Results 181 to 190 of about 2,529 (215)

Factors influencing daily nest survival rates of Aleutian terns in the Kodiak Archipelago, Alaska

The Journal of Wildlife Management
AbstractThe Aleutian tern (Onychoprion aleuticus) is a species of high conservation concern in Alaska, USA, owing to large declines at known breeding locations since the 1960s. The small population size and ephemeral behavior of this species have limited the collection of basic biological information and hindered the identification of potential drivers
Jill E. Tengeres, Katie M. Dugger, Robin M. Corcoran, Donald E. Lyons   +3 more
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NEST-SITE CHARACTERISTICS AFFECT DAILY NEST-SURVIVAL RATES OF NORTHERN APLOMADO FALCONS (FALCO FEMORALIS SEPTENTRIONALIS)

The Auk, 2008
Abstract We modeled daily nest-survival rates (DSR) of a reintroduced population of Northern Aplomado Falcons (Falco femoralis septentrionalis; hereafter “falcons”) in southern Texas. Although falcons have nested in the region since 1995, the factors influencing reproductive success are not understood.
JESSI L. BROWN, MICHAEL W. COLLOPY
openaire   +1 more source

Daily Survival Rate for Nests and Chicks of Least Terns (Sternula antillarum) at Natural Nest Sites in South Carolina

Waterbirds, 2013
Abstract. Although a species of conservation concern, little is known about the reproductive success of Least Terns (Sternula antillarum) throughout the southeastern USA where availability of natural beaches for nesting is limited. Daily survival rate (DSR) of nests and chicks was examined at four natural nesting sites in Cape Romain National Wildlife ...
Gillian L. Brooks, Felicia J. Sanders, Patrick D. Gerard, Patrick G. R. Jodice   +3 more
openaire   +1 more source

Daily nest survival rates of Gunnison Sage-Grouse ( Centrocercus minimus ): assessing local- and landscape-scale drivers

The Wilson Journal of Ornithology, 2015
The Gunnison Sage-Grouse (Centrocercus minimus) is a species of conservation concern and is a candidate for listing under the U.S. Endangered Species Act because of substantial declines in populations from historic levels. It is thought that loss, fragmentation, and deterioration of sagebrush (Artemisia spp.) habitat have contributed to the decline and
Thomas R. Stanley, Cameron L. Aldridge, D. Joanne Saher, Theresa M. Childers   +3 more
openaire   +1 more source

Observer effects strongly influence estimates of daily nest survival probability but do not substantially increase rates of nest failure in Greater Sage-Grouse

The Auk, 2015
ABSTRACT Researchers have long recognized that the process of observing nests may influence nest success by increasing depredation risk or causing females to abandon nests. The effects of observer-related nest abandonment may also reduce estimates of daily nest survival when time to nest fate is reduced and the average nest exposure period within the ...
Daniel Gibson, Erik J. Blomberg, Michael T. Atamian, James S. Sedinger   +3 more
openaire   +1 more source

Relationship between daily survival rates of larval Japanese anchovy (Engraulis japonicus) and concentrations of copepod nauplii in the Seto Inland Sea, Japan

Fisheries Oceanography, 2007
AbstractWe attempted to estimate the survival rates of larval cohorts (3–15 mm in body length) of the Japanese anchovy Engraulis japonicus population in Hiuchi‐nada, Seto Inland Sea, Japan, and examined the relationship to their food availability. The survival rates were directly calculated from the change in larval density during the survey.
HIROMU ZENITANI, NAOAKI KONO, YOUICHI TSUKAMOTO   +2 more
openaire   +1 more source

Potential impact on survival of improved tumor downstaging and resection rate by preoperative twice-daily radiation and concurrent chemotherapy in stage IIIA non-small-cell lung cancer.

Journal of Clinical Oncology, 1997
PURPOSE The main objectives of this study were (a) to ascertain the feasibility and toxicity of preoperative twice-daily radiation therapy and concurrent chemotherapy, surgery, and postoperative therapy in stage IIIA (N2) non-small-cell lung cancer (NSCLC), and (b) to evaluate tumor response, resection rate, pathologic tumor downstaging, and survival ...
N C, Choi, R W, Carey, W, Daly, D, Mathisen, J, Wain, C, Wright, T, Lynch, M, Grossbard, H, Grillo   +8 more
openaire   +2 more sources

Daily survival rate of nests is lower in fruiting than non-fruiting tree species for a Hawaiian forest bird, the Kaua̒i ̒elepaio ( Chasiempis sclateri )

The Wilson Journal of Ornithology, 2016
ABSTRACT Nest-site characteristics are important drivers of nest success in birds, and are particularly important to understand in systems where anthropogenic factors may exacerbate their negative effects on population demographics. In Hawaii, it is suggested that forest bird nests in fruiting tree species may have higher rates of nest predation than ...
openaire   +1 more source

How Do Daily Survival Rates of Nests Change During the Incubation Period for Ducks Nesting on Great Salt Lake Marshes?

We examined how daily survival rates (DSRs) of duck nests change over the course of the incubation period using cinnamon teal (Spatula cyanoptera), mallards (Anas platyrhynchos), and gadwalls (Mareca strepera) nesting in the marshes around Great Salt Lake, Utah, USA.
Bell, Mark E., Conover, Michael R.
openaire   +1 more source

Health insurance status and cancer stage at diagnosis and survival in the United States

Ca-A Cancer Journal for Clinicians, 2022
Leticia Nogueira, Xuesong Han, Ahmedin Jemal   +2 more
exaly