むしのみち
@naturalist2008.bsky.social
📤 59
📥 49
📝 43
学問、研究、科学、博物学(自然史)、生態学、昆虫学に関する情報を共有できれば幸いです。
自然条件下でもマメガムシはカエルのお尻から脱出しているか? 野外で採集したウシガエル幼体から、様々な水生甲虫に混じってマメガムシの死体も糞として排出された。注目すべきは、1個体が生存していたこと。つまり、自然条件下でも、マメガムシはカエルに食べられても生きて脱出している可能性は高い。
doi.org/10.1002/ece3...
bsky.app/profile/natu...
add a skeleton here at some point
about 19 hours ago
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どのようにカエルの尻穴から脱出しているか? マメガムシは🐸内部から力技で尻穴をこじ開けているか、または🐸内部から刺激して脱糞を誘導しているか、いずれかは未検証。 ただし、動画を見る限り、脱糞誘導説が有力か?
doi.org/10.1002/ece3...
doi.org/10.1016/j.cu...
bsky.app/profile/natu...
add a skeleton here at some point
about 20 hours ago
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マメガムシは🐸体内で死んで糞として排出されるより(数十時間)、生還する場合では短時間(数時間)で体外に脱出。 長時間🐸体内で生きられないこと、また、🐸体内を積極的に前進して総排出腔から脱出していることが示唆される。
doi.org/10.1002/ece3...
bsky.app/profile/natu...
add a skeleton here at some point
about 20 hours ago
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ウシガエルのお尻の穴からも脱出! マメガムシはカエルに食べられても、総排出腔から生きて脱出することが知られていた。今回の研究では、在来カエル5種では57〜91%の頻度で、外来種のウシガエル幼体からも71%の高頻度で脱出できることが判明した。
doi.org/10.1002/ece3...
EcolEvol 以前の論文:
doi.org/10.1016/j.cu...
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about 22 hours ago
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むしのみち
BABOON_SAI
2 days ago
共著論文が出版されました。環境DNAを使って水田の生物多様性を評価する際に、どの場所で採水すれば良いか?何箇所から採水すれば良いか?サンプルを混ぜた方が効率が良いか?等を、鳥類・魚類・昆虫類を対象に検討した論文です。主著者の山本さん、お疲れ様でした。 Yamamoto S. et al. Optimal Environmental DNA Sampling Strategy for Comprehensively Assessing Biodiversity in Rice Paddy Fields.
onlinelibrary.wiley.com/doi/10.1002/...
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Optimal Environmental DNA Sampling Strategy for Comprehensively Assessing Biodiversity in Rice Paddy Fields
Environmental DNA (eDNA) metabarcoding identified 118 insect, 14 fish, and 6 bird operational taxonomic units (OTUs) in rice paddy water samples. Resampling analyzes indicated that four sampling repl....
https://onlinelibrary.wiley.com/doi/10.1002/edn3.70224
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むしのみち
tomoyuki matoba
3 days ago
グアテマラの熱帯雨林に同所分布するネコ科4種の食性の違い。糞内容物への出現率で、ジャガーはペッカリーとアルマジロが突出して高く、ピューマはジェネラリストだがシカよりサル(クモザル・ホエザル)を多く食べている。オセロットとマーゲイはどちらもオポッサムと齧歯類が中心だが、マーゲイはそれぞれの樹上性種をより頻繁に捕食。オセロットはジャガーにかなり捕食されているが、空間的回避はしていない
phys.org/news/2025-11...
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Vertical hunting helps wild cats coexist in Guatemala's forests, study finds
A new study reveals that four wild cat species living in the same rainforest habitat in Guatemala reduce competition for food by hunting in different vertical zones, some in trees and others on the gr...
https://phys.org/news/2025-11-vertical-wild-cats-coexist-guatemala.html
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むしのみち
New Phytologist
5 days ago
Balanophora evolution, metabolic retention in reduced plastids, and obligate agamospermy Svetlikova et al.
@petrasvetlikova.bsky.social
@tugutuguk
@filiphusnik.bsky.social
nph.onlinelibrary.wiley.com/share/EINFCW...
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むしのみち
Science Magazine
20 days ago
For the first time, scientists have documented an unusual defense: Some species of arachnids build giant doppelgängers on their webs, creating a frightening deception that scares off would-be killers.
https://scim.ag/487Myn0
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むしのみち
Harano T
20 days ago
ラッコは並外れて大きな子を産むように進化していることを示した論文が、Journal of Evolutionary Biologyに掲載されました。
doi.org/10.1093/jeb/...
イタチ科における子の数とサイズの進化的トレードオフの中で、ラッコで特異的に、子のサイズが増大して子の数が減少しているだけでなく、子の数を減らして資源を回す以上に子のサイズが増大する進化が起こっている、というのが主要な結論です。
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Distinctive increase in offspring size in sea otters: evolutionary changes in and beyond the trade-off against offspring number
Abstract. Offspring size and number, key fitness components, are expected to evolve under a trade-off between them. In mammals, the evolution of larger off
https://doi.org/10.1093/jeb/voaf121
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むしのみち
Prof. Christine Böhmer
28 days ago
Unusual low-risk/high-gain strategy in small
#bats
: Short search and pursuit times with high hunting success rates and targeting prey approaching their own body size of 30 g. Baier et al 2025
@currentbiology.bsky.social
Extreme hunting efficiency in a carnivorous bat
doi.org/10.1016/j.cu...
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むしのみち
Trends in Ecology & Evolution
28 days ago
Online now: Venom versus poison: delivery mode matters
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Venom versus poison: delivery mode matters
We thank Volker Herzig [1] for his interesting commentary on our recent paper [2]. We welcome the opportunity to clarify some points. Herzig structures his critique around three main arguments. First, he states that our venom definition requires the mechanical delivery of venom 'by specialised morphological structures', while excluding chemical delivery. Second, he disagrees with us that delivery via an injury should be an integral part of the concept of venom, and he proposes an alternative definition that does not reference mode of delivery.
http://dlvr.it/TP3tmn
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むしのみち
PLOS Biology
28 days ago
#Evolution
of complex adaptations can involve changes in multiple traits that lack standalone function.
@benitoexplains.bsky.social
&co show that leaf masquerade in
#katydids
evolved via concurrent modification in wing colour & shape, driven by evolutionary synergy
@plosbiology.org
🧪
plos.io/4oUE741
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むしのみち
Oikos
about 1 month ago
🦅🌱Secondary seed dispersal by migrant harriers in India 📷 © Sankar Subramanian
vist.ly/4cfkr
#Diploendozoochory
#Grasslands
#OpenNaturalEcosystems
#Raptor
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むしのみち
Trends in Ecology & Evolution
about 1 month ago
Online now: The Janzen–Connell hypothesis and seed masting
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The Janzen–Connell hypothesis and seed masting
The Janzen–Connell hypothesis (JC effect) has been proposed as a mechanism for explaining high tropical tree diversity via negative conspecific density dependence imposed by natural enemies. Seed masting describes the uneven investment in reproduction between years, and could be a mechanism for reducing seed predation by means of predator satiation. JC effects select for wider dispersal kernels, allowing species to escape enemies in space, while the predator-satiation model of seed masting assumes escape from predators in time. Although representing contrasting ecological dynamics, both models are predicated on similar assumptions: that tree recruitment is limited by seed mortality via natural enemies. We suggest that the individual fitness advantages of masting and JC dynamics would be better understood by considering both mechanisms together.
http://dlvr.it/TNmxsl
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Buzzing boundaries: tiny caterpillars vibrate to defend leaf tip territories.
doi.org/10.1242/jeb....
JExpBiol
bsky.app/profile/nikk...
add a skeleton here at some point
about 2 months ago
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むしのみち
日経サイエンス
about 2 months ago
イモムシの振動術 〜動物が敵に遭遇した場合,一般には戦うか逃げるか,単に固まる。しかし,ある小さなイモムシはまったく別の行動を取る。ふるえるのだ。 日経サイエンス2025年11月号より
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イモムシの振動術〜日経サイエンス2025年11月号より|日経サイエンス
体を激しくふるわせて葉っぱの縄張りを守っている 動物が敵に遭遇した場合,一般には戦うか逃げるか,単に固まる。しかし,ある小さなイモムシはまったく別の行動を取る。ふるえるのだ。...
https://www.nikkei-science.com/?p=76865
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ハチが毒針で刺すのは、有剣類の祖先が産卵管を毒針に変化させたことに由来する。オスは毒針を持たないが、天敵に対する武器としての偽の針を、交尾器において少なくとも2つの系統で、腹板において少なくとも3つの系統で、独立に獲得したと推定される。
doi.org/10.1002/ecy....
Ecology
bsky.app/profile/natu...
bsky.app/profile/natu...
add a skeleton here at some point
about 2 months ago
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オスはニセの針で身を護る。 ハチのオスは毒針をもたないが、ツチバチ類のオスは腹部末端に3本の棘(偽針)をもつ。キオビツチバチのオスをアマガエルに与えたところ、87%が防衛に成功したが、棘を除去すると防衛成功率は27%に低下した。
doi.org/10.1002/ecy....
Ecology
bsky.app/profile/natu...
add a skeleton here at some point
about 2 months ago
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むしのみち
Proceedings of the National Academy of Sciences
2 months ago
Many frogs can be either green or brown—two colors that can help them stay hidden depending on their environment. A study explores how evolution can maintain multiple color morphs for millions of years through long-term balancing selection. In PNAS:
www.pnas.org/doi/10.1073/...
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キイロサシガメは幼虫と成虫で異なる擬態パートナーをもつ。 幼虫は橙・黒色でアオバアリガタハネカクシ成虫と 成虫は黄・黒色でミイデラゴミムシ成虫と擬態関係にある。
doi.org/10.7717/peer...
PeerJ
bsky.app/profile/natu...
bsky.app/profile/natu...
add a skeleton here at some point
3 months ago
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アオバアリガタハネカクシ成虫とキイロサシガメ幼虫*との擬態関係。 体色が似た両種は化学物質でカエルから身を護るが、後者の方が前者よりも防衛力は高い。
doi.org/10.7717/peer...
PeerJ
youtu.be/w_QkYyNjRZg
YouTube *成虫はミイデラゴミムシ成虫と擬態関係
bsky.app/profile/natu...
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3 months ago
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むしのみち
パンテオン
3 months ago
「二ホンアマガエル」は東日本と西日本で別種だった! 2種の見分け方と、見つけやすい“穴場”を解説
dot.asahi.com/aerakids/art...
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「二ホンアマガエル」は東日本と西日本で別種だった! 2種の見分け方と、見つけやすい“穴場”を解説 | AERA with Kids+
緑色の小さな体と大きな鳴き声が特徴で、日本各地で見られるニホンアマガエル。そんなカエルが、実は東日本と西日本では別種というのを、知っていますか?そして東日本の種は「新種」としてこのたび新たに認定さ…
https://dot.asahi.com/aerakids/articles/-/258755
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むしのみち
Nature
3 months ago
A common type of ant in Europe breaks a fundamental rule in biology: its queens can produce male offspring that are a whole different species
go.nature.com/467N16m
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‘Almost unimaginable’: these ants are different species but share a mother
Nature - Ant queens of one species clone ants of another to create hybrid workers that do their bidding.
https://go.nature.com/467N16m
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むしのみち
Zoological Journal of the Linnean Society
3 months ago
The rise of [the] beetles (Coleoptera) represents one of the most remarkable musical periods...I mean phenomena in the history of life: from membranous forewings to hardened elytra, they learned how to conquer wood-related niches, aiding in their success! But how and why? 🌍🧪👇
doi.org/10.1093/zool...
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むしのみち
Zoological Journal of the Linnean Society
3 months ago
Terrestrial flatworms have helped uncover the evolutionary processes shaping
#Biodiversity
in the Brazilian Atlantic Forest, as their limited dispersal & sensitivity to environmental change reflect the evolutionary history of the forest! 🌍🧪👇
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Unravelling the cryptic diversity of the low-dispersal land planarian Cephaloflexa bergi to elucidate diversification processes in the Brazilian Atlantic Forest
Abstract. The terrestrial flatworm Cephaloflexa bergi (Tricladida: Platyhelminthes) is an excellent model for elucidating the evolutionary processes shapin
https://doi.org/10.1093/zoolinnean/zlaf096
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むしのみち
Zoological Journal of the Linnean Society
4 months ago
Tadpoles have...TEETH?! An evolutionary novelty of anuran tadpoles, the taxonomic distribution of keratinized labial teeth remains a mystery. Yet here, variation in row number was studied in a phylogenetic context! If you're bitten by a tadpole do you turn into a frog..? 🌍🧪👇
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Diversity and development of labial tooth row formulae in tadpoles
Abstract. Keratinized labial teeth of the oral apparatus are a conspicuous evolutionary novelty of anuran tadpoles. Although several comparative studies ha
https://doi.org/10.1093/zoolinnean/zlaf082
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パンテオン
4 months ago
ずっと間違ってたのかな…。クモは海からやってきた生物かも
www.gizmodo.jp/2025/07/we-m...
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ずっと間違ってたのかな…。クモは海からやってきた生物かも
祖先は海の中の生物?地球上にいるすべての生物は、厳密に言うと起源は海ってことになります。最も初期の生物が陸へ這い上がり、さまざまな動物や昆虫へと進化したからです。長い間、科学者たちはクモやその近縁種も陸に上がってきてから誕生し、進化してきたと考えてきました。海で誕生?しかし、Current Biology誌に発表された新しい研究では、「クモは陸上で誕生した」という既存の見解に異を唱えています。こ
https://www.gizmodo.jp/2025/07/we-might-have-been-wrong-about-where-spiders-came-from.html
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むしのみち
Proceedings of the National Academy of Sciences
5 months ago
Lac insects are the source of pigments used in dyes, paints, lacquer, and jewelry. The insects have two endosymbionts—the bacteria Wolbachia and a yeast-like symbiont, which produces its coveted bright red pigment, laccaic acid. In PNAS:
www.pnas.org/doi/10.1073/...
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蛾が好んで訪れる花を解明! 兵庫県下で、植物34種に夜間訪花するガ類245種を記録し解析。結果、蜜源の深い(花筒が長い)植物には、口吻の長いスズメガ類が、蜜源の浅い花には口吻の短いガ類が訪れる傾向があった。
doi.org/10.1007/s118...
ArthropodPlantInteract
rdcu.be/ethCB
5 months ago
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むしのみち
Proceedings of the National Academy of Sciences
6 months ago
Assassin bugs use their prey’s defensive resin as a hunting tool. Assassin bugs dip their forelegs in the sticky resin that stingless bees use to defend their nests, then capture the bees with their own resin, which the bees are attracted to. In PNAS:
www.pnas.org/doi/10.1073/...
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むしのみち
Functional Ecology
7 months ago
📰Published📰 The role of insularity: plants have few ornithophilous traits but are visited by morphologically more distinct hummingbirds in the Caribbean islands🌺
buff.ly/aLG0JDa
🧪🌍
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The role of insularity: plants have few ornithophilous traits but are visited by morphologically more distinct hummingbirds in the Caribbean islands
Maximillian G. R. Vollstädt, Rasmus D. Jensen, Pietro K. Maruyama, Matthias Schleuning, Francielle P. Araújo-Hoffmann, Marlies Sazima, Jesper Sonne, Taia S. O. Schrøder, Fredrik Møller-Stranges, St…
https://buff.ly/aLG0JDa
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むしのみち
Science Magazine
7 months ago
A rare carnivorous caterpillar—previously unknown to biologists—stalks spiderwebs for food whilst dressed in the remains of its prey, a new Science study reports. This new species, dubbed the “bone collector,” is found only on a single mountainside on the Hawai’ian island of Oa’hu.
scim.ag/3GBDcV7
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Takefumi Nakazawa
8 months ago
行動生態学者は何をすべきか。生物間相互作用や環境との相互作用をもっと理解し、自然史をもっと活用し、良い疑問や検証可能な仮説についてもっと考えようと。あと、好奇心も大事などなど。
academic.oup.com/beheco/advan...
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What should we be doing as Behavioural Ecologists?
Abstract. It is worthwhile to consider what we are doing as Behavioural Ecolgists. Tinbergen and others did an excellent job of focussing the field and its
https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/araf029/8103976?rss=1
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むしのみち
Science Magazine
8 months ago
The amount of water stored in more than half of the largest lakes and reservoirs worldwide is declining, a 2023 Science study found. The results underscore the importance of better water management to protect essential ecosystem services.
scim.ag/41GM96M
#WorldWaterDay
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Satellites reveal widespread decline in global lake water storage
Two-thirds of Earth's large lakes have decreased in volume over the past three decades.
https://scim.ag/41GM96M
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むしのみち
ESA Journals
9 months ago
New from Ecology's
#TheScientificNaturalist
series: Hummingbird chick...or stinging caterpillar? A new study makes the case for a rare form of mimicry in birds 📄Potential caterpillar mimicry in a tropical hummingbird
esajournals.onlinelibrary.wiley.com/doi/full/10....
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むしのみち
Nature
9 months ago
Male blue-lined octopuses inject females with venom during mating to avoid being eaten by their partners
https://go.nature.com/3R8vRym
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Bad romance: male octopuses inject deadly venom into their mates
Nature - The paralysing toxin deployed by the male blue-lined octopus might help to protect him from being eaten.
https://go.nature.com/3R8vRym
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Male blue-lined octopuses (Hapalochlaena fasciata) use venom to subdue females during copulation.
doi.org/10.1016/j.cu...
CurrBiol
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Redirecting
https://doi.org/10.1016/j.cub.2025.01.027
9 months ago
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むしのみち
Journal of Animal Ecology
9 months ago
A Research Highlight by @risely_a, relating to a previously published paper (
buff.ly/pPIrOqk
), explores how feather mites selectively feed on specific bacteria and fungi on feathers with potential benefits to hosts 🦠 Read it here:
buff.ly/UAePt80
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https://buff.ly/pPIrOqk
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むしのみち
Kensuke Nakata
9 months ago
編集に携わっていた(Amazonでは+1その他扱いされてますが)、生態学の一般向け教科書が出版の運びとなりまして、Amazonで予約受付が始まっています。 私は編集に加えて一章執筆もしております。 このご時世、生態学の基礎は社会人の必須の教養だということで、皆様ぜひお手に取ってくださいませ。
https://www.amazon.co.jp/dp/4807920677/
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未来を生きるすべての人の 教養の生態学
Amazonで日本生態学会, 畑田 彩, 佐賀 達矢, 丑丸 敦史, 中田 兼介の未来を生きるすべての人の 教養の生態学。アマゾンならポイント還元本が多数。日本生態学会, 畑田 彩, 佐賀 達矢, 丑丸 敦史, 中田 兼介作品ほか、お急ぎ便対象商品は当日お届けも可能。また未来を生きるすべての人の 教養の生態学もアマゾン配送商品なら通常配送無料。
https://www.amazon.co.jp/dp/4807920677/
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Phoresy and interactions between Scotocryptus beetles and stingless bees
doi.org/10.1016/j.fo...
FoodWebs
9 months ago
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むしのみち
Trends in Ecology & Evolution
9 months ago
Online now: Understanding biological invasions through the lens of environmental niches
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Understanding biological invasions through the lens of environmental niches
Understanding successful invasions across taxa and systems in a unified framework is a central goal of biological conservation. While the environmental niche is a promising concept to improve our understanding of biological invasions, existing studies…
http://dlvr.it/TJ8hVd
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むしのみち
Oikos
10 months ago
Idiosyncrasy of feather mite intensity and prevalence across passerine bird species: a comparative study
https://doi.org/10.1111/oik.10629
#Akaike
#Astigmata
#DataImputation
#FeatherMites
#MantelTest
#PhylogeneticSignal
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Tatsuya Amano
10 months ago
Such an honour to be featured in
@nature.com
's Changemakers series, about why I decided to tackle
#languagebarriers
, what I want to change etc.
www.nature.com/articles/d41...
A big thanks to Mariana Lenharo for covering our project so many times.
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Breaking language barriers: ‘Not being fluent in English is often viewed as being an inferior scientist’
Biologist Tatsuya Amano works to make science a fairer place for non-fluent speakers.
https://www.nature.com/articles/d41586-025-00157-5
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うみねこ博物堂
10 months ago
シカツノエンマコガネ。これもすごいツノの持ち主。上野に出します。
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パンテオン
10 months ago
神戸大学 火入れだけでも草原性絶滅危惧植物種の多様性は効果的に維持できる!
www.kobe-u.ac.jp/ja/news/arti...
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火入れだけでも草原性絶滅危惧植物種の多様性は効果的に維持できる! | 神戸大学ニュースサイト
富士山麓の新しい年代に形成された溶岩流上においては、火入れによって非常に多くの草原性の絶滅危惧植物種が生育できていることを明らかにしました。
https://www.kobe-u.ac.jp/ja/news/article/20250131-66416/
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むしのみち
Kensuke Nakata
10 months ago
ギンメッキゴミグモの交尾器破壊関連の論文が公開になりました! ギンメッキのメスのほとんどは最初のオスに交尾器を破壊されるので、生涯一度しか交尾できないのですが、実験的に一回以上交尾させたメスは普通のメスよりたくさん卵を産むことがわかりました。 つまりメスは交尾器を破壊されるだけでなく、子の数が減るというコストも被っている、という話です。 交尾器破壊の背景に性的対立があることを示したわけで、なぜメスは交尾器破壊を受け入れるのかという謎に対して、コストがないからだ、という答えが成立しないということですね。
royalsocietypublishing.org/doi/10.1098/...
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Sexual conflict underlying external female genital mutilation in spiders: assessing whether females benefit from multiple matings | Proceedings of the Royal Society B: Biological Sciences
External female genital mutilation (EFGM) is a type of traumatic mating in which males damage female genitalia, resulting in the loss of female re-mating ability. This study examined whether sexual conflict underlies EFGM by examining the possible female ...
https://royalsocietypublishing.org/doi/10.1098/rspb.2024.2722
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むしのみち
Ryusuke Niwa
10 months ago
I am thrilled that our paper, which is packed with our 10 years of data on the venom proteins of the parasitoid wasp Asobara japonica, has just been published! Parasitoid wasp venoms degrade Drosophila imaginal discs for successful parasitism | Science Advances
www.science.org/doi/10.1126/...
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Parasitoid wasp venoms degrade Drosophila imaginal discs for successful parasitism
Two parasitoid wasp venom proteins induce imaginal disc degradation of its host fly Drosophila larva, ensuring parasitism success.
https://www.science.org/doi/10.1126/sciadv.adq8771
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むしのみち
BABOON_SAI
10 months ago
【メモ】一時的河川において、水生の上位捕食者(コオイムシの1種)は陸上の獲物を好む。生態系間のつながり(河川と陸地)や系外流入 Allochthonous input の話は好きなので興味深いです。 Amin M. al-Jamal et al. 2025 Aquatic top predator prefers terrestrial prey in an intermittent stream. Ecology
esajournals.onlinelibrary.wiley.com/doi/10.1002/...
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Aquatic top predator prefers terrestrial prey in an intermittent stream
Click on the article title to read more.
https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecy.4518
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むしのみち
Ecological Research
10 months ago
日本語タイトル「録音モニタリングによる森林性鳥類の分布および保全上重要な地域の評価」
add a skeleton here at some point
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The Editors' Choice article in the new Feb 2025 issue of Ecological Entomology presents research suggesting that nocturnal suspended resting of caterpillars plays a crucial role in avoiding nocturnal predators.
doi.org/10.1111/een....
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Suspended resting of caterpillars as an anti‐predator strategy
We found that Pogonopygia nigralbata larvae rest on the leaves of I. anisatum during the day but hang by a thread at night. Some predators, such as praying mantises, centipedes and tree frogs, were ...
http://doi.org/10.1111/een.13374
10 months ago
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