Kidney Structure in Neotropical Bats

Studier, Eugene H.; Wisniewski, Steven J.; Feldman, Ada T.; Dapson, Richard W.; Boyd, Brian C.; Wilson, Don E.

doi:10.2307/1380357

Cited by 31 publications

(23 citation statements)

References 17 publications

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“…Although previous studies on bats did not measure the percentage of renal medulla, they did measure such indices as RMT (Studier et al, 1983b;Bhati and Srivastava, 1994), the ratio of inner cortex to medulla (IC/M) (Geluso, 1978;Happold and Happold, 1988), and the thickness of the cortex and medulla (Carpenter, 1969). These studies demonstrate that species feeding on relatively concentrated diets have more renal medulla than species feeding on dilute diets.…”

Section: Article In Pressmentioning

confidence: 89%

“…For example, renal morphology has been previously examined in 26 bat species from Central America and Central Africa (Studier et al, 1983b), in 28 species from Central Africa (Happold and Happold, 1988), and in 19 species from Mexico Schondube et al, 2001). However, these studies only examined morphological indices from mid-sagittal kidney sections.…”

Section: Discussionmentioning

confidence: 99%

“…Consequently, there appear to be correlations between ecological characteristics such as diet and habitat, and body mass, renal morphology and physiology. For example, the renal medulla contains structures that are responsible for concentrating urine and this area of the kidney is more developed in carnivorous than in herbivorous mammals (Studier et al, 1983b).…”

Section: Introductionmentioning

confidence: 99%

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Relationships between renal morphology and diet in 26 species of new world bats (suborder microchiroptera)

Casotti

Flores

Mancina

et al. 2006

Zoology

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Section: Article In Pressmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Relationships between renal morphology and diet in 26 species of new world bats (suborder microchiroptera)

Casotti

Flores

Mancina

et al. 2006

Zoology

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“…An inverse relationship between RMT and body weight has been shown for mammals of varying dietary habits and encompassing a wide range of body weights (Blake 1977;Lawler and Geluso 1986). However, Geluso (1978), Studier et al (1983) and Bassett (1986) found no allometric relationship for renal indices in insectivorous bats, but the range of body weight for the bats was small. In a review of this relationship for 165 mammals, Beuchat (1990) obtained the equation RMT=5.408W-0"0s, where W is body weight in kilograms and the 95% confidence interval of the slope is -0.126 to -0.090.…”

Section: Allometric Analyses Of Renal Indicesmentioning

confidence: 98%

Kidney Structure and Renal Indexes of Dasyurid Marsupials

Brooker¹,

Withers²

1994

Aust. J. Zool.

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Examination of kidney structure for 25 dasyurid marsupials showed that kidneys of species from arid habitats tend to have a relatively thicker medulla and higher renal indices than those of species from semi-arid, mesic and tropical areas. Arid-dwelling species such as Ningaui ridei and Pseudantechinus macdonnellensis had the highest renal indices while Antechinus swainsonii, collected from alpine environments, had the lowest renal index values. Renal indices were significantly correlated also with body weight, average daily maximum temperature and average annual rainfall of the habitat. The renal indices for xeric species differed significantly by discriminant analysis from the indices for other species. There was no obvious phylogenetic conservatism in renal indices; for example, renal indices varied almost as much within the genus Sminthopsis as between all of the other genera of Dasyuridae examined.

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“…The RMA was very low at 0.30 and the predicted maximum urinary concentration based on the equation of BrownWeld and Wunder (1976) was 1,469 mOsm kg ¡1 . Slaven and Richardson (1988) concluded that the kidneys of the honey possum are very similar in form to those of frugivorous bats (Studier et al 1983) with a large renal cortex in relation to the renal medulla and high rates of urine production.…”

Section: Kidney Functionmentioning

confidence: 99%

The physiology of the honey possum, Tarsipes rostratus, a small marsupial with a suite of highly specialised characters: a review

Bradshaw

2011

J Comp Physiol B

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Field and laboratory studies of the iconic nectarivorous and 'pollenivorous' honey possum, Tarsipes rostratus, are reviewed with the aim of identifying aspects of its physiology that are as yet poorly understood and needed to implement management strategies for its long-term conservation. Dietary specialisations include the loss of teeth, a modified gut with a high rate of passage, exceptionally low minimum nitrogen requirements, an apparently high basal metabolic rate and a permanently polyuric kidney. In contrast, its reproductive physiology is plesiomorphic, combining aspects such as a post-partum oestrus, embryonic diapause, photoperiodicity and extended maternal care that are usually separate characteristics of other marsupial groups. In common with a number of other marsupials, the honey possum has the potential for trichromatic colour vision and has been the subject of several studies attempting to correlate visual quality with ecological realities. Field physiological studies have established its high rates of nectar and pollen intake needed to maintain energy balance and highlight the need for a constant intake from floral sources. Early allometric studies suggesting that the honey possum's relatively low reproductive rate may be linked to a diet limited in protein have not been supported and nitrogen intakes in the field exceed by a factor of 10 the animal's basic requirements for balance. Measurements of rates of protein turnover in field-caught lactating females suggest that they divert nitrogen from the protein pool to milk production by reducing rates of degradation, rather than by increasing rates of synthesis of protein. Although not yet an endangered species, the honey possum's habitat has been drastically reduced since European occupation of Australia and future-targeted research on the animal's unique physiology and habitat linkage is needed that can be translated into effective management practices. Only then will its long-term survival be assured.

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Kidney Structure in Neotropical Bats

Cited by 31 publications

References 17 publications

Relationships between renal morphology and diet in 26 species of new world bats (suborder microchiroptera)

Relationships between renal morphology and diet in 26 species of new world bats (suborder microchiroptera)

Kidney Structure and Renal Indexes of Dasyurid Marsupials

The physiology of the honey possum, Tarsipes rostratus, a small marsupial with a suite of highly specialised characters: a review

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