Efecto de los claros de bosque en la composición de murciélagos insectívoros en la Reserva Biológica la Tirimbina, Sarapiquí, Costa Rica

Alpízar, Priscilla; Víquez-R, Luis; Hong, Fernanda; Rodríguez‐Herrera, Bernal; González‐Maya, José F.

doi:10.18636/bioneotropical.v2i2.84

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Rarefaction also indicated a much higher dominance of single species at the forest sites in Tirimbina (Table 2). We argue that this might be due to the logistic limitation of our sampling sites, as previous data shows that Tirimbina Biological Reserve has higher species richness of aerial insectivore bats than the one found in this study [52].…”

Section: Discussionmentioning

confidence: 67%

The effect of local land use on aerial insectivorous bats (Chiroptera) within the two dominating crop types in the Northern-Caribbean lowlands of Costa Rica

2019

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Land transformation into agricultural areas and the intensification of management practices represent two of the most devastating threats to biodiversity worldwide. Within this study, we investigated the effect of intensively managed agroecosystems on bat activity and species composition within two focal areas differing in landscape structure. We sampled bats via acoustic monitoring and insects with flight interception traps in banana and pineapple monoculture plantations and two nearby protected forested areas within the area of Sarapiquí, Costa Rica. Our results revealed that general occurrence and feeding activity of bats was higher above plantations compared to forested areas. We also recorded higher species richness at recording sites in plantations. This trend was especially strong within a fragmented landscape, with only four species recorded in forests, but 12 above pineapple plantations. Several bat species, however, occurred only once or twice above plantations, and forest specialist species such as Centronycteris centralis, Myotis riparius and Pteronotus mesoamericanus were only recorded at forest sites. Our results indicated, that mostly mobile open space and edge foraging bat species can use plantations as potential foraging habitat and might even take advantage of temporal insect outbreaks. However, forests are vital refugia for several species, including slower flying forest specialists, and thus a prerequisite to safeguard bat diversity within agricultural dominated landscapes.

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Section: Discussionmentioning

confidence: 67%

The effect of local land use on aerial insectivorous bats (Chiroptera) within the two dominating crop types in the Northern-Caribbean lowlands of Costa Rica

2019

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“…Based on the methods of Alpízar et al (2012) and Arias-Aguilar et al (2015), the three devices were programmed to record each night from 17:30 to 23:00, in recording periods of 10 min with rest intervals of 20 min, for a total of 2.16 h of recording in each location (clearing, border and forest) per night. The recording parameters focused on the characteristics of the aerial insectivorous guild of Neotropical bats (families Emballonuridae, Mormoopidae, Vespertilionidae and Molossidae; Jones & Holderied 2007), with a range of 12-192 kHz and with a recording duration of 1.5-200 min.…”

Section: Data Collectionmentioning

confidence: 99%

Changes in a Neotropical insectivorous bat community associated with artificial clearing of the forest in a geothermal project

Sandoval-Castro,

Jiménez-Céspedes,

Villalobos-Chaves

et al. 2023

Envir. Conserv.

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SummaryThe energy needs of the human population inevitably affect natural environments, but the effects on wildlife of human modifications of habitat specifically for geothermal projects are scarcely known. Through acoustic monitoring, we quantified at Proyecto Geotérmico Las Pailas II, Guanacaste, Costa Rica, the impact of forest openings on the diversity and community composition of aerial insectivorous bats. Our data revealed that artificial clearing causes a border effect, an environment where the diversity of species and activity levels of insectivorous bats increase with respect to other habitats analysed. We discuss that, due to the combination of environmental properties and resource availability variables of the border habitats, in addition to the acoustic abilities of the bat species detected, borders represent transitional spaces where species adapted to uncluttered and background-cluttered spaces can easily commute and forage. The artificial clearings created by the geothermal project had a positive effect on aerial insectivorous bat species; however, this pattern cannot be assumed for other organisms within the area. Therefore, we highlight the importance of quantifying the influence of energy-extracting projects on biodiversity metrics and the use of this information to make informed decisions regarding managing and conserving natural resources.

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Species diversity and activity of insectivorous bats in three habitats in La Virgen de Sarapiquí, Costa Ric

Cormier

2014

RBT

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Pineapple farms make up 45 000ha of Costa Rican landscape and are the second most exported crop. This is economically beneficial for the Costa Ricans, but greatly affects the natural flora and fauna because it is such a low growing crop. This study examined the differences in insectivorous bat species diversity and activity in the habitat gradient between the forest in Tirimbina Biological Reserve in La Virgen de Sarapiquí, Heredia, Costa Rica and the nearby pineapple farm called Finca Corsicana. Over a four week period in March and April 2013, ultrasonic recorders were placed at different sites to pick up the bats' calls. Then the recordings were analyzed to identify the species. There were four families present and 19 different species. There was a significant decrease in the number of bat passes (the number of times a bat passes the recorder) in the pineapple farm ( =22.6), in comparison to the border ( =39.9), and the forest ( =44.2) (p=0.0028). Agricultural environments affected and lowered bat presence. Also, a greater mean number of bats recorded between 1900-1930hrs compared to 1730-1800hrs, coincided with the setting of the sun and beginning of bat activity. More research is need throughout the night and the year to establish clearer patterns of bat use and activity in different habitats. Rev. Biol. Trop. 62 (3): 939-946. Epub 2014 September 01.

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Efecto de los claros de bosque en la composición de murciélagos insectívoros en la Reserva Biológica la Tirimbina, Sarapiquí, Costa Rica

Cited by 3 publications

References 4 publications

The effect of local land use on aerial insectivorous bats (Chiroptera) within the two dominating crop types in the Northern-Caribbean lowlands of Costa Rica

The effect of local land use on aerial insectivorous bats (Chiroptera) within the two dominating crop types in the Northern-Caribbean lowlands of Costa Rica

Changes in a Neotropical insectivorous bat community associated with artificial clearing of the forest in a geothermal project

Species diversity and activity of insectivorous bats in three habitats in La Virgen de Sarapiquí, Costa Ric

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