Evidences of Piscivory by Myotis capaccinii (Bonaparte, 1837) in Southern Iberian Peninsula

Aihartza, Joxerra; Goiti, Urtzi; Almenar, David; Garin, Iñazio

doi:10.3161/001.005.0204

Cited by 21 publications

(3 citation statements)

References 24 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The relative durations of buzz I and II may be adjusted according to the specific foraging task. In the trawling long-fingered bat (Myotis capaccinii (Bonaparte, 1837)), which preys upon both fish and insects (e.g., Biscardi et al 2007;Aihartza et al 2003), feeding buzzes broadcast while fishing show a longer buzz I and a shorter buzz II, in this way achieving a better discrimination ability while reducing sonar beam width because the prey are nonflying and may be incapable of last-instant evasive manoeuvres (Aizpurua et al 2014). Buzzes are also observed in HDC species, where the duration of the CF portion decreases and the bandwidth of the final FM sweep increases (Altringham 2011).…”

Section: Intraindividual Echolocation Plasticity In Response To Diffementioning

confidence: 99%

Bats are still not birds in the digital era: echolocation call variation and why it matters for bat species identification

2018

View full text Add to dashboard Cite

The recording and analysis of echolocation calls are fundamental methods used to study bat distribution, ecology, and behavior. However, the goal of identifying bats in flight from their echolocation calls is not always possible. Unlike bird songs, bat calls show large variation that often makes identification challenging. The problem has not been fully overcome by modern digital-based hardware and software for bat call recording and analysis. Besides providing fundamental insights into bat physiology, ecology, and behavior, a better understanding of call variation is therefore crucial to best recognize limits and perspectives of call classification. We provide a comprehensive overview of sources of interspecific and intraspecific echolocation call variations, illustrating its adaptive significance and highlighting gaps in knowledge. We remark that further research is needed to better comprehend call variation and control for it more effectively in sound analysis. Despite the state-of-art technology in this field, combining acoustic surveys with capture and roost search, as well as limiting identification to species with distinctive calls, still represent the safest way of conducting bat surveys.

show abstract

Section: Intraindividual Echolocation Plasticity In Response To Diffementioning

confidence: 99%

Bats are still not birds in the digital era: echolocation call variation and why it matters for bat species identification

2018

View full text Add to dashboard Cite

show abstract

“…Fenton, 1990;Gudger, 1943;Law and Urquhart, 2000;Ma et al, 2003;Whitaker and Findley, 1980). The long-fingered bat [Myotis capaccinii (Bonaparte 1837)] is the only European species known to fish, as despite being primarily insectivorous , fishing behaviour has been reported for three isolated colonies in the Mediterranean basin (Aihartza et al, 2003;Biscardi et al, 2007;Levin et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Fine-tuned echolocation and capture-flight ofMyotis capacciniiwhen facing different sized insects and fish prey

Aizpurua

Aihartza

Alberdi

et al. 2014

Journal of Experimental Biology

View full text Add to dashboard Cite

Formerly thought to be a strictly insectivorous trawling bat, recent studies have shown that Myotis capaccinii also preys on fish. To determine whether differences exist in bat flight behaviour, prey handling and echolocation characteristics when catching fish and insects of different size, we conducted a field experiment focused on the last stage of prey capture. We used synchronized video and ultrasound recordings to measure several flight and dip features as well as echolocation characteristics, focusing on terminal buzz phase I, characterized by a call rate exceeding 100 Hz, and buzz phase II, characterized by a drop in the fundamental well below 20 kHz and a repetition rate exceeding 150 Hz. When capturing insects, bats used both parts of the terminal phase to the same extent, and performed short and superficial drags on the water surface. In contrast, when preying on fish, buzz I was longer and buzz II shorter, and the bats made longer and deeper dips. These variations suggest that lengthening buzz I and shortening buzz II when fishing is beneficial, probably because buzz I gives better discrimination ability and the broader sonar beam provided by buzz II is useless when no evasive flight of the prey is expected. Additionally, bats continued emitting calls beyond the theoretical signal-overlap zone, suggesting that they might obtain information even when they have surpassed that threshold, at least initially. This study shows that M. capaccinii can regulate the temporal components of its feeding buzzes and modify prey capture technique according to the target.

show abstract

“…En todos los casos, el murciélago es el depredador y los peces las presas, como lo han mostrado diversos estudios (Bloedel 1955;Altenbach 1989;Brooke 1994;Aihartza et al 2003;Bordignon 2006;Bordignon y França 2014). Sin embargo, hasta ahora no se han registrado casos en que el pez deprede al murciélago.…”

Section: Introductionunclassified

Depredación de Noctilio albiventris (Chiroptera: Noctilionidae) por Pseudopimelodus schultzi (Siluriformes: Pseudopimelodidae) en la cuenca del río La Vieja, Colombia

Botero-Botero

Pérez‐Torres

Arcila-Marulanda

et al. 2015

Therya

View full text Add to dashboard Cite

Evidences of Piscivory by Myotis capaccinii (Bonaparte, 1837) in Southern Iberian Peninsula

Cited by 21 publications

References 24 publications

Bats are still not birds in the digital era: echolocation call variation and why it matters for bat species identification

Bats are still not birds in the digital era: echolocation call variation and why it matters for bat species identification

Fine-tuned echolocation and capture-flight ofMyotis capacciniiwhen facing different sized insects and fish prey

Depredación de Noctilio albiventris (Chiroptera: Noctilionidae) por Pseudopimelodus schultzi (Siluriformes: Pseudopimelodidae) en la cuenca del río La Vieja, Colombia

Contact Info

Product

Resources

About