Among ray-finned fishes that provide parental care, many spawn in constructed nests,
ranging from bowls, burrows and ridges to nests made of algae or bubbles. Because a nest …

The second important evolutionary insight is that the greater investment by females in each
reproductive event usually takes females out of the reproductive population for longer …

The operational sex ratio (OSR) and density are considered important factors affecting the
strength of sexual selection. Although there is increasing evidence that OSR and density …

Introduction One of the most important decisions that an animal has to make in its life is
choosing a mate. Although most studies in sexual selection assume that mate choice is …

Aggressive behavior can be an important factor in determining how animals use and divide
space and resources. Previous studies have shown that aggression in fishes can be …

Little is understood about how environmental heterogeneity influences the spatial dynamics
of sexual selection. Within human‐dominated systems, habitat modification creates …

Parental defense of offspring may be risky, so parents should balance costs and benefits,
making context-dependent decisions based on the threat to offspring. Our previous field …

The expected quality of paternal behavior can influence female mating decisions and
determine male mating success. We evaluated the importance of oviposition site quality …

Although size-assortative mating in convict cichlids, Amatitliana nigrofasciata, is supposed to
result from mutual mating preference for larger individuals, female choice in relation to male …

While territorial aggression is a prerequisite for reproduction in many animals, individuals
need to balance its benefits against the costs. Territorial neighbours can influence these …