Results 21 to 30 of about 55,881 (343)

Biogeographic analysis of the American genus Echeandia (Agavoideae: Asparagaceae)

open access: yesRevista Mexicana de Biodiversidad, 2021
Echeandia (Asparagaceae) is an American genus of herbaceous geophytes. Its distribution is heterogeneous but concentrates along the Mexican Transition Zone (MTZ). We analyzed the species richness distribution and endemism of the group.
Juan Pablo Ortiz-Brunel   +3 more
doaj   +1 more source

Distribution of freshwater fish from the Southern Neotropics reveals three new areas of endemism and show diffuse limits among freshwater ecoregions

open access: yesNeotropical Ichthyology, 2021
Ecoregions and areas of endemism are central concepts in biogeography. Based on collection records and the Endemic Analyses implemented with NDM/VNDM method we analyzed fish areas of endemism in the junction of three freshwater ecoregions related to the ...
José Bessonart   +3 more
doaj   +1 more source

Species diversity, hotspot congruence, and conservation of North American damselflies (Odonata: Zygoptera)

open access: yesFrontiers in Ecology and Evolution, 2023
The rapid extinction of species is of considerable concern for biodiversity conservation. Identifying the drivers of species diversity and hotspots is beneficial for developing conservation strategies.
Zhengxue Zhao   +4 more
doaj   +1 more source

Madagascar's grasses and grasslands:anthropogenic or natural? [PDF]

open access: yes, 2016
Grasses, by their high productivity even under very low pCO2, their ability to survive repeated burning and to tolerate long dry seasons, have transformed the terrestrial biomes in the Neogene and Quaternary.
Bosser J   +21 more
core   +1 more source

Species richness and endemism patterns of Sternorrhyncha (Insecta, Hemiptera) in China [PDF]

open access: yesZooKeys, 2023
One of the main goals in biogeography and ecology is the study of patterns of species diversity and the driving factors in these patterns. However, such studies have not focused on Sternorrhyncha in China, although this region hosts massive species ...
Zhengxue Zhao   +5 more
doaj   +3 more sources

An optimality criterion to determine areas of endemism [PDF]

open access: yes, 2002
A formal method was developed to determine areas of endemism. The study region is divided into cells, and the number of species that can be considered as endemic is counted for a given set of cells (= area).
Chalup, Adriana Elizabeth   +3 more
core   +1 more source

Biogeographic analysis of ferns and lycophytes in Oaxaca: A Mexican beta-diverse area

open access: yesBotan‪ical Sciences, 2021
Background: Spatial patterns related to richness and endemism of Mexican ferns and lycophytes are not well known, particularly in highly biodiverse areas; among these, Oaxaca is considered a highly biodiverse Mexican state.
Raúl Contreras-Medina   +5 more
doaj   +1 more source

Patterns of Endemism in Turkey, the Meeting Point of Three Global Biodiversity Hotspots, Based on Three Diverse Families of Vascular Plants

open access: yesFrontiers in Ecology and Evolution, 2019
Centers of endemism and areas of endemism are important biogeographic concepts with high relevance for conservation and evolutionary biology. Turkey is located at the intersection of three global biodiversity hotspots (Mediterranean, Caucasian, Irano ...
Jalil Noroozi   +6 more
doaj   +1 more source

Spatial patterns of phylogenetic diversity and endemism in the Western Ghats, India: A case study using ancient predatory arthropods

open access: yesEcology and Evolution, 2021
The Western Ghats (WG) mountain chain in peninsular India is a global biodiversity hotspot, one in which patterns of phylogenetic diversity and endemism remain to be documented across taxa. We used a well‐characterized community of ancient soil predatory
D. K. Bharti   +3 more
doaj   +1 more source

Diversity and Endemism of Southern African Gekkonids Linked with the Escarpment Has Implications for Conservation Priorities

open access: yesDiversity, 2023
South Africa is recognised for its high reptile diversity and endemism, specifically among lizards. Phylogenetic diversity, endemism, and richness can have clear implications or raise important questions in a range of fields, and most urgently in ...
Gary K. Nicolau, Shelley Edwards
doaj   +1 more source

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