Galapagos Tortoises and Sea Turtles in Gold Rush-Era California

2014 ◽  
Vol 91 (2) ◽  
pp. 20-39 ◽  
Author(s):  
Cyler Conrad ◽  
Allen Pastron

Spotting a sea turtle or Galapagos tortoise on the early wharfs and streets of San Francisco or Sacramento, California during the Gold Rush (1848-1855) would not have been a rare event. Massive population influx into the San Francisco Bay region during this time resulted in substantial impacts to native species and habitats of all taxa, but the demand for food resulted in many resources, turtles and tortoises included, being imported into the cities. Providing a fresh and delectable food source, these terrapin were brought to San Francisco and Sacramento to feed the hungry Gold Rush populous. Their taste, popularity and demand also resulted in small numbers being imported into gold mining towns in the San Joaquin Valley and foothills of the Sierra Nevada’s. Remarkable as this process was, the consumption and importation of both sea turtles and Galapagos tortoises during the Gold Rush pushed native populations of these species to the brink of extinction during the mid to late-nineteenth century. Declining numbers of terrapin and increased scientific curiosity, with a desire to safeguard these creatures for future generations, resulted in their eventually legal protection and conservation. In many ways the impacts of the decimation of terrapin in the eastern Pacific during the Gold Rush are still felt today, as conservation and breeding efforts continue in an attempt to return native turtle and tortoise populations to pre-Euro-American contact levels. This research describes the historical, and new archaeofaunal, evidence of the terrapin import market in San Francisco, Sacramento and beyond during the dynamic period of the California Gold Rush.

Phytotaxa ◽  
2015 ◽  
Vol 233 (3) ◽  
pp. 236 ◽  
Author(s):  
Roksana Majewska ◽  
J. P. Kociolek ◽  
Evan W. Thomas ◽  
Mario De Stefano ◽  
Mario Santoro ◽  
...  

Marine mammals such as whales and dolphins have been known for a long time to host a very specific epizoic community on their skin. Less known however is the presence of a similar community on the carapaces of sea turtles. The present study is the first describing new taxa inhabiting sea turtle carapaces. Samples, collected from nesting olive ridley sea turtles (Lepidochelys olivacea) on Ostional Beach (Costa Rica), were studied using light and scanning electron microscopy. Two unknown small-celled gomphonemoid taxa were analysed in more detail and are described as two new genera, closely related to other gomphonemoid genera with septate girdle bands, such as Tripterion, Cuneolus and Gomphoseptatum. Chelonicola Majewska, De Stefano & Van de Vijver gen. nov. has a flat valve face, uniseriate striae composed of more than three areolae, simple external raphe endings, internally a siliceous flap over the proximal raphe endings and lives on mucilaginous stalks. Poulinea Majewska, De Stefano & Van de Vijver gen. nov. has at least one concave valve, uniseriate striae composed of only two elongated areolae, external distal raphe endings covered by thickened siliceous flaps and lives attached to the substrate by a mucilaginous pad. Chelonicola costaricensis Majewska, De Stefano & Van de Vijver sp. nov. and Poulinea lepidochelicola Majewska, De Stefano & Van de Vijver sp. nov. can be separated based on stria structure, girdle structure composed of more than 10 copulae, raphe structure and general valve outline. A cladistics analysis of putative members of the Rhoicospheniaceae indicates that the family is polyphyletic. Chelonicola and Poulinea are sister taxa, and form a monophyletic group with Cuneolus and Tripterion, but are not closely related to Rhoicosphenia, or other genera previously assigned to this family. Features used to help diagnose the family such as symmetry and presence of septa and pseudosepta are homoplastic across the raphid diatom tree of life.


1986 ◽  
Vol 91 (1) ◽  
pp. 187
Author(s):  
Roger W. Lotchin ◽  
Robert M. Senkewicz
Keyword(s):  

2018 ◽  
Vol 44 (6) ◽  
pp. 601-613 ◽  
Author(s):  
Richard B. Felson ◽  
Patrick R. Cundiff
Keyword(s):  

2018 ◽  
Author(s):  
Dale Squires ◽  
Victor Restrepo ◽  
Serge Garcia ◽  
Peter Dutton

This paper considers fisheries bycatch reduction within the least-cost biodiversity impact mitigation hierarchy. It introduces conservatory offsets that are implemented earlier in the biodiversity impact mitigation hierarchy than conventional compensatory offsets used as instruments of last resort. The paper illustrates implementation in an on-going sea turtle conservation programme by the International Seafood Sustainability Foundation.


2018 ◽  
Vol 6 (2) ◽  
pp. 167-180 ◽  
Author(s):  
Jacqueline Maria Hagan ◽  
Ricardo Martinez-Schuldt ◽  
Alyssa Peavey ◽  
Deborah M. Weissman

The Immigration and Nationality Act of 1952 (INA) created an immigration system favoring the immigration of spouses, children, and parents of US citizens, thereby establishing family unity as the cornerstone of US immigration policy. Despite this historical emphasis on family unity, backlogs and limited visas for non-immediate relatives of US citizens and legal permanent residents, the militarization of the US-Mexico border, punitive measures for those who enter without inspection, such as the forced separation of children from their parents at the US border, and an aggressive policy of deportation have made it more difficult for members of Mexican binational families to unify. How do members of Mexican binational families manage the hardships that result from US immigration policies that prolong and force family separation? Immigrants and return migrants alike may not be aware of their rights and the legal remedies that exist to enforce them. Structural barriers such as poverty, legal status, fear of deportation, lack of proficiency in English, and lack of familiarity with government bureaucracies no doubt prevent many migrants in the United States and return migrants in Mexico from coming forward to request legal assistance and relief in the courts. Despite these barriers, when it comes to family matters, members of some Mexican binational families can and do assert their rights. In this article, we analyze an administrative database of the Department of Legal Protection of the Mexican consular network that documents migrant legal claims resulting from family separation, along with findings from 21 interviews with consular staff and community organizations in three consular jurisdictions — El Paso, Raleigh, and San Francisco — to investigate the sociolegal processes of claims. Our investigation centers on the mediating role the Mexican state — via its consular network — has developed to assist binational families as they attempt to assert their rights and resolve child support and child custody problems resulting from prolonged and forced family separation. We find that the resolution of binational family claims in part depends on the institutional infrastructure that has developed at local, state, and federal levels, along with the commitment and capacity of the receiving and sending states and the binational structures they establish. These binational structures transcend the limitations of national legal systems to achieve and implement family rights and obligations across borders.


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