Results 111 to 120 of about 62,842 (247)

Studies on Typhonium (Araceae – Areae) of Thailand VI: Typhonium boonmaesp. nov. from central Thailand

Nordic Journal of Botany, EarlyView.
A species new to science, Typhonium boonmae K.Z.Hein, P.Saensouk and Saensouk, is described and illustrated from Saraburi and Lop Buri Provinces, central Thailand. A detailed description, color plates, comparisons with similar taxa, phenology, distribution, ecology, and a preliminary conservation status assessment are provided.
Piyaporn Saensouk, Surapon Saensouk, Khant Zaw Hein, Sarayut Rakarcha, Khamfa Chanthavongsa   +4 more
wiley   +1 more source

Historical data reveal earlier flowering under environmental change

Nordic Journal of Botany, EarlyView.
Global temperatures have risen ~ 1.1°C since the 1800s and the mean annual air temperature in the Arctic has increased by nearly four times the global average. Temperature has a significant effect on fundamental life‐cycle events of flora and fauna. With temperatures increasing, Arctic plants are expected to shift their active periods accordingly, with
Elizabeth Stunz, Ante Stattin Gustavsson, Christine D. Bacon   +2 more
wiley   +1 more source

Phenological response to climatic change depends on spring warming velocity

Communications Earth & Environment
Climatic change is dramatically altering phenology but generalities regarding tempo and mode of response remain limited. Here we present a general model framework incorporating spring temperature, velocity of spring warming, and species’ thermal ...
Robert Guralnick, Theresa Crimmins, Erin Grady, Lindsay Campbell   +3 more
doaj   +1 more source

Temporal evolution of soil drought stress and its relationship with climate change for tea plantations in the subtropical–warm temperate climate transition zone of China

Agricultural Water Management
Tea (Camellia sinensis (L.) Kuntze) plantation represents one of the most important artificial vegetation types in the subtropical–warm temperate climate transition zone of China.
Zhongdian Zhang, Miao Cai, Songzhu Ye, Tonghui Liu, Mingbin Huang, Wei Zhang, Shuangfeng Jiang, Chong Yao, Junhui Yan, Jiqiang Niu   +9 more
doaj   +1 more source

Life history stability under climate change: a wildflower at the northern edge of its range

Nordic Journal of Botany, EarlyView.
Stabilities of life history traits for a widespread native perennial wildflower, Rudbeckia laciniata L., are described for five populations near the northern edge of its range in North America. Theory proposes that such populations experience variable levels of stress as suitable abiotic conditions shift north or south from year to year, which ...
Robert J. Lamb, Patricia A. MacKay
wiley   +1 more source

Plant Phenology Models

In this chapter, we provide an overview of plant phenology modeling, focusing on mechanistic phenology models. After a brief history of plant phenology modeling, we present the different models, which have been described in the literature and highlight the main differences between them, i.e.
Chuine, Isabelle, de Cortazar-Atauri, Iñaki Garcia, Kramer, Koen, Hänninen, Heikki   +3 more
openaire   +3 more sources

A new old species of Tetracera (Dilleniaceae) from Espinhaço Range, Brazil

Nordic Journal of Botany, EarlyView.
Tetracera is the only genus within Dilleniaceae with a pantropical distribution. During efforts for a taxonomic revision of the neotropical species, we identified incongruences between application of names and their taxonomic identities, based on protologue and type specimen analysis. Here we describe a new species for the genus bearing a single carpel
Michelly D. F. Araújo, João V. L. Monzoli, Leandro L. Giacomin, Claudio N. Fraga   +3 more
wiley   +1 more source

Bauhinia naniflora: a new species of section Amaria (Cercidoideae: Leguminosae) from Colombia

Nordic Journal of Botany, EarlyView.
Bauhinia, the most species‐rich genus of Cercidoideae (Leguminosae), is pantropically distributed and includes four sections in the Americas. During an ongoing taxonomic revision of American Cercidoideae, a new species of Bauhinia sect. Amaria ser. Decandrae currently endemic to Colombia was identified and is here described as Bauhinia naniflorasp nov.
Luis Carlos Casas‐Restrepo, Andrés Fonseca‐Cortés, Rita Fábia da Silva Calixto, Luciano Paganucci de Queiroz, Adilva de Souza Conceição   +4 more
wiley   +1 more source

Incorporating climate data with machine learning can improve rice phenology estimation

Environmental Research Letters
Crop phenology provides essential information for crop management and production. Satellite-based methods are commonly used for phenology estimation but still struggle to capture interannual variations of phenological events.
Yiqing Liu, Weihang Liu, Tao Ye, Shuo Chen, Xuehong Chen, Zitong Li, Ning Zhan, Ran Sun   +7 more
doaj   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

Nordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz, Bárbara Pinheiro Moreira, João Marcelo Alvarenga Braga, Leonardo Paz Deble   +3 more
wiley   +1 more source