Results 131 to 140 of about 178,267 (356)

A new species from an inselberg in the Brazilian Atlantic forest: Stachytarpheta forzzae (Verbenaceae), supported by morphological, palynological and anatomical evidence

open access: yesNordic Journal of Botany, EarlyView.
We describe Stachytarpheta forzzae, a new species from an inselberg located in the municipality of Guaratinga, state of Bahia, within the Brazilian Atlantic forest. Morphologically, it resembles S. sprucei, the only other species of the genus known to inhabit inselbergs.
Pedro Henrique Cardoso   +5 more
wiley   +1 more source

Seasonal Growth of Waterhyacinth in the Sacramento/San Joaquin Delta, California [PDF]

open access: yes, 2005
Waterhyacinth ( Eichhornia crassipes (Mart.) Solms), is a serious problem in the Sacramento/San Joaquin Delta, California. There is little published information on its phenology or seasonal growth in this system. Waterhyacinths were sampled at 2 to
Ksander, G. G., Spencer, David F.
core  

Recurrent drought amplifies drought impacts and increases seasonal synchrony in mountain grassland communities

open access: yesOikos, EarlyView.
Climate change increases the recurrence of drought events with strong repercussions on grassland ecosystems. While the effects of single drought events on ecosystem structure and functioning are well understood, it is largely unknown whether and how recurrent drought events modify ecosystem responses to subsequent drought.
Lena M. Müller   +4 more
wiley   +1 more source

Incorporating climate data with machine learning can improve rice phenology estimation

open access: yesEnvironmental 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   +7 more
doaj   +1 more source

Study on the changes in the temperature sensitivity of spring phenology of typical woody plants in the Qinling Mountains region

open access: yesFrontiers in Earth Science
To reveal the responses of plant phenology and climate change in the Qinling Mountains region, the phenological data of seven woody plants in the Qinling Mountains region from 1964 to 2020 were selected to analyze the patterns and characteristics of ...
Shanhong Zhang   +4 more
doaj   +1 more source

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

open access: yesOikos, 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   +3 more
wiley   +1 more source

The Impact of Urbanization on Spatial–Temporal Variation in Vegetation Phenology: A Case Study of the Yangtze River Delta, China

open access: yesRemote Sensing
The response of vegetation phenology to urbanization has become a growing concern. As impervious surfaces change as urbanization advances, the variation in vegetation phenology at the dynamic urbanization level was analyzed to significantly quantify the ...
Enyan Zhu   +4 more
doaj   +1 more source

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

open access: yesOikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald   +7 more
wiley   +1 more source

Relationships between flowering phenology and community composition in an experimental restoration of northwest prairies

open access: yesEcosphere
Phenology, the timing of biological life cycles, is a key indicator of global climatic change, with numerous studies showing that species' phenologies are shifting in response to climate change.
Bryn Callie, Sarah Erskine, Jeffrey Diez
doaj   +1 more source

Addressing biases in sliding window analysis gives new insight into the response of parturition date to weather in a wild mammal

open access: yesOikos, EarlyView.
Animal breeding phenology in temperate and high latitude regions is often predicted by weather variables, such as temperature. Much work on this topic has focused on taxonomic groups that employ adaptive plastic responses to annual variation in an environmental cue, with analytical approaches developed to determine when weather has an effect and the ...
Kirsty H. Macphie   +6 more
wiley   +1 more source

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