Results 31 to 40 of about 89,657 (311)
Temporal stability of an endemic Mexican treefrog [PDF]
PeerJ, 2015 The demographic characteristics of an amphibian population fluctuate independently over time, mainly in response to the temporal variation of environmental factors, especially precipitation and temperature.
Griselda Cruz-Ruiz +3 more
doaj +2 more sources
Ciencias Marinas, 1992 Samplings with plankton net, cast net and otter trawl were made every two weeks to estimate the distribution and abundance of Penaeus shrimp postlarvae and juveniles in Kino Bay (IX/89-IX/90) and La Cruz coastal lagoon (VII/89-IV/91), Sonora, Mexico ...
JM Grijalva-Chon, RH Barraza-Guardado
doaj +1 more source
Parasite infections in a social carnivore: Evidence of their fitness consequences and factors modulating infection load [PDF]
, 2019 There are substantial individual differences in parasite composition and infection load in wildlife populations. Few studies have investigated the factors shaping this heterogeneity in large wild mammals or the impact of parasite infections on Darwinian ...
Bush A. O. +10 more
core +1 more source
Belowground Distribution and Abundance of Botrychium Gametophytes and Juvenile Sporophytes
American Fern Journal, 2002 Abstract A significant portion of the stages of the life history of Botrychium, the gametophyte and juvenile sporophytes, are spent belowground. Surveys were conducted to determine the distribution and abundance of belowground gametophytes, juvenile sporophytes and gemmae of eight species of Botrychium.
Cindy Johnson-Groh +3 more
openaire +2 more sources
Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles [PDF]
Caspian Journal of Environmental Sciences, 2019 Persian sturgeon, Acipenser persicus juveniles are annually produced and released (2-3g body weight) to the estuaries surrounding the southern parts of the Caspian Sea by hatchery centers.
S.A Shirangi +3 more
doaj +1 more source
Известия ТИНРО, 2022 Annual data on the 1976–2019 year-classes of pink salmon from Iturup Island are presented, as their number on spawning grounds, abundance of wild and hatchery juveniles migrating downstream, and returns of adult fish after the marine period of life.
A. M. Kaev
doaj +1 more source
Do epigeal termite mounds increase the diversity of plant habitats in a tropical rain forest in peninsular Malaysia? [PDF]
, 2011 The extent to which environmental heterogeneity can account for tree species coexistence in diverse ecosystems, such as tropical rainforests, is hotly debated, although the importance of spatial variability in contributing to species co-existence is well
Beaudrot, Lydia +4 more
core +5 more sources
Genetic Diversity and Potential Function of Microbial Symbionts Associated with Newly Discovered Species of Osedax Polychaete Worms [PDF]
, 2007 We investigated the genetic diversity of symbiotic bacteria associated with two newly discovered species of Osedax from Monterey Canyon, CA, at 1,017-m (Osedax Monterey Bay sp. 3 "rosy" [Osedax sp. MB3]) and 381-m (Osedax Monterey Bay sp.
Goffredi, Shana K. +2 more
core +2 more sources
Revista de Biología Tropical, 2012 Little evidence exists on the dependence between the presence and abundance of juvenile hermatypic corals and the conditions of their habitats, despite that juveniles contribute with the understanding of the community structure and its reproductive ...
Katherine Bernal-Sotelo, Alberto Acosta
doaj +2 more sources
Distribution, abundance, and microhabitat characterization of small juvenile corals at Palmyra Atoll [PDF]
Marine Ecology Progress Series, 2009 Juvenile corals are an important component of the population dynamics of corals, but little is known about the ecology and natural history of their early life-history stages. In demographic surveys, small juvenile corals are often grouped with larger and older corals or overlooked entirely due to their small size and cryptic nature.
MS Roth, N Knowlton
openaire +1 more source