Results 61 to 70 of about 2,307 (204)

Report on the soil-zoological expeditions to Ecuador and Colom­bia between 1986-1993. I. list of localities and habitats of "Berlese" samples. [PDF]

open access: yes, 2008
Complete lists of the sampling localities and habitats of the Hungarian soil zoological expeditions to Ecuador and Colombia between 1986 and 1993 are presented.
Zicsi, A.
core  

Apoptosis: molecular mechanisms and pathogenicity [PDF]

open access: yes
Apoptosis triggered by exogenous and endogenous stimuli such as ultraviolet radiation, oxidative stress, and genotoxic chemicals is a crucial phenomenon within biological systems.
Rastogi, Rajesh P.   +2 more
core   +1 more source

Intraspecific variation in pollination ecology due to altitudinal environmental heterogeneity

open access: yesEcology and Evolution, Volume 14, Issue 6, June 2024.
Plant populations in different eco‐regions differed in pollination ecology strategies. These population differences are not explained by differences in pollinator assembly, but by environmental heterogeneity. Abstract Plant‐pollinator interactions are constrained by floral traits and available pollinators, both of which can vary across environmental ...
Gisela T. Rodríguez‐Sánchez   +3 more
wiley   +1 more source

Contribución al conocimiento de los Membracidæ de Colombia

open access: yesCaldasia, 1941
En las grandes alturas de los Andes colombianos, entre los 3000 y 4000 metros sobre el nivel del mar, viven la Centrogonia lutea Funk y la Centrogonia brevicornis nov.
Richter Leopoldo
doaj  

Nuclear phylogenomics of angiosperms and insights into their relationships and evolution

open access: yesJournal of Integrative Plant Biology, Volume 66, Issue 3, Page 546-578, March 2024.
This review synthesizes numerous nuclear phylogenomic analyses of angiosperms (analyses that resolved the relationships of major clades, most orders, and many families and subgroups) and discusses the improved understanding of angiosperm biogeography, diversification dynamics, and character evolution.
Guojin Zhang, Hong Ma
wiley   +1 more source

Aportes a la Flora de Colombia: Estudios en Compuestas II

open access: yesCaldasia, 1975
Espeletia guacharaca Díaz, sp. nov.
Díaz Piedrahíta Santiago
doaj  

Genome Sequences of Actinobacteria from Extreme Environments in Colombia. [PDF]

open access: yes, 2018
We sequenced six actinobacterial genomes isolated from a salt mine and from soil in a high-mountain Páramo ecosystem. The strains belonged to the genera Streptomyces, Nesterenkonia, and Isoptericola and were sequenced due to their antimicrobial and ...
Baena, Sandra   +5 more
core  

Morphoanatomy and leaf biomass in Espeletia standleyana A.C.Sm. and Espeletia santanderensis A.C.Sm. in a northeastern Colombian paramo

open access: yesAlpine Botany
Abstract The adaptive responses of Espeletia standleyana and E. santanderensis populations in a paramo in Northeastern Colombia (3350 m a.s.l.), were studied to characterize their spatial segregation. Their anatomical, morphofunctional
Jimmy Reyes   +4 more
openaire   +1 more source

The ghost of past climate acting on present‐day plant diversity: Lessons from a climate‐based delimitation of the tropical alpine ecosystem

open access: yesJournal of Systematics and Evolution, Volume 62, Issue 2, Page 275-290, March 2024.
Using a climate‐based delimitation to compare the extent of tropical alpine areas between the present and during the last glacial maximum permits us to estimate the degree of habitat stability. This new approach facilitates macro‐comparative studies of habitat dynamics through time.
Martha Kandziora   +7 more
wiley   +1 more source

Two New Genera, Brevisana and Minimana, and Four New Species of Gyponinae (Homoptera: Cicadellidae) [PDF]

open access: yes, 1987
Author Institution: Department of Entomology, University of KentuckyThe new genera Brevisana and Minimana are described and include three species: B. rugosa, n. sp., M. montana, n. sp., and M. unistriata, n. sp.
Freytag, Paul H.
core  

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