Genetics of the Behavioral Ecology of Egg Parasitoids

2009 ◽  
pp. 149-165 ◽  
Author(s):  
Eric Wajnberg
Keyword(s):  
Behavioral Ecology ◽  
Egg Parasitoids

Behavioral Ecology of Narwhals in a Changing Arctic

2012 ◽  
Author(s):  
Kristin L. Laidre ◽  
Harry Stern ◽  
Mads P. Heide-Jorgensen ◽  
Marianne Rasmussen ◽  
Mikkel V. Jensen
Keyword(s):  
Behavioral Ecology

Behavioral Ecology of Narwhals in a Changing Arctic

2013 ◽  
Author(s):  
Kristin L. Laidre ◽  
Harry Stern ◽  
Mads P. Heide-Joergensen ◽  
Marianne Rasmussen ◽  
Mikkel V. Jensen
Keyword(s):  
Behavioral Ecology

Dynamic Modeling in Behavioral Ecology

2019 ◽  
Author(s):  
MARC MANGEL ◽  
COLIN W. CLARK
Keyword(s):  
Dynamic Modeling ◽  
Behavioral Ecology

scholarly journals Timing, Initiators, and Causes of Divorce in a Mayangna/Miskito Community in Nicaragua

2021 ◽  
Vol 10 (6) ◽  
pp. 212
Author(s):  
Jeffrey Winking ◽  
Jeremy Koster
Keyword(s):  
Gender Differences ◽  
Behavioral Ecology ◽  
Family Studies ◽  
Small Scale ◽  
Buffering Effect ◽  
Individual Preferences ◽  
Partner Preferences ◽  
Divorce Rates ◽  
Oriented Research

There exists a paucity of evolution-oriented research focusing on why relationships end, particularly in comparison to the substantial literature centered around individual preferences that define the beginning of relationships. In contrast, there is a long tradition in the fields of sociology and family studies of exploring divorce; however, this body of research is largely limited to studies of Western populations. We address these gaps in the literature with an examination of patterns of divorce among a small-scale horticultural population in Nicaragua. We test a number of hypotheses derived from behavioral ecology perspective regarding the timing and causes of divorce. Results lend support to all but one of the hypotheses. Overall divorce rates are comparable to U.S. rates; however, they tend to occur earlier in marriages. Children appear to provide a slight buffering effect against divorce, although age in marriage does not. Gender differences in the reported causes of divorce fall along the lines that would be expected due to differences in partner preferences reported in previous research. Finally, this population also exhibits a similar peculiar pattern exhibited by Western populations, in which divorce is more costly for women, and yet women are slightly more likely to initiate divorces than husbands.

scholarly journals Drone-Monitoring: Improving the Detectability of Threatened Marine Megafauna

Drones ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 14
Author(s):  
Jonathas Barreto ◽  
Luciano Cajaíba ◽  
João Batista Teixeira ◽  
Lorena Nascimento ◽  
Amanda Giacomo ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Behavioral Ecology ◽  
Brazilian Coast ◽  
Large Fish ◽  
Monitoring Method ◽  
Camera Angle ◽  
Aerial Vehicles ◽  
Sea Birds ◽  
Systematic Pattern ◽  
Marine Megafauna

Unmanned aerial vehicles (UAVs; or drones) are an emerging tool to provide a safer, cheaper, and quieter alternative to traditional methods of studying marine megafauna in a natural environment. The UFES Nectology Laboratory team developed a drone-monitoring to assess the impacts on megafauna related to the Fundão dam mining tailings disaster in the Southeast Brazilian coast. We have developed a systematic pattern to optimize the available resources by covering the largest possible area. The fauna observer can monitor the environment from a privileged angle with virtual reality and subsequently analyzes each video captured in 4k, allowing to deepening behavioral ecology knowledge. Applying the drone-monitoring method, we have observed an increasing detectability by adjusting the camera angle, height, orientation, and speed of the UAV; which saved time and resources for monitoring turtles, sea birds, large fish, and especially small cetaceans efficiently and comparably.

scholarly journals Rearing Trissolcus japonicus and Trissolcus mitsukurii for Biological Control of Halyomorpha halys

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 787
Author(s):  
Giuseppino Sabbatini-Peverieri ◽  
Christine Dieckhoff ◽  
Lucrezia Giovannini ◽  
Leonardo Marianelli ◽  
Pio Federico Roversi ◽  
...  
Keyword(s):  
Biological Control ◽  
Control Method ◽  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Progeny Production ◽  
Asian Origin ◽  
Frequent Use ◽  
Trissolcus Japonicus ◽  
Cumulative Curves

Halyomorpha halys is a severe agricultural pest of Asian origin that has invaded many countries throughout the world. Pesticides are currently the favored control methods, but as a consequence of their frequent use, often disrupt Integrated Pest Management. Biological control with egg parasitoids is seen as the most promising control method over the long-term. Knowledge of the reproductive biology under laboratory conditions of the most effective candidates (Trissolcus japonicus and Trissolcus mitsukurii) for optimizing production for field releases is strongly needed. Rearing of these egg parasitoids was tested by offering three different host supply regimes using new emerged females and aged, host-deprived females in different combinations. Results showed a mean progeny per female ranging from 80 to 85 specimens for T. japonicus and from 63 to 83 for T. mitsukurii. Sex ratios were strongly female biased in all combinations and emergence rates exceeded 94% overall. Cumulative curves showed that longer parasitization periods beyond 10–14 days (under the adopted rearing regimes) will not lead to a significantly increase in progeny production. However, ageing females accumulate eggs in their ovaries that can be quickly laid if a sufficient number of host eggs are supplied, thus optimizing host resources. Our data showed that offering H. halys egg masses to host-deprived female Trissolcus once a week for three weeks allowed its eggs to accumulate in the ovary, providing the greatest number of offspring within a three week span.

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