「Polistes rothneyi」に関連した動画の一覧

	polistes rothneyi  polistes rothneyi 2006年10月11日再生回数 641
	Single Queen of Paper Wasp Making Two Nests キアシナガバチ創設女王の二巣並行営巣  As posted in the previous episode (check out the video response), a founding queen of yellow paper wasp (Polistes rothneyi, family Vespidae) on the nest S9 had been painted in sky-blue. Three days later, the marked foundress was found sitting on the smaller nest S10 (5 cells). Several hours later, I saw her working on the neighbouring nest S9 (9 cells). I used a small hand mirror to confirm the sky-blue marks on her back. The two nests were 30 cm apart under the eaves and both contained some eggs. No other paper wasps (which were unmarked) had been spotted under the eaves in those days. Thus I could get a convincing evidence that the two embryo nests were made by one and the same queen. Early-May 2010 in Japan. This footage is the Yellow Paper Wasp Diaries - Season 3, Episode 3. It's quite unusual for a solitary foundress of Japanese Polistes paper wasps to maintain two nests simultaneously. But this is the second case I've ever encountered here. For more about the first case in 2008, view also www.youtube.com . 日本語による詳細はブログをご覧ください。 sigma-nature-vlog.blogspot.com 2011年03月06日再生回数 2158
	Parasitic Moth Emerged from Paper Wasp's Nest コアシナガバチ巣の寄生蛾  I collected a fully-grown nest of paper wasp (Polistes snelleni, family Vespidae) after the all reproductive members (males and new queens) had long gone on late-November, 2010. I had monitored the development of this colony since early-August (check out the video response). The unnatural pink dots all over the nest comb were marked when I counted the number of cells (= 141). The nest had grown in a quite irregular shape due to the surrounding obstacles and the confined space under the eaves. After inspection, the nest specimen was put into a showcase (without a mothball!), which was sealed and then kept at room temperature. Three months later, an adult micromoth (Anatrachyntis sp., family Cosmopterigidae) emerged from the host nest unseasonably. It was totally unexpected for me because the host nest had shown no signs of infestation. The moth was supposed to overwinter in the pupal form hidden in the vacant host nest. The compound eyes of a cosmopterigid live specimen are usually bright red. Filmed on late-Feburary 2011 in Japan. picasaweb.google.com This tiny parasitic moth looks like the same species as the ones obtained from other host nests of Polistes rothneyi (visit www.youtube.com ). Music (audioswapped) : "4 Seasons Winter Largo" by Apollo Chamber Ensemble 日本語による詳細記事はブログをご覧ください。 sigma-nature-vlog.blogspot.com 2011年02月27日再生回数 1440
	Parasitic Moth Larva Fallen from Paper Wasp Nest キアシナガバチ巣に寄生した蛾の幼虫  The nest-S9 of yellow paper wasp (Polistes rothneyi, family Vespidae) was collapsed and abandoned due to the heavy infestation of parasitic moths. The collected nest specimen had been put into quarantine since late-September 2010 and reared at room temperature. Five months later, a caterpillar was found crawling at a loss on the floor. It might be a late-instar larva of parasitic moth (Anatrachyntis sp., family Cosmopterigidae). (To see the early-instar larvae, check out my previous video clip; www.youtube.com .) Somehow, the caterpillar couldn't get back to the host nest by itself. Even after being put back to the nest by tweezers, it couldn't stay there and soon fell to the floor again. As you can see in this footage, the infested host nest was falling apart into pieces and covered with cobwebs spun by the parasitic moth caterpillars. There was also a dead wasp stuck in a cell. It was 16 degrees Celsius when filmed on late-February 2011 in Japan. This footage is a new episode of my longrun video series "Yellow Paper Wasp Diaries Season 3". Music (audioswapped) : "Troy" by Random Trio / Cyrus 日本語による詳細記事はブログをご覧ください。 sigma-nature-vlog.blogspot.com 2011年02月28日再生回数 1110
	Why My Paper Wasp Queen Starts Unusual Multiple Nests? キアシナガバチ二巣並行営巣の謎  The marked foundress of yellow paper wasp (Polistes rothneyi, family Vespidae) was guarding her embryo nest-S9 (22 cells). You can see her satellite nest-S10 (11 cells), too. The two nests were 30 cm apart under the eaves. Primordial (or incomplete) petioles were also found in the adjacent sectors S11 and S12. But the queen seemed to have quit further construction there. It is noteworthy that all of the four nests were located on the same position (coordinates) inside each of the consecutive rectangular sectors. In other words, the nests S9-12 were equally spaced in a straight line. The precise alignment cannot be coincidence. If other queen(s) had taken part in the independent foundings followed by violent usurpation, the nest locations would have been more random. An embryo nest is quite vulnerable to natural enemies and parasitism. It is hard for a single queen to guard her nest during the solitary (pre-emergence) stage. Just as you shouldn't invest all your money into one stock, it may be wise (beneficial) for a foundress to have a satellite nest(s) to ensure the success of her dynasty (colony). However, I'm afraid that this plausible risk-hedge hypothesis could be just an afterthought. The last possibility (and my favourite hypothesis) is that the single queen wasp made multiple nests simultaneously as a result of her misconception of the nesting site. Late-May 2010 in Japan. This footage is a new episode of my longrun video series "Yellow Paper Wasp Diaries Season 3 ... 2011年03月11日再生回数 1064
	キアシナガバチの巣 Paper Wasp Colony  Hive of the yellow paper wasp (Polistes rothneyi) under the eaves in Japan. Soundtrack (audioswapped): Musicshake - Piano Jazz 写真を見る限り構成員は♀ワーカーのみで♂は羽化していないようだ。この後、スズメバチに襲撃されたらしく、巣は全滅してしまいました。 2006年12月06日再生回数 8824
	Paper Wasp Queen Securing the Nest Pedicel キアシナガバチ創設女王＠巣柄補強  The founding queen of yellow paper wasp (Polistes rothneyi, family Vespidae) reinforcing the single suspensorium of her satellite nest-S10. She had been painted with light blue. Mid-August 2010 in Japan. This footage is a new episode of my longrun video series "Yellow Paper Wasp Diaries Season 3". 日本語の記事はブログをご覧ください。 sigma-nature-vlog.blogspot.com 2011年01月19日再生回数 261
	Yellow Paper Wasp Diary Season2 Ep01キアシナガバチ創設女王と初期巣  Founding queen of the yellow paper wasp (Polistes rothneyi, family Vespidae) on her nest (9 cells with eggs). So far, no other nests were made under the eaves this year. Early-May 2009 in Japan. 昨シーズン定点観察した同じ軒下に今年もキアシナガバチ女王が営巣していました。巣の上で休息、身繕いしていましたがカメラが近付くと警戒します。育房数9室で産卵済み。今年は無事に育つ様子を見届けたいものです。コロニーの成員を個体標識して定点観察してみるのが今年の目標。幼虫が孵化する前に女王を刺激するとすぐに巣を放棄して逃げてしまうそうなので、それまで静観。 2009年05月11日再生回数 401
	Yellow Paper Wasp Diary Season2 Ep02 Sweet Home キアシナガバチ初期巣の蜜滴  Founding queen of the yellow paper wasp (Polistes rothneyi, family Vespidae) guarding her nest (31 cells). Late-May 2009 in Japan. You can see droplets of honey stored in some cells. Soundtrack (audioswapped): "Honey" by Doveman 軒下で営巣しているキアシナガバチの定点観察記録。初期巣はだいぶ大きくなった（育房数31室）。ある程度巣を拡張したら幼虫が孵化するまで女王はほとんど外出しないでひたすら巣を守っている。巣の近くを天敵のアリが徘徊していますが、巣柄を中心に巣の表面に塗った蟻避け物質が効いているのか侵入・襲撃はありませんでした。でも油断できません。巣内には白い卵以外に透明の粒が見えます。これは女王が花から集めてきた蜜滴を育房内に貯めたものです。雨天時など外出できない日の女王の非常食および一齢幼虫に与える食料としても用いられる。（参考：『アシナガバチ観察事典』偕成社 p16） ※この日の観察でも在巣の時間が長いが、一度女王の帰巣を目撃。たまに外出はしているようだ。 2009年05月26日再生回数 981
	Yellow Paper Wasp Diary Season2 Ep03 Antennal Drumming キアシナガバチの母子間伝達♪  Founding queen of the yellow paper wasp (Polistes rothneyi, family Vespidae) on the nest (35 cells) feeding her larvae a flesh pellet. After the mealtime, the foundress drank nutrient-rich larval saliva (trophallaxis). You can hear faint drumming sounds the queen made by tapping with her antennae on the cells as she inspected the cells. Headphones may be needed. Early-June 2009 in Japan. キアシナガバチの巣の定点観察記録。育房数35室。蜜滴、ピンク色の幼虫を確認。狩りから帰った女王は幼虫に肉団子を少しずつ給餌して回る。餌が無くなると今度は女王が幼虫から栄養豊富な唾液の吐き戻しを受ける（栄養交換）。このとき女王が触角で育房の壁をリズミカルに叩く音がかすかに聞こえた（ヘッドフォン推奨）。米国産アシナガバチ（Polistes fuscatus）での研究によると、これは三齢以降の幼虫に対してのみ女王が示す行動で、栄養交換に関わる解発信号（幼虫の唾液分泌を抑制）である可能性が報告されている。 昨年同じ場所で営巣したキアシナガバチ女王で初めて観察した行動が再現された。 2009年06月05日再生回数 609