Common vampire bat contact calls attract past food-sharing partners

Temporally precise vocal exchanges, termed “antiphonal calling”, might allow pair or group members to maintain social contact with greater efficiency than when calling independently. The white-winged vampire bat ( Diaemus youngi (Jentink, 1893)) is a group-living species that produces social calls in antiphonal exchanges. Because white-winged vampire bats can use social calls to discriminate conspecifics, we suspect that one function of these vocal exchanges is to allow group members to know who is where. Here, we tested the prediction that antiphonal calling by groups of white-winged vampire bats increases when the spatial positions of conspecifics change. We recorded social calls from groups of four individually caged bats in total darkness, with each bat located in the corner of a 4 m × 4 m room. During test trials, we shifted the spatial positions of caged bats to new positions. During control trials, caged bats were displaced an equal distance but were returned to their original positions. We found that both the number of social calls and the proportion of antiphonal exchanges were greater during test trials than during control trials. These results suggest that white-winged vampire bats use antiphonal exchanges of social calls to monitor the spatial positions of conspecifics.

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Vampire Bat Food Sharing

Encyclopedia of Evolutionary Psychological Science ◽

10.1007/978-3-319-19650-3_305459 ◽

2021 ◽

pp. 8341-8341

Keyword(s):

Food Sharing ◽

Vampire Bat

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Food sharing behavior in the hairy-legged vampire bat Diphylla ecaudata

Acta Chiropterologica ◽

10.3161/1733-5329(2007)9[314:fsbith]2.0.co;2 ◽

2007 ◽

Vol 9 (1) ◽

pp. 314-319 ◽

Cited By ~ 5

Author(s):

Cynthia Elizalde-Arellano ◽

Juan Carlos López-Vidal ◽

Joaquín Arroyo-Cabrales ◽

Rodrigo A. Medellín ◽

John W. Laundré

Keyword(s):

Food Sharing ◽

Sharing Behavior ◽

Vampire Bat

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Intranasal oxytocin increases social grooming and food sharing in the common vampire bat Desmodus rotundus

Hormones and Behavior ◽

10.1016/j.yhbeh.2015.10.006 ◽

2015 ◽

Vol 75 ◽

pp. 150-153 ◽

Cited By ~ 35

Author(s):

Gerald G. Carter ◽

Gerald S. Wilkinson

Keyword(s):

Food Sharing ◽

Social Grooming ◽

Desmodus Rotundus ◽

The Common ◽

Vampire Bat

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Food sharing patterns in three species of callitrichid monkeys (Callithrix jacchus, Leontopithecus chrysomelas, Saguinus midas): Individual and species differences.

Journal of Comparative Psychology ◽

10.1037/com0000169 ◽

2019 ◽

Vol 133 (4) ◽

pp. 474-487 ◽

Cited By ~ 1

Author(s):

Eloísa M. Guerreiro Martins ◽

Antonio C. de A. Moura ◽

Christa Finkenwirth ◽

Michael Griesser ◽

Judith M. Burkart

Keyword(s):

Species Differences ◽

Callithrix Jacchus ◽

Food Sharing ◽

Leontopithecus Chrysomelas ◽

Sharing Patterns

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Vampire Bat Salivary Plasminogen Activator Evokes Minimal Bleeding Relative to Tissue-Type Plasminogen Activator as Assessed by a Rabbit Cuticle Bleeding Time Model

Thrombosis and Haemostasis ◽

10.1055/s-0038-1653800 ◽

1995 ◽

Vol 73 (03) ◽

pp. 478-483 ◽

Cited By ~ 7

Author(s):

Michael J Mellott ◽

Denise R Ramjit ◽

Inez I Stabilito ◽

Timothy R Hare ◽

Edith T Senderak ◽

...

Keyword(s):

Factor Viii ◽

Plasminogen Activator ◽

Intravenous Administration ◽

Bleeding Time ◽

Bleeding Risk ◽

Tissue Type ◽

Tissue Type Plasminogen Activator ◽

Type Plasminogen Activator ◽

Plasma Factor ◽

Vampire Bat

SummaryCuticle bleeding time (CBT) measurements in anesthetized rabbits were performed to assess the potential bleeding risks which may accompany the administration of tissue-type plasminogen activator (tPA) or vampire bat salivary plasminogen activator (BatPA). The dose of BatPA or tPA used in this study, 42 nmol/kg, was previously shown to be efficacious using a rabbit femoral artery thrombosis model (Gardell et al, Circulation 84:244, 1991). CBT was determined by severing the apex of the nail cuticle and monitoring the time to cessation of blood flow. CBT was minimally elevated (1.6-fold, p<NS) following bolus intravenous administration of BatPA; in contrast, bolus intravenous administration of tPA dramatically elevated CBT (6.2-fold, p<0.05). Rabbits treated with tPA, but not BatPA, displayed profound activation of systemic plasminogen and consequent degradation of Factor VIII and fibrinogen. Elevations in CBT after the administration of tPA were reversed by the replenishment of plasma Factor VIII activity to 40% of control, but were unaffected by complete replenishment of plasma fibrinogen. The results of this study suggest that the administration of BatPA, at a dose that promotes thrombolysis, may evoke a minimal bleeding risk, relative to an equi-efficacious dose of tPA. In addition, the tPA-provoked proteolytic consumption of Factor VIII may be a key contributor to the heightened bleeding risk.

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Vampire Bat Salivary Plasminogen Activator Promotes Robust Lysis of Plasma Clots in a Plasma Milieu Without Causing Fluid Phase Plasminogen Activation

Thrombosis and Haemostasis ◽

10.1055/s-0038-1656343 ◽

1992 ◽

Vol 68 (02) ◽

pp. 165-169 ◽

Cited By ~ 12

Author(s):

Timothy R Hare ◽

Stephen J Gardell

Keyword(s):

Plasminogen Activator ◽

Plasma Levels ◽

Fluid Phase ◽

Immunoblot Analysis ◽

Tissue Type ◽

Clot Lysis ◽

Plasma Clot ◽

Type Plasminogen Activator ◽

Iodine 125 ◽

Vampire Bat

SummaryVampire bat salivary plasminogen activator (BatPA), human tissue-type plasminogen activator (tPA) or streptokinase (SK) were incubated in human citrated plasma containing a plasma clot that was radiolabelled with iodine-125 fibrin(ogen). Complete clot dissolution by BatPA (30 nM) was associated with slight activation of “fluid phase” plasminogen; the plasma levels of functional fibrinogen and α2-antiplasmin decreased by only 8 and 19%, respectively. Addition of SK (3,600 IU/ml) to the clot-containing plasma caused complete clot lysis and massive activation of the “fluid phase” plasminogen, leading to >60 and 96% decreases of the functional levels of fibrinogen and α2-antiplasmin, respectively. Incubation of tPA (30 nM) in clot-containing plasma caused complete clot lysis as well as substantial activation of “fluid phase” plasminogen; the plasma levels of functional fibrinogen and α2-antiplasmin decreased by 45 and 79%, respectively. The profound degradation of fibrinogen in the SK and tPA but not BatPA-containing samples was confirmed by immunoblot analysis. Additional experiments showed that the presence of soluble clot lysate in plasma containing tPA enhanced the extent of fibrinogen degradation from 25% to >60%; the addition of soluble clot lysate to the plasma containing BatPA did not prompt further fibrinogen degradation. Finally, studies using exogenous α2-antiplasmin suggested that plasmin generated via tPA-mediated activation of “fluid phase” plasminogen does not play an important role in clot dissolution.

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