplement for many decades. Concerns over gossypol toxicity arise because of its presence in cottonseed products, particularly livestock and wildlife feed. The concentration of cottonseed in the environment near livestock and wildlife feeding stations presents the possibility that it may be ingested in significant amounts by non-target wild animals, resulting in inadvertent gossypol dosing. A species of significant economic and cultural value is the Northern Bobwhite (Colinus virginianus). However, there are no published data regarding if Northern Bobwhites would consume cottonseed meal given the opportunity. We assessed selection for or against cottonseed meal by performing a dietary preference study. Birds (n =120) were given the choice between commercial game bird feed, scratch grains, and cottonseed meal containing 0.74% total gossypol. We measured feed consumption for five days. The birds’ diet consisted of 51.74% game bird feed, 37.72% scratch grains, and 10.54% cottonseed meal, and percentages varied significantly among all feed types (P≤0.001, n =360). We concluded that Northern Bobwhites selected against the cottonseed meal in favour of the game bird feed first and the scratch grains second. Our results suggest that given the choice, Northern Bobwhites will select against cottonseed meal if other feed choices are available.

scholarly journals Eurasian and North American phylogeny of Turolian hipparionine horses (Perissodactyla, Mammalia) in China

1992 ◽  
Vol 6 ◽  
pp. 305-305
Author(s):  
Mahito Watabe
Keyword(s):  
North America ◽  
North American ◽  
Northern China ◽  
Sensu Stricto ◽  
The Other ◽  
Dental Morphology ◽  
Facial Morphology ◽  
Open Land ◽  
Specialized Form ◽  
Eastern Half

The late Miocene Chinese hipparions are morphologically diversified showing similarity to both western Old World's and North American forms. Two Chinese taxa that are phylogenetically related to western Old World's forms are Hipparion fossatum (= H. forstende) from Baode (Shanxi) and H. hippidiodus from Qingyang (Gansu) and Baode. The former is related to H. mediterraneum and the latter to H. urmiense - platygenys from the Turolian localities in the western Old World. H. fossatum and H. hippidiodus are associated with the “dorcadoides” (open-land) and “mixed” faunas in northern China. Hipparion fossatum that is characterized by POF located close to the orbit co-occurs with large and morphologically specialized form, H. dermatorhinum in Baode (Loc.30). H. hippidiodus with reduced POF is discovered with smaller H. coelophyes in Loc. 43, 44 (Baode) and Loc. 115 (Gansu).The hipparions associated with the “gaudryi” (forest) fauna are characterized by well defined and small POF located far from the orbit. Those forms are: H. platyodus from Loc. 70; H. ptychodus from Loc. 73; H. tylodus from Hsi-Liang in Yushe - Wuxiang basins; and H. sefvei from Loc. 12 at Xin-an in Henan province. H. coelophyes from Baode (Loc.43 & 44) and Qingyang (Loc. 115) also show similar facial morphology to the these forms, although it has small size and shallow POF. Those forms are similar in facial and dental morphology to Hipparion sensu stricto and some species of Cormohipparion in North America.The assemblages of Chinese hipparions are composed of two groups whose members are phylogenetically similar to the forms from both western part of Eurasia and North America. The “gaudryi” fauna is considered younger than the other two on the basis of faunal analyses. The similarity in hipparionine taxonomy between northern China and North America in the latest Miocene is an evidences for possible faunal interchange(s) occurred during that period, as suggested by taxonomic analyses on carnivores and proboscideans in eastern half of Eurasia and North America.

Reproduction of Northern Bobwhites in Semiarid Environments

1988 ◽  
Vol 52 (1) ◽  
pp. 144 ◽  
Author(s):  
Fred S. Guthery ◽  
Nancy E. Koerth ◽  
David S. Smith
Keyword(s):  
Northern Bobwhites ◽  
Semiarid Environments

EMPIRICAL VALIDATION OF A METHOD FOR UMBRELLA SPECIES SELECTION

2001 ◽  
Vol 11 (5) ◽  
pp. 1489-1501 ◽  
Author(s):  
Erica Fleishman ◽  
Robert B. Blair ◽  
Dennis D. Murphy
Keyword(s):  
Species Selection ◽  
Empirical Validation ◽  
Umbrella Species

Making Of Classification Land Cover Through Result Of Visual Data Satellite Image Analysis Landsat 8 OLI : Case Study in Tapaktuan District, South Aceh District

2021 ◽  
Vol 6 (1) ◽  
pp. 59-65
Author(s):  
Safridatul Audah ◽  
Muharratul Mina Rizky ◽  
Lindawati
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Image Classification ◽  
Satellite Image ◽  
Landsat 8 ◽  
Landsat 8 Oli ◽  
Sensing Technology ◽  
Open Land ◽  
Cover Class ◽  
Satellite Image Analysis

Tapaktuan is the capital and administrative center of South Aceh Regency, which is a sub-district level city area known as Naga City. Tapaktuan is designated as a sub-district to be used for the expansion of the capital's land. Consideration of land suitability is needed so that the development of settlements in Tapaktuan District is directed. The purpose of this study is to determine the level of land use change from 2014 to 2018 by using remote sensing technology in the form of Landsat-8 OLI satellite data through image classification methods by determining the training area of the image which then automatically categorizes all pixels in the image into land cover class. The results obtained are the results of the two image classification tests stating the accuracy of the interpretation of more than 80% and the results of the classification of land cover divided into seven forms of land use, namely plantations, forests, settlements, open land, and clouds. From these classes, the area of land cover change in Tapaktuan is increasing in size from year to year.

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