Browsing by Subject "stable isotopes"
Now showing items 1-20 of 21
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(2014-11-20)Overexploitation of wildlife is a leading threat to biodiversity in tropical Africa. Effective management requires integrating information on the extent of exploitation, distribution, and status of exploited species. I ...
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(2013-11-06)The black-capped vireo (Vireo atricapilla) is an endangered Neotropical migratory songbird that has received considerable attention in its breeding range, but relatively little attention in its winter range in Mexico. To ...
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(2013-07-30)Ecosystem changes from grassland to shrubland in the Rio Grande Plains are thought to have negative effects on the hydrology of the region. The increase in woody plants, known as woody encroachment, may alter the amount ...
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(2017-07-20)The largest tropical lake in Mexico, Lake Chapala, is a major fishery and a recipient of many contaminants (industrial and agricultural) via the Lerma River. The objectives were to evaluate concentrations of mercury (Hg), ...
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(2014-05-06)Quantitative evaluations of early-life connectivity in reef fish populations are critical to the effective identification and management of productive nearshore nurseries. The present study evaluates the use of natural ...
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(2017-11-14)This study examined the feeding ecology of two reef fishes using gut content and stable isotope analyses to assess the role of artificial reefs as foraging habitat in the Northwest Gulf of Mexico (GoM). Reefs were divided ...
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(2012-10-19)In the Oueme River, a lowland river in Benin, Africa, artificial ponds constructed in the floodplain (whedos) are colonized during the high-water period by a presumably random sample of fishes from the river channel. As ...
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(2013-11-15)The Mekong River is one of the world’s most important rivers in terms of its size, economic importance, cultural significance, productivity, and biodiversity. The Mekong River’s fisheries and biodiversity are threatened ...
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(2021-07-20)Since the 1950s, low-oxygen (hypoxic) conditions have developed in the northern Gulf of Mexico (GoM) due to increased nutrient flux from the Mississippi River. Despite the threat hypoxia poses to profitable fisheries and ...
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(2009-06-09)The early Permian was an interval when cool, glaciated conditions, similar to those of the present-day, shifted to warm, non-glaciated conditions. As a result, climatological information about this time period is pertinent ...
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(2020-04-14)Deep rooting is an advantageous plant strategy because it expands a tree’s available water sources to reliable deep pools and is predicted to be more common in ecosystems with seasonal precipitation regimes, allowing trees ...
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(American Geophysical Union, 2004-12)A planktonic and benthic foraminiferal stable isotope stratigraphy of the Oligocene equatorial Pacific (Ocean Drilling Program, Site 1218) was generated at 6 kyr resolution between magnetochrons C9n and C11n.2n (~26.4–30 ...
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(2020-07-16)Bull sharks (Carcharhinus leucas) occur in tropical and subtropical coastal zones across the globe, including low-salinity estuaries and rivers that, unlike most elasmobranchs, they are capable of inhabiting for extended ...
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(2020-07-16)Bull sharks (Carcharhinus leucas) occur in tropical and subtropical coastal zones across the globe, including low-salinity estuaries and rivers that, unlike most elasmobranchs, they are capable of inhabiting for extended ...
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(2020-04-16)Paleoclimate reconstructions allow us to build a better picture of how climate has changed over time. However, relatively little research has been done in the higher latitudes of the southern hemisphere, leaving a gap in ...
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(2018-03-01)Recent global trends of woody encroachment into grass-dominated ecosystems have substantially altered soil biogeochemical cycles. However, previous studies were mostly conducted at the ecosystem level and results were not ...
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(2020-04-24)This study presents the diagenetic evolution of the Kardiva Platform, Maldives, located in the tropical region of the Indian Ocean off the southwest coast of India. This drowned carbonate platform was susceptible to high ...
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(Texas A&M University, 2006-08-16)We test the fidelity of shallow-water gastropod skeletons as multi-proxy archives of seasonal paleo-environmental change by performing isotopic and trace-metal analyses on specimens of Conus ermineus from the Gulf of Mexico. ...
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(Texas Agricultural Experiment Station, 1948)
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(2018-04-27)Tropical tree ring analysis has been a rarity in the field of dendrochronology until recent years. Trees growing along the equator experience minimal limiting growth periods due to a lack of temperature seasonality, and ...