Results 11 to 20 of about 253 (125)

Humidity and temperature interact in breaking physical dormancy in Fabaceae seeds from the Brazilian semiarid region. [PDF]

Am J Bot
Abstract Premise In semiarid ecosystems such as the Brazilian Caatinga, physical seed dormancy (PY) is critical for plant persistence when water is unpredictable, but how soil moisture and temperature regulate PY release and seed longevity in species of native Fabaceae that have different growth forms is unknown. Methods Seeds of the herbaceous species
Almeida HA, Silva Santos JA, Garcia QS.
europepmc   +2 more sources

Short-Term Puzzle Feeder Enrichment Increases Food Engagement but Not Stress-Related Behaviour in Captive Golden-Headed Lion Tamarins. [PDF]

Ecol Evol
Food puzzles significantly increased food engagement time in captive golden‐headed lion tamarins (Leontopithecus chrysomelas), with individuals spending three times longer foraging compared to standard food bowls. Grooming and activity levels showed no short‐term changes, though patterns varied across enclosures. These findings highlight puzzle feeders
Pipolo G, Chen E, Harlos E, Möllerstrom J, Morimoto J.   +4 more
europepmc   +2 more sources

First Record of Mating Involving a Melanistic Jaguar (<i>Panthera onca</i>) in the Wild: Novel Behavioural Insights Into Colour Morphs and Captive-Wild Comparisons. [PDF]

Ecol Evol
We report the first scientifically documented copulation event between a melanistic and wild‐type jaguar (Panthera onca) in the wild, captured via remote camera in the Brazilian Amazon. The observed behaviours closely mirror those seen in captive jaguars, providing preliminary insights into the effects of melanism and captivity on jaguar mating ...
Luypaert T, Hawes JE, Di Ponzio R, Peres CA, Haugaasen T.   +4 more
europepmc   +2 more sources

Caatinga diaspores: Descriptive overview of dispersal units of seasonally dry tropical forests and woodlands. [PDF]

Ecology
Abstract Dispersal unit characteristics provide crucial insights into species ecology and are essential for the conservation and restoration of ecosystems. The Caatinga, the largest ecosystem of seasonally dry tropical forests and woodlands in South America, remains underrepresented in terms of dispersal unit data, which are often scattered across the ...
da Silva FFS, Damasceno ES, de Souza Cavalcante RA, Alves do Nascimento F, Prates MB, Coelho LFM, Pifano DS, Rodrigues RG.   +7 more
europepmc   +2 more sources

Landscape factors and allochthonous congeneric species influence Callithrix aurita occurrence in Brazilian Atlantic Forest remnants. [PDF]

Ecol Evol, 2023
Callithrix aurita is isolated in forest fragments surrounded by potentially inhospitable matrices, along with the proximity of a more generalist and invasive species, thereby increasing the possibility of introgressive hybridization. The approach used here can be applied to improve conservation studies of other endangered species, such as C. flaviceps,
Loureiro NG, Guimarães-Lopes VP, Rodrigues FHG, Massara RL.   +3 more
europepmc   +2 more sources

Species Distribution Modeling Reveals Future Climate Refugia and Important Areas for Rocky Plants in Brazil's Iron Quadrangle. [PDF]

Ecol Evol
Climate change is projected to sharply reduce suitable habitats for eight endemic rupestrian plant species in Brazil's Iron Quadrangle. Ensemble niche models reveal species‐specific vulnerabilities and highlight climatic refugia and corridors that may support persistence.
Francisconi AF, Rabelo-Araujo JVDS, Anastacio ACSA, Marques APDS, Zucchi MI.   +4 more
europepmc   +2 more sources

Predictive evolutionary genomics: principles, validation, and practice. [PDF]

New Phytol
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Ortiz-Barrientos D, James ME, Liu Y, Bock D, Exposito-Alonso M, Rieseberg LH.   +5 more
europepmc   +2 more sources

Development of a SNP Panel for Geographic Assignment and Population Monitoring of Jaguars (<i>Panthera onca</i>). [PDF]

Ecol Evol
We have developed a genome‐enabled single nucleotide polymorphism (SNP) panel for use in jaguar geographic traceability, individual identification, kinship, and sexing. Our panel, named “Jag‐SNP”, comprises 459 SNPs selected from an initial pool of 13,373,949 markers based on the inter‐biome FST, followed by rigorous filtering and addition of eight sex‐
Zenato Lazzari G, Figueiró HV, Sartor CC, Donadio E, Di Martino S, Draheim HM, Eizirik E.   +6 more
europepmc   +2 more sources

From Herbarium to Landscape: New Records and Mapping Rare and Threatened Species of Brazilian Atlantic Rainforest. [PDF]

Ecol Evol
Botanical collections remain limited in the mountainous areas of the Brazilian Atlantic Rainforest, which compromises biogeographic knowledge of endangered and locally endemic species and many others that have not yet been described. These gaps hinder the accuracy of biodiversity indicators, limit the discovery and description of new species, restrict ...
Verly OM, Cabral-da-Silva LCM, Sobral M, Oliveira K, Teixeira LBA, Rufino MPMX, de Mendonça AF, Camilo KP, Torres CMME.   +8 more
europepmc   +2 more sources

Encapsulamento, crioproteção e desidratação na capacidade regenerativa de ápices caulinares de Genipa americana

Ciência Rural, 2015
Genipa americana (jenipapeiro) é uma essência florestal pertencente à família Rubiaceae, que apresenta importância econômica e ambiental, sendo valorizada para produção de alimentos, na recuperação de áreas degradadas, na composição em áreas de ...
Francielen Paola de Sá, Fernanda Vidigal Duarte Souza, Ana Veruska Cruz da Silva, Ana da Silva Lédo   +3 more
doaj   +1 more source