Results 61 to 70 of about 38,523 (238)

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

Nordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho, Dennys Victor e Souza Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

Fluctuating asymmetry and environmental stress : understanding the role of trait history [PDF]

, 2013
While fluctuating asymmetry (FA; small, random deviations from perfect symmetry in bilaterally symmetrical traits) is widely regarded as a proxy for environmental and genetic stress effects, empirical associations between FA and stress are often weak or ...
Alcantara-Exposito, Angelica, De Coster, Greet, Lens, Luc, Malaki, Phillista, Matheve, Hans, Muchane, Muchai, Van Dongen, Stefan   +6 more
core   +2 more sources

BAT ASSEMBLAGE OF THE MARUMBI PEAK STATE PARK, BRAZILIAN ATLANTIC RAINFOREST

Mastozoología Neotropical, 2018
(Uploaded by Plazi for the Bat Literature Project) The great biological diversity found in tropical forests has intrigued scientists for a long time. In this study, we used a bi-dimensional niche matrix to explain the coexistence of bat species in a Brazilian Atlantic Rainforest locality. Bats were caught with a set of mist nets and manually.
Miranda, João M. D, Brito, João E. C, Bernardi, Itiberê P, Passos, Fernando C   +3 more
openaire   +2 more sources

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

Oikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz, Luis M. Primo, Francisco A. R. Santos, Isabel C. Machado   +3 more
wiley   +1 more source

Spatial variations of nitrogen trace gas emissions from tropical mountain forests in Nyungwe, Rwanda [PDF]

, 2012
Globally, tropical forest soils represent the second largest source of N2O and NO. However, there is still considerable uncertainty on the spatial variability and soil properties controlling N trace gas emission.
Boeckx, Pascal, Butterbach-Bahl, Klaus, Cizungu Ntaboba, Landry, Gharahi Ghehi, Nasrin, Kiese, Ralf, Mbonigaba Muhinda, Jean Jacques, Van Ranst, Eric, Werner, Christian   +7 more
core   +2 more sources

Ant communities (Hymenoptera: Formicidae) in an urban ecosystem near the Atlantic Rainforest [PDF]

Brazilian Journal of Biology, 2007
The relationships between an urban ecosystem located near the Atlantic Rainforest in southeastern Brazil and ant communities were studied with the objective of quantifying the ant richness and abundance in the household environment and its surroundings.
Kamura, CM., Morini, MSC., Figueiredo, CJ., Bueno, OC., Campos-Farinha, AEC.   +4 more
openaire   +7 more sources

Butterfly and moth habitat specialisation changes along an elevational gradient of tropical forests on Mount Cameroon

Oikos, EarlyView.
Niche breadth, reflecting the range of environmental conditions or resources a species can exploit, influences its distribution, persistence, vulnerability to environmental change, and interspecific interactions. The elevational niche‐breadth hypothesis predicts broader ecological niches at higher elevations due to increased environmental stress and ...
Fernando P. Gaona, Sylvain Delabye, Vincent Maicher, Szabolcs Sáfián, Jan Altman, Jiří Doležal, Štěpán Janeček, Ishmeal N. Kobe, Mercy Murkwe, Robert Tropek   +9 more
wiley   +1 more source

Floristic survey of the Mata do Junco Wildlife Refuge, Capela, Sergipe State, Brazil

Hoehnea
Seeking to expand the floristic studies for the Atlantic rainforest, we herein present, based on field trips (January 2011 to April 2013) and herbarium records, a list of vascular plants found in the Mata do Junco Wildlife Refuge, State of Sergipe ...
Eduardo Vinícius da Silva Oliveira, Leuciane Andrade Gomes, Rainan Matos Déda, Larissa Michelle Santos Melo, Ana Cecília da Cruz Silva, Marta Cristina Vieira Farias, Ana Paula do Nascimento Prata   +6 more
doaj   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger, Raquel C. Pizzardo, Bruno Vilela, Thuane Bochorny, Juliana Gastaldello Rando   +4 more
wiley   +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