The Influence of Sex and Reproductive Status on Foraging Behavior and Seed Dispersal by Uroderma convexum (Chiroptera: Phyllostomidae)

Villalobos‐Chaves, David; Bonaccorso, Frank J.; Rodríguez‐Herrera, Bernal; Cordero-Schmidt, Eugenia; Arias-Aguilar, Adriana; Todd, Christopher M.

doi:10.1007/978-3-319-38953-0_14

Cited by 5 publications

(4 citation statements)

References 33 publications

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“…Strong selective pressures may be acting on both sides of the mutualistic interaction between Neotropical bats and some large-seeded plant species. Evidence collected here and in other similar studies (Melo et al 2009, Villalobos-Chaves et al 2016b highlights the case of S. radlkoferi as a potential bat-dispersed tree. From the plant perspective, bats are important as they shape density and distant effects of the seed rain of this species (Melo et al 2009, Villalobos-Chaves et al 2016b, but in order to selectively feed on this resource, plants also have to offer quality resources to attract abundant and likely effective dispersers like bats.…”

Section: Discussionsupporting

confidence: 75%

“…Evidence collected here and in other similar studies (Melo et al 2009, Villalobos-Chaves et al 2016b highlights the case of S. radlkoferi as a potential bat-dispersed tree. From the plant perspective, bats are important as they shape density and distant effects of the seed rain of this species (Melo et al 2009, Villalobos-Chaves et al 2016b, but in order to selectively feed on this resource, plants also have to offer quality resources to attract abundant and likely effective dispersers like bats. From the animal perspective, S. radlkoferi trees may offer bats a qualitative resource, especially because A. phaeotis individuals have to fly with approximately 83.6% of their body mass each time that they carry one S. radlkoferi fruit (Villalobos-Chaves 2016).…”

Section: Discussionsupporting

confidence: 75%

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Dispersal patterns of large-seeded plants and the foraging behaviour of a frugivorous bat

2020

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Mutualistic interactions are biologically important, diverse and poorly understood. Comprehending these interactions and the effectiveness of the mutualistic partners has been the central focus of ecological and evolutionary studies, as this task requires disentangling the pieces of mutualism under study. Here, we tested the hypothesis that feeding activity of Artibeus phaeotis influences density, diversity and distance effects of the seed rain of large-seeded plant species in a Neotropical dry forest of Costa Rica. We predicted that bats’ activity increases density and diversity metrics on dispersing sites and that bats behave as short-distance dispersers. Our data revealed that, by dispersing hundreds of seeds within their small foraging areas and mostly close to fruiting trees, the feeding activity of A. phaeotis increases the density and richness of seeds underneath night feeding roosts. The functional role of A. phaeotis as disperser may vary among plant species, as we also detected that some seeds are more dispersed than others. Further inquiries to elucidate mutualistic interactions between frugivorous bats and large-seeded plant species should focus on understanding demographic and fitness outcomes, as strong selective pressures may be shaping morphological and behavioural traits of both plants and animals, ultimately influencing the survival of each partner.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionsupporting

confidence: 75%

Dispersal patterns of large-seeded plants and the foraging behaviour of a frugivorous bat

2020

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“…Other hypotheses have been proposed to explain tent‐switching in bats, such as reducing parasite loads, promoting social relationships in the local population, and using tents close to fruiting trees as feeding roosts (Brooke , Chaverri & Kunz , Villalobos‐Chaves et al . ). We observed bats feeding in tents that were under construction, but did not observe seed deposits under tents, so this is unlikely the main function of tents in our area.…”

Section: Discussionmentioning

confidence: 97%

The dynamics of tent‐roosts in the palm Sabal mauritiiformis and their use by bats in a montane dry forest

et al. 2018

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Tent‐making bats modify leaves to build refuges. Leaf modification involves energetic and defense costs that should be balanced by the benefits of tent‐roosting. The alteration of the leaf's vascular system reduces the tent's life expectancy, so to obtain a benefit, bats are expected to use tents regularly as long as they remain functional and not modify more leaves than necessary. Over 2 yr, we documented the dynamics of tent construction and use by Uroderma convexum and other bat species in the palm Sabal mauritiiformis in a Colombian transitional dry forest. We also assessed tent condition and compared it to nonmodified leaves of approximately the same age in focal palms. Probability of tent use by U. convexum varied between 57 percent during a reproductive period and 4 percent outside of this period. Bats cut the main vein of folioles, partially affecting water transport in the leaf. However, there were no differences between tents and nonmodified leaves in deterioration scores or deterioration rates over 1 yr. During 2 yr, 48 tents were lost for different causes, but this loss was balanced by the construction of 51 new tents. Thus, bats maintained an excess of usable tents. Palm leaves are long‐lived and seem preadapted to sustain damage and remain viable, particularly in species growing in dry environments. We present several hypotheses to explain the advantage of maintaining a tent surplus.

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“…As a basis for further analyses, we extracted data for forest cover and forest cover loss using ArcMap (ESRI 2011) and maps based on Landsat images provided by the University of Maryland (Hansen et al 2013, http://eartheng inepartners.appspot.com/science-2013-global-forest). We used a 1 km radius around each capture site (resulting in 314 ha), based on recent telemetry studies estimating the home range of U. bilobatum at around 23 ha (Villalobos-Chaves et al 2016). Forest cover was calculated based on a map of tree canopy cover density (0-100%) from 2000, setting the threshold at 85% density, which resulted in 99% of the tree canopy cover density values for each of the protected study sites (Bohio, Gigante, and Peña Blanca).…”

Section: Statistical Analysesmentioning

confidence: 99%

Host Biology and Anthropogenic Factors Affect Hepadnavirus Infection in a Neotropical Bat

et al. 2018

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The tent-making bat hepatitis B virus (TBHBV) is a hepadnavirus closely related to human hepatitis B virus. The ecology of TBHBV is unclear. We show that it is widespread and highly diversified in Peters' tentmaking bats (Uroderma bilobatum) within Panama, while local prevalence varied significantly between sample sites, ranging from 0 to 14.3%. Females showed significantly higher prevalence than males, and pregnant females were more often acutely infected than non-reproductive ones. The distribution of TBHBV in bats was significantly affected by forest cover, with higher infection rates in areas with lower forest cover. Our data indicate that loss of natural habitat may lead to positive feedback on the biotic factors driving infection possibility. These results underline the necessity of multidisciplinary studies for a better understanding of mechanisms in pathogen-host relationships and for predictions in disease ecology.

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The Influence of Sex and Reproductive Status on Foraging Behavior and Seed Dispersal by Uroderma convexum (Chiroptera: Phyllostomidae)

Cited by 5 publications

References 33 publications

Dispersal patterns of large-seeded plants and the foraging behaviour of a frugivorous bat

Dispersal patterns of large-seeded plants and the foraging behaviour of a frugivorous bat

The dynamics of tent‐roosts in the palm Sabal mauritiiformis and their use by bats in a montane dry forest

Host Biology and Anthropogenic Factors Affect Hepadnavirus Infection in a Neotropical Bat

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