scholarly journals Mitigation Options for Future Water Scarcity: A Case Study in Santa Cruz Island (Galapagos Archipelago)

Water ◽  
2017 ◽  
Vol 9 (8) ◽  
pp. 597 ◽  
Author(s):  
Maria Reyes ◽  
Nemanja Trifunović ◽  
Saroj Sharma ◽  
Kourosh Behzadian ◽  
Zoran Kapelan ◽  
...  
Keyword(s):  
Water Scarcity ◽  
Santa Cruz Island ◽  
Santa Cruz ◽  
Mitigation Options ◽  
Galapagos Archipelago

scholarly journals The Red-fin Goby, Evorthodus minutus Meek & Hildebrand, 1928: a new record from Santa Cruz Island, Galapagos Archipelago

Check List ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 1-5
Author(s):  
Omar Valencia-Méndez ◽  
Dave Catania ◽  
Andrés López-Pérez
Keyword(s):  
Brackish Water ◽  
New Record ◽  
Central American ◽  
Range Extension ◽  
Eastern Pacific ◽  
Santa Cruz Island ◽  
Santa Cruz ◽  
Galapagos Archipelago ◽  
Brackish Water Species ◽  
Water Species

The Red-fin Goby, Evorthodus minutus Meek & Hildebrand, 1928, is a coastal brackish species which is commonly distributed from Sinaloa, Mexico to Guayaquil, Ecuador and particularly abundant in mangroves of Central American eastern Pacific. We report a new record of E. minutus collected from the Santa Cruz Island, part of the Galapagos Archipelago. This new record represents a range extension and is allows for a relevant discussion about colonization pathways in the equatorial eastern Pacific of a brackish-water species.

Immunodiffusion comparisons of the serum albumins of marine and land iguanas from different islands in the Galapagos Archipelago

1977 ◽  
Vol 55 (9) ◽  
pp. 1389-1392 ◽  
Author(s):  
Paul J. Higgins
Keyword(s):  
Rabbit Antiserum ◽  
Double Diffusion ◽  
Exchange Chromatography ◽  
Santa Cruz Island ◽  
Santa Cruz ◽  
Serum Albumins ◽  
Galapagos Archipelago ◽  
Amblyrhynchus Cristatus ◽  
Marine Iguana ◽  
Diffusion Assay

Serum albumin of the Santa Cruz Island Galapagos marine iguana, Amblyrhynchus cristatus, was isolated by ion-exchange chromatography of an acid-precipitable alcohol-soluble fraction of whole serum. Antigenic differences could not be resolved among the albumins of several morphologically diverse marine iguana populations in agar double-diffusion assay using rabbit antiserum to the albumin of A. cristatus of Santa Cruz Island. The antigenic composition of the serum albumins of Iguana and Conolophus were similar, relative to Amblyrhynchus, although Conolophus albumin possessed determinants cross-reactive with marine iguana albumin which were not found in Iguana.

Saving Species: The Co-Evolution of Tortoise Taxonomy and Conservation in the Galápagos Islands

2020 ◽  
Vol 25 (2) ◽  
pp. 263-286
Author(s):  
Elizabeth Hennessy
Keyword(s):  
Endangered Species ◽  
Science And Technology Studies ◽  
Science And Technology ◽  
First Person ◽  
Santa Cruz Island ◽  
Santa Cruz ◽  
Genetic Studies ◽  
Food Stores ◽  
Changing Practices

Abstract This article tells the stories behind the names of two species of Galápagos giant tortoise, Chelonoidis porteri and Chelonoidis donfaustoi, both of which inhabit Santa Cruz Island and which, until 2015, were considered one species, C. porteri. Taking a multispecies approach, it demonstrates how changing species designations reflect coevolving histories of science and conservation. Walter Rothschild assigned the name Testudo porteri in 1903 at a time when naturalists increasingly were concerned about the scarcity of animals they came to see as both endemic and endangered. Rothschild’s epithet honored US naval captain David Porter, the first person to write about differences among the Galápagos tortoises in the 1810s, which he noticed because his crews gathered tons of the animals as food stores for Pacific voyages. For Rothschild, saving species meant preserving them in his museum for the benefit of science before they were eaten. A century later, some of the C. porteri animals were renamed C. donfaustoi based on genetic studies of evolution and very different approaches to saving endangered species. This case study shows how nature, science, and conservation have coproduced species differently at different historical moments. By examining the changing practices through which species are enacted, this article outlines a framework by which environmental historians might productively engage with histories of science and science and technology studies to query just what species are, how they change, and with what consequences.

scholarly journals Galápagos Rail Laterallus spilonotus population change associated with habitat invasion by the Red-barked Quinine Tree Cinchona pubescens

2010 ◽  
Vol 21 (2) ◽  
pp. 221-227 ◽  
Author(s):  
W. GREGORY SHRIVER ◽  
JAMES P. GIBBS ◽  
HARA W. WOLTZ ◽  
NICOLE P. SCHWARZ ◽  
MARGARET A. PEPPER
Keyword(s):  
Population Change ◽  
Oceanic Islands ◽  
Native Vegetation ◽  
Santa Cruz Island ◽  
Santa Cruz ◽  
Vegetation Communities ◽  
Galapagos Archipelago ◽  
Management Actions ◽  
Cinchona Pubescens ◽  
Habitat Invasion

SummarySpecies on oceanic islands are more likely to be endemic as well as more extinction-prone than those on continents. The Galápagos Rail Laterallus spilonotus, endemic to the Galápagos Archipelago, is presently known to occur on just four of its seven previously occupied islands and is facing multiple threats to its persistence. In this study, we compared the rail’s occurrence and abundance at 193 survey points between 2000 and 2007 on Santa Cruz Island and examined the influence of an invasion of the habitat of the species by the exotic Red-barked Quinine Tree Cinchona pubescens. We detected a 13% reduction in rail occurrence and a 31% reduction in abundance between 2000 and 2007. Rail abundance declined more in low elevation areas (< 719 m) and outside of Cinchona pubescens removal areas but not in areas where Cinchona pubescens was removed. Insofar as Galápagos Rails responded positively to management actions that promote and maintain native vegetation, we conclude that restoration projects that restore native vegetation communities benefit this apparently declining endemic bird for which more focused conservation attention is warranted.

The impact of Airbnb on a non-touristic city. A Case study of short-term rentals in Santa Cruz de Tenerife (Spain)

Erdkunde ◽  
2020 ◽  
Vol 74 (3) ◽  
pp. 191-204
Author(s):  
Marcus Hübscher ◽  
Juana Schulze ◽  
Felix zur Lage ◽  
Johannes Ringel
Keyword(s):  
Santa Cruz ◽  
Short Term ◽  
Rental Market ◽  
Rural Space ◽  
Use Of Data ◽  
Web Scraping ◽  
Per Capita ◽  
Per Se ◽  
The Impact

Short-term rentals such as Airbnb have become a persistent element of today’s urbanism around the globe. The impacts are manifold and differ depending on the context. In cities with a traditionally smaller accommodation market, the impacts might be particularly strong, as Airbnb contributes to ongoing touristification processes. Despite that, small and medium-sized cities have not been in the centre of research so far. This paper focuses on Santa Cruz de Tenerife as a medium-sized Spanish city. Although embedded in the touristic region of the Canary Islands, Santa Cruz is not a tourist city per se but still relies on touristification strategies. This paper aims to expand the knowledge of Airbnb’s spatial patterns in this type of city. The use of data collected from web scraping and geographic information systems (GIS) demonstrates that Airbnb has opened up new tourism markets outside of the centrally established tourist accommodations. It also shows that the price gap between Airbnb and the housing rental market is broadest in neighbourhoods that had not experienced tourism before Airbnb entered the market. In the centre the highest prices and the smallest units are identified, but two peripheral quarters stand out. Anaga Mountains, a natural and rural space, has the highest numbers of Airbnb listings per capita. Suroeste, a suburban quarter, shows the highest growth rates on the rental market, which implies a linkage between Airbnb and suburbanization processes.

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