scholarly journals Second observation of the reproductive biology of Blythia reticulata (Blyth, 1854) (Reptilia, Squamata, Colubridae)

Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 121-124
Author(s):  
Lal Biakzuala ◽  
Vanlal Hruaia ◽  
Lal Biakhlui ◽  
Hmar Tlawmte Lalremsanga
Keyword(s):  
Natural History ◽  
Leaf Litter ◽  
Reproductive Biology ◽  
Tail Length ◽  
Breeding Biology ◽  
Limited Knowledge ◽  
Northeastern India ◽  
History Of

A second observation on the reproduction of Blythia reticulata was based on three eggs found on a forest path among leaf litter and successfully incubated. Given the limited knowledge on the natural history of the species, including its breeding biology, we provide information on egg measurements (n = 3; length = 25.54 ± 1.05 mm; width = 11.79 ± 0.37 mm; weight = 1.94 ± 0.24 g) and the first data on hatchling biometrics (n = 3; snout-vent length = 106 ± 1.73 mm; tail length = 14 ± 1.00 mm; weight = 1.13 ± 0.09 g) from Mizoram State, northeastern India.

Sexual dimorphism, deformations, and epibionts of Phrynops tuberosus (Testudines, Chelidae)

2015 ◽  
Vol 65 (3-4) ◽  
pp. 311-320 ◽  
Author(s):  
João Fabrício Mota Rodrigues ◽  
José Roberto Feitosa Silva
Keyword(s):  
Sexual Dimorphism ◽  
Natural History ◽  
Tail Length ◽  
Condition Index ◽  
Head Width ◽  
Body Condition Index ◽  
Future Studies ◽  
History Of ◽  
One Year ◽  
Effective Conservation

Studies focusing on the natural history of species are essential for developing effective conservation measures and evaluating ecological hypotheses. To this end, we describe natural history data of the Cotinga River toadhead turtle, Phrynops tuberosus, in the Banabuiú River in Ceará, Brazil, and evaluated sexual dimorphism, epibionts, and mutilation effects. We hand-captured 134 individuals by snorkeling, over a period of one year, resulting in the capture of 94 males, 24 females, and 16 juveniles. Females had larger head width and body mass than males, while males had longer tail length. One quarter of the turtles captured had some sort of injury or deformation, most common injuries being missing claws, mutilations, and shell deformations. We found no difference in body condition index between mutilated and non-mutilated animals. Mollusks, insects, and leeches were found as epibionts on P. tuberosus and most of the captured turtles had extensive algal cover. Future studies should focus on understanding the effect of mutilations on animal fitness and reproductive success.

scholarly journals REDESCRIPTION OF Minervarya nicobariensis (STOLIZKA, 1870) (AMPHIBIA: DICROGLOSSIDAE) WITH A NEOTYPE DESIGNATION

2020 ◽  
pp. 205-209
Author(s):  
S.R. Chandramouli ◽  
K.V. Devi Prasad
Keyword(s):  
Natural History ◽  
Conservation Status ◽  
Breeding Biology ◽  
Larval Morphology ◽  
Frog Species ◽  
History Of ◽  
New Material ◽  
Insular Endemic

The poorly-known, insular endemic frog species, Minervarya nicobariensis (Stoliczka, 1870) is re-described based on new material from the Nicobar Archipelago. A neotype is designated as its holotype had been lost. Novel data on biology, ecology, distribution and natural history of this poorly known species are provided. Breeding biology and larval morphology are described in detail. Potential threats to the species are discussed and an assessment of its conservation status is attempted.

Natural history of Corythucha juglandis and Gargaphia tiliae (Hemiptera: Tingidae) in Ontario and Québec, Canada

2019 ◽  
Vol 151 (04) ◽  
pp. 475-497 ◽  
Author(s):  
M. Javahery
Keyword(s):  
Natural History ◽  
Leaf Litter ◽  
Site Selection ◽  
Short Distance ◽  
Host Plants ◽  
Reproductive Potential ◽  
Reproductive Diapause ◽  
History Of ◽  
Chorion Formation ◽  
New Generation

AbstractThe natural history of Corythucha juglandis (Fitch) and Gargaphia tiliae (Walsh) (Hemiptera: Tingidae) was studied in Ontario and Québec, Canada. These univoltine species overwinter as adults in leaf litter in a state of reproductive diapause and become active in April or May. They are specific to their host plants. Adults, eggs, and nymphs of both species were collected from the underside of leaves of host plants. The reproductive systems of both male and female, as well as eggs, nymphs, and operculum of the eggs of the two species, are described and illustrated. Fecundity, incubation period, development of nymphs, feeding, mating, and oviposition were studied. Mating was end-to-end at an angle of 35–40°. The reproductive potential, oviposition pattern, and site selection in the two species were investigated. Parental care of eggs and brood of G. tiliae is also reported and illustrated. Ocelli, true spermathecae, true egg micropyles, and true egg burster are absent in the two species. Fertilisation takes place before chorion formation. Adults, nymphs, and new generation aggregate on the underside of leaves of their host or nearby deciduous plants. In October they fly a short distance to overwintering sites within leaf litter.

Natural history of Phelsuma madagascariensis kochi from a dry forest in Madagascar

2005 ◽  
Vol 26 (4) ◽  
pp. 475-483 ◽  
Author(s):  
Isami Ikeuchi ◽  
Masami Hasegawa ◽  
Akira Mori
Keyword(s):  
Natural History ◽  
Rainy Season ◽  
Tail Length ◽  
Dry Forest ◽  
Visual Modality ◽  
Home Ranges ◽  
Foraging Mode ◽  
Ambient Temperatures ◽  
Census Methods ◽  
History Of

AbstractNatural history of the diurnal gecko, Phelsuma madagascariensis kochi, was investigated with mark-and-recapture and census methods from the end of the dry season to the middle of the rainy season in a dry forest of Madagascar. Males were larger than females in snout-vent length, tail length, and body mass, and also had relatively larger head widths. Hatchlings were observed only in the rainy season. The geckos passively followed ambient temperatures, rarely basked, but had lower cloacal temperature than air temperature at high air temperatures. They preferred high and thick trees. The frequency of sighting decreased in the rainy season. Foraging mode was sit-and-wait. Home ranges of male P. madagascariensis kochi did not overlap with each other, but partially overlapped with those of females and unsexed individuals. Several ecological traits of P. madagascariensis kochi such as male-biased sexual size dimorphism and possible home range defense, seemed more similar to those of diurnal, arboreal lizards (some iguanids and agamids) relying on the visual modality, rather than to those of nocturnal geckos.

scholarly journals New elevation and locality records and notes on the natural history of the Tamdil Leaf-Litter Frog, Leptobrachella tamdil (Sengupta, Sailo, Lalremsanga, Das, and Das, 2010) (Megophriydae), in Mizoram, India

2021 ◽  
Vol 28 (2) ◽  
pp. 295-297
Author(s):  
Lal Muansanga ◽  
Vanlal Siammawii ◽  
Gospel Zothanmawia Hmar ◽  
Fanai Malsawmdawngliana ◽  
Lal Biakzuala ◽  
...  
Keyword(s):  
Natural History ◽  
Leaf Litter ◽  
History Of

A new species of the genus Fernandezina Birabén, 1951 (Araneae: Palpimanidae: Otiothopinae) from Colombia

Zootaxa ◽  
2021 ◽  
Vol 4949 (3) ◽  
pp. 596-600
Author(s):  
LEONEL MARTÍNEZ ◽  
LUIS CARLOS GUTIERREZ
Keyword(s):  
New Species ◽  
Natural History ◽  
Leaf Litter ◽  
Biological Collections ◽  
Single Sex ◽  
History Of ◽  
Field Campaigns ◽  
Systematic Understanding ◽  
A New Species

Specimens of the palpimanid spider subfamily Otiothopinae Platnick are commonly collected in soil and leaf litter in tropical and subtropical environments (Platnick 1975; Cala-Riquelme et al. 2018). However, otiothopines are generally poorly represented in biological collections and usually collected in low numbers during field campaigns, with many species represented by only a single sex (Cala-Riquelme et al. 2018). These difficulties, combined with our scarce knowledge of the biology and natural history of these spiders, mean that there are regional gaps in our systematic understanding of the group. Thus, taxonomic additions and notes about natural history are essential in order to increase our knowledge of the group and gradually close those gaps.  

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