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Fecundity
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Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2022) 42 (2): 326–351.
Published: 20 May 2022
... restricted to cool, moist habitats are less exposed to the threat of wildfire, they had the highest sensitivity scores. This is due to their typically low fecundity, reliance on micro-refugia away from water for reproduction and shelter, and small, isolated distributions. The group considered least sensitive...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2010
10.7882/FS.2010.015
EISBN: 978-0-9803272-3-6
... fauna include either a lack of habitat specialisation or a habitat preference for moist environments, high fecundity, a lack of dietary specialisation, and small size. In contrast, a habitat specialisation for sandstone environments (other than caves), stenophagy, low fecundity and large size combined...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 31 (4): 563–598.
Published: 17 March 2014
... in disturbed or newly created sites, high fecundity and high dispersal ability. However, unlike many “colonizing” species that are very common, L. aurea is considered to be endangered. Though the decline of L. aurea is continuing as a result of ongoing threats, it should be possible to promote some recovery...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 33 (2): 141–165.
Published: 17 March 2014
... by the appearance of gonads through the transparent window anterior to the vent close to the breeding season. Fecundity of the females varied from 2300 eggs at 86mm body length and 4.7gm body weight to 7000 eggs at 136mm length and 19gm weight. The gonosomatic index rose to 40.0 and 31.2 in females and males...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 33 (4): 480–510.
Published: 17 March 2014
.... The longest fish from the western population was 99.0mm. Fecundity varied from 284 to 1300 eggs. The gonosomatic index of females and males ranged from 1.26 - 11.74 and 0.18 - 2.16 respectively. The mean length of fish reared in an aquarium measured 33.0 and 50.0mm at one and two years old, respectively. Eggs...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 31 (2): 365–375.
Published: 17 March 2014
... varied greatly regarding ease of handling, aggression, odour, property damaging behaviour and fecundity. Management history of individual animals affected responses: quolls kept as house pets (rather than permanently caged) elicited the most positive responses on the suitability of quolls as pets...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 32 (1): 62–68.
Published: 17 March 2014
...Tanya Hengl; Shelley Burgin Limnodynastes peronii was observed to successfully breed in small urban impoundments. Fecundity, egg viability and hatching success varied significantly, spatially and temporally. The predominant influence on breeding success was therefore deduced to be environmental...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2012
10.7882/FS.2012.011
EISBN: 978-0-9803272-6-7
... in the composition of microbial communities on algal surfaces and can be induced via exposure to ambient seawater microbes and cultures of putative pathogens. Direct consequences of bleaching include reductions in algal growth and fecundity. Bleaching also has indirect ecological effects on the alga, with bleached...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 35 (3): 750–756.
Published: 20 October 2011
.... The species is an Autumn-Spring brooder with a distinctly low fecundity and large, ovoid eggs (3.0 × 3.8 mm), and females do not appear to routinely moult prior to spawning. At some sites, the species co-occurs with the much larger and spinier E. sulcatus . A high incidence of regenerate chelipeds, missing...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 32 (1): 76–100.
Published: 17 March 2014
.... 76 April 2002 Australian Zoologist volume 32 (1) Introduction There is considerable diversity among the life histories of mammals, and differences in fecundity and survival can have a remarkable effect on populations (Harvey et al. 1989). These differences may be arranged along a fast slow...
Book Chapter
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2007
10.7882/FS.2007.006
EISBN: 978-0-9803272-1-2
... an inheritable gene into the population that limits the abundance of the highly fecund females, and the identification of discrete and finite carp breeding hot-spots within river systems, in order to provide targeted control options. ...
Book Chapter
By
Don Fletcher
Series: Other RZS NSW Publications
Publisher: Royal Zoological Society of New South Wales
Published: 01 January 2007
10.7882/FS.2007.016
EISBN: 978-0-9803272-1-2
... in drought years in spite of food shortage or high density. In testing the claims against the evidence, age-specific fecundity, demographic sensitivity, and age structure of M. giganteus populations are quantified. The hypothesis of Arnold et al . (1991) and Dawson (1995), that mortality of sub-adults...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 32 (3): 401–405.
Published: 17 March 2014
... of life history traits Ibid 36 962 83 Cummings, C.F. 1986. Temporal and spatial variation in egg size and fecundity in Rana temporaria. Journal of Animal Ecology 55: 303-16. Temporal and spatial variation in egg size and fecundity in Rana temporaria Journal of Animal Ecology 55 303 16...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2023) 43 (3): 491–492.
Published: 08 December 2023
... their origin in the Jurassic Period, and their enduring diversity was sustained by inhabiting deep water which protected them from subsequent cataclysms which befell those near to the surface and land-based animals. On the other hand, what is common to sharks is their low fecundity which, in the era...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 35 (3): 627–632.
Published: 20 October 2011
... parameters such as size at maturity and fecundity (Conrath and Musick 2002; Kyne and Bennett 2002). Elasmobranch populations of little to no economic importance are often subjected to increased pressure when they form a large component of commercial fishing bycatach (non-targeted catch) (Graham et al. 2001...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2019) 40 (1): 13–24.
Published: 01 January 2019
..., it is clear that certain species (whether from marine or terrestrial ecosystems) are predisposed to major population fluctuations due to their exceptional reproductive potential. Crown-of-thorns Starfish, or at least A. cf. solaris (as we are yet to measure fecundity of other Acanthaster spp. from the Indian...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2014) 37 (1): 76–84.
Published: 02 June 2014
... Categories and Criteria. Version 9.0 International Union for Conservation of Nature Species Survival Commission, Gland, Switzerland and Cambridge, United Kingdom. Karlsson, B. and Wiklund, C. 2005. Butterfly life history and temperature adaptations: dry open habitats select for increased fecundity...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2024) 44 (1): 128–130.
Published: 23 August 2024
... threat. As it is a large predator, it is generally at higher risk of extinction due to its limited range, slow sexual maturity and low fecundity. Increasing high intensity fires in the restricted habitats that this species inhabits have recently been highlighted with concern (Santos et al. 2022...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 34 (4): 476–498.
Published: 20 October 2011
.... The monthly GSI for males followed females closely and declined in February and March (Fig. 11), at the end of the breeding season. The numerous low GSIs in the undated fish suggest that these were taken during the non breeding season. Fecundity The measurement of fecundity, the number of eggs spawned...
Journal Articles
Journal:
Australian Zoologist
Australian Zoologist (2011) 34 (1): 1–21.
Published: 04 October 2011
..., stages of maturation of the gonads, fecundity and Gonosomatic Indices (GSI s) were determined (G.S.I. = weight of gonad X 100/weight of body, Belsare 1962, Mackay 1973). Results A complete record of fish collected is shown in Table 1. The only large sample obtained (n=30) from the Murray Darling were...
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