Results 81 to 90 of about 38,523 (238)

The evolution of Cayaponia (Cucurbitaceae) [PDF]

open access: yes, 2010
Premise of the study: The Cucurbitaceae genus Cayaponia comprises ∼60 species that occur from Uruguay to the southern United States and the Caribbean; C. africana occurs in West Africa and on Madagascar.
Duchen, Pablo, Renner, Susanne S.
core   +1 more source

Conservation Status of Brachycephalus Toadlets (Anura: Brachycephalidae) from the Brazilian Atlantic Rainforest [PDF]

open access: yesDiversity, 2019
The number of described anurans has increased continuously, with many newly described species determined to be at risk. Most of these new species inhabit hotspots and are under threat of habitat loss, such as Brachycephalus, a genus of small toadlets that inhabits the litter of the Brazilian Atlantic Rainforest.
Bornschein, Marcos R.   +2 more
openaire   +4 more sources

Integrating terrestrial and canopy laser scanning for comprehensive analysis of large old trees: Implications for single tree and biodiversity research

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Canopy laser scanning (CLS) enhances 3D measurements of large trees by lifting laser scanners into the canopy. Combining CLS with terrestrial laser scanning improves point cloud precision, reduces occlusion and enables detailed assessments of tree architecture and canopy biodiversity, opening new opportunities for forest ecology.
Barbara D'hont   +12 more
wiley   +1 more source

Assessing group size and the demographic composition of a canopy‐dwelling primate, the northern muriqui (Brachyteles hypoxanthus), using arboreal camera trapping and genetic tagging

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We combined arboreal camera trapping and non‐invasive genetic tagging to estimate group size in the critically endangered northern muriqui (Brachyteles hypoxanthus) in Brazil's Atlantic Forest. Both methods provided complementary insights into group size and demographic structure, while differing in their cost‐effectiveness and sampling constraints ...
Mariane C. Kaizer   +7 more
wiley   +1 more source

100 years of tropical bryophyte and lichen ecology : a bibliographic guide to the literature from 1901 - 2000 [PDF]

open access: yes, 2002
A list of 401 citations pertaining to the ecology of tropical bryophytes and lichens is presented. The bibliography includes publications addressing the biology, ecology, natural history, and physiology of bryophytes and lichens, but generally eschews ...
Merwin, Mark C., Nadkarni, Nalini M.
core  

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner   +21 more
wiley   +1 more source

Bryophytes diversity in Brazil

open access: yesRodriguésia
The bryoflora of Brazil comprises 1,524 species, 117 families, and 413 genera (11 hornworts, 633 liverworts, and 880 mosses). The most diverse families of liverworts are: Lejeuneaceae (285 species), Lepidoziaceae (48), Frullaniaceae (37), Ricciaceae (36),
Denise P. Costa, Denilson F. Peralta
doaj   +1 more source

Amphibia, Anura, Hylidae, Trachycephalus nigromaculatus Tschudi, 1838: distribution extension [PDF]

open access: yesCheck List, 2010
The geographic distribution of Trachycephalus nigromaculatus inside the state of Bahia, Brazil, is extended to the RPPN Serra Bonita in the municipality of Camacan and another area in the municipality of Boa Nova, a transition zone between the Atlantic ...
Iuri Dias   +4 more
doaj   +3 more sources

Seasonality of Epigaeic Ant Communities in a Brazilian Atlantic Rainforest

open access: yesSociobiology, 2014
In this study we assessed the leaf-litter ant community in the Cicuta Forest, a semi-deciduous forest located in the state of Rio de Janeiro, southeastern Brazil. Specifically, we tested the following hypotheses: (1) ant richness and diversity are higher in the rainy season, due to higher resource availability and better temperature and humidity ...
Pâmella Souza Martins Montine   +6 more
openaire   +3 more sources

Nitrogen use strategies of neotropical rainforest trees in threatened Atlantic Forest [PDF]

open access: yesPlant, Cell & Environment, 2003
ABSTRACTThe characteristics of nitrogen acquisition, transport and assimilation were investigated in species of an Atlantic Forest succession over calcareous soil in south‐eastern Brazil. Differences in behaviour were observed within the regeneration guilds.
Aidar, M. P. M.   +4 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy