Results 151 to 160 of about 595,074 (273)

Environmental and Evolutionary Correlates of Extinction Risk in a Global Biodiversity Hotspot

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
We show that larger genera have a greater number of threatened and near‐threatened species, and that extinction risk is uncoupled with evolutionary history (diversification, speciation, extinction rates and lineage age). The decoupling of diversification rates and lineage age with current extinction risk suggests drivers of extinction risk are ...
Francis J. Nge, Thi H. Chung
wiley   +1 more source

Analysis of vegetation types and floristic similarity in the Parque do Rio Doce, Minas Gerais

open access: yes, 2015
O objetivo deste trabalho é analisar as formações vegetais observadas no Parque Estadual do Rio Doce – PERD.  A área de estudo está inserida na Reserva da Biosfera da Serra do Espinhaço – RBSE, criada em 2005 através do programa de Reservas da Biosfera da Organização das Nações Unidas para a Educação, a Ciência e a Cultura – UNESCO.
Padoan, Lucas de Lima Fernandes   +1 more
openaire   +1 more source

Prospective Teachers' Subject Matter Knowledge of Similarity

open access: yes, 2004
Teachers' knowledge of the subject matter needed for teaching is seen as diverse, multidimensional, and vital to a teachers' knowledge base for teaching (Ball, Lubienski, & Mewborn, 2001; Cooney & Wilson, 1995; Even, 1993; Grossman, Wilson, &
Davis, Clarence Edward
core  

Current and Future Distributions of Allium karataviense and A. turkestanicum in Central Asia Using MaxEnt Modeling

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
The study used Maximum Entropy (MaxEnt) modeling to assess the current and future potential distributions of Allium karataviense Regel and A. turkestanicum Regel. The modeling was conducted under three climate change scenarios (SSP1‐2.6, SSP2‐4.5, and SSP5‐8.5) across three future periods, 2030s, 2070s, and 2090s. Based on the results, the Western Tien
Alan Ibraimov   +3 more
wiley   +1 more source

Comparing Floristic Diversity between a Silviculturally Managed Arboretum and a Forest Reserve in Dambulla, Sri Lanka

open access: yesJournal of Tropical Forestry and Environment, 2014
Repeated slash and burn cultivation creates wasteland with thorny shrubs, which then takes a long time to become secondary forests through serial stages of succession. Assisted natural regeneration through silvicultural management is a useful restoration
B. D. Madurapperuma   +4 more
doaj  

Unearthing Forest History: Integrating Soil Charcoal Macrofossils and Pollen Reveals Delayed Forest Responses to Holocene Climatic Transitions in Boreal–Temperate Ecotone

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
This study reconstructs long‐term vegetation dynamics at the boreal–temperate forest ecotone in eastern Canada using soil charcoal, pollen records, and forest inventories. Results reveal a delayed expansion of thermophilous tree species and a late borealization of the landscape in relation to climate change, alongside recent stand‐scale shifts driven ...
Cassandra Rioux‐Couture   +2 more
wiley   +1 more source

Long‐term trends in greenness in the alpine zone of northeastern North America from remote sensing

open access: yesEcosphere, Volume 17, Issue 9, September 2026.
Abstract Alpine zones above treeline in the Appalachian Mountains and adjacent ranges of northeastern North America support distinctive ecological communities that thrive where conditions are too harsh for trees to grow. These communities differ from alpine zones elsewhere on the continent and are a regionally important source of floristic biodiversity,
Jonathan W. Chipman   +2 more
wiley   +1 more source

STRUCTURE OF MAIN ARBOREAL SPECIES IN CRUCE CABALLERO PARK AND ITS FLORISTIC SIMILARITY WITH AREAS FROM ARGENTINE AND BRAZIL

open access: yesCiência Florestal, 2010
The present work aimed to study the fitossociologic structure and floristic similarity among seasonal and mixed forests of Argentina and Brazil. Cruce Caballero Park with 522 hectares where the method of multiple plots was adopted with (20 x 10 m).
Román Carlos Ríos   +2 more
openaire   +1 more source

Piper longiapiculatum (Piperaceae), a New Species From the Brazilian Amazon Piper longiapiculatum (Piperaceae), uma Nova Espécie da Amazônia Brasileira

open access: yesFeddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT In order to address the many lacunae in Amazonian Piper taxonomy and geography, we performed a field expedition in the Serra do Divisor National Park (Acre state, Brazil), resulting in the discovery of a new species, Piper longiapiculatum, herein described and compared to morphologically similar taxa.
Gabriel Marcusso Marcusso   +4 more
wiley   +1 more source

Analysis of floristic similarity between forest remnants from the upper Paraná river floodplain, Brazil - doi: 10.4025/actascibiolsci.v34i3.8500

open access: yesActa Scientiarum: Biological Sciences, 2012
The vegetation from the upper Paraná river floodplain is a fragment of Seasonal Semideciduous Forest (SSF) that presents fields, lowlands and extensive areas of pasture along with forest formations. Aiming to accomplish analyses of floristic similarity between riparian forests remnants in this floodplain, an analysis using nine surveys was performed ...
Slusarski, Simone Rodrigues   +1 more
openaire   +3 more sources

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