The Rio Grande River snakes along a valley in southwestern Colorado on June 14, 2018. 0000002492 00000 n Drowning in Rio Grande highlights desperation and dangers of migrant journey By Christopher Sherman and Marcos Alemán Associated Press, June 27, 2019, 5:52 p.m. Email to a Friend And a group of people from Central America has just waded into the water to cross into the United States. More than 1,260 miles of our approximately 2,000-mile border are defined by the Rio Grande and the Colorado River. 0000000016 00000 n Rio Grande - Rio Grande - Study and exploration: Probably the first Europeans to see any part of the Rio Grande were those of an expedition sent out in 1519 to survey the coast of the Gulf of Mexico. 0000044645 00000 n LAREDO, Texas – The Rio Grande is known as the Rio Bravo in Mexico; “bravo” is Spanish for fierce, treacherous, unpredictable. A trio of kayakers float past Corrales on the Rio Grande Sunday. startxref 0000006602 00000 n 0000041923 00000 n 0000036506 00000 n 20 44 0000018860 00000 n Monitoring of this area should focus on key riparian species, specifically beaver and bats that appear to be abundant along the river. The ruggedness of this area may protect the native mammals from the extent of changes often caused by anthropogenic effects. The Del Rio Sector is a mostly rural region on the Rio Grande, containing the towns of Del Rio and Eagle Pass. Regina explains. <<7A577930C1290A4BA6BE23636128D411>]/Prev 119807>> On Wednesday, the river was flowing at about 7,980 cfs and hit 5.69 feet, according to National Weather Service records. 0000003639 00000 n The Rio Grande forms the border between Texas and Mexico. 0000033544 00000 n The most common species captured were the cactus mouse (Peromyscus eremicus; 26%), Merriam’s kangaroo rat (Dipodomys merriami; 20%), Nelson’s pocket mouse (Chaetodipus nelsoni; 17%), and the white-ankled mouse (Peromyscus pectoralis; 17%). Texas Border Patrol agents fear that a six-foot alligator who lives in the Rio Grande, which migrants swim across daily to get into the United States from Mexico, may carry out a deadly attack. endstream endobj 21 0 obj <>>> endobj 22 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 23 0 obj <> endobj 24 0 obj <> endobj 25 0 obj <> endobj 26 0 obj [/Separation/All 27 0 R<>] endobj 27 0 obj [/ICCBased 52 0 R] endobj 28 0 obj [/Separation/New#20Color#20Swatch#202 27 0 R<>] endobj 29 0 obj <> endobj 30 0 obj <> endobj 31 0 obj <> endobj 32 0 obj <> endobj 33 0 obj <>stream 0000047903 00000 n Gopher traps were used at some sites to verify the species of gophers present. The ghost-faced bat (Mormoops megalophylla) and western bonneted bat (Eumops perotis) were both easily detected using the Anabat detector. Species diversity was greatest in the Rodentia (rodent) family (n=17 species) and Chiroptera (bat) family (n=13 species). 0000007097 00000 n A US border patrol boat navigates the Rio Grande near where the bodies of migrant Oscar Alberto Martínez Ramírez and his daughter Valeria were found, in Matamoros, Mexico, on 24 June. 0000001452 00000 n Reduced and occasionally complete cessation of river flows that now plague the Rio Grande through Big Bend National Park are mitigated to a great extent by springs that sustain a year-round flow through the Lower Canyons. The river is currently flowing at its highest rate in recent years, increasing both the fun and the hazards for recreational users. In 1978, Congress designated a 191-mile section of river as a part of the national Wild and Scenic River system. The results of this study support the observations of several other recent bat studies along the Rio Grande. 0000016723 00000 n H�\�͎�@��w+�ӽ��%�7+����`;H1F������$�]��k�f�W�os��,O�w��O��pΪ��?���4��Ӻ=��s��8v��=���]����x���n�rmE���^�m��M��4�qǯ�]9�a�s/C�ı�1��X��#�,��׭����S�YU���U��Ty���z��r1�iH:P�W�W�%�|��^%�JC�\' Y��������.�=��j�&��Wj�'��_S��ߨߠ���)��y. Small mammals were surveyed at each of these sites with 100 small metal live traps (Sherman traps) placed along five trap lines (transects). 0000002055 00000 n The acoustic data recorded during mist netting documented some species much more effectively than the mist netting alone. trailer 0000004163 00000 n 0000003850 00000 n Hooved mammals were uncommon throughout the study area. This section of the river flows through the rugged limestone canyons of the Stockton Plateau, and is commonly referred to as the Lower Canyons. The mammals of the Lower Canyons of the Rio Grande have not been altered greatly by anthropogenic effects. The rugged nature of the region reduces the ability of livestock to graze the area, although goats have probably altered the vegetation in areas. The Rio Grande stretches from the mountains of southern Colorado to the Gulf of Mexico at the U.S.-Mexico border, a distance of approximately 1,885 miles. At the first rapid, the canoe running behind our overturned, with one passenger being nearly carried away by the currents. The only non-native species found was the nutria (Myocastor coypus). The maps that illustrated this voyage, however, show only nameless indentations for the mouths of rivers on an otherwise smooth coastline. There is an alarming trend taking place along the border in the Del Rio … The researchers surveyed seven locations over multiple nights. The river is currently flowing at its highest rate in recent years, increasing both the fun and the hazards for recreational users. These species have been documented on the Lower Rio Grande Valley National Wildlife Refuge. 0000008814 00000 n 30^2� �� ~"4� 0 The Rio Grande is one of the principal rivers in the southwest United States and northern Mexico.. Its name is Spanish for the “Big River,” but the Rio Grande is actually known as Rio Bravo in Mexico. Small Mammal Trapping Small mammal traps were set on 35 nights. 0000049455 00000 n Vegetation along the river (riparian habitat) was dominated by the non-native giant reed, and the native common reed interspersed with small trees, including honey mesquite, willows, and non-native salt cedar. The Rio Grande has been impaired due to bacterial contaminants such as E. coli. All observations of mammals and mammal sign, including visual observations, tracks, branch and tree cuttings by beavers, and gopher mounds were recorded. A US border patrol boat navigates the Rio Grande near where the bodies of migrant Oscar Alberto Martínez Ramírez and his daughter Valeria were found, in Matamoros, Mexico, on 24 June. The purpose of this study was to survey the mammals in selected riparian habitats along the Rio Grande from the eastern border of Big Bend NP in Brewster County, downstream through Terrell County. The Rio Grande stretches from the mountains of southern Colorado to the Gulf of Mexico at the U.S.-Mexico border, a distance of approximately 1,885 miles. Texas Border Patrol agents fear that a six-foot alligator who lives in the Rio Grande, which migrants swim across daily to get into the United States from … 0000002936 00000 n Twelve species of rodents and one western spotted skunk (Spilogale gracilis) were captured. 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