ecology
2023-09-21 @ 11.07.48 ∈ Suomeksi
Miten vaarallinen vieraslajikala päätyi pirkanmaalaiseen lampeen? Asiantuntijan mukaan joku levittää aggressiivista kalaa tahallaan
Kangasalan Vehoniemen kylällä sijaitsevasta lammesta löytyi heinäkuussa kala, jonka Luonnonvarakeskus on nyt varmistanut koko EU:n alueella haitalliseksi luokitelluksi aurinkoahveneksi. […] Kala kestää hyvin vaikeita olosuhteita, eivätkä esimerkiksi huono vedenlaatu tai pakkastalvet haittaa sitä.
2023-09-19 @ 20.27.04 ∈ Suomeksi
2023-08-17 @ 13.53.14 ∈ Suomeksi
Päiväperhosten kannat vahvistuneet ja kimalaiset toipuneet viime kesän notkahduksesta | Suomen ympäristökeskus
Kuluneena kesänä useimmat päiväperhoslajit ovat esiintyneet edellisvuotta runsaampina. Myös kimalaisten lisääntyminen on onnistunut, sillä heinäkuusta lähtien niitä on tavattu tuntuvasti edellisvuotta runsaammin.
2023-07-26 @ 18.44.06 ∈ In English
Spraying just 12% of the room kills 85% of mosquitoes, study shows
The hotter the room, the further down the mosquitoes tended to rest, as the lower part of the room is typically cooler. Spraying just in this bottommost zone could kill over 85% of the mosquitoes in the house, according to the author's estimates—especially if this zone is colored black, as Aedes aegypti are known to prefer to perch on dark surfaces.
2023-06-23 @ 11.55.22 ∈ In English
As Arctic warms, caribou and muskoxen slow biodiversity loss
Diversity declined by about 0.85 species per decade when herbivores were excluded, whereas this decline was only about 0.33 species per decade when they were allowed to graze. The scientists attributed this to herbivores keeping species such as shrubs, dwarf birch and gray willow in check so that other plants could better flourish.
2023-06-14 @ 19.35.34 ∈ In English
Climate change has increased diversity of butterflies in Sweden and Finland, may have major ecosystem consequences
New research shows that butterflies have expanded their ranges over the past 120 years to cope with a warmer climate in Sweden and Finland. Although driven by a warmer climate, range expansions have also been influenced by human land use and vary according to species thermal tolerances and habitat preferences.
2023-06-11 @ 14.05.01 ∈ Suomeksi
HS Ympäristö | Tuulivoimala voi olla kotkalle kohtalokas – jo kymmeniä kuolleita lintuja löydetty
Tuulivoimalan silpomaksi on Suomessa päätynyt tiettävästi 48 merikotkaa, kertoo Hannu Tikkanen Metsähallituksesta. […] Tiettävästi yhtään maakotkaa ei ole vielä Suomessa kuollut tuulivoimalatörmäyksessä, sillä nykyisiä voimaloita ei juuri ole niiden reviireillä.
2023-06-10 @ 19.37.00 ∈ In English
Hidden carbon: Fungi and their ‘necromass’ absorb one-third of the carbon emitted by burning fossil fuels every year
[New] research shows [mycorrhizal fungi] may quietly be playing a bigger role in storing carbon than we thought. [Researchers] estimate the world's plants are transferring a staggering 3.58 billion tonnes of carbon per year to this underground network.
2023-06-10 @ 19.32.15 ∈ In English
Invasive oak processionary moth caterpillars cause concern for England’s trees
An insect that can be hazardous to human health is spreading across southeast England. […] "As the oak processionary moth is a relatively recent arrival to the UK, any potential predators haven't had much time to familiarize themselves with it. This means the caterpillars are able to spread faster than they would otherwise."