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Decline in amphibian populations. The Golden toad of Monteverde, Costa Rica, was among the first casualties of amphibian declines. Formerly abundant, it was last seen in 1989. Since the 1980s, decreases in amphibian populations, including population decline and localized mass extinctions, have been observed in locations all over the world.
A 2013 study estimated that 670–933 amphibian species (11–15%) are both highly vulnerable to climate change while already being on the IUCN Red List of threatened species. A further 698–1,807 (11–29%) amphibian species are not currently threatened, but could become threatened in the future due to their high vulnerability to climate ...
Habitat destruction. Map of the world's biodiversity hot spots, all of which are heavily threatened by habitat loss and degradation. Habitat destruction (also termed habitat loss and habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved to elsewhere or ...
Biodiversity loss happens when plant or animal species disappear completely from Earth (extinction) or when there is a decrease or disappearance of species in a specific area. Biodiversity loss means that there is a reduction in biological diversity in a given area. The decrease can be temporary or permanent.
The terrestrial flora of Late Cretaceous Texas left behind plant fossils in northern Texas. [6] During the early Cenozoic, Texas was the site of significant volcanic eruptions. [4] Ostracods remained common in the Tertiary seas of Texas. Segments left by ophiuroids are also common in rocks deposited in these marine environments.
0.68% [1] The Tamaulipan mezquital (Spanish: Mezquital Tamaulipeco), also known as the Brush Country, is a deserts and xeric shrublands ecoregion in the Southern United States and northeastern Mexico. It covers an area of 141,500 km 2 (54,600 sq mi), [2] encompassing a portion of the Gulf Coastal Plain in southern Texas, northern Tamaulipas ...
L. tridentata in Anza-Borrego Desert State Park. Larrea tridentata is a prominent species in the Mojave, Sonoran, and Chihuahuan Deserts of western North America, and its range includes those and other regions in portions of southeastern California, Arizona, southern Nevada, southwestern Utah, New Mexico, and Texas in the United States, and Chihuahua, Sonora, Coahuila, Nuevo León, Zacatecas ...
Selaginella lepidophylla is a small, fern-like plant with delicate, green stems and leaves. The plant forms a low, spreading mat, and it reproduces by spores. Selaginella lepidophylla grows in dry, sandy soils in full sun. The striking feature of Selaginella lepidophylla is its adaptation to conditions of prolonged drought in its natural ...