Results 11 to 20 of about 688 (154)

Conservation implications of genetic structure in the narrowest endemic quillwort from the Eastern Amazon. [PDF]

Ecol Evol, 2021
The quillwort Isoëtes cangae is a critically endangered species occurring in a single lake in Serra dos Carajás, Eastern Amazon. To provide information for effective conservation programs, we evaluated its genetic diversity and population structure using neutral SNPs.
Dalapicolla J, Alves R, Jaffé R, Vasconcelos S, Pires ES, Nunes GL, Pereira JBS, Guimarães JTF, Dias MC, Fernandes TN, Scherer D, Dos Santos FMG, Castilho A, Santos MP, Calderón EN, Martins RL, da Fonseca RN, Esteves FA, Caldeira CF, Oliveira G.   +19 more
europepmc   +2 more sources

Wild canids and the ecological traps facing the climate change and deforestation in the Amazon Forest. [PDF]

Ecol Evol, 2023
Considering the evolutionary history of the species and the rapid changes in land use in the Amazon Forest, we suggest that anthropogenic environments may provide false clues for species adaptation, which could lead to an ecological trap in the future.
de Oliveira GL, Viana-Junior AB, Trindade PHS, Dos Santos IR, de Almeida-Maués PCR, Carvalho FG, Silva DP, Wiig Ø, Sena L, Mendes-Oliveira AC.   +9 more
europepmc   +2 more sources

Bioprospecting for Isoetes cangae Endophytes with Potential to Promote Plant Growth. [PDF]

Int J Microbiol, 2023
Isoetes cangae is a native plant found only in a permanent pond in Serra dos Carajás in the Amazon region. Plant‐associated microbial communities are recognized to be responsible for biological processes essential for the health, growth, and even adaptation of plants to environmental stresses.
Santos DS, Santos DS, Pontes PVM, Leite AMO, Ferreira AL, de Souza M, Araujo TDSS, Dos Santos HF, de Oliveira GC, Bitencourt JA, Cavalcanti AB, Martins RL, Esteves FA.   +12 more
europepmc   +2 more sources

Unraveling the plant diversity of the Amazonian canga through DNA barcoding. [PDF]

Ecol Evol, 2021
Here we bring genetic information for the unique flora of the canga of the Serra dos Carajás in Eastern Amazon. DNA barcodes were obtained for 538 species, 323 genera, and 115 families of vascular plants, with 344 species being characterized for the first time.
Vasconcelos S, Nunes GL, Dias MC, Lorena J, Oliveira RRM, Lima TGL, Pires ES, Valadares RBS, Alves R, Watanabe MTC, Zappi DC, Hiura AL, Pastore M, Vasconcelos LV, Mota NFO, Viana PL, Gil ASB, Simões AO, Imperatriz-Fonseca VL, Harley RM, Giulietti AM, Oliveira G.   +21 more
europepmc   +2 more sources

Assessing Connectivity Thresholds Under Habitat Loss Scenarios for Threatened Amphibians and Squamate Reptiles in the Eastern Brazilian Amazon. [PDF]

Ecol Evol
We assessed which habitat extinction threshold in a landscape is a good predictor of functional connectivity for 14 species of terrestrial herpetofauna in the eastern Brazilian Amazon. We concluded that forest species should maintain a threshold of approximately 30% of habitat to avoid a significant abrupt decline in overall connectivity.
Teixeira C, Nunes GL, Trevelin LC, Silva DP, Prudente ALDC.   +4 more
europepmc   +2 more sources

Floral Integration and Phenotypic Selection on Floral Traits of <i>Ipomoea cavalcantei</i> (Convolvulaceae), a Rare, Endemic, and Endangered Species to the Amazon Ironstone Outcrops. [PDF]

Ecol Evol
This paper analyzed the evolutionary potential of Ipomoea cavalcantei (an endemic species from the Amazon) by using floral integration and phenotypic selection analysis. The analyzed population presented floral integration in style length, probably due to selective pressures from pollinators on floral traits related to pollen deposition.
Valentin-Silva A, da Costa ACG, Domingos-Melo A, da Costa LEN, Silva KR, da Silva Carvalho C, Watanabe MTC.   +6 more
europepmc   +2 more sources

Blind Testing: DNA Barcoding Sheds Light Upon the Identity of Plant Fragments as a Subsidy for Cave Conservation. [PDF]

Front Plant Sci, 2018
Plants living above and around caves represent an important, albeit poorly studied, resource within cave ecosystems. The presence of plant material (root-like structures or rhizothemes, saplings, seeds, and seedlings) correlates positively with the ...
Ramalho AJ, Zappi DC, Nunes GL, Watanabe MTC, Vasconcelos S, Dias MC, Jaffé R, Prous X, Giannini TC, Oliveira G, Giulietti AM.   +10 more
europepmc   +3 more sources

Molecular systematics, species limits, and diversification of the genus Dendrocolaptes (Aves: Furnariidae): Insights on biotic exchanges between dry and humid forest types in the Neotropics

Journal of Zoological Systematics and Evolutionary Research, Volume 59, Issue 1, Page 277-293, January 2021., 2021
We analyzed sequences from all species and most subspecies of Dendrocolaptes. We recovered the monophyly of Dendrocolaptes and that of most Dendrocolaptes species, except D. picumnus, which was paraphyletic to D. hoffmannsi. A coalescent‐based test supported 15 different evolutionary distinct lineages in Dendrocolaptes, indicating that the genus ...
Antonita Santana, Sofia Marques Silva, Romina Batista, Iracilda Sampaio, Alexandre Aleixo   +4 more
wiley   +1 more source

Impact of mid-to-late Holocene precipitation changes on vegetation across lowland tropical South America: a palaeo-data synthesis [PDF]

, 2018
A multi-proxy paleo-data synthesis of 110 sites is presented, exploring the impact of mid-to-late Holocene precipitation changes upon vegetation across Southern Hemisphere tropical South America.
Absy, Andrade-Lima, Berger, Blaauw, Boutton, Braconnot, Bush, Feldpausch, Francis E. Mayle, Hermanowski, Hueck, Nuno Veríssimo, Piperno, Richard J. Smith, Rowland, Saha, Sifeddine, Silva, Ybert   +18 more
core   +1 more source

Genomic variation in a widespread Neotropical bird (Xenops minutus) reveals divergence, population expansion, and gene flow [PDF]

, 2014
Elucidating the demographic and phylogeographic histories of species provides insight into the processes responsible for generating biological diversity, and genomic datasets are now permitting the estimation of histories and demographic parameters with ...
Brumfield, Robb T., Harvey, Michael G.
core   +3 more sources