Results 91 to 100 of about 90,719 (314)

Arctic tundra ecosystems under fire—Alternative ecosystem states in a changing climate?

open access: yesJournal of Ecology, Volume 113, Issue 5, Page 1042-1056, May 2025.
Climate change is altering the Arctic tundra, with fires driving vegetation shifts. We hypothesise that post‐fire recovery, shaped by climate change, may not return to pre‐fire conditions, leading to either increased woody vegetation or grass dominance. Photo: The Mingvk Lake fire, a lightning start, burned nearly 8500 hectares in July 2015.
Ramona Julia Heim   +18 more
wiley   +1 more source

Activities of Military Topographers in Western Siberia in Foreign and Domestic Policy of the Russian Empire in 19th Century

open access: yesНаучный диалог, 2020
The activities of military topographers in Western Siberia to provide cartographic information on the foreign and domestic policies of the Russian Empire in Central Asia and Siberia in the 19th century are considered in the article.
Evgeny V. Igumnov
doaj   +1 more source

Are disjunct populations of Betula costata in the Japanese Archipelago glacial relict? An attempt at verification by species distribution modeling

open access: yesEcological Research, EarlyView.
To test the working hypothesis that the Japanese population of Betula costata is a glacial relict, suitable habitats for the species in the Last Glacial Maximum (LGM), mid‐Holocen, and present were projected using the species distribution model (SDM) approach.
Takuto Shitara   +4 more
wiley   +1 more source

Ecophysiology of seed germination in riparian trees and implications for restoration and conservation

open access: yesPlant Species Biology, EarlyView.
The germination responses of seeds of the four species to temperature, light, and cold stratification reveal the mechanism that delays germination from autumn/early winter (time of seed dispersal) until spring, when conditions are favorable for seedling establishment.
Katerina Koutsovoulou   +2 more
wiley   +1 more source

Hired Childcare and Changing Maternal Perceptions Among the Urban Poor: Baby Farming in the Western Lands of Late Imperial Russia

open access: yesGender &History, EarlyView.
ABSTRACT This article explores baby farming in the western regions of late imperial Russia, framing it as a childcare practice of the lower‐classes – a form of crèche for working mothers. The article delves into the public discourse surrounding baby farming among the educated strata and contrasts it with how this practice was viewed by the lower ...
Ekaterina Oleshkevich
wiley   +1 more source

cba‐miR‐222‐3p involved in photoperiod‐induced apoptosis in testes of striped hamsters by targeting TRAF7

open access: yesIntegrative Zoology, EarlyView.
The cba‐miR‐222‐3p affects the MAPK signaling pathway by targeting TRAF7, thereby participating in the induction of apoptosis in the testes of striped hamsters under different photoperiods. Abstract The role of miRNAs in the regulation of seasonal reproduction in rodents, particularly in relation to photoperiod changes, is still poorly understood ...
Shuo WANG   +8 more
wiley   +1 more source

Environmental changes on the northern Taymyr Peninsula (Russian Arctic) during the last 62 ka inferred from the lacustrine pollen record

open access: yesBoreas, EarlyView.
Environmental changes on the northern part of Taymyr Peninsula during the last 62 ka were reconstructed based on pollen assemblages throughout a 46‐m‐long sediment core from Lake Levinson‐Lessing (74°27′54″N, 98°39′58″E). Environmental changes on the northern Taymyr Peninsula were reconstructed based on a new pollen record from a 46‐m‐long sediment ...
Andrei A. Andreev   +7 more
wiley   +1 more source

Wildlife trade investigations benefit from multivariate stable isotope analyses

open access: yesBiological Reviews, EarlyView.
ABSTRACT The investigation of wildlife trade and crime has benefitted from advances in technology and scientific development in a variety of fields. Stable isotope analysis (SIA) represents one rapidly developing approach that has considerable potential to contribute to wildlife trade investigation, especially in complementing other methods including ...
Tracey‐Leigh Prigge   +6 more
wiley   +1 more source

Host species determines egg size in Oriental cuckoo [PDF]

open access: yes, 2019
© 2018 The Zoological Society of London.The Oriental cuckoo Cuculus optatus is an obligate brood parasite associated with species of the genus Phylloscopus.
Bachurin   +54 more
core   +1 more source

Lords of the flies: dipteran migrants are diverse, abundant and ecologically important

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insect migrants are hugely abundant, with recent studies identifying the megadiverse order Diptera as the major component of many migratory assemblages. Despite this, their migratory behaviour has been widely overlooked in favour of more ‘charismatic’ migrant insects such as butterflies, dragonflies, and moths.
Will L. Hawkes   +2 more
wiley   +1 more source

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