Global ETD Search
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Showing 1 to 4 of 4 for “"Santa Cruz Island"”.
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Reproductive ecology of the island scrub-jay (Aphelocoma insularis)
… small population size and limited range of the Island Scrub-Jay make it a species of conservation concern, yet its reproductive ecology is poorly known. From 2008 - 2010 I investigated factors influencing nest success, quantified annual fecundity per pair, and documented breeding behavior. Nest …
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Precipitation amount, altitude, and moisture trajectory effects on the stable isotopic composition of precipitation in the Galapagos Islands
… new 28-month record of daily δ18Op and δDp from Santa Cruz, Galápagos. With a prior 13-year record of monthly averaged precipitation isotope data from the island, these new data reveal valuable information on how meteorology, altitude, and source region characteristics influence the stable …
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Microgeographic divergence in a single-island endemic: evolutionary patterns and conservation implications
… bird species in North America, the Island Scrub-Jay (Aphelocoma insularis). The species is restricted to Santa Cruz Island in southern California, USA, where it occurs in a diversity of habitat types within its narrow (250 km2) geographic range. Remarkably, I found that Island …
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The Ashy Petrel, OCEANODROMA HOMOCHROA, at its Breeding Grounds on the Farallon Islands, California
… <p>Introduction: </p> <p>The Farallon Islands are given as the type locality for the Ashy Petrel, Oceanodroma homochroa (Coues, 1864). Little of its biology has been studied, as information in the past has been limited to short period observations by visitors to off-shore islands along …