https://conservation.arizona.edu/research-categories/reproduction en https://conservation.arizona.edu/publication/pasch-b-s-and-j-l-koprowski-2005-correlates-vulnerability-chiricahua-fox-squirrels-usda <h3 class="field-label"> Authors </h3> <div class="field-uaqs-pub-authors"> Bret S. Pasch </div> <div class="field-uaqs-pub-authors"> John L. Koprowski </div> <div class="field-uaqs-body"> <p>Chiricahua fox squirrels (<em>Sciurus nayaritensis chiricahuae</em>) are endemic to the Chiricahua Mountains of southeastern Arizona. A paucity of natural history information and uncertain conservation status served as impetus for us to initiate a descriptive ecological study of the species. We examined reproductive and population ecology of Chiricahua fox squirrels intermittently from 1994 to 2003. Chiricahua fox squirrels appear to possess 10 of 13 attributes associated with vulnerability to extinction, including low population densities and reduced reproductive capacity. We underscore potential negative impacts of fire suppression on the species and provide direction for future research and management.</p> </div> <h3 class="field-label"> Additional Information </h3> <div class="field-uaqs-pub-addinfo"> <a href="https://www.researchgate.net/publication/278329450_Correlates_of_vulnerability_in_Chiricahua_Fox_Squirrels" target="_blank">Correlates of Vulnerability in Chiricahua Fox Squirrels</a> </div> <span class="field-label"> Date of publication: </span> <div class="field-uaqs-year inline"> <span property="dc:date" datatype="xsd:dateTime" content="2005-01-01T00:00:00-07:00" class="date-display-single">2005</span> </div> <h3 class="field-label"> Topics </h3> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/chiricahua-fox-squirrels" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Chiricahua fox squirrels</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/conservation-status" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">conservation status</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/reproduction" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">reproduction</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/population-ecology" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">population ecology</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/population-density" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">population density</a> </div> Wed, 24 Jul 2019 22:58:48 +0000 thackerk1 222 at https://conservation.arizona.edu https://conservation.arizona.edu/publication/koprowski-j-l-1992-removal-copulatory-plugs-female-tree-squirrels-journal-mammalogy-733 <h3 class="field-label"> Authors </h3> <div class="field-uaqs-pub-authors"> John L. Koprowski </div> <div class="field-uaqs-body"> <p>Copulatory plugs form in the vagina of females from the semen of male fox squirrels (<em>Sciurus niger</em>) and eastern gray squirrels (<em>S. carolinensis</em>). Plugs are opaque white with waxy to rubbery consistency resembling those of other rodents. Although copulatory plugs frequently are hypothesized to prevent the successful copulation of subsequent males, female tree squirrels often remove the plug within 30 s of copulating and either discard or consume it. The removal by the female of a copulatory plug suggests that conflict may exist between the reproductive strategies of the sexes.</p> <p> </p> </div> <h3 class="field-label"> Additional Information </h3> <div class="field-uaqs-pub-addinfo"> <a href="https://www.jstor.org/stable/1382026?seq=1#page_scan_tab_contents" target="_blank">Removal of Copulatory Plugs by Female Tree Squirrels </a> </div> <span class="field-label"> Date of publication: </span> <div class="field-uaqs-year inline"> <span property="dc:date" datatype="xsd:dateTime" content="1992-01-01T00:00:00-07:00" class="date-display-single">1992</span> </div> <h3 class="field-label"> Topics </h3> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/reproduction" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">reproduction</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/fox-squirrels" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">fox squirrels</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/eastern-gray-squirrel" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">eastern gray squirrel</a> </div> <div class="field-uaqs-pub-research-areas"> <a href="/research-categories/copulatory-plugs" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">copulatory plugs</a> </div> Tue, 23 Jul 2019 00:00:51 +0000 thackerk1 187 at https://conservation.arizona.edu