Item talk:Q260863

{

 "USGS Publications Warehouse": {
   "@context": "https://schema.org",
   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Sexing California Clapper Rails using morphological measurements",
   "identifier": [
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse IndexID",
       "value": "70176794",
       "url": "https://pubs.usgs.gov/publication/70176794"
     },
     {
       "@type": "PropertyValue",
       "propertyID": "USGS Publications Warehouse Internal ID",
       "value": 70176794
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "North American Bird Bander",
     "volumeNumber": "34",
     "issueNumber": "2"
   },
   "inLanguage": "en",
   "isPartOf": [
     {
       "@type": "CreativeWorkSeries",
       "name": "North American Bird Bander"
     }
   ],
   "datePublished": "2009",
   "dateModified": "2017-07-19",
   "abstract": "California Clapper Rails (Rallus longirostris obsoletus) have monomorphic plumage, a trait that makes identification of sex difficult without extensive behavioral observation or genetic testing. Using 31 Clapper Rails (22 females, 9 males), caught in south San Francisco Bay, CA, and using easily measurable morphological characteristics, we developed a discriminant function to distinguish sex. We then validated this function on 33 additional rails. Seven morphological measurements were considered, resulting in three which were selected in the discriminate function: culmen length, tarsometatarsus length, and flat wing length. We had no classification errors for the development or testing datasets either with resubstitution or cross-validation procedures. Male California Clapper Rails were 6-22% larger than females for individual morphological traits, and the largest difference was in body mass. \u00a0Variables in our discriminant function closely match variables developed for sexing Clapper Rails of Gulf Coast populations.\u00a0However, a universal discriminant function to sex all Clapper Rail subspecies is not likely because of large and inconsistent differences in morphological traits among subspecies.\u00a0",
   "description": "7 p.",
   "publisher": {
     "@type": "Organization",
     "name": "North American Bird Bander"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Overton, Cory T. coverton@usgs.gov",
       "givenName": "Cory T.",
       "familyName": "Overton",
       "email": "coverton@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-5060-7447",
         "url": "https://orcid.org/0000-0002-5060-7447"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Western Ecological Research Center",
           "url": "https://www.usgs.gov/centers/werc"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Casazza, Michael L. mike_casazza@usgs.gov",
       "givenName": "Michael L.",
       "familyName": "Casazza",
       "email": "mike_casazza@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0002-5636-735X",
         "url": "https://orcid.org/0000-0002-5636-735X"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Western Ecological Research Center",
           "url": "https://www.usgs.gov/centers/werc"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Takekawa, John Y. john_takekawa@usgs.gov",
       "givenName": "John Y.",
       "familyName": "Takekawa",
       "email": "john_takekawa@usgs.gov",
       "identifier": {
         "@type": "PropertyValue",
         "propertyID": "ORCID",
         "value": "0000-0003-0217-5907",
         "url": "https://orcid.org/0000-0003-0217-5907"
       },
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Western Ecological Research Center",
           "url": "https://www.usgs.gov/centers/werc"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Rohmer, Tobias M.",
       "givenName": "Tobias M.",
       "familyName": "Rohmer",
       "affiliation": [
         {
           "@type": "Organization",
           "name": "Invasive Spartina Project; Olofson Environmental Inc."
         }
       ]
     }
   ],
   "funder": [
     {
       "@type": "Organization",
       "name": "Western Ecological Research Center",
       "url": "https://www.usgs.gov/centers/werc"
     }
   ]
 }

}