Results 81 to 90 of about 23,206 (256)

Fluctuations of the population of Daphnia laevis Birge 1878: a six-year study in a tropical lake

open access: yesBrazilian Journal of Biology
The fluctuation of the population of Daphnia laevis in Lake Jacaré (Middle River Doce, Minas Gerais) was monitored monthly (at one point in the limnetic region) for six years (2002-2007) as part of the Program of Long-Term Ecological Research (LTER/UFMG).
LPM. Brandão   +4 more
doaj   +1 more source

Impacts of nutrient loading and fish grazing on the phytoplankton community and cyanotoxin production in a shallow tropical lake: Results from mesocosm experiments. [PDF]

open access: yesMicrobiologyopen, 2022
Ahoutou MK   +16 more
europepmc   +1 more source

When a Week Is Not A Week: How Temporal Boundaries Shift Regulatory Focus and Consumer Preference

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT Does consumer perception of a sales event change if it falls across a calendar boundary (e.g., next month) versus within the current month, holding objective time constant? We investigate this question in the context of Cyber Monday, the global shopping event occurring the Monday after the U.S. Thanksgiving holiday.
David DeFranza, Promothesh Chatterjee
wiley   +1 more source

Taxonomic revision of the genus Tzveleviochloa (Poaceae, Aveninae) in India

open access: yesNordic Journal of Botany, EarlyView.
The taxonomy of Tzveleviochloa in India is revised based on morphological evidence, comprehensive observations of herbarium specimens and field records, and several botanical explorations in the study area. The accepted diversity is increased from two to five species, including two recently described species. The genus is distributed in the Western and
Dileshwar Prasad   +5 more
wiley   +1 more source

Phytoplankton functional group dynamics and environmental drivers in a tropical monomictic lake (Lake Yambo, Philippines)

open access: yesJournal of Limnology
Tropical monomictic lakes, characterized by a single annual mixing event and prolonged stratification, are particularly sensitive to climatic and anthropogenic pressures.
Dimple May Gianne Q. Dumaguit   +2 more
doaj   +1 more source

Additions to the Acanthaceae of the Flora of Tropical East Africa: two new species from northern Kenya

open access: yesNordic Journal of Botany, EarlyView.
The new species Barleria kulalensis I.Darbysh. & Q.Luke and Dicliptera huriensis I.Darbysh. & Q.Luke are described and illustrated and their extinction risk is assessed provisionally. The former is based on Barleria sp. G of the Flora of Tropical East Africa (FTEA), with recent field observation and collection of this species from the foothills of ...
Iain Darbyshire, Quentin Luke
wiley   +1 more source

Drivers of stability in plankton communities: dominance, asynchrony, and averaging effects across temporal, spatial and trophic scales

open access: yesOikos, EarlyView.
The origins of ecosystem stability have long intrigued ecologists. Recent theoretical advancements highlight three primary mechanisms driving stability: dominance, asynchrony and averaging. While plant community stability has been extensively studied, our understanding of marine community stability remains limited. Plankton, as key components of marine
Guido Occhipinti   +4 more
wiley   +1 more source

Hunting motivations, behaviour and forest access: Characterising wildlife hunting practices in a multi‐ethnic, forested landscape of Brunei Darussalam, Southeast Asia

open access: yesPeople and Nature, EarlyView.
Abstract Unsustainable hunting practices can alter population dynamics, driving biodiversity declines, which leads to ‘empty forests’. Understanding hunting behaviour, including motivations for hunting and relationships with market drivers, and access to hunting grounds are important to develop affirmative policies to stem biodiversity loss.
Natasha L. M. Mannion   +6 more
wiley   +1 more source

Effects of El Niño on the dynamics of Lake Alchichica, central Mexico [PDF]

open access: yesGeofísica Internacional, 2003
Lake Alchichica is a deep, warm-monomictic lake in Puebla State, central Mexico. Water temperature, dissolved oxygen and chlorophyll a annual concentration patterns are compared under ENSO and non-ENSO conditions.
Alfonso Lugo, Javier Alcocer
doaj  

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