Author: brandt / Subject: Galapagos Islands

Author:: Brandt, Sylvia, et al. ; Viteri Mejía, César; Show all 2 Author
Source:: Ecological economics 2015 v.117 pp. 1-11
ISSN:: 0921-8009
Subject:: demand elasticities; ecosystems; ecotourism; income; invasive species; islands; national parks; prices; risk; surveys; tourists; willingness to pay; Ecuador; Galapagos Islands
Abstract:: ... This study analyzes nature-based tourism in Ecuador's Galapagos National Park, which faces great risks of invasive species due to visitor contacts. The analysis uses visitors' preference data to evaluate the potential impacts of various pricing strategies on revenues. Data come from choice experiment surveys conducted in 2009, regarding four characteristics of a tour to the Galapagos: length of st ...
DOI:: 10.1016/j.ecolecon.2015.05.014
: https://dx.doi.org/10.1016/j.ecolecon.2015.05.014

Author:: Brandt, Margarita, et al. ; Dee, Laura E.; Witman, Jon D.; Show all 3 Authors
Source:: Journal of experimental marine biology and ecology 2012 v.416-417 pp. 135-143
ISSN:: 0022-0981
Subject:: Balistidae; Bodianus; Echinoidea; Lachnolaimus maximus; fish; islands; nocturnal activity; predation; refuge habitats; Galapagos Islands
Abstract:: ... Although sea urchins can strongly influence the structure of benthic communities and are abundant in the Galápagos Islands, factors mediating predation on urchins have not been studied experimentally. Here, we examine how habitat structure and behavioral patterns of prey influence predation on the pencil urchin Eucidaris galapagensis, an abundant grazer in rocky subtidal habitats. Results indicate ...
DOI:: 10.1016/j.jembe.2012.02.016
: http://dx.doi.org/10.1016/j.jembe.2012.02.016

Author:: Brandt, Margarita, et al. ; Witman, Jon D.; Chiriboga, Angel I.; Show all 3 Authors
Source:: Ecology 2012 v.93 no.4 pp. 868-878
ISSN:: 0012-9658
Subject:: Lytechinus; Tripneustes; Ulva; algae; benthic organisms; cages; community structure; ecosystems; grazing; habitats; islands; species diversity; Galapagos Islands
Abstract:: ... Theory and experiments indicate that changes in consumer diversity affect benthic community structure and ecosystem functioning. Although the effects of consumer diversity have been tested in the laboratory and the field, little is known about effects of consumer diversity in the subtidal zone, one of the largest marine habitats. We investigated the grazing effects of sea urchins on algal abundanc ...
DOI:: 10.1890/10-1785.1
: http://dx.doi.org/10.1890/10-1785.1

Author:: BRANDT, MARGARITA, et al. ; EDGAR, GRAHAM J.; BANKS, STUART A.; BUSTAMANTE, RODRIGO H.; CHIRIBOGA, ANGEL; EARLE, SYLVIA A.; GARSKE, LAUREN E.; GLYNN, PETER W.; GROVE, JACK S.; HENDERSON, SCOTT; HICKMAN, CLEVE P.; MILLER, KATHY A.; RIVERA, FERNANDO; WELLINGTON, GERALD M.; Show all 14 Authors
Source:: Global change biology 2010 v.16 no.10 pp. 2876-2890
ISSN:: 1354-1013
Subject:: Bifurcaria; Desmarestia; Dictyota; Echinoidea; El Nino; Galaxaura; Gracilaria; Spatoglossum; artisanal fishing; biodiversity; birds; climate change; conservation areas; corals; data collection; environmental impact; extinction; fish; grazing intensity; habitats; indigenous species; lobsters; macroalgae; mammals; population growth; predators; reefs; reptiles; risk; threatened species; Galapagos Islands
Abstract:: ... Comparisons between historical and recent ecological datasets indicate that shallow reef habitats across the central Galapagos Archipelago underwent major transformation at the time of the severe 1982/1983 El Niño warming event. Heavily grazed reefs with crustose coralline algae ('urchin barrens') replaced former macroalgal and coral habitats, resulting in large local and regional declines in biod ...
DOI:: 10.1111/j.1365-2486.2009.02117.x
: http://dx.doi.org/10.1111/j.1365-2486.2009.02117.x

Author:: Brandt, Margarita, et al. ; Witman, Jon D.; Smith, Franz; Show all 3 Authors
Source:: Ecological monographs 2010 v.80 no.1 pp. 153-177
ISSN:: 0012-9615
Subject:: predator-prey relationships; food webs; Cirripedia; marine fish; spatial data; population density; Echinoidea; population size; Galapagos Islands
Abstract:: ... Our understanding of how communities are regulated diminishes with increasing spatial scale. Because oceanographic processes supply food, transport propagules, and set abiotic conditions across broad areas, they may explain metacommunity and food web functioning on large scales. Here we test for bottom‐up manifestations of an oceanographic process, upwelling, through production of barnacle (Megaba ...
DOI:: 10.1890/08-1922.1
: http://dx.doi.org/10.1890/08-1922.1

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