Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae)
Body condition is an important measure to estimate the energy reserve of an organism. Scientists frequently use body condition indices (BCIs) with morphometric measures but direct measurements, such as blood glucose, seem to be more reliable. We observed oscillations in the body condition and glucos...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zoologia
2019-05-01
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| Series: | Zoologia (Curitiba) |
| Online Access: | https://zoologia.pensoft.net/article/28027/download/pdf/ |
| _version_ | 1797969489683283968 |
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| author | Luane Maria Melo Azeredo Monique Silva Ximenes Kleytone Alves Pereira Maria Paula Aguiar Fracasso Luiz Carlos Serramo Lopez |
| author_facet | Luane Maria Melo Azeredo Monique Silva Ximenes Kleytone Alves Pereira Maria Paula Aguiar Fracasso Luiz Carlos Serramo Lopez |
| author_sort | Luane Maria Melo Azeredo |
| collection | DOAJ |
| description | Body condition is an important measure to estimate the energy reserve of an organism. Scientists frequently use body condition indices (BCIs) with morphometric measures but direct measurements, such as blood glucose, seem to be more reliable. We observed oscillations in the body condition and glucose indexes of individuals of Artibeus planirostris (Spix, 1823) during 13 nights in the field. We assume that if glucose levels are proportional to feeding state and body condition is a measure of energy reserve, blood glucose and BCI should be positively correlated and both are expected to increase during the night as the bats leave their diurnal roost to feed. To test this, we examined the relationship between blood glucose levels, BCI and reproductive phase of free flying male bats (n = 70) for 12 hours after sunset for 13 nights. Bats were captured in Reserva Biológica de Guaribas (Paraíba, Brazil) using mist nets. Blood glucose was analyzed with a portable glucometer. Supporting our assumptions, the number of hours after sunset and BCI presented significant positive correlations with glucose levels in A. planirostris. Reproductive phase did not present a significant correlation with any other variables. As we predicted, glucose level can be used as proxy for morphometric BCI and it can be measured with a simple portable glucometer. The increase both in glucose and BCI around the night can be explained by the efficient assimilation of nutrients present in fruits ingested by bats and the quick metabolism that increases the levels of glucose (an other nutrients) in blood, increasing the body mass. |
| first_indexed | 2024-04-11T03:01:57Z |
| format | Article |
| id | doaj.art-94ceb1cca31d4402a94cf371cc33fda2 |
| institution | Directory Open Access Journal |
| issn | 1984-4689 |
| language | English |
| last_indexed | 2024-04-11T03:01:57Z |
| publishDate | 2019-05-01 |
| publisher | Sociedade Brasileira de Zoologia |
| record_format | Article |
| series | Zoologia (Curitiba) |
| spelling | doaj.art-94ceb1cca31d4402a94cf371cc33fda22023-01-02T13:59:35ZengSociedade Brasileira de ZoologiaZoologia (Curitiba)1984-46892019-05-01361810.3897/zoologia.36.e2802728027Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae)Luane Maria Melo Azeredo0Monique Silva Ximenes1Kleytone Alves Pereira2Maria Paula Aguiar Fracasso3Luiz Carlos Serramo Lopez4Universidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal do Rio Grande do NorteCentro Universitário de João PessoaUniversidade Federal da ParaíbaBody condition is an important measure to estimate the energy reserve of an organism. Scientists frequently use body condition indices (BCIs) with morphometric measures but direct measurements, such as blood glucose, seem to be more reliable. We observed oscillations in the body condition and glucose indexes of individuals of Artibeus planirostris (Spix, 1823) during 13 nights in the field. We assume that if glucose levels are proportional to feeding state and body condition is a measure of energy reserve, blood glucose and BCI should be positively correlated and both are expected to increase during the night as the bats leave their diurnal roost to feed. To test this, we examined the relationship between blood glucose levels, BCI and reproductive phase of free flying male bats (n = 70) for 12 hours after sunset for 13 nights. Bats were captured in Reserva Biológica de Guaribas (Paraíba, Brazil) using mist nets. Blood glucose was analyzed with a portable glucometer. Supporting our assumptions, the number of hours after sunset and BCI presented significant positive correlations with glucose levels in A. planirostris. Reproductive phase did not present a significant correlation with any other variables. As we predicted, glucose level can be used as proxy for morphometric BCI and it can be measured with a simple portable glucometer. The increase both in glucose and BCI around the night can be explained by the efficient assimilation of nutrients present in fruits ingested by bats and the quick metabolism that increases the levels of glucose (an other nutrients) in blood, increasing the body mass.https://zoologia.pensoft.net/article/28027/download/pdf/ |
| spellingShingle | Luane Maria Melo Azeredo Monique Silva Ximenes Kleytone Alves Pereira Maria Paula Aguiar Fracasso Luiz Carlos Serramo Lopez Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) Zoologia (Curitiba) |
| title | Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) |
| title_full | Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) |
| title_fullStr | Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) |
| title_full_unstemmed | Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) |
| title_short | Body mass index and glucose variations during the night in free-ranging Artibeus planirostris (Chiroptera: Phyllostomidae) |
| title_sort | body mass index and glucose variations during the night in free ranging artibeus planirostris chiroptera phyllostomidae |
| url | https://zoologia.pensoft.net/article/28027/download/pdf/ |
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