Results 121 to 130 of about 143,183 (293)

Understanding natal emigration in group‐living carnivores

Journal of Animal Ecology, EarlyView.
Dispersal is a key ecological and evolutionary process, yet drivers of variation in emigration under human‐modified conditions remain understudied. Using a novel genetic approach applied to harvested grey wolves in Idaho, USA, we found that prey availability and population density shape natal emigration patterns in a cooperative breeder.
Kathleen M. Petersen, Joel M. Tebbenkamp, Matthew A. Mumma, David E. Ausband   +3 more
wiley   +1 more source

Predator prey model with prey harvesting, cross diffusion, intraspecific predator competition, and periodic parameters

Electronic Journal of Qualitative Theory of Differential Equations
We develop a predator prey model with logistic prey growth, linear predation, proportional harvesting, and predator intraspecific competition. Starting from an autonomous ordinary differential equation (ODE) model, we extend it to reaction-diffusion ...
Satyam Srivastava, Seshadev Padhi, Julio Dix, Alexander Domoshnitsky, Aryadev Padhi   +4 more
doaj   +1 more source

Early‐life environment drives long‐term decrease in adult body mass in a wild bird population

Journal of Animal Ecology, EarlyView.
Using more than 90,000 body mass measures of adult and nestling great tits Parus major, we show that the 1 SD decline in adult mass between 1978 and 2024 is a consequence of changes in the environment (i.e. increase in population density) experienced at early life.
David López‐Idiáquez, Ella F. Cole, Devi Satarkar, Samuel J. Crofts, Keith McMahon, Ben C. Sheldon   +5 more
wiley   +1 more source

Population status of the native Cottus gobio after removal of the alien Salmo trutta: a case-study in two Mediterranean streams (Italy)

Knowledge and Management of Aquatic Ecosystems, 2018
In the Mediterranean area, one of the major threats to freshwater fish fauna is represented by the introduction of alien species. The bullhead, Cottus gobio, is a species of great conservation interest threatened by the massive introduction of hatchery ...
Lorenzoni Massimo, Carosi Antonella, Giovannotti Massimo, Porta Gianandrea La, Splendiani Andrea, Barucchi Vincenzo Caputo   +5 more
doaj   +1 more source

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

Insect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

From the predator to the prey: a case study of the vulnerability of Harmonia axyridis to aggressive competitors

Insect Science, EarlyView.
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer, Kent Marcial Catubis, François Dumont, Eric Lucas   +3 more
wiley   +1 more source

Causal linkages between prey behavior and predation risk: controlled experiments reveal behavioral effects of predation risk on white-tailed deer

, 2022
While our understanding of risk effects and their broader consequences is rooted in small-scale, mesocosm experiments, much attention has been given to their prevalence and consequences in carnivore-ungulate systems where logistical constraints largely ...
Crawford, Daniel A.
core  

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

Insect Science, EarlyView.
Fertilization level influences pest control effectiveness in tomato crops. High fertilization increases plant growth and aphid density but reduces the performance of the parasitoid Aphidius ervi. In contrast, the predator Adalia bipunctata maintains consistent aphid suppression regardless of fertilization regime.
Ruohan Ma, Maceo Valente, Roger Boll, Peng Han, Nicolas Desneux, Anne‐Violette Lavoir   +5 more
wiley   +1 more source

Mainland diversification and recent island lineages in the reduviid genus Tapirocoris: an integrative taxonomic framework with four new species

Insect Science, EarlyView.
Using an integrative taxonomic framework that combines COI DNA barcodes, geometric morphometrics and phylogeography, we revise the assassin bug genus Tapirocoris and recover seven well‐supported species, including four newly described cryptic species.
Ping Zhao, Qinpeng Liu, Minmin Ou, Huaiyu Liu, Yingqi Liu, Jianyun Wang, Miao Yang, Zhuo Chen, Wanzhi Cai   +8 more
wiley   +1 more source

Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived bacterial semiochemicals

Insect Science, EarlyView.
Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived airborne semiochemicals. Egg‐borne bacterial symbionts, and Serratia marcescens in particular, produce odorants which attract gravid female flies and elicit oviposition.
Emmanuel Hung, Anya Gould, Stephanie Zaborniak, Caelen Watson, Regine Gries, Sukhmani Kaur, Kyra Stephens, Augustus Negraeff, Ryan Lam, Alpha Hui, Pantea Zamani, Aryan Monfared, Gerhard Gries   +12 more
wiley   +1 more source