Aging Criteria, Pelage Colour Polymorphism and Moulting in Rhinolophus Megaphyllus (Chiroptera) From South-Eastern Queensland, Australia

Young, R. A.

doi:10.1515/mamm.1975.39.1.75

Cited by 6 publications

(11 citation statements)

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“…They concluded that some females delayed new fur growth during lactation (both species), and that when this delay resulted in incomplete new fur growth by the winter period, some bats inhibited new fur growth again for a short period in the winter (M. s. blepotis only). Similarly, adult male smaller horseshoe bats (Rhinolophus megaphyllus Gray, 1834) observed in Queensland, Australia (Young 1975), initiated new fur growth in early summer, whereas adult females appeared to initiate new fur growth asynchronously at varying times throughout the summer and early fall. Some subadults of both sexes started new fur growth at about 3 months of age, but did not appear to complete the moult cycle until the subsequent year.…”

Section: What Are the General Patterns?mentioning

confidence: 99%

“…Although there has been substantial documentation of moulting in bats, much of it describes annual changes in fur colour because this characteristic was under consideration to be a taxonomic identifier (e.g., Andersen 1917;Constantine 1957;Young 1975). Quay (1970) provided a brief review of moulting in bats and suggested that, in general, bat species grow new fur once annually (usually in late summer-fall) and that males tend to grow new fur before females.…”

Section: Moulting In Mammalsmentioning

confidence: 99%

“…Because fur is increasingly being used in endogenous marker analyses for studies of bat ecology (e.g., Cryan et al 2004Cryan et al , 2012Voigt and Kelm 2006;Britzke et al 2009Britzke et al , 2012Painter et al 2009;York and Billings 2009;Fraser et al 2010Fraser et al , 2012Erzberger et al 2011;Ossa et al 2012;Popa-Lisseanu et al 2012;Sullivan et al 2012;Voigt et al 2012aVoigt et al , 2012bVoigt et al , 2013, there is renewed interest in understanding the moulting cycle on a species by species basis. Since the review by Quay (1970), numerous papers reporting moulting data in various bat species have been published (e.g., Davis and Barbour 1970;Kunz 1973Kunz , 1974Young 1975;Timm 1989;Ilyin 1990;Voigt et al 2003;Cryan et al 2004Cryan et al , 2012Tiunov and Makarikova 2007;Alagaili et al 2011;Fraser et al 2012).…”

Section: Moulting In Mammalsmentioning

confidence: 99%

“…First and most commonly, researchers documented new fur growth by observing patterns of darkened skin pigmentation on study skins (Constantine 1957;Mazák 1965;Smith 1972;Ilyin 1990;Tiunov and Makarikova 2007) or live animals (Dwyer 1963(Dwyer , 1968Kunz 1973Kunz , 1974Young 1975). Second, in some species, using both live animals and prepared specimens, it was possible to visually detect areas of new fur growth based on differences in fur colour, (Andersen 1917;Davis 1963;Dwyer 1963Dwyer , 1968Smith 1972;Young 1975;Starrett 1976;Alagaili et al 2011), density (Alagaili et al 2011), and the presence of short, newly grown fur (Andersen 1917;Mazák 1965;Jones and Genoways 1967;Young 1975). Similarly, Cryan et al (2012) cut fur from the mid-scapular region of the big brown bat (Eptesicus fuscus (Beauvois, 1796)) and recaptured the same individuals multiple times, documenting the progress of new fur growth.…”

Section: Moulting In Batsmentioning

confidence: 99%

“…In many cases, unusual fur growth timing was related to sex and (or) age. For example, three studies of species from Australia (Dwyer 1963(Dwyer , 1968Young 1975) all reported that moult timing in adult males was more predictable than that of females and in some cases, young of the year. Dwyer (1963Dwyer ( , 1968 observed that while adult male M. s. blepotis and little long-fingered bats (Miniopterus australis Tomes, 1858) in New South Wales had new fur growth once during the summer, some adult females were engaged in new fur growth at all times of the year.…”

Section: What Are the General Patterns?mentioning

confidence: 99%

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Moulting matters: the importance of understanding moulting cycles in bats when using fur for endogenous marker analysis

2013

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Endogenous markers are a valuable indicator of individual animal ecology, but data interpretation requires a detailed understanding of the timing of tissue formation. Fur is commonly used in bat research using endogenous markers, but the moulting cycles of most bat species are not well documented. In this review, we (i) describe methods of investigating bat moulting; (ii) summarize the current literature on bat moulting cycles, highlighting broad trends; (iii) discuss knowledge gaps; and (iv) make recommendations for optimal fur sampling protocols. Three characteristics may indicate moulting in bats: changing skin pigmentation; visible fur growth and colour changes; and endogenous markers. Most studies reported new fur growth once annually during summer-fall, although there were exceptions. The timing of new fur growth varies among species, sexes, and age classes. Individuals commonly experience asynchronous new fur growth, with dorsal fur growth occurring before ventral. Specific moult progressions vary among species. Knowledge gaps include moulting cycles in tropical species and in subadult and yearling bats; migration during new fur growth; and the timing of fur growth compared with shedding. We recommend that fur samples taken dorsally from adult males are the most likely to be representative of the bat's site of summer residency.Résumé : Si les marqueurs endogènes constituent un indicateur utile de l'écologie individuelle des animaux, l'interprétation de ces données nécessite une compréhension détaillée du moment de la formation des tissus. Bien que le poil soit couramment utilisé dans la recherche sur les chauves-souris axée sur des marqueurs endogènes, les cycles de mue de la plupart des espèces de chauves-souris ne sont pas bien documentés. Dans le présent article, nous (i) décrivons des méthodes permettant d'étudier la mue des chauves-souris, (ii) présentons une synthèse des travaux existants sur les cycles de mue des chauves-souris pour en faire ressortir de grandes tendances, (iii) abordons les lacunes sur le plan des connaissances et (iv) formulons des recommandations relatives à des protocoles optimaux d'échantillonnage du poil. Trois caractéristiques pourraient indiquer qu'une chauve-souris est en mue, à savoir : un changement de la pigmentation de la peau, la croissance et des changements de couleur visibles des poils, ainsi que des marqueurs endogènes. Bien qu'il existe des exceptions, la plupart des études font état d'une croissance de nouveaux poils une fois l'an, à l'été-l'automne. Le moment de la croissance de nouveaux poils varie selon l'espèce, le sexe et la classe d'âge. Les individus présentent souvent une croissance non synchrone de nouveaux poils, la croissance des poils dorsaux étant plus hâtive que celle des poils ventraux. La progression de la mue varie également selon l'espèce. Les lacunes sur le plan des connaissances touchent notamment aux cycles de mue des espèces tropicales et des chauves-souris subadultes et d'un an, à la migration durant la croissance de nouveaux poils et au mo...

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Section: What Are the General Patterns?mentioning

confidence: 99%

Section: Moulting In Mammalsmentioning

confidence: 99%

Section: Moulting In Mammalsmentioning

confidence: 99%

Section: Moulting In Batsmentioning

confidence: 99%

Section: What Are the General Patterns?mentioning

confidence: 99%

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Moulting matters: the importance of understanding moulting cycles in bats when using fur for endogenous marker analysis

2013

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Observations on the Reproductive-Biology and Anatomy of Rhinolophus-Megaphyllus (Chiroptera, Rhinolophidae) in Eastern Australia

Krutzsch¹,

Young²,

Crichton³

1992

Aust. J. Zool.

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The anatomy and chronology of reproductive events in male and female Rhinolophus megaphyllus from eastern Australia (27-32-degrees-S.) is discussed. Rhinolophus megaphyllus was monoestrous and monotocous. A delay of several months occurs between the delivery of spermatozoa to the caudae epididymides (late summer/early autumn) and copulation/ovulation/conception (winter), which occur towards the termination of the spermatogenic cycle. There is no storage of sperm in female tracts prior to ovulation but epididymal sperm storage persists beyond the time of birth (late spring). Male, but not female, readiness to initiate reproduction prior to the onset of winter, places this species in an 'intermediate' position with features of both temperate and tropical chiropteran reproductive cycle patterns. The presence of an extroverted corpus luteum in the female and of a complement of accessory sex organs in the male are normal glandular features for members of this chiropteran family. The role of the urethral gland is unknown; however, since there is no vaginal plug, its products apparently do not coagulate in the vagina in this species following insemination.

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Researhes on on Bats of Ankara Province (Mammalia Chiroptera)

Albayrak¹

1985

Communications, Faculty of Science, University of Ankara Series C Biology, Geological Engineering and Geophysical Engineering

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The aim of this study was to research the bat species and their distribution in the Ankara province from June 1974 to May 1976.This study is hased on a total of 265 specimens and related field notes. Ali external measurements and weights were taken in the flesh. The specimens were prepared in the field in conventional museum type.Notes on habitat, colour and distribution of each species were recorded. The specimens were divided into three age groups: infant, juvenile and adult. The tables present only the measurement of the adult groups. The secondary sexual differences between adult males and females were examined statistically. Statistical comparisons were carried out only adequate specimens. Keys were also prepared. on the samples with Our specimens inciude Rhinoîophusferrumequinum, Rhinolophus hipposideros, Rhinolophus mehelyif Myotis myotis, Myotis biythi, Pipistrellus pipistrellus^ Pipistrellus savii, Eptesicus serotinus and Miniopterus schreibersi. This is the first record of Pipistrellus savii (or Central Anatolia. However, its first record for Anatolia was from Southern Turkey. From the above species only Rhinolophus ferrumequinum and Pipistrellus pipistrellus were recorded earlier and ali others are new records for the Ankara province.

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Aging Criteria, Pelage Colour Polymorphism and Moulting in Rhinolophus Megaphyllus (Chiroptera) From South-Eastern Queensland, Australia

Cited by 6 publications

References 0 publications

Moulting matters: the importance of understanding moulting cycles in bats when using fur for endogenous marker analysis

Moulting matters: the importance of understanding moulting cycles in bats when using fur for endogenous marker analysis

Observations on the Reproductive-Biology and Anatomy of Rhinolophus-Megaphyllus (Chiroptera, Rhinolophidae) in Eastern Australia

Researhes on on Bats of Ankara Province (Mammalia Chiroptera)

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