Breeding Periods of Newt and Slow-worm
نویسندگان
چکیده
منابع مشابه
The “False Breeding Season” of the Eastern Newt, Notophthalmus viridescens
The terrestrial red eft stage is so different from the body form of the aquatic adult of the eastern newt that the two were considered separate species for nearly 60 years. Some populations lack the eft stage whereas in other populations the adults are aquatic only during the breeding season. In populations in which the adults are permanently aquatic or migrate to breeding ponds in fall, an aut...
متن کاملSlow Diffusion Underlies Alternation of Fast and Slow Growth Periods of Microtubule Assembly
In vitro microtubule assembly exhibits a rhythmic phenomenon, that is, fast growth periods alternating with slow growth periods. Mechanism underlying this phenomenon is unknown. Here a simple diffusion mechanism coupled with small diffusion coefficients is proposed to underlie this phenomenon. Calculations based on previously published results demonstrate that such a mechanism can explain the d...
متن کاملLife History of the Striped Newt at a North-central Florida Breeding Pond
I studied the life history of Striped Newts (Notophthalmus perstriatus) at a breeding pond in north-central Florida. Newts were captured in pitfall traps at a drift-fence as they migrated into and out of the pond basin. During the 2-year study, I recorded 10,290 captures (8,127 individuals) of newts at the drift-fence. Newts were active during each month of the study, but there were four peak a...
متن کاملHabitat Selection and Activities of Dabbling Ducks during Non-Breeding Periods
Western Tennessee is an important region for waterfowl during non-breeding periods, supporting >40% of the Mississippi Flyway population of American black ducks (Anas rubripes). Understanding habitat selection and activities of waterfowl during the non-breeding period is important for directed habitat management on national wildlife refuges and in other wetlands important in meeting regional wa...
متن کاملEffect of Seasons and Different Substrates on Growth and Reproduction of the Compost Worm Eisenia Fetida
The experiment was carried out in a factorial arrangement with the base of randomized complete block design in three repetitions. The first factor consisted of 11 bed for eating worm and the second factor is the different seasons (spring and autumn) respectively. Traits was including number of capsules (Coconut), the number of adult worms, the number of immature worms, live worms masses (mg), m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1921
ISSN: 0028-0836,1476-4687
DOI: 10.1038/108179c0