Halting the Extinction Crisis - Biological Diversity Invertebrates, from butterflies to mollusks to earthworms to corals, are vastly diverse — and though no one knows just how many invertebrate species exist, they're estimated to account for about 97 percent of the total species of animals on Earth Of the 1 3 million known invertebrate species, the IUCN has evaluated about 9,526 species, with
Algae - Wikipedia 5,000–5,500 species of red algae worldwide [citation needed] "some 1,300 in Australian Seas" [107] 400 seaweed species for the western coastline of South Africa, [108] and 212 species from the coast of KwaZulu-Natal [109] Some of these are duplicates, as the range extends across both coasts, and the total recorded is probably about 500 species
Jainism, Dharma, and Environmental Ethics - Academic Commons animals, trees, and self, combined with non-possessiveness, can result in ecological awareness:8 [T]he solutions that Gandhi proposed to counter the ills of colonial-ism can also be put into effect to redress this new and ultimately deleterious situation The observance of nonviolence, coupled with
16. 1 Glacial Periods in Earth’s History – Physical Geology These variations are attributed to subtle changes in Earth’s orbital parameters (Milankovitch cycles), which are explained in more detail in Chapter 21 Over the past million years, the glaciation cycles have been approximately 100,000 years; this variability is visible in Figure 16 5
Inferring the mammal tree: Species-level sets of phylogenies . . . As an overview , we (1) sampled and vetted available DNA sequences for extant and recently extinct species, assembling them into a 31-gene supermatrix (steps 1–5); (2) developed an updated taxonomy accounting for 367 new species and 76 genus transfers (5,911 total species—Table 1, S2 Fig, and S1 Data); (3) built a global ML tree for 4,098
Areas of plant diversity—What do we know? - Brummitt - 2021 . . . Estimated numbers of vascular plant species per WWF ecoregion (version 1; Olson et al , 2001), re-scaled using the species–area relationship and with missing regions interpolated; regions are colored from green (low species richness) to red (high species richness) and numbers of species are given per 10,000 km 2 using species estimates and z